CN101490383A - Failure determination device and safety device for internal combustion engine system - Google Patents
Failure determination device and safety device for internal combustion engine system Download PDFInfo
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- CN101490383A CN101490383A CNA2007800260721A CN200780026072A CN101490383A CN 101490383 A CN101490383 A CN 101490383A CN A2007800260721 A CNA2007800260721 A CN A2007800260721A CN 200780026072 A CN200780026072 A CN 200780026072A CN 101490383 A CN101490383 A CN 101490383A
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- combustion engine
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- charging
- pulse pressure
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 235
- 239000000446 fuel Substances 0.000 claims description 105
- 239000007924 injection Substances 0.000 claims description 77
- 238000002347 injection Methods 0.000 claims description 77
- 230000009471 action Effects 0.000 claims description 47
- 238000009434 installation Methods 0.000 claims description 34
- 230000008859 change Effects 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 7
- 238000010278 pulse charging Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 29
- 230000006870 function Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 21
- 230000015572 biosynthetic process Effects 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 231100000331 toxic Toxicity 0.000 description 10
- 230000002588 toxic effect Effects 0.000 description 10
- 238000005507 spraying Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/08—Modifying distribution valve timing for charging purposes
- F02B29/083—Cyclically operated valves disposed upstream of the cylinder intake valve, controlled by external means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Characterised By The Charging Evacuation (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
An ECU (1A) is used for determinating a failure in a pulse supercharging for an internal combustion engine system (100A) which is constructed to have: an internal combustion engine (50A) and a pulse charging valve (15A) for performing pulse supercharging by opening and closing an air intake path communicated with the internal combustion engine (50A). The ECU (1A) comprises a pulse-supercharging-failure determination unit for determining whether there is a failure relating to pulse supercharging based on combustion conditions of each cylinder of the engine (50A). Also, the ECU (1A) has means for deciding, depending on conditions of the failure relating to pulse supercharging, conditions for causing a vehicle to perform evacuation travel.
Description
Technical field
The present invention relates to a kind of failure judgment device and safety installations of internal-combustion engine system, particularly relate to a kind of failure judgment device and safety installations with internal-combustion engine system of pulse pressure-charging unit.
Background technique
Than suction valve more by in the gas-entered passageway of upstream side, thereby have connections, covering this gas-entered passageway, to implement the internal-combustion engine of the pulse pressure-charging unit of pulse pressure-charging be known to the public.When carrying out air inlet in intake stroke, if this pulse pressure-charging unit covers gas-entered passageway in the mode of complete closed, then suction valve closes that the negative pressure of firing chamber also increases after the valve.And under the state that negative pressure has increased, when the pulse pressure-charging unit was opened gas-entered passageway fully, the induction air flow ratio that then flows into the firing chamber raise.And, because therefore air inlet this moment can obtain a kind of inertia supercharging effect for flowing at a heat in the firing chamber.Pulse pressure-charging is undertaken by being communicated with, covering gas-entered passageway by this way, and for example compares with the supercharging of using exhaust gas drive type pressure-increasing machine and have the good characteristics of responsiveness.About this pulse pressure-charging, the formation example of a kind of pulse pressure-charging unit is for example disclosed in patent documentation 1.In addition, in patent documentation 2, proposed a kind of Intaker controller of internal-combustion engine, it is constituting component with the throttle valve, according to the load of internal-combustion engine and the valve of opening of (being equivalent to the pulse pressure-charging unit) of the aperture of throttle valve and air intake control valve is controlled opportunity.
Patent documentation 1: TOHKEMY 2000-248946 communique
Patent documentation 2: TOHKEMY 2005-61285 communique
The problem that invention will solve
But, owing to pulse pressure-charging is carried out in the above described manner, so the problem shown in when the fault in the pulse pressure-charging takes place, can occurring hereinafter.For example, if thereby the pulse pressure-charging unit close fully when being in the state that covers runner owing to no longer in cylinder, supply with air inlet, thereby can cause that air inlet is not enough can't burn.In this state, not only cause the vibration of internal-combustion engine to strengthen owing to the combustion regime between cylinder becomes uneven, therefore toxic emission also worsens.In addition, in this state,, cause the excessive step on the accelerator of driver's needs because internal-combustion torque also will descend, and owing in the cylinder that has only had fuel to be injected into to catch fire, thereby the oil consumption rate deterioration caused.
Fault in this pulse pressure-charging, be because when for example the movable part of pulse pressure-charging unit fixing or the broken string bad connection etc. that is used for the actuator of driving pulse compress cell take place former thereby scatteredly, because abnormal combustion can take place to restart burning under the state of excessive fuel, under worst case, might cause internal-combustion engine to damage.In addition,, and only reached under the state that covers to a certain extent, promptly allowed to avoid catching fire, but also can't avoid the imbalance of the combustion regime that between cylinder, takes place if the pulse pressure-charging unit does not cover runner in the mode of closing fully.Similarly, in the work of pulse pressure-charging unit, taken place smooth or block to wait and move under the condition of poor, the imbalance of combustion regime also can take place between cylinder.Therefore, under the situation that these faults have taken place, also might occur except the vibration of internal-combustion engine increases, also cause discharging and the deterioration of oil consumption rate.In addition, in Figure 18, the faults analysis table of having concluded in the above-mentioned pulse pressure-charging is illustrated.
And, taken place under the situation of the fault in the pulse pressure-charging in contingency, not only need to avoid or suppress the influence that this fault causes, consider in worst case to be the remarkable impaired great situation of driving safety of vehicle under the internal-combustion engine situation about occur damaging etc., also should guarantee suitable method so that the driver can keep out of the way vehicle the place of safety at least, perhaps if the fault that vehicle still can travel voluntarily then should make vehicle can drive to engineering repair works safely voluntarily.But,, yet do not find the technology of this fault of reply though the influence of the fault in this pulse pressure-charging might cause the more serious state of affairs to take place.
Summary of the invention
Therefore, the present invention considers above-mentioned problem and implements, its purpose is, a kind of failure judgment device of internal-combustion engine system and the safety installations of internal-combustion engine system are provided, fault and the fault state of this fault and the degree of fault in pulse pressure-charging and this fault of this failure judgment device in can the paired pulses supercharging judge, this safety installations can be kept out of the way vehicle by rights according to the fault state of pulse pressure-charging unit and degree and travel.
Solve the method for problem
For solving above-mentioned problem, the failure judgment device of internal-combustion engine system of the present invention is that the fault in internal-combustion engine system in the paired pulses supercharging judges that described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, thereby its suction valve that is communicated with, covers than this internal-combustion engine more carries out pulse pressure-charging by the gas-entered passageway of upstream side, the failure judgment device of described internal-combustion engine system is characterised in that, it has pulse pressure-charging fault judgement unit, is used for judging that according to the combustion regime of described each cylinder of internal-combustion engine pulse pressure-charging has fault-free.Therefore at this, under the situation that the fault in the pulse pressure-charging has taken place,, compare different with the combustion regime of other cylinders corresponding to the combustion regime of the cylinder of the pulse pressure-charging unit that fault has taken place owing to pulse pressure-charging can't be carried out by way of expectations.By being conceived to the present invention of described phenomenon, can judge the fault that has or not in the pulse pressure-charging.
In addition, according to the present invention, described pulse pressure-charging fault judgement unit also can be by being controlled as the running state of implementing pulse pressure-charging in described pulse pressure-charging unit, be not controlled as the running state of implementing pulse pressure-charging with described pulse pressure-charging unit, combustion regime between cylinder is judged, thereby whether identification is the fault in the pulse pressure-charging.At this, unusual situation takes place as the combustion regime between cylinder, not only have because of the situation that fault causes has taken place in the pulse pressure-charging, also might be situation about for example causing because of the fault in spraying such as the fuel of Fuelinjection nozzle fault etc.Be directed to this, whether by the present invention, can discern is fault in the pulse pressure-charging.
In addition, according to the present invention, can also have the fault state judging unit, be used for existing under the situation of fault in the pulse pressure-charging of described pulse pressure-charging fault judgement unit judges, the fault state of fault is judged in the paired pulses supercharging.
In addition, according to the present invention, also can detect the combustion regime of described each cylinder of internal-combustion engine with firing pressure by utilizing the burning pressure sensor.In addition, for detecting combustion regime, particularly, preferably detect with firing pressure with for example utilization burning pressure sensor of the present invention.
In addition, the safety installations of internal-combustion engine system of the present invention is to be used for having taken place the vehicle with described internal-combustion engine system is kept out of the way travelled under the situation of the fault in the pulse pressure-charging at internal-combustion engine system, described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, it is communicated with, covers the gas-entered passageway that more leans on upstream side than the suction valve of this internal-combustion engine, thereby enforcement pulse pressure-charging, the safety installations of described internal-combustion engine system is characterised in that, has the driving conditions of keeping out of the way decision unit, it is according to the fault state of fault in the described pulse pressure-charging, and decision makes described vehicle keep out of the way the condition of travelling.
According to the present invention, for the fault that does not for example reach the internal-combustion engine damaged condition, condition (following only being called kept out of the way driving conditions) as vehicle being kept out of the way travel makes the driver can learn the generation of described fault by lighting beacon, travels thereby vehicle is kept out of the way.In addition, light beacon by this way, can urge the driver and accept maintenance, accept maintenance if minor failure also can drive to engineering repair works voluntarily as far back as engineering repair works.And, as keeping out of the way driving conditions, inform to the driver to be not limited in the method for fault and to light beacon, can also adopt other suitable methods, for example utilize sound to notify or utilize the display unit of so-called navigation system to notify etc.
In addition, according to the present invention, under the fault state of the pulse pressure-charging unit that breaks down situation for state that runner is covered in the mode of complete closed, by in keeping out of the way driving conditions, further comprising, for example limit total amount to the fuel injection amount of internal-combustion engine, or stop to spray to fuel corresponding to the cylinder of the pulse pressure-charging unit that fault has taken place, thereby can suppress because the influence of fault causes the generation of the state of affairs of internal-combustion engine damage, and, can also make vehicle keep out of the way the place of travelling to safety.That is,, can make vehicle carry out suitable keeping out of the way according to fault state and travel by this way according to the present invention.
For this point, the present invention is preferred, the fault state of fault is under the situation of closing fault in described pulse pressure-charging, the described driving conditions decision unit of keeping out of the way sprays the fuel that the pairing cylinder in pulse pressure-charging unit of closing fault has taken place in the described pulse pressure-charging unit and forbids and to the total amount restriction of the fuel injection amount of described internal-combustion engine, determine to make described vehicle keep out of the way the condition of travelling for being used to.
In addition, the failure judgment device of internal-combustion engine system of the present invention is that the fault in internal-combustion engine system in the paired pulses supercharging judges that described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, its connection, cover the gas-entered passageway that more leans on upstream side than the suction valve of this internal-combustion engine, thereby enforcement pulse pressure-charging, the failure judgment device of described internal-combustion engine system is characterised in that, it has pulse pressure-charging fault judgement unit, the checkout value that detects in the specified states by the described internal-combustion engine system that will change in work according to described pulse pressure-charging unit, with compare corresponding to the predicted value according to the status predication of described internal-combustion engine system under this checkout value and the non-existent situation of the fault in pulse pressure-charging, thereby the fault in the paired pulses supercharging is judged.
At this, in pulse pressure-charging, taken place under the situation of fault, because pulse pressure-charging can't carry out by way of expectations, thereby variation will appear in the specified states of the internal-combustion engine system that changes in the work according to the pulse pressure-charging unit.Therefore, we can say that the checkout value that detects and the fault in the pulse pressure-charging have dependency relation in described specified states.Therefore, compare, then can judge the fault that has or not in the pulse pressure-charging as the predicted value that will predict under this checkout value and the non-existent situation of fault in pulse pressure-charging.The present invention is conceived to described problem points and carries out, and according to the present invention, the fault in can the paired pulses supercharging is judged.In addition, according to the present invention, by make method that beacon lights etc. based on judged result, can be with the generation driver of the fault in the pulse pressure-charging unit.
