CN107435734B - Lockup clutch of converter control method and device - Google Patents
Lockup clutch of converter control method and device Download PDFInfo
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- CN107435734B CN107435734B CN201610364594.3A CN201610364594A CN107435734B CN 107435734 B CN107435734 B CN 107435734B CN 201610364594 A CN201610364594 A CN 201610364594A CN 107435734 B CN107435734 B CN 107435734B
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- revolving speed
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- speed
- clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/14—Control of torque converter lock-up clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/74—Inputs being a function of engine parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/74—Inputs being a function of engine parameters
- F16H59/78—Temperature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
A kind of control method and device of lockup clutch of converter, which comprises obtain the current state information of vehicle, to generate the opening revolving speed of lockup clutch of converter according to the current state information, the vehicle is currently at coasting mode；Obtain the present engine revolving speed of the vehicle；If the present engine revolving speed is greater than the opening revolving speed, the lockup clutch of converter keeps lockup state；If the present engine revolving speed is less than or equal to the opening revolving speed, the lockup clutch of converter is opened.The method and device can optimize the control to lockup clutch of converter.
Description
Technical field
The present invention relates to the control method and device of Vehicle Engineering more particularly to lockup clutch of converter.
Background technique
The driving of vehicle and oil consumption are evaluation indexes important in automobile research and development, how to make the driving and oil consumption of vehicle
It is optimal, it has also become the problem of engineer pays close attention to the most.Automatic catch control system (AT) is a kind of mechanical, electrical, liquid collective effect
Complication system, because its technology maturation and performance it is reliable, be widely used in a variety of models.Fluid torque-converter (TC)
It is the important component of AT, because it uses oil liquid to be driven, solves the knotty problem in many engineerings, but oil liquid transmission brings function
Rate loss keeps the vehicle oil consumption for assembling AT higher.The lock-up clutch of TC alleviates the oil consumption problem of AT significantly.
But existing lockup clutch of converter control method have it is to be optimized.
Summary of the invention
Present invention solves the technical problem that being the control method for optimizing lockup clutch of converter.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of controlling party of lockup clutch of converter
Method, comprising: the current state information of vehicle is obtained, to generate lockup clutch of converter according to the current state information
Opening revolving speed, the vehicle is currently at coasting mode；Obtain the present engine revolving speed of the vehicle；If the current hair
Motivation revolving speed is greater than the opening revolving speed, then the lockup clutch of converter keeps lockup state；If the current hair
Motivation revolving speed is less than or equal to the opening revolving speed, then opens the lockup clutch of converter.
Optionally, the current state information includes at least one status information, described according to the current state information
The opening revolving speed for generating lockup clutch of converter includes: to generate engine according at least one status information to restore
Fuel feeding revolving speed and lock-up clutch adjustment amount；Fuel feeding revolving speed and the summation of lock-up clutch adjustment amount are restored to the engine, with
Obtain the opening revolving speed.
Optionally, the status information is selected from: engine speed gradient, compressor of air conditioner working condition, engine water temperature,
Gearbox-gear and TOT Transmission Oil Temperature.
Optionally, engine is generated according at least one status information and restores fuel feeding revolving speed and lock-up clutch adjustment
Amount includes: according to the engine speed gradient, compressor of air conditioner working condition and the mild gearbox-gear of engine water
Engine described in combination producing restores fuel feeding revolving speed；The locking is generated according to the gearbox-gear and the TOT Transmission Oil Temperature
Clutch adjustment amount.
Finally, according to the engine speed gradient, compressor of air conditioner working condition and the mild speed change of engine water
It includes: to table look-up to obtain first according to the engine speed gradient that engine described in the combination producing of gear box, which restores fuel feeding revolving speed,
Restore fuel feeding revolving speed；It is tabled look-up to obtain the second recovery fuel feeding revolving speed according to the compressor of air conditioner working condition；Started according to described
The combination of machine water temperature and gearbox-gear tables look-up to obtain third recovery fuel feeding revolving speed；Restore fuel feeding revolving speed, second to described first
Restore fuel feeding revolving speed and the third restores fuel feeding revolving speed and sums to obtain the engine recovery fuel feeding revolving speed.