In addition, according to the present invention, particularly for example, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit can be the state of described pulse pressure-charging unit, and described checkout value also can be the needed time of action that described pulse pressure-charging unit is communicated with gas-entered passageway.And, consider the character of checkout value in this case, preferably, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby the operating lag the when gas-entered passageway in the described pulse pressure-charging unit is communicated with is judged.And, the action that does not freely cause of pulse pressure-charging unit for example is bad to be taken place owing to this operating lag particularly is based on, so according to the present invention, particularly can be so that the bad mode that is included in the operating lag of the action that does not freely cause of pulse pressure-charging unit is judged.
In addition, the present invention is preferred, also has the fault degree judging unit, is used for going out described pulse pressure-charging unit in described pulse pressure-charging fault judgement unit judges and has taken place under the situation of operating lag the degree of this operating lag to be judged.Thus, can use different failure safe control etc. according to the degree of operating lag.
In addition, the safety installations of internal-combustion engine system of the present invention is, used jointly by failure judgment device with the described internal-combustion engine system of claim 10, the safety installations of described internal-combustion engine system is characterised in that, also has the control action correcting unit, be used for degree at described fault degree judgment unit judges operating lag and be under the slight situation, the control action of pulse pressure-charging unit in this judgement is carried out revisal.
At this, the degree of operating lag is that slight situation is meant, though operating lag occurred, its degree is carried out revisal for the control action by the paired pulses compress cell, can guarantee the situation of delay of the degree of required air quantity.About this point, occurred in the pulse pressure-charging unit under the situation of operating lag, prohibition of fuel injection or fuel limitation emitted dose when being slight as its degree, internal-combustion torque will descend, for desire was kept out of the way vehicle the driver who travels, its result on the contrary can be even worse.But under this state, it is uneven that the combustion regime between cylinder becomes, and its result causes the vibration of internal-combustion engine and the deterioration of toxic emission.
Be directed to this, according to the present invention, the control action by the paired pulses compress cell carries out revisal so that required air quantity can be guaranteed, thereby can suppress the vibration of internal-combustion engine and the deterioration of toxic emission.In addition, according to the present invention, thereby when making the driver notice that the generation of fault is kept out of the way vehicle to travel by lighting of beacon etc., can avoid occurring even worse result's situation.And " common use " described in the claim also comprises the situation that the safety installations of the failure judgment device of internal-combustion engine system and internal-combustion engine system is for example realized with identical control gear.
In addition, the safety installations of internal-combustion engine system of the present invention is, used jointly by failure judgment device with the described internal-combustion engine system of claim 10, the safety installations of described internal-combustion engine system is characterised in that, also has the fuel injection amount limiting unit, be used in the degree of described fault degree judgment unit judges operating lag under the slight situation, limit at least to emitted dose corresponding to the fuel that cylinder sprayed of the pulse pressure-charging unit in this judgement.According to the present invention, even under the degree of operating lag is not slight situation, thereby can reduce the uneven degree of combustion regime between cylinder by the fuel limitation emitted dose, and can continue thus to suppress the vibration of internal-combustion engine and the deterioration of toxic emission, travel thereby can implement keeping out of the way of vehicle.
And the present invention can also have the control action correcting unit, is used in the degree of fault degree judgment unit judges operating lag under the slight situation, and the control action of the pulse pressure-charging unit in this judgement is carried out revisal.According to the present invention,, can guarantee corresponding air quantity by pulse pressure-charging although can not obtain required air quantity by control action is carried out revisal.Therefore, according to the present invention, owing to can relax the limited degree of fuel injection amount, thereby can guarantee the output of internal-combustion engine largely, thereby being travelled, can implement keeping out of the way of vehicle in more suitable mode.
In addition, according to the present invention, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit also can for, more lean on the state of the gas-entered passageway in downstream side than described pulse pressure-charging unit, pairing pressure when described checkout value also can be communicated with gas-entered passageway for, described pulse pressure-charging unit.And, consider the character of checkout value in this case, preferably, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby airtight bad when the gas-entered passageway in the described pulse pressure-charging unit covered judged.And, owing to this airtight bad particularly be to take place because for example snap in to the deposit of pulse pressure-charging unit bonding or foreign matter, therefore according to the present invention, particularly can be included in airtight mode in bad and judge snapping in to the deposit bonding of pulse pressure-charging unit or foreign matter.
In addition, the present invention is preferred, also has the fault degree judging unit, is used for existing under the airtight condition of poor in the described pulse pressure-charging of described pulse pressure-charging fault judgement unit judges unit, and this airtight bad degree is judged.Thus, can use different failure safe control etc. according to airtight bad degree.
In addition, the safety installations of internal-combustion engine system of the present invention is, used jointly by failure judgment device with the described internal-combustion engine system of claim 15, the safety installations of described internal-combustion engine system is characterised in that, also have: the unit is forbidden in pulse pressure-charging control, being used in the airtight bad degree of described fault judgement unit judges is not under the slight situation, to forbid implementing to be used for implementing in the pulse pressure-charging unit of this judgement the control of pulse pressure-charging; The fuel injection amount limiting unit is used in the degree of described fault judgement unit judges operating lag under the slight situation, limits at least to the fuel injection amount that cylinder sprayed corresponding to the pulse pressure-charging unit of this judgement.
At this, airtight bad degree is that slight situation is meant, though exist airtight badly, its degree is for guaranteeing the condition of poor of the degree of required air quantity by pulse pressure-charging.About this point, according to the present invention, under airtight bad degree is not slight situation, by inhibit pulse pressurization control and fuel limitation emitted dose, can reduce the uneven degree of combustion regime between cylinder, thereby in the deterioration of vibration that suppresses internal-combustion engine and toxic emission, implement keeping out of the way of vehicle and travel.In addition, according to the present invention, owing under airtight bad degree is slight situation, do not implement special control, thereby in slight airtight bad pulse pressure-charging unit has taken place, can continue to implement pulse pressure-charging.Therefore, according to the present invention, because of lighting of beacon etc. notices that driver that fault takes place keeping out of the way when travelling, can avoid taking place even worse result.
And preferred, pulse pressure-charging control forbids that the unit not only forbids being used to implement the control of pulse pressure-charging in the pulse pressure-charging unit of this judgement, and the pulse pressure-charging unit of this judgement controlled makes it be communicated with gas-entered passageway.Thus, make the pulse pressure-charging unit of this judgement can not become the obstacle of air inlet, thereby can guarantee more air quantity.And, owing to can relax the limited degree of fuel injection amount in this case, therefore the output of internal-combustion engine can be guaranteed for bigger, thereby being travelled, can more suitable mode carry out keeping out of the way of vehicle.
In addition, according to the present invention, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit also can for, the running state of the described internal-combustion engine when in corresponding to cylinder, burning as the described pulse pressure-charging unit of judging object, described checkout value also can be, the moment of torsion correlation that the moment of torsion that is produced when burning has dependency relation in corresponding to the cylinder as the described pulse pressure-charging unit of judging object.And, consider the character of checkout value in this case, preferably, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby judges whether closing fault (whether the pulse pressure-charging unit is in the state that has covered gas-entered passageway) takes place in the described pulse pressure-charging unit.
In addition, the safety installations of internal-combustion engine system of the present invention is, used jointly by failure judgment device with the described internal-combustion engine system of claim 18, it is characterized in that, also have: fuel sprays forbids the unit, be used for having occurred under the situation of closing fault, forbid spraying to fuel corresponding to the cylinder of the described pulse pressure-charging unit in this judgement in the described pulse pressure-charging of described pulse pressure-charging fault judgement unit judges unit; The fuel injection amount limiting unit is used to limit the total amount to the fuel injection amount of internal-combustion engine.According to the present invention, under the situation that closing fault occurred, by forbidding in the above described manner and the fuel limitation emitted dose, thereby can suppress because the influence of fault causes the generation of the state of affairs that internal-combustion engine damages, and, can also make vehicle keep out of the way the place of travelling to safety.
The effect of invention
According to the present invention, a kind of failure judgment device of internal-combustion engine system and the safety installations of internal-combustion engine system can be provided, fault and the fault state of this fault and fault in paired pulses supercharging and the degree of this fault of this failure judgment device in can the paired pulses supercharging judge, this safety installations can be kept out of the way vehicle by rights according to the fault state of fault in the pulse pressure-charging unit and degree and travel.
Description of drawings
The ideograph of Fig. 1 for ECU1A and internal-combustion engine system 100A are represented simultaneously.
Fig. 2 is the flow chart that is illustrated in processing performed among the ECU1A.
Fig. 3 is the flow chart of unusual recognition function between the expression cylinder.
Fig. 4 inflates the flow chart of unusual respective function for indicating impulse.
Fig. 5 is the flow chart of processing performed among the ECU1A of situation of pulse gas charging valve 15A broken string corresponding to fault state for expression.
The figure of an example that changes is pressed in the burning that Fig. 6 changes according to crank angle for expression.
The ideograph that aperture when Fig. 7 is indicating impulse gas charging valve 15B work changes.
Fig. 8 is the ideograph that the aperture of the pulse gas charging valve 15B after the expression revisal changes.
Fig. 9 uses the ideograph of the diagram data in zone for the indicating impulse inflation.
Figure 10 is the flow chart that is illustrated in processing performed among the ECU1B.
Figure 11 is defined as the flow chart of the bad detection function of pulse inflation action of subroutine for expression.
Figure 12 is defined as the flow chart of the pulse inflation action of subroutine respective function when bad for expression.
The ideograph that the variation of the air vent pressure when Figure 13 is indicating impulse gas charging valve 15C work and aperture change.
The variation of the air vent pressure when Figure 14 for expression the work of pulse gas charging valve 15C under the airtight condition of poor has taken place and the ideograph that aperture changes.
Figure 15 is the flow chart that is illustrated in processing performed among the ECU1C.
Figure 16 is defined as the flow chart of the bad detection function of pulse inflation action of subroutine for expression.
Figure 17 is defined as the flow chart of the pulse inflation action of subroutine respective function when bad for expression.
Figure 18 is the faults analysis table in the indicating impulse supercharging.
Embodiment
Below, describe being used to implement best mode of the present invention.
Fig. 1 is to be illustrated in ECU (Electronic Control Unit: the ideograph of the failure judgment device of the internal-combustion engine system of the present embodiment of being realized among the 1A and safety installations and internal-combustion engine system 100 electric control device).In the present embodiment promptly, the failure judgment device of internal-combustion engine system and safety installations are all realized in ECU1A.The formation of internal-combustion engine system 100 comprises: gas handling system 10, vent systems 20, pressurized machine 30, exhaust gas recirculation system 40, internal-combustion engine 50A.The formation of gas handling system 10 comprises: the suction tude of not shown air-strainer, Air flow meter 11, internal cooler 12, diesel oil throttle valve 13, the suction port that is communicated with each cylinder of internal-combustion engine 50A and inlet manifold 14, pulse gas charging valve 15A and suitable setting between these members etc.The formation of Air flow meter 11 comprises: air flow sensor 11a and atmosphere temperature transducer 11b, and when charge flow rate is carried out instrumentation, the signal output of the charge flow rate that will obtain corresponding to instrumentation.Internal cooler 12 is configured to be used to cool off the air inlet of compressing by pressurized machine 30.
Diesel oil throttle valve 13 is configured to be used to be adjusted at the total charge flow rate that is supplied to internal-combustion engine 50A under the control of ECU1A, and its formation comprises: throttle valve 13a, electric motor 13b and not shown throttle opening sensor etc.Inlet manifold is configured to be used for air inlet is assigned to each cylinder of internal-combustion engine 50A.In addition, the upstream side place of inlet manifold is connected with the connecting tube of formation exhaust gas recirculation described later system 40.Pulse gas charging valve 15A is configured in the gas-entered passageway corresponding to each cylinder of inlet manifold separately individually.Pulse gas charging valve 15A is configured to be used for be communicated with, cover gas-entered passageway, thereby implements pulse pressure-charging.The formation of pulse gas charging valve 15A comprises: valve body 15Aa and actuator 15Ab.
Valve body 15Aa is rotated freely via valve shaft and is arranged in the gas-entered passageway.Pulse gas charging valve 15A valve shaft separately is separate, is connected with actuator 15Ab on these valve shafts separately individually.This actuator 15Ab drives valve shaft under the control of ECU1A, control valve body 15Aa implements pulse pressure-charging thus.In the present embodiment, this actuator 15Ab has adopted stepper motor, but is not limited thereto, and other actuator that are fit to also can be used as actuator 15Ab and use.In addition, in the present embodiment, actuator 15Ab has not shown valve state detection sensor.This valve state detection sensor is used to detect valve body 15Aa covers runner in the mode of complete closed state.Realize the pulse pressure-charging unit with pulse gas charging valve 15A in the present embodiment.
The formation of vent systems 20 comprises: the outlet pipe that be communicated with the relief opening of internal-combustion engine 50 each cylinders and gas exhaust manifold 21, not shown catalyzer and silencing apparatus, suitably is provided with between these members etc.Gas exhaust manifold is configured to be used to make the exhaust interflow from each cylinder, its make corresponding to each cylinder and difference set is an exhaust passage in the downstream side in the exhaust passage.In addition, on outlet pipe, be connected with the connecting tube of formation exhaust gas recirculation described later system 40.
Variable-nozzle) 33, VN actuator 34 pressurized machine 30 is the variable displacement type turbosupercharger, and its formation comprises: compressor drum 31, turbine rotor 32, VN (Variable Nozzle:.In pressurized machine 30, accommodate the compressor section and the turbine portion of accommodating turbine rotor 32 of compressor drum 31, be configured in respectively in gas handling system 10 and the vent systems 20, and fall between.Compressor drum 31 is connected by rotating shaft 35 with turbine rotor 32, when turbine rotor 32 be deflated when driving, thereby compressor drum 31 is driven air inlet is compressed via rotating shaft 35.Pressurized machine 30 has VN33 in turbine portion.VN33 is used to change the turbine discharge capacity, and VN actuator 34 is used for driving VN33 under the control of ECU1A.
In the present embodiment, pressurized machine 30 realizes by the variable displacement type turbosupercharger, and being configured to of this variable displacement type turbosupercharger has a plurality of VN33 at the peripheral place of turbine rotor 32.In this variable displacement type turbosupercharger, the runner that is used for exhaust is imported to turbine rotor 32 is formed between each adjacent VN33, changes these runners area separately simultaneously by VN33, thereby changes the turbine discharge capacity.But the present invention is not limited to this, and pressurized machine 30 can also adopt the vortex ingress that for example is configured in turbine portion, has the variable displacement type turbosupercharger of the variable-nozzle that changes vortex entrance channel area.In addition, pressurized machine 30 can also adopt variable displacement type turbosupercharger turbosupercharger in addition.
The formation of exhaust gas recirculation system 40 comprises: EGR (Exhaust Gas Recirculation: exhaust gas recirculation) cooler 41, EGR valve 42 and suitably be arranged on connecting tube between these members etc.Cooler for recycled exhaust gas 41 is used to cool off the exhaust that is deflated backflow.EGR valve 42 is used to carry out exhaust gas recirculation, under the control of ECU1A runner is communicated with, covers.The formation of internal-combustion engine 50A comprises: cylinder block 51, not shown cylinder head, piston 52, Fuelinjection nozzle 53, glow plug 54, burning pressure sensor 55, camshaft 56, connecting rod 57, bent axle 58, oil sump 59.Internal-combustion engine 50A shown in the present embodiment is the diesel engine of four-cylinder in upright arrangement.But the present invention is not limited to this, and internal-combustion engine 50A can implement internal-combustion engine of the present invention to get final product, and is not particularly limited, and for example also can adopt other motors that are fit to such as petrol engine.In addition, internal-combustion engine 50A also can have other suitable cylinder array structure and cylinder number.Among this external Fig. 1, about internal-combustion engine 50A, though its major component is illustrated as the representative of each cylinder with cylinder 51a, and in the present embodiment, other cylinder also is identical construction.
In cylinder block 51, be formed with cylinder 51a roughly cylindraceous.In cylinder 51a inside, contain piston 52.Upper surface place in cylinder block 51 is fixed with cylinder head.Firing chamber (omitting diagram) is formed the space that is surrounded by cylinder block 51, cylinder head and piston 52.Be used for air inlet is imported to the suction port of firing chamber except that being formed with on the cylinder head, also be formed with the relief opening that the gas that is used for having burnt is discharged from the firing chamber, and be provided with not shown suction valve and the outlet valve of the runner that is used to open, close these import/exhaust mouths.In addition, internal-combustion engine 50A also can adopt the import/exhaust valve constitution of the intake/exhaust valve that has suitable quantity on each cylinder.
Fuelinjection nozzle 53 is set on the cylinder head with the state of giving prominence to spray-hole from the top substantial middle of firing chamber in the firing chamber.Fuelinjection nozzle 53 is configured to be used for burner oil, under the control of ECU1A, opens valve and burner oil opportunity in suitable fuel injection.In addition, fuel injection amount is regulated by the opening valve time length in during before Fuelinjection nozzle 53 closes valve under the control of ECU1A.In addition, the injection of fuel is pressed by not shown fuel-injection pump and is regulated, and fuel-injection pump will spray to press under the control of ECU1A and be adjusted to suitable injection pressure.When glow plug 54 is configured in internal-combustion engine 50A startup heated in the firing chamber, thus the autogenous ignition of raising fuel.Burning pressure sensor 55 is configured to be used for detect burning and presses (below be also referred to as cylinder pressure), and it detects the burning that produces and presses in burning.Camshaft 56 has not shown cam, and the rotation of itself and bent axle 58 synchronously is rotated.Along with the rotation of camshaft 56, cam suitably opens and closes intake/exhaust valve.In addition, 56 places are provided with at camshaft, have the not shown detection member of the dop 56a that cylinder identification sensor 60 is used to detect.In ECU1A,, cylinder is discerned, and the top dead center of each cylinder is carried out identification according to the output signal of the CKP 61 of this cylinder identification sensor 60 and generation and the proportional output pulse of revolution NE.In addition, about omitting illustrated pore mechanism, only need to use a member that is fit to get final product.
The formation of ECU1A comprises: not shown CPU (Central Processing Unit: central processing unit (CPU)), ROM (Read Only Memory: ROM (read-only memory)), RAM (RandomAccess Memory: random access memory), imput output circuit etc.It mainly is to be used for controlling combustion engine 50A that ECU1A is configured to, and in the present embodiment, it also controls electric motor 13b, actuator 15Ab, VN actuator 34 and EGR valve 42 etc. except control Fuelinjection nozzle 53, glow plug 54 and fuel-injection pump.On ECU1A,, also be connected with various controlling object by drive circuit (omitting diagram) except above-mentioned these configurations.In addition, on ECU1A, be connected with various sensors such as throttle opening sensor, valve state detection sensor, air flow sensor 11a, atmosphere temperature transducer 11b, burning pressure sensor 55, cylinder identification sensor 60, CKP 61, cooling-water temperature sensor 62.But, suitable omission has been carried out in these connections for cooperating diagram.
ROM is configured to be used to be stored with the program of the performed various processing of CPU, in the present embodiment, control the program of usefulness except storing internal-combustion engine 50 among the ROM, this program is made of with program etc. the Fuelinjection nozzle control of the discharge time, emitted dose and the jet pressure that are used to control the fuel that sprays from Fuelinjection nozzle 53, also store: program is used in 15 controls of pulse gas charging valve, is used to implement pulse pressure-charging; Pulse pressure-charging fault judgement program is used for judging the fault that has or not pulse pressure-charging according to the combustion regime of each cylinder of internal-combustion engine 50A; Program is used in the fault state judgement, is used for judging with program under the out of order situation of pulse pressure-charging by the pulse pressure-charging fault judgement, and the fault state of fault is judged in the paired pulses supercharging; Fuel injection amount restriction program described later; Fuel sprays and stops to use program; Keep out of the way driving conditions decision with program etc.But, also these program groups can be integrated.
The pulse pressure-charging fault judgement is designed to program, particularly, by combustion regime according to each cylinder of internal-combustion engine 50A, control impuls gas charging valve 15A implement pulse pressure-charging running state (below, be also referred to as pulse inflation and use the zone) and not control impuls gas charging valve 15A implement between the running state (below, the pulse inflation uses the zone outer) of pulse pressure-charging, combustion regime between cylinder is judged, thereby whether the fault in the identification pulse supercharging exists.In the present embodiment, the combustion regime of each cylinder of internal-combustion engine 50A is pressed with burning by burning pressure sensor 55 and is detected, by judge burning be pressed with no abnormal (below, it is unusual to be also referred to as cylinder) thus the combustion regime between the judgement cylinder.
Fault state judge with program particularly its formation comprise: whether be, the program of the state that the pulse gas charging valve 15A that is judged as fault covers runner in the mode of complete closed if being used for the failure judgement state; And the program that is used for detecting the broken string of pulse gas charging valve 15A.But the present invention is not limited to this, and it can also comprise in constituting, and for example is used for the runner shield coverage of the pulse gas charging valve 15A that is judged as fault and is judged as pulse gas charging valve 15A smooth of fault or the program of judging such as blocks.In this case, preferably these are programmed to, for example press unusual generation frequency to wait the infer fault state according to size that is judged as unusual burning pressure and burning.And, pulse gas charging valve 15A from its when implementing pulse pressure-charging with this constructional character of high-speed driving valve body 15Aa standard-sized sheet, full cut-off as can be known, under normal user mode, do not need to detect aperture usually.Be directed to this, for example,, can also detect the valve state detection sensor of runner shield coverage, can judge the runner shield coverage of the pulse gas charging valve 15A that is judged as fault according to this signal of sensor by having not only for full-shut position.
Fuel injection amount restriction with program is, is used to limit the program to the total amount of the fuel injection amount of internal-combustion engine 50A.In addition, fuel sprays that to stop be to be used to stop to the program corresponding to the fuel injection of the cylinder of the pulse gas charging valve 15A that is judged as fault with program.In addition, these programs also can constitute the part of the program of Fuelinjection nozzle control usefulness.Keeping out of the way the driving conditions decision with program is, according to the fault state of judging fault in the pulse pressure-charging of judging with program by fault state, and the program that driving conditions is kept out of the way in decision.In the present embodiment, keeping out of the way driving conditions is set in the following manner.
At first, under the situation of nonserviceabling, have as keeping out of the way driving conditions for closing fault: light as the diagnosis of beacon hold concurrently motor detect lamp, restriction to the total amount of the fuel injection amount of internal-combustion engine 50A, stop to spray to the fuel of the pairing cylinder of pulse gas charging valve 15A that is judged as fault.In addition, under the situation of nonserviceabling, have: light as the diagnosis of the beacon motor of holding concurrently and detect lamp, and restriction is to the total amount of the fuel injection amount of internal-combustion engine 50A as keeping out of the way driving conditions for pulse gas charging valve 15A interrupt line.In addition, nonserviceable, hold concurrently motor detection lamp as keeping out of the way driving conditions to light as the diagnosis of beacon under the situation outside above-mentioned.In addition, the classification of fault state and the driving conditions of keeping out of the way of classifying corresponding to fault state are not limited in this, the form that also can adopt other to be fit to.In the present embodiment, it is the control program that utilizes CPU, ROM, RAM (the following CPU etc. that only is called) and internal-combustion engine 50, realize various detection units, judging unit and control unit, particularly, utilize CPU etc. to realize pulse pressure-charging fault judgement unit with program with the pulse pressure-charging fault judgement; Utilize CPU etc. to judge and realize the fault state judging unit with program with fault state; Utilize CPU etc. and keep out of the way the driving conditions decision and realize keeping out of the way driving conditions decision unit with program.
Next, utilize flow chart shown in Figure 2, in the fault state that has that it's too late to the fault in judging pulse pressure-charging, when vehicle being kept out of the way travel according to the fault state of being judged, processing performed in ECU1A is described in detail.Thereby ECU1A, by the processing shown in the CPU flowchart can judge the fault in the pulse pressure-charging and according to fault state vehicle be kept out of the way and travel according to being stored in above-mentioned pulse pressure-charging fault judgement among the ROM with program etc.And in the present embodiment, the processing shown in this flow chart is often carried out in internal-combustion engine 50A starts repeatedly, but is not limited in this, also can carry out the processing shown in this flow chart for for example according to the rules condition.
CPU compresses into the processing (step Sa11) that capable peak value keeps, detects and store according to the output voltage of burning pressure sensor 55 to the burning of each cylinder.In this step, the peak value that the burning that produces in a burn cycle is pressed is detected by cylinder ground.The figure of an example that changes is pressed in the burning that Fig. 6 changes according to crank angle for expression.In the example depicted in fig. 6, the burning voltage crest value that is detected in this step is about about 6000kpa.And the peak value of the pressure of burning does not need to be converted into pressure unit and detects, only needs get final product as big or small detection of the output voltage of the burning pressure sensor 55 of index by the pressure of will burning.Therefore, in the example depicted in fig. 6, the peak value that burning is pressed is as 6V voltage and detected and preserve.In addition, preferred, the burning voltage crest value of each cylinder can be stored one more than the burn cycle at least.
Next, CPU carries out and judges whether fuel injection amount is the processing of fixing (step Sa12).In this step, when each cylinder all burns, judge, thus, can compare between each cylinder, judge that to whether being in the state that burning is pressed judges whether fuel injection amount is constant.If be judged as negatively in step Sa12, then CPU is before step Sa12 obtains affirmative determination, with the processing shown in execution in step Sa11 and the Sa12 repeatedly.On the other hand, if be judged as in step Sa12 certainly, then CPU carries out the relatively processing (step Sa13) of each cylinder combustion pressure.Then, CPU carries out judgement and has or not cylinder abnormity processing (step Sa14) according to the comparison process result of step Sa13.Particularly, press under the situation about equating in the burning of each cylinder, being judged as does not have cylinder unusual.On the other hand, 15A breaks down at the pulse gas charging valve, and with under the situation of having covered runner largely, because it is not enough and catch fire to produce air inlet in the cylinder corresponding to the pulse gas charging valve 15A that breaks down, so the burning of this cylinder is pressed to press with the burning of other cylinders and is compared significantly reduction.Therefore, in this step, press under the unequal situation in burning, then further will burn press with other cylinders relatively, when the burning that a cylinder is only arranged is pressed when very low, the very low cylinder of the pressure of then will burning is judged as that cylinder has taken place is unusual.If be judged as negatively in step Sa14, then the processing shown in this flow chart finishes.On the other hand, if be judged as in step Sa14 certainly, then CPU carries out unusual discriminant function (step Sa15) between the cylinder that is defined as subroutine.
Fig. 3 represents to be defined as the flow chart of unusual recognition function between the cylinder of subroutine.CPU carries out the processing (step Sa21) that judges whether to use into the pulse inflation judgement in zone.Particularly, the pulse inflation that will define according to the running state (being revolution NE and load in the present embodiment) of internal-combustion engine 50A uses the diagram data (Map data) in zone to be stored among the ROM, CPU passes through with reference to this diagram data, thereby judges whether to be that the zone is used in the pulse inflation.And, in this diagram data of present embodiment, use the zone to be set at slow speed, high capacity operation area the pulse inflation.If in step Sa21, be judged as negative, then CPU carries out the abnormity processing (step Sa24) in identification and the injection of judgement fuel, and carries out and will represent that fuel in spraying the processing (step Sa25) that unusual fuel injection abnormal marking is made as unlatching (ON) takes place.
And, since in the present embodiment, owing in internal-combustion engine 50A starts, often carry out flow chart shown in Figure 2, therefore, before the zone is used in the pulse inflation that enters slow speed, high capacity operation area, at first outside pulse inflation use zone, carry out the cylinder shown in the step Sa14 and judge unusually.Thus, in the present embodiment, can use zone and pulse inflation to use outside the zone in the pulse inflation combustion regime is judged, therefore, by the judgment processing shown in the execution in step Sa21, can discern and judge that whether the unusual reason of cylinder is the fault in the pulse pressure-charging.In addition, owing to can also detect fuel unusual in spraying in the present embodiment, therefore, whether the phenomenon in the time of also can being conceived to take place fuel unusual in spraying is for example further pressed with other cylinders the burning of certain cylinder to compare in step Sa14, thereby is pressed higher relatively to burning, or integral body is not higher than certain threshold value and judges, its result is, is judged as under the sure situation in any one is judged, unusual recognition function between the cylinder shown in also can execution in step Sa51.
On the other hand, if be judged as in step Sa21 certainly, then discern and be judged as in the pulse pressure-charging and break down, CPU will further carry out and judge whether pulse gas charging valve 15A is in the processing (step Sa22) of full-shut position.Whether pulse gas charging valve 15A is in full-shut position can be judged according to the output signal of valve state detection sensor.If be judged as in step Sa22 certainly, then CPU carries out the processing (step Sa23) that the pulse inflation closing flag that will represent closing fault is made as unlatching.After step Sa23, or be judged as in step Sa22 under the negative situation, CPU carries out the pulse that is defined as subroutine and inflates unusual respective function (step Sa26).
Fig. 4 inflates the flow chart of unusual respective function for the pulse that expression is defined as subroutine.CPU carries out the fault factor is write SRAM (Static Random Access Memory: processing static memory) (step Sa31).Particularly, in this step, can write for example wrong content and error code.In addition, only otherwise cutting off battery supply SRAM can keep storage, ECU1A also has this SRAM in the present embodiment.Next, CPU carries out the diagnosis will be arranged on the not shown instrument panel motor of holding concurrently and detects the processing (step Sa32) that lamp is lighted.Thus, the driver is learnt fault has taken place, and can make engineering repair works etc. locate to confirm failure cause.Next, CPU carries out and judges whether pulse inflation closing flag is the processing (step Sa33) of opening.Fixed if the judgment is No, then the failure judgement state is not the catastrophe failure state that might cause internal-combustion engine 50A to damage, and CPU does not light the special processing that detects outside the lamp, inflates unusual respective function and finish pulse.
On the other hand, if be judged as in step Sa33 certainly, then CPU carries out the processing of restriction corresponding to the sensor output of accelerator pedal aperture, in other words, carries out the processing (step Sa34) of restriction to the total amount of the fuel injection amount of internal-combustion engine 50A.And then CPU carries out and to stop the processing (step Sa35) of spraying from the fuel corresponding to the Fuelinjection nozzle 53 of the cylinder that is judged as fault.Total amount by fuel limitation emitted dose in step Sa34 and step Sa35 also stops fuel and sprays, thereby the worst-case that abnormal combustion will cause internal-combustion engine 50A to damage takes place can avoid occurring recovering from fault the time.After the processing shown in the execution of step Sa35, finish pulse and inflate unusual respective function.Thus, unusual recognition function also finishes to carry out between cylinder shown in Figure 3, and then flow chart shown in Figure 2 also finishes to carry out.
At above-mentioned Fig. 2 to the flow chart shown in Figure 4, to the unusual reason of cylinder is fault in the Fuelinjection nozzle 53, whether still the fault in the pulse pressure-charging is judged, and then is under the situation of the fault in the pulse pressure-charging in reason, be that closing fault is judged to fault state.On the other hand, fault state more specifically is divided into the bonding of the movable parts such as broken string, valve body 15Aa or valve shaft among the pulse gas charging valve 15A etc.For example, have at internal-combustion engine 100 and to make LPL (the LowPressure Loop: low pressure recycle) under the situation of egr system etc. that carries out exhaust cycle from the compressor section inlet side of exhaust gas recirculation system 40 or pressurized machine 30, because HC (unburned fuel) and PM (particulate matter) be attached on the movable part, thereby the bonding etc. of movable part takes place especially easily.Be directed to this, when the closing fault that the movable part bonding causes has taken place, utilize the processing shown in the flow chart of above-mentioned Fig. 2 to Fig. 4 can judge fault and fault state, and vehicle kept out of the way travel.On the other hand, nonserviceable under the situation about breaking, the processing that can also carry out shown in following flow chart outside the processing shown in the flow chart of Fig. 2 to Fig. 4 is tackled.Fig. 5 is the flow chart of processing performed among the ECU1A of situation of pulse gas charging valve 15A interrupt line corresponding to fault state for expression.
CPU detects the broken string among the pulse gas charging valve 15A, promptly carries out to judge whether the processing (step Sa41) that occurs breaking.Particularly, by carrying out the processing that paired pulses gas charging valve 15A for example passes to the electric current that burn out detection uses, and connect affirmation, thereby can judge whether to occur broken string.If in step Sa41, be judged as negative, the then processing shown in the CPU process ends figure.On the other hand, if step Sa41 is judged as certainly, then CPU carries out and will diagnose the motor of holding concurrently to detect the processing (step Sa42) that lamp is lighted.Thus, can inform the generation of driver's fault.Next, CPU carries out the processing (step Sa43) of the total amount of fuel limitation emitted dose.In this step, by the total amount of fuel limitation emitted dose, can realize for example only not implementing the operation area operation of combustion engine 50A of pulse pressure-charging.Thus, vehicle is kept out of the way travelled, and can suppress to discharge and the deterioration of oil consumption rate.After having carried out the processing shown in the step Sa43, the processing shown in the CPU process ends figure.
And about fault state, except closing fault, following state also is used as a kind of form of fault state, for example: idle state under the to a certain degree coconnected state of pulse gas charging valve 15A; By smooth or block and the action of the pulse gas charging valve 15A that causes is bad etc.About these fault states, in the present embodiment, as comparing the less fault of negative effect of vehicle safety, and in step Sa33, roughly differentiated with closing fault with closing fault.That is, in the present embodiment, under these fault states, detect lamp to urge the driver safeguards early, do not implement other special processing except lighting.But be not limited in this,, also can adopt for example same mode, the total amount of fuel injection amount is limited with flow chart shown in Figure 5 judging when being in these fault states.Thus, vehicle is kept out of the way travelled, and can suppress to discharge and the deterioration of oil consumption rate.By with upper type, can realize a kind of ECU1A, it can judge the fault in the pulse pressure-charging and the fault state of this fault, and can be according to the fault state of fault in the pulse pressure-charging and vehicle is kept out of the way travel.
Internal-combustion engine system 100B in the present embodiment is except having the internal-combustion engine 50B that replaces internal-combustion engine 50A and the ECU1B that replaces ECU1A, it is identical in fact with internal-combustion engine system 100A.Internal-combustion engine 50B is except being replaced the pulse gas charging valve 15A by pulse gas charging valve 15B, and it is identical in fact with internal-combustion engine 50A among the embodiment 1.In addition, pulse gas charging valve 15B can not detect full-shut position and can detect the valve state detection sensor of gas-entered passageway shield coverage except having, and it is identical in fact with pulse gas charging valve 15A.This valve state detection sensor is connected on the ECU1B.In addition, omitted diagram to above-mentioned these internal-combustion engine systems 100B, internal-combustion engine 50B, ECU1B and pulse gas charging valve 15B.
ECU1B is used to replace the pulse pressure-charging fault judgement described in the embodiment 1 to judge with program with program, fault state and keep out of the way the driving conditions decision and limit with program and the detection that is associated with these programs with program, fuel injection amount with program, control action revisal with program, fault degree judgement with program, predictor calculation with the following pulse pressure-charging fault judgement of program and use the program except ROM stores, it is identical in fact with ECU1A among the embodiment 1.In addition, in the ROM of ECU1A, can further store above-mentioned these programs.Next will describe the ROM program stored, the aperture variation when at first working with reference to Fig. 7 paired pulses gas charging valve 15B is described in detail.
Fig. 7 is the ideograph that the aperture of indicating impulse gas charging valve 15B changes.In Fig. 7, change and represent aperture owing to the pulse gas charging valve 15B of the action that does not freely cause when bad has taken place with solid line, simultaneously, for the ease of relatively, the aperture of the pulse gas charging valve 15B during with the fault in the pulsing supercharging not changes and dots.
DT_CONVENTIONAL_OPEN is the target aperture time of advent, and it is illustrated under the situation of the fault in the not pulsing supercharging, and pulse gas charging valve 15B is communicated with the needed time of action of gas-entered passageway.Target aperture based on fuel time of advent emitted dose and revolution and preestablished and be stored in the target aperture diagram data time of advent among the ROM.
DT_real_open_pulse is the realistic objective aperture time of advent, and its indicating impulse gas charging valve 15B is communicated with the actual used time of action of gas-entered passageway.About this point, owing in pulse gas charging valve 15B, taken place because when the action that freely causes is bad, the time lengthening till the arrival target aperture, thereby as shown in the figure, the result makes the realistic objective aperture also prolong the time of advent than the target aperture time of advent.This realistic objective aperture detects according to the output of valve state detection sensor by ECU1B the time of advent.
The opening valve time of pulse gas charging valve 15B when dT_OPEN_PULSE represents fault in the not pulsing supercharging.With respect to this, dT_open_pulse is the actual opening valve time of pulse gas charging valve 15B, when having taken place in pulse gas charging valve 15B owing to the action that does not freely cause when bad, the actual opening valve time (dT_open_pulse) of pulse gas charging valve 15B is shorter than dT_OPEN_PULSE.
On basis above, below institute's program stored among the ROM is elaborated.Pulse pressure-charging fault judgement in the present embodiment is designed to program, the specified states of the internal-combustion engine system 100B that will change for the work according to pulse gas charging valve 15B detects the checkout value that obtains, the predicted value that predicts according to the state of internal-combustion engine system 100B with corresponding to this checkout value and the fault in pulsing supercharging not the time compares, thereby the fault in the paired pulses supercharging is judged.
About this point, use in the program in this pulse pressure-charging fault judgement of present embodiment, the specified states of the internal-combustion engine 100B that changes according to the work of pulse gas charging valve 15B is, the state of pulse gas charging valve 15B during work, checkout value is the realistic objective aperture time of advent (dT_real_open_pulse) in addition.
Predictor calculation is designed to program, by from the target aperture diagram data time of advent, the state of internal-combustion engine system 100B when working according to pulse gas charging valve 15B is obtained and realistic objective aperture corresponding target aperture time of advent time of advent, thereby predicted value is predicted.That is, in the present embodiment, target aperture time of advent is a predicted value.This predictor calculation is designed to program, at first when working, pulse gas charging valve 15B obtains fuel injection amount and revolution NE, and, from the target aperture diagram data time of advent, obtain target aperture time of advent according to obtained fuel injection amount and revolution NE.The state of internal-combustion engine system 100B when working according to pulse gas charging valve 15B thus, is predicted the acquisition predicted value.
On the other hand, the pulse pressure-charging fault judgement is designed to program, and the operating lag when gas-entered passageway is communicated with among the paired pulses gas charging valve 15B is judged.About this point, for operating lag is judged, the pulse pressure-charging fault judgement is designed to program, particularly, by judge realistic objective aperture time of advent whether greater than the target aperture time of advent (dT_CONVENTIONAL_OPEN) and permissible error (dT_CONTROL) and, thereby to comparing the time of advent realistic objective aperture time of advent and target aperture, and judge whether to have operating lag thus.In addition, permissible error be considered the realistic objective aperture time of advent error and by predefined.
The fault degree judgement is designed to program, judging with program under the situation with operating lag according to the pulse pressure-charging fault judgement, the degree of this operating lag is judged.About this point, in order to judge the degree of operating lag, the fault degree judgement is designed to program, particularly, by deduct target aperture time of advent the time of advent from the realistic objective aperture, thereby calculate the pulse gas charging valve and append the operating time (pulse_add_need_time), simultaneously the pulse gas charging valve that calculates is appended the operating time and whether judge less than the 1st specified value (ADD_NEED_TIME_LIMIT).
When the pulse gas charging valve appends the operating time during less than the 1st specified value, the degree of then judging operating lag is for slight; And append the operating time during when the pulse gas charging valve greater than the 1st specified value, the degree of then judging operating lag is for slight.
The control action revisal is designed to program, and when judging that according to fault degree the degree of judging operating lag with program is slight, then the control action to the pulse gas charging valve 15B in this judgement carries out revisal.About this point, for the control action of paired pulses gas charging valve 15B carries out revisal, the control action revisal is designed to program, particularly, by adding that on actual opening valve time (dT_open_pulse) the pulse gas charging valve appends the operating time (pulse_add_need_time), thereby actual opening valve time is carried out revisal and renewal.Thus, actual opening valve time (dT_open_pulse) is by revisal and be updated to opening valve time (dT_OPEN_PULSE) and equate, its result is, the control action of pulse gas charging valve 15B is that the pulse gas charging valve that just in time postpones to be appended appends the amount of operating time and gas-entered passageway is covered by revisal.Fig. 8 is the reference model figure that the aperture of the pulse gas charging valve 15B after the expression revisal changes.
In addition, though by driving valve and also can carry out revisal and renewal in advance opportunity with pulse gas charging valve 15B to real opening valve time, but in above-mentioned this mode actual opening valve time is carried out revisal and renewal, can avoid before the pulse gas charging valve 15B work front and back pressure reduction of pulse gas charging valve 15B being diminished.That is, thereby actual opening valve time is carried out revisal and renewal, then can avoid occurring the situation that the effect of pulse pressure-charging diminishes by postponing the valve opportunity of closing that makes pulse gas charging valve 15B.
On the other hand, the control action revisal is designed to program, is judging the degree of judging operating lag with program according to fault degree when slight, and also the control action to the pulse gas charging valve 15B in this judgement carries out revisal.At this moment, the control action revisal is designed to program, particularly, by adding the 1st specified value (ADD_NEED_TIME_LIMIT) on actual opening valve time (dT_open_pulse), thereby actual opening valve time is carried out revisal and renewal.Thus, actual opening valve time (dT_open_pulse) is by revisal and be updated to and approach opening valve time (dT_OPEN_PULSE), and, the control action of pulse gas charging valve 15B by revisal is, just in time postpones the amount of the 1st specified value (ADD_NEED_TIME_LIMIT) that appended and gas-entered passageway is covered.By this way actual opening valve time is carried out revisal, owing to can guarantee corresponding air quantity by pulse pressure-charging, thereby can relax the limited degree of fuel injection amount, its result is to guarantee the output of bigger internal-combustion engine.
Fuel injection amount restriction is designed to program, is judging the degree of judging operating lag with program according to fault degree when slight, then limits to the emitted dose corresponding to the fuel of the cylinder injection of the pulse gas charging valve 15B in this judgement.In addition, the restriction of this fuel injection amount is designed to program, also limits to the emitted dose corresponding to the fuel of the cylinder injection outside the cylinder of the pulse gas charging valve 15B in this judgement.Thus, can suppress the deterioration of toxic emission and the change of moment of torsion.
In the present embodiment, realize various control units, judging unit, detection unit and computing unit etc. by CPU etc. and the program that is stored among the ROM, particularly, utilize CPU etc. to realize pulse pressure-charging fault judgement unit with program with the pulse pressure-charging fault judgement; Utilize CPU etc. to judge and realize the fault degree judging unit with program with fault degree; Utilize CPU etc. to realize the control action correcting unit with program with the control action revisal; Restriction realizes the fuel injection amount limiting unit with program with fuel injection amount to utilize CPU etc.In addition, in the present embodiment, utilize ECU1B to realize the failure judgment device and the safety installations of internal-combustion engine system simultaneously.
Next, with reference to flow chart shown in Figure 10 processing performed among the ECU1B is elaborated.ECU1B is according to being stored in above-mentioned pulse pressure-charging fault judgement among the ROM with program etc., by by the processing shown in the CPU flowchart, operating lag and degree thereof when gas-entered passageway is communicated with among the paired pulses gas charging valve 15B are judged, and, the vehicle with internal-combustion engine system 100B is suitably kept out of the way travelled by the fuel limitation emitted dose.And present embodiment is constituted as, condition that can be according to the rules and the processing shown in the flowchart, but be not limited in this, for example also the processing shown in this flow chart in starting, often can be carried out internal-combustion engine 50B repeatedly.In addition, because in the processing shown in this flow chart, known technology etc. is arranged, the processing of the program execution of not expressing especially in the record based on preamble is also arranged, but the processing shown in this flow chart is carried out by CPU based on being stored in the program among the ROM all.
CPU carries out and judges whether to use the processing (step Sb11) in zone into the pulse inflation.The pulse inflation uses the zone to be, use in the administrative division map data (with reference to Fig. 9) according to the pulse inflation that the running state (being revolution NE and fuel injection amount in the present embodiment) of internal-combustion engine 50 is preestablished and is stored among the ROM, CPU in this step, thereby by judging whether with reference to this diagram data to be that the pulse inflation uses the zone.If in step Sb11, be judged as negative, then since do not need to implement special handle thus process ends figure shown in processing.
On the other hand, if be judged as in step Sb11 certainly, then CPU carries out the bad detection function of action (step Sb12) that is defined as subroutine.Figure 11 is defined as the flow chart of the bad detection function of pulse inflation action of subroutine for expression.CPU closes (OFF) by the not smooth mark (Flag_pulse_rough) of pulse gas charging valve is made as, thereby carries out the initialized processing of mark (step Sb21).Then, when CPU obtains fuel injection amount and revolution NE, carry out the processing (step Sb22) that from the target aperture diagram data time of advent, obtains the target aperture time of advent (dT_CONVENTIONAL_OPEN).And then CPU carries out the processing (step Sb23) that detects the realistic objective aperture time of advent (dT_real_open_pulse) according to the output of valve state detection sensor.
Next, CPU carries out the relatively processing (step Sb24) of the realistic objective aperture time of advent and the target aperture time of advent.In this step, CPU particularly carries out and judges that whether the realistic objective aperture time of advent (dT_real_open_pulse) is greater than the target aperture time of advent and permissible error (formula: the dT_CONVENTIONAL_OPEN+dT_CONTROL) processing of sum.That is, in the comparison of the realistic objective aperture time of advent and target aperture time of advent, also comprised the comparison of considering error and carrying out.If in step Sb24, be judged as certainly, then judge the operating lag when the gas-entered passageway connection has taken place among the pulse gas charging valve 15B.At this moment, CPU is made as unlatching (ON) with the not smooth mark (Flag_pulse_rough) of pulse gas charging valve, and carries out the processing (step Sb25) of lighting the detection lamp that is set on the Vehicular instrument panel, then, and the processing shown in the process ends figure.Thus, can take place by the driver unusual condition.
On the other hand, if negative being judged as of step Sb24, then judge the operating lag when gas-entered passageway does not take place to be communicated with in pulse gas charging valve 15B, CPU is with regard to the processing shown in this process ends figure.By moving the end of bad detection function, CPU restarts the processing shown in the flow chart of Figure 10.CPU carries out and judges whether the not smooth mark (Flag_pulse_rough) of pulse gas charging valve is the processing (step Sb13) of opening.Fixed if the judgment is No, then since do not need to handle especially thus process ends shown in processing.On the other hand, if be judged as certainly, then CPU carries out the pulse inflation action that is defined as subroutine respective function (step Sb14) when bad.
Figure 12 is defined as the flow chart of the pulse inflation action of subroutine respective function when bad for expression.CPU carries out by deducting the target aperture time of advent (dT_CONVENTIONAL_OPEN) from the realistic objective aperture time of advent (dT_real_open_pulse), thereby calculates the processing (step Sb31) that the pulse gas charging valve appends the operating time (pulse_add_need_time).Next, CPU carries out and to judge that the pulse gas charging valve appends the whether processing (step Sb32) in control range of operating time.Judging that the pulse gas charging valve appends the operating time whether in control range the time, particularly CPU carries out and judges that the pulse gas charging valve appends the operating time (pulse_add_need_time) whether less than the processing (step Sb32) of the 1st specified value (ADD_NEED_TIME_LIMIT).If be judged as certainly, the degree of then judging operating lag is for slight.At this moment, CPU is by adding that the pulse gas charging valve appends the operating time (pulse_add_need_time) in the opening valve time (dT_open_pulse) of reality, thereby carries out the processing (step Sb33) of the opening valve time (dT_open_pulse) of reality being carried out revisal and renewal.
Thus, the control action of pulse gas charging valve 15B is that the pulse gas charging valve that just in time postpones to be appended appends the amount of operating time and gas-entered passageway is covered by revisal.In addition thus, because the air quantity between cylinder is equated, thereby can suppress the vibration of internal-combustion engine and the deterioration of toxic emission.In addition, because under the degree of operating lag was slight situation, fuel injection amount did not need to limit especially, thereby internal-combustion torque can not reduce yet.Therefore, noticing that detecting driver that lamp lights keeps out of the way vehicle when travelling, and can avoid occurring even worse consequence.After the processing shown in the execution of step Sb33, the processing shown in the CPU process ends figure.
On the other hand, when in step Sb32, being judged as when negating, the degree of then judging operating lag is not for slight, at this moment, CPU carries out by adding the 1st specified value (ADD_NEED_TIME_LIMIT) on actual opening valve time (dT_open_pulse), thereby actual opening valve time (dT_open_pulse) is carried out the processing (step Sb34) of revisal and renewal.Thus, the control action of pulse gas charging valve 15B by revisal is, just in time postpones the amount of the 1st specified value that appended and gas-entered passageway is covered.In addition thus, owing to can guarantee corresponding air quantity, thereby the limited degree of fuel injection amount can be relaxed, thereby even under the degree of operating lag is not slight situation, also bigger internal-combustion torque can be guaranteed by pulse pressure-charging.
Next, CPU carries out the processing (step Sb35) that calculates amount of charge air (eqafm_egnpulse) according to the actual opening valve time (dT_open_pulse) that has upgraded and supercharging (eqa_epim).This amount of charge air (eqafm_egnpulse) is, according to actual opening valve time (dT_open_pulse) and supercharging (eqa_epim) and preestablished and be stored in the amount of charge air diagram data among the ROM.And, thereby CPU carries out the processing (step Sb36) according to the amount of charge air theoretical air-fuel ratio maximum injection quantity (eqafm_eqafm) that calculates.This air fuel ratio maximum injection quantity (eqafm_eqafm) is to be preestablished and be stored in according to supercharging air supply amount (eqafm_egnpulse) in the air fuel ratio maximum injection quantity diagram data among the ROM.Thus, fuel injection amount is restricted to suitable amount.
Therefore, even under the degree of operating lag is slight situation, when suppressing the deterioration of the vibration of internal-combustion engine and toxic emission, and can carries out keeping out of the way of vehicle and travel.Thereafter, the end of respective function when bad by pulse inflation action, flow chart shown in Figure 10 also finishes.By above method, can realize a kind of ECU1B, it can judge the fault in the pulse pressure-charging and the degree of this fault, and can be according to the fault state of fault in the pulse pressure-charging and degree and vehicle is kept out of the way travel.
Internal-combustion engine system 100C in the present embodiment replaces internal-combustion engine 50A except having internal-combustion engine 50C, and replaces outside the ECU1A with ECU1C, and it is identical in fact with internal-combustion engine system 100A.Internal-combustion engine 50C is used to detect than pulse gas charging valve 15A more the pressure transducer by the pressure of the suction port in downstream side except also having, and it is identical in fact with internal-combustion engine 50A among the embodiment 1.This pressure transducer is connected on the ECU1C.In addition, internal-combustion engine 50C also can have pulse gas charging valve 15B, in order to replace pulse gas charging valve 15A.In addition, omitted diagram to above-mentioned these internal-combustion engine systems 100C, internal-combustion engine 50C, ECU1C and pressure transducer.In addition, in the present embodiment, for convenience of explanation, below pulse gas charging valve 15A is called pulse gas charging valve 15C.
ECU1C except ROM store the pulse pressure-charging fault judgement described in the embodiment 1 with program, be used to replace fault state to judge with program and keep out of the way the driving conditions decision and control to forbid limiting with program and the detection that is associated with these programs with program, pulse pressure-charging with program, fault degree judgement with program, predictor calculation with the following pulse pressure-charging fault judgement of program and use the member of program with program, fuel injection amount, it is identical in fact with ECU1A among the embodiment 1.In addition, in the ROM of ECU1A or ECU1B, also can further store above-mentioned these programs.Next will describe program stored among the ROM, the air vent pressure variation when at first working with reference to Figure 13 paired pulses gas charging valve 15C is described in detail.
The ideograph that the variation of the air vent pressure when Figure 13 is indicating impulse gas charging valve 15C work and aperture change.Air vent pressure is the suction press that more leans on the air inlet valve position in downstream side in gas-entered passageway than pulse gas charging valve 15C.In the present embodiment, this air vent pressure is detected by pressure transducer and ECU1C.Average inlet manifold pressure is the mean value that more leans on the suction press in the inlet manifold of upstream side in gas-entered passageway than pulse gas charging valve 15C.When pulse gas charging valve 15C covers gas-entered passageway, along with the increase air vent pressure of crank angle will reduce gradually.Then, when pulse gas charging valve 15C is communicated with gas-entered passageway with the crank angle of stipulating, air vent pressure will rise.And then during pulse gas charging valve 15C drove valve, air vent pressure surpassed after the average inlet manifold pressure, will be reduced to the degree that equates with average inlet manifold pressure.
In the variation of the air vent pressure when described pulse gas charging valve 15C works, minP_real_pulse is minimum suction press, in the present embodiment, and pairing pressure when minimum suction press is pulse gas charging valve 15C connection gas-entered passageway.
MaxP_real_pulse is the full admission pipe pressure, particularly, in the suction press when it is illustrated in pulse gas charging valve 15C work, maximum suction press.
DT_real_pulse_open is the full admission pipe pressure time of advent, and particularly, its expression air vent pressure arrives the full admission needed time of pipe pressure from minimum suction press.The full admission pipe pressure is obtained according to the output detection of pressure transducer by ECU1C the time of advent.
But, be directed to this, when in pulse gas charging valve 15C, taken place owing to snapping in of the bonding of deposit and foreign matter etc. cause airtight bad the time, the air vent pressure during pulse gas charging valve 15C work will change in mode shown in Figure 14.Figure 14 has taken place under the airtight condition of poor for expression, the ideograph that the variation of the air vent pressure during pulse gas charging valve 15C work and aperture change.In Figure 14, with having taken place, airtight air vent pressure when bad represents, and in order to compare with solid line, with taking place, airtight air vent pressure with dashed lines when bad do not represent.In addition, in Figure 14, as a reference, the variation of the suction air quantity when pulse gas charging valve 15C is worked also illustrates simultaneously.
When in pulse gas charging valve 15C, having taken place because during the snapping in of the bonding of deposit and foreign matter, because pulse gas charging valve 15C can't close fully, thereby the aperture of pulse gas charging valve 15C when gas-entered passageway is covered will become greatly to a certain extent, thereby produce the gap.In this case because air inlet will circulate by the gap, therefore with solid line represent airtight bad the time air vent pressure will be greater than desired air vent pressure.Its result is, taking place under the airtight condition of poor, and the front and back pressure reduction of pulse gas charging valve 15C reduces.Therefore, when pulse gas charging valve 15C worked, airtight air vent pressure when bad will be less than the air vent pressure of expection, and airtight suction air quantity when bad will be less than the suction air quantity of expection.That is pulse pressure-charging effect, will diminish.
On basis above, next program stored among the ROM is elaborated.Pulse pressure-charging fault judgement in the present embodiment is designed to program, the checkout value that the specified states of the internal-combustion engine system 100C that will change in the work according to pulse gas charging valve 15C detects, the predicted value that predicts according to the state of internal-combustion engine system 100B with corresponding to this checkout value and the fault in pulsing supercharging not the time compares, thereby the fault in the paired pulses supercharging is judged.About this point, use in the program in this pulse pressure-charging fault judgement of present embodiment, the specified states of the internal-combustion engine 100C that changes according to the work of pulse gas charging valve 15C is, more by the state of the suction valve in downstream side, checkout value is minimum suction press (minP_real_pulse) in addition than pulse gas charging valve 15C.
Predictor calculation is designed to program, by from common minimum suction press diagram data, obtain the internal-combustion engine system 100C when working according to pulse gas charging valve 15C state and with the corresponding common minimum suction press of minimum suction press (P_CONVENTIONAL_PULSE), thereby predicted value is predicted.That is, in the present embodiment, common minimum suction press is a predicted value.Common minimum suction press based on fuel emitted dose and revolution NE and preestablished and be stored in the common minimum suction press diagram data among the ROM.Therefore, particularly, this predictor calculation is designed to program, at first when working, pulse gas charging valve 15C obtains fuel injection amount and revolution NE, and, from common minimum suction press diagram data, obtain common minimum suction press according to obtained fuel injection amount and revolution NE.The state of internal-combustion engine system 100C when working according to pulse gas charging valve 15C thus, is predicted the acquisition predicted value.
On the other hand, the pulse pressure-charging fault judgement is designed to program, and airtight bad when gas-entered passageway covers among the paired pulses gas charging valve 15C judged.About this point, in order badly to judge to airtight, the pulse pressure-charging fault judgement is designed to program, particularly, by judging that whether minimum suction press (minP_real_pulse) is greater than common minimum suction press (P_CONVENTIONAL_PULSE), thereby minimum suction press and common minimum suction press are compared, and judge whether to exist airtight bad thus.
Fault degree judges and to be designed to program, exists under the airtight condition of poor judging with program according to the pulse pressure-charging fault judgement, and this airtight bad degree is judged.About this point, in order to judge airtight bad degree, the fault degree judgement is designed to program, particularly, calculate the deduction air quantity (Ga_cylinder) that draws by the inertia supercharging effect, and judge and infer that whether air quantity is greater than the 2nd specified value (NEED_GA_LIMIT).Infer that air quantity is for being preestablished and be stored in according to suction press poor (dP_real_pulse) and the full admission pipe pressure time of advent (dT_real_pulse_open) in the deduction air quantity diagram data among the ROM.
Therefore, the fault degree judgement is designed to program, when calculating the deduction air quantity, more specifically calculates the deduction air quantity time of advent from infer the air quantity diagram data according to suction press difference and full admission pipe pressure.
When inferring air quantity, judge that then airtight bad degree is for slight less than the 2nd specified value; And when inferring air quantity, judge that then airtight bad degree is not for slight greater than the 2nd specified value.
Pulse pressure-charging control is forbidden being designed to program, judges airtight bad degree when slight when judging according to fault degree with program, then forbids being used for the control of enforcement pulse pressure-charging in the pulse gas charging valve 15C of this judgements.In addition, pulse pressure-charging control is forbidden being designed to program, and the pulse gas charging valve 15C that can also control in this judgement makes it be communicated with gas-entered passageway.Thus, make the pulse gas charging valve 15C in this judgement can not become the obstacle of air inlet, thereby can guarantee more air quantity.In addition, when judging that according to fault degree to judge airtight bad degree be slight with program, then do not need to implement special control, its result is among the pulse gas charging valve 15C in this is judged, also to continue to implement pulse pressure-charging thereafter.This is because can obtain needed air quantity being judged as under the slight situation.
Fuel injection amount restriction is designed to program, judges airtight bad degree when slight judging according to fault degree with program, then limits to the emitted dose corresponding to the fuel of the cylinder injection of the pulse gas charging valve 15C in this judgement.In addition, this fuel injection amount restriction is designed to program, also limits to the fuel injection amount corresponding to the cylinder injection outside the cylinder of the pulse gas charging valve 15C in this judgement.Thus, can suppress the deterioration of toxic emission and the change of moment of torsion.
In the present embodiment, realize various control units, judging unit, detection unit and computing unit etc. by CPU etc. and the program that is stored among the ROM, particularly, utilize CPU etc. to realize pulse pressure-charging fault judgement unit with program with the pulse pressure-charging fault judgement; Utilize CPU etc. to judge and realize the fault degree judging unit with program with fault degree; Utilize CPU etc. and pulse pressure-charging control to forbid realizing that with program pulse pressure-charging control forbids the unit; Restriction realizes the fuel injection amount limiting unit with program with fuel injection amount to utilize CPU etc.In addition, in the present embodiment, utilize ECU1C to realize the failure judgment device and the safety installations of internal-combustion engine system simultaneously.
Next, with reference to flow chart shown in Figure 15 processing performed among the ECU1C is elaborated.ECU1C is according to being stored in above-mentioned pulse pressure-charging fault judgement among the ROM with program etc., by by the processing shown in the CPU flowchart, thereby the airtight bad and degree among the paired pulses gas charging valve 15C judges, and can by implement pulse pressure-charging control forbid and the restriction of fuel injection amount is kept out of the way the vehicle with internal-combustion engine system 100C to travel by rights.And present embodiment is constituted as, condition that can be according to the rules and the processing shown in the flowchart, but be not limited in this, for example also the processing shown in this flow chart in starting, often can be carried out internal-combustion engine 50C repeatedly.In addition, because comprise the processing of carrying out because of its program of not expressing especially for known technology in the record of preamble in the processing shown in this flow chart, but the processing shown in this flow chart is all carried out by CPU based on being stored in the program among the ROM.
CPU carries out and judges whether to use the processing (step Sc11) in zone into the pulse inflation.In this step, CPU particularly uses regional diagram data by inflating with reference to pulse as shown in Figure 8, thereby judges whether to use regional into the pulse inflation.If in step Sc11, be judged as negative, then since do not need to implement special handle thus process ends figure shown in processing.On the other hand, if be judged as in step Sc11 certainly, then CPU carries out the bad detection function of action (step Sc12) that is defined as subroutine.
Figure 16 is defined as the flow chart of the bad detection function of action of subroutine for expression.CPU closes (OFF) by the airtight bad mark of pulse gas charging valve (Flag_pulse_open) is made as, thereby carries out the initialized processing of mark (step Sc21).Then, CPU carries out the processing (step Sc22) that obtains common minimum suction press (P_CONVENTIONAL_pULSE) from common minimum suction press diagram data when obtaining fuel injection amount and revolution NE.And then CPU carries out the processing (step Sc23) that detects minimum suction press (minP_real_pulse) under the crank angle of regulation according to the output of pressure transducer.
Next, CPU carries out the processing (step Sc24) of more minimum suction press and common minimum suction press.In this step, CPU particularly carries out and to judge that minimum suction press (minP_real_pulse) is whether greater than the processing of common minimum suction press (P_CONVENTIONAL_PULSE).If be judged as in step Sc24 certainly, then judgement has taken place airtight bad.At this moment, CPU is made as unlatching (ON) with the airtight bad mark of pulse gas charging valve (Flag_pulse_open), and carries out the processing (step Sc25) that is used to light the detection lamp that is set on the Vehicular instrument panel, then, and the processing shown in the process ends figure.Thus, generation that can the driver unusual condition.
On the other hand, if negative, judge then and in pulse gas charging valve 15C, do not take place airtight badly that CPU is with regard to the processing shown in this process ends figure being judged as of step Sc24.By moving the end of bad detection function, CPU restarts the processing shown in the flow chart of Figure 15.CPU carries out and judges whether the airtight bad mark of pulse gas charging valve (Flag_pulse_open) is the processing (step Sc13) of opening.Fixed if the judgment is No, then since do not need to handle especially thus process ends shown in processing.On the other hand, if be judged as certainly, then CPU carries out the pulse inflation action that is defined as subroutine respective function (step Sc14) when bad.
Figure 17 is defined as the flow chart of the pulse inflation action of subroutine respective function when bad for expression.The CPU execution obtains the processing (step Sc31) of minimum suction press (minP_real_pulse), full admission pipe pressure (maxP_real_pulse) and the full admission pipe pressure time of advent (dT_realpulse_open).Next, CPU carries out by deduct the processing (step Sc32) that minimum suction press calculates suction press poor (dP_real_pulse) from the full admission pipe pressure.
And then CPU carries out the processing (step Sc33) that calculates deduction air quantity (Ga_cylinder) from infer the air quantity diagram data according to suction press poor (dP_real_pulse) and the full admission pipe pressure time of advent (dT_real_pulse_open).Then, CPU carry out to judge infers the whether processing (step Sc34) in control range of air quantity.When judge inferring that air quantity is whether in control range, CPU is to judge to infer that whether air quantity (Ga_cylinder) is greater than the 2nd specified value (NEED_GA_LIMIT) particularly.
If be judged as certainly, judge that then airtight bad degree is for slight.At this moment, owing to can obtain needed air quantity, thereby CPU can not implement special processing, and the processing shown in the process ends figure.Thus, even in pulse gas charging valve 15C, taken place airtight badly, but under its degree is slight situation, also can continue thereafter in pulse gas charging valve 15C, to implement pulse pressure-charging.Therefore, notice that detecting driver that lamp lights keeps out of the way vehicle when travelling, and can avoid occurring even worse consequence.
On the other hand, if in step Sc34, be judged as negative, judge that then airtight bad degree is not for slight, at this moment, CPU forbids being used for implementing the control of pulse pressure-charging in the pulse gas charging valve 15C of this judgement, and the pulse gas charging valve 15C that will carry out in will judging is controlled to be the processing (step Sc35) of opening fully.Thus, make and airtight bad pulse gas charging valve 15C has taken place can not become the obstacle that flow into the air inlet in the cylinder, and can the inhibit pulse pressurization control.Next, CPU carries out the processing (step Sc36) that calculates air quantity (eqafm_ega) according to the output of Air flow meter 11.And then CPU carries out the processing (step Sc37) that calculates air fuel ratio maximum injection quantity (eqafm_eqafm) according to air quantity (eqafm_ega).This air fuel ratio maximum injection quantity (eqafm_eqafm) is to be preestablished and be stored in according to air quantity (eqafm_ega) in the air fuel ratio maximum injection quantity diagram data among the ROM.
Thus, fuel injection amount is restricted to suitable amount.Therefore, even taken place airtight badly at pulse gas charging valve 15C, and this airtight undesirable level is not under the slight situation, in the deterioration of vibration that suppresses internal-combustion engine and toxic emission, can carry out keeping out of the way of vehicle yet and travel.Thereafter, the end of respective function when bad by pulse inflation action, flow chart shown in Figure 15 also finishes.By above method, can realize a kind of ECU1C, it can judge the fault in the pulse pressure-charging and the degree of this fault, and can be according to the fault state of fault in the pulse pressure-charging and degree and vehicle is kept out of the way travel.
Embodiment mentioned above is the preferred embodiment of the invention.But the present invention is not limited to this, in the scope that does not break away from main idea of the present invention, can carry out various variations and implement.For example, about the pulse pressure-charging fault judgement program that ECU1 stored, the specified states and the checkout value of the internal-combustion engine system 100 that changes according to the work of pulse gas charging valve 15 also can be other state and checkout values that are fit to.Particularly, for example, the specified states of the internal-combustion engine system 100 that changes according to the work of pulse gas charging valve 15 also can for, the running state of the internal-combustion engine 50 when in corresponding to cylinder, burning as the pulse gas charging valve 15 of judging object, the checkout value of this moment also can be, the moment of torsion correlation (for example cylinder pressure or angular velocity of crankshaft) that the moment of torsion that is produced when burning has dependency relation in corresponding to the cylinder as the pulse gas charging valve 15 of judging object.By comparing checkout value and predicted value, for example can judging, whether pulse gas charging valve 15 exists closing fault in this case.
In addition, in this case, when judging with program according to described pulse pressure-charging fault judgement when having closing fault in the pulse gas charging valve 15, also can will be used for forbidding that spraying the fuel injection amount of forbidding with program and being used for limiting to the total amount of the fuel injection amount of internal-combustion engine 50 to the fuel corresponding to the cylinder injection fuel of the pulse gas charging valve 15C of this judgement limits the ROM that further is stored in ECU1 with program.And, can utilize described pulse pressure-charging fault judgement to wait in this case and realize pulse pressure-charging fault judgement unit with program and CPU; Utilize described fuel to spray to forbid to wait and realize that the fuel injection forbids the unit with program and CPU; Utilize described fuel injection amount restriction to wait and realize the fuel injection amount limiting unit with program and CPU; And can utilize ECU1 to realize the failure judgment device and the safety installations of internal-combustion engine system.In addition, the failure judgment device of internal-combustion engine system and safety installations also can be realized respectively with independent ECU, or are realized respectively with a plurality of ECU.
Claims (19)
1, a kind of failure judgment device of internal-combustion engine system is used for the fault in internal-combustion engine system judgement pulse pressure-charging, and described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, it is communicated with, covers the gas-entered passageway that more leans on upstream side than the suction valve of this internal-combustion engine, thereby implements pulse pressure-charging,
The failure judgment device of described internal-combustion engine system is characterised in that to have pulse pressure-charging fault judgement unit, is used for judging the fault that has or not pulse pressure-charging according to the combustion regime of described each cylinder of internal-combustion engine.
2, the failure judgment device of internal-combustion engine system as claimed in claim 1, it is characterized in that, described pulse pressure-charging fault judgement unit is by being controlled as the running state of implementing pulse pressure-charging in described pulse pressure-charging unit, be not controlled as the running state of implementing pulse pressure-charging with described pulse pressure-charging unit, combustion regime between cylinder is judged, thereby whether identification is the fault in the pulse pressure-charging.
3, the failure judgment device of internal-combustion engine system as claimed in claim 1 or 2, it is characterized in that, also has the fault state judging unit, be used for haveing under the situation that there is fault in pulse pressure-charging in described pulse pressure-charging fault judgement unit judges, the fault state of fault is judged in the paired pulses supercharging.
4, as the failure judgment device of any described internal-combustion engine system in the claim 1 to 3, it is characterized in that, detect the combustion regime of described each cylinder of internal-combustion engine by utilizing the burning pressure sensor with firing pressure.
5, a kind of safety installations of internal-combustion engine system is used for having taken place the vehicle with described internal-combustion engine system is kept out of the way travelled under the situation of the fault in the pulse pressure-charging at internal-combustion engine system, and described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, it is communicated with, covers the gas-entered passageway that more leans on upstream side than the suction valve of this internal-combustion engine, thereby implements pulse pressure-charging,
The safety installations of described internal-combustion engine system is characterised in that to have the driving conditions of keeping out of the way decision unit, and its fault state according to fault in the described pulse pressure-charging determines to make described vehicle to keep out of the way the condition of travelling.
6, the safety installations of internal-combustion engine system as claimed in claim 5, it is characterized in that, the fault state of fault is under the situation of closing fault in described pulse pressure-charging, the cylinder injection fuel of pulse pressure-charging unit of closing fault and restriction will be forbidden having taken place to the total amount of the fuel injection amount of internal-combustion engine in the described driving conditions decision unit of keeping out of the way in corresponding to described pulse pressure-charging unit, determine to make described vehicle keep out of the way the condition of travelling for being used to.
7, a kind of failure judgment device of internal-combustion engine system, the fault that is used in the supercharging of internal-combustion engine system paired pulses judges that described internal-combustion engine system is constituted as, and has: internal-combustion engine; The pulse pressure-charging unit, it is communicated with, covers the gas-entered passageway that more leans on upstream side than the suction valve of this internal-combustion engine, thereby implements pulse pressure-charging,
The failure judgment device of described internal-combustion engine system is characterised in that, it has pulse pressure-charging fault judgement unit, the checkout value that detects in the specified states by the described internal-combustion engine system that will change in work according to described pulse pressure-charging unit, with compare corresponding to the predicted value according to the status predication of described internal-combustion engine system under this checkout value and the non-existent situation of the fault in pulse pressure-charging, thereby the fault in the paired pulses supercharging is judged.
8, the failure judgment device of internal-combustion engine system as claimed in claim 7, it is characterized in that, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit is the state of described pulse pressure-charging unit, and described checkout value is the needed time of action that described pulse pressure-charging unit is communicated with gas-entered passageway.
9, the failure judgment device of internal-combustion engine system as claimed in claim 8, it is characterized in that, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby the operating lag the when gas-entered passageway in the described pulse pressure-charging unit is communicated with is judged.
10, the failure judgment device of internal-combustion engine system as claimed in claim 9, it is characterized in that, also has the fault degree judging unit, be used for going out described pulse pressure-charging unit and have under the situation of operating lag, the degree of this operating lag is judged in described pulse pressure-charging fault judgement unit judges.
11, a kind of safety installations of internal-combustion engine system is used jointly by the failure judgment device with the described internal-combustion engine system of claim 10,
The safety installations of described internal-combustion engine system is characterised in that to have the control action correcting unit, is used for degree at described fault degree judgment unit judges operating lag and is under the slight situation, and the control action of the pulse pressure-charging unit in this judgement is carried out revisal.
12, a kind of safety installations of internal-combustion engine system is used jointly by the failure judgment device with the described internal-combustion engine system of claim 10,
The safety installations of described internal-combustion engine system is characterised in that, has the fuel injection amount limiting unit, be used in the degree of described fault degree judgment unit judges operating lag under the slight situation, limit at least to emitted dose corresponding to the fuel that cylinder sprayed of the pulse pressure-charging unit in this judgement.
13, the failure judgment device of internal-combustion engine system as claimed in claim 7, it is characterized in that, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit for than described pulse pressure-charging unit more by the state of the gas-entered passageway in downstream side, described checkout value is described pulse pressure-charging unit pairing pressure when being communicated with gas-entered passageway.
14, the failure judgment device of internal-combustion engine system as claimed in claim 13, it is characterized in that, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby airtight bad when the gas-entered passageway in the described pulse pressure-charging unit covered judged.
15, the failure judgment device of internal-combustion engine system as claimed in claim 14, it is characterized in that, also has the fault degree judging unit, be used for having occurred under the airtight condition of poor, this airtight bad degree is judged in the described pulse pressure-charging of described pulse pressure-charging fault judgement unit judges unit.
16, a kind of safety installations of internal-combustion engine system is used jointly by the failure judgment device with the described internal-combustion engine system of claim 15,
The safety installations of described internal-combustion engine system is characterised in that, also have: the unit is forbidden in pulse pressure-charging control, being used in the airtight bad degree of described fault judgement unit judges is not under the slight situation, forbids utilizing the control of the pulse pressure-charging unit enforcement pulse pressure-charging in this judgement; The fuel injection amount limiting unit is used for limiting at least to the fuel injection amount that cylinder sprayed corresponding to the pulse pressure-charging unit of this judgement.
17, the failure judgment device of internal-combustion engine system as claimed in claim 7, it is characterized in that, the specified states of the described internal-combustion engine system that changes according to the work of described pulse pressure-charging unit is the running state of the described internal-combustion engine when burning in corresponding to the cylinder as the described pulse pressure-charging unit of judging object; Described checkout value is, the moment of torsion correlation that the moment of torsion that is produced when burning in corresponding to the cylinder as the described pulse pressure-charging unit of judging object has dependency relation.
18, the failure judgment device of internal-combustion engine system as claimed in claim 17, it is characterized in that, described pulse pressure-charging fault judgement unit is by comparing described checkout value and described predicted value, thereby to whether having closing fault to judge in the described pulse pressure-charging unit.
19, a kind of safety installations of internal-combustion engine system is used jointly by the failure judgment device with the described internal-combustion engine system of claim 18,
The safety installations of described internal-combustion engine system is characterised in that, have: fuel sprays forbids the unit, be used for having under the situation of closing fault, forbid to cylinder injection fuel corresponding to the described pulse pressure-charging unit in this judgement in the described pulse pressure-charging of described pulse pressure-charging fault judgement unit judges unit; The fuel injection amount limiting unit is used to limit the total amount to the fuel injection amount of described internal-combustion engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP188819/2006 | 2006-07-10 | ||
| JP2006188819 | 2006-07-10 | ||
| PCT/JP2007/063864 WO2008007720A1 (en) | 2006-07-10 | 2007-07-05 | Failure determination device and safety device for internal combustion engine system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101490383A true CN101490383A (en) | 2009-07-22 |
| CN101490383B CN101490383B (en) | 2012-01-25 |
Family
ID=38923276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800260721A Expired - Fee Related CN101490383B (en) | 2006-07-10 | 2007-07-05 | Failure determination device and safety device for internal combustion engine system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4715923B2 (en) |
| CN (1) | CN101490383B (en) |
| DE (1) | DE112007001644T5 (en) |
| WO (1) | WO2008007720A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948328A (en) * | 2014-03-26 | 2015-09-30 | 通用汽车环球科技运作有限责任公司 | Estimation system and method with model predictive control |
| CN104948326A (en) * | 2014-03-26 | 2015-09-30 | 通用汽车环球科技运作有限责任公司 | Fault diagnostic systems and methods for model predictive control |
| CN109488473A (en) * | 2018-12-17 | 2019-03-19 | 中国船舶重工集团公司第七研究所 | The online anticipation system of engine and online pre-judging method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4868173B2 (en) * | 2008-02-07 | 2012-02-01 | 株式会社デンソー | Abnormality diagnosis device for internal combustion engine |
| JP5115507B2 (en) * | 2009-03-23 | 2013-01-09 | トヨタ自動車株式会社 | In-cylinder pressure sensor failure diagnosis device |
| DE102009020171A1 (en) * | 2009-05-07 | 2010-11-11 | Mahle International Gmbh | Internal combustion engine and associated operating method |
| JP6252786B2 (en) * | 2014-10-21 | 2017-12-27 | 三菱重工業株式会社 | Supercharger control device, control system, supercharger, control method and program |
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| JPH0317141U (en) * | 1989-06-27 | 1991-02-20 | ||
| JPH04330331A (en) * | 1991-05-01 | 1992-11-18 | Toyota Motor Corp | Multiple cylinder internal combustion engine |
| JPH0783101A (en) * | 1993-09-17 | 1995-03-28 | Nissan Motor Co Ltd | Trouble detecting device of internal combustion engine |
| JP3407479B2 (en) * | 1995-06-19 | 2003-05-19 | 日産自動車株式会社 | Diagnostic device for boost pressure sensor |
| DE19908435A1 (en) | 1999-02-26 | 2000-09-07 | Meta Motoren Energietech | Method and device for pulse charging a piston internal combustion engine |
| JP3948226B2 (en) * | 2001-06-14 | 2007-07-25 | 日産自動車株式会社 | Control device and control method for internal combustion engine |
| JP3706335B2 (en) * | 2001-12-12 | 2005-10-12 | 本田技研工業株式会社 | Internal combustion engine failure determination device |
| JP4330331B2 (en) * | 2002-12-20 | 2009-09-16 | 新報国製鉄株式会社 | Free-cutting corrosion-resistant steel for precision equipment |
| JP2005061285A (en) | 2003-08-11 | 2005-03-10 | Nissan Motor Co Ltd | Intake device of internal combustion engine |
| JP2005248825A (en) * | 2004-03-04 | 2005-09-15 | Denso Corp | Abnormality diagnostic device for internal combustion engine |
| JP2006112382A (en) * | 2004-10-18 | 2006-04-27 | Nissan Motor Co Ltd | Intake control device of engine |
| US7063057B1 (en) * | 2005-08-19 | 2006-06-20 | Delphi Technologies, Inc. | Method for effectively diagnosing the operational state of a variable valve lift device |
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2007
- 2007-07-05 WO PCT/JP2007/063864 patent/WO2008007720A1/en active Search and Examination
- 2007-07-05 DE DE112007001644T patent/DE112007001644T5/en not_active Ceased
- 2007-07-05 CN CN2007800260721A patent/CN101490383B/en not_active Expired - Fee Related
- 2007-07-05 JP JP2008524830A patent/JP4715923B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948328A (en) * | 2014-03-26 | 2015-09-30 | 通用汽车环球科技运作有限责任公司 | Estimation system and method with model predictive control |
| CN104948326A (en) * | 2014-03-26 | 2015-09-30 | 通用汽车环球科技运作有限责任公司 | Fault diagnostic systems and methods for model predictive control |
| CN104948326B (en) * | 2014-03-26 | 2018-04-24 | 通用汽车环球科技运作有限责任公司 | The fault diagnosis system and method for Model Predictive Control |
| CN109488473A (en) * | 2018-12-17 | 2019-03-19 | 中国船舶重工集团公司第七研究所 | The online anticipation system of engine and online pre-judging method |
| CN109488473B (en) * | 2018-12-17 | 2021-08-13 | 中国船舶重工集团公司第七一一研究所 | Online prejudgment system and online prejudgment method of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112007001644T5 (en) | 2009-05-28 |
| JP4715923B2 (en) | 2011-07-06 |
| CN101490383B (en) | 2012-01-25 |
| WO2008007720A1 (en) | 2008-01-17 |
| JPWO2008007720A1 (en) | 2009-12-10 |
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