The embodiment of the present invention also provides a kind of lockup clutch of converter control device, comprising: current state information
Acquiring unit, suitable for obtaining the current state information of vehicle, the vehicle is currently at coasting mode；It opens revolving speed and generates list
Member, suitable for generating the opening revolving speed of lockup clutch of converter according to the current state information；Present engine revolving speed
Acquiring unit, suitable for obtaining the present engine revolving speed of the vehicle；Locking unit is suitable for big in the present engine revolving speed
When the opening revolving speed, keeping the lockup clutch of converter is lockup state；Opening unit, suitable for working as described
When front engine revolving speed is less than or equal to the opening revolving speed, the lockup clutch of converter is opened.
Optionally, the current state information includes at least one status information, and the opening revolving speed generation unit includes:
Generation unit is suitable for generating engine according at least one status information and restores fuel feeding revolving speed and lock-up clutch adjustment
Amount；Summation unit is suitable for restoring fuel feeding revolving speed to the engine and lock-up clutch adjustment amount is summed, to obtain the opening
Revolving speed.
Optionally, the status information is selected from: engine speed gradient, compressor of air conditioner working condition, engine water temperature,
Gearbox-gear and TOT Transmission Oil Temperature.
Optionally, the generation unit includes: to restore fuel feeding revolving speed generation unit, is suitable for according to the engine speed ladder
Engine described in the combination producing of degree, compressor of air conditioner working condition and the mild gearbox-gear of engine water restores fuel feeding
Revolving speed；Lock-up clutch adjustment amount generation unit is suitable for according to the gearbox-gear and TOT Transmission Oil Temperature generation
Lock-up clutch adjustment amount.
Optionally, the recovery fuel feeding revolving speed generation unit includes: the first recovery fuel feeding revolving speed generation unit, is suitable for basis
The engine speed gradient tables look-up to obtain the first recovery fuel feeding revolving speed；Second restores fuel feeding revolving speed generation unit, is suitable for basis
The compressor of air conditioner working condition tables look-up to obtain the second recovery fuel feeding revolving speed；Third restores fuel feeding revolving speed generation unit, according to
The combination of the mild gearbox-gear of engine water tables look-up to obtain third recovery fuel feeding revolving speed；It is single to restore the summation of fuel feeding revolving speed
Member, suitable for the first recovery fuel feeding revolving speed, the second recovery fuel feeding revolving speed and the third are restored fuel feeding revolving speed and summed
Restore fuel feeding revolving speed to the engine.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
By obtaining the current state information of vehicle, hydraulic torque converter lockout clutch is generated according to the current state information
The opening revolving speed of device compares present engine revolving speed and the opening revolving speed, to control beating for lockup clutch of converter
Open opportunity.Due to having otherness between different vehicle, the state of same vehicle in the process of moving also has otherness, this hair
Opening revolving speed in bright embodiment is generated according to the current state of vehicle, and the opening revolving speed and vehicle can be made current
State matches, so that lockup clutch of converter can take into account fuel-economizing and driving comfort.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the control method of lockup clutch of converter in the embodiment of the present invention；
Fig. 2 is a kind of opening that lockup clutch of converter is generated according to current state information in the embodiment of the present invention
The flow chart of revolving speed；
Fig. 3 is a kind of structural schematic diagram of the control device of lockup clutch of converter in the embodiment of the present invention.
Specific embodiment
As previously mentioned, the driving of vehicle and oil consumption are evaluation indexes important in automobile research and development, how to make driving for vehicle
Sailing property and oil consumption are optimal, it has also become the problem of engineer pays close attention to the most.Automatic catch control system (AT) be it is a kind of it is mechanical, electrical,
The coefficient complication system of liquid, because its technology maturation and performance it is reliable, be widely used in a variety of models.Fluid power
Torque-converters (TC) is the important component of AT, because it uses oil liquid to be driven, solves the knotty problem in many engineerings, but oil liquid passes
It is dynamic to bring power loss, keep the vehicle oil consumption for assembling AT higher.The lock-up clutch of TC alleviates the oil consumption problem of AT significantly.
In the method for automobile engine management system (Engine Management System, EMS) control vehicle oil consumption
In, when vehicle is in coasting mode, control engine oil-break is an effective measures.
Because of the special construction of fluid torque-converter, when fluid torque-converter is in the open state, engine speed not with speed into
Row variation, can very quick return to idling.In order to achieve the purpose that oil consumption drops in vehicle, it can make to start revolving speed can be with by TC locking
It is changed with speed, extends the oil-break time of engine.
Under the prior art, a kind of method that control TC is opened is: restoring fuel feeding revolving speed (usually in the engine of a routine
It is a fixed revolving speed) on the basis of, calculate corresponding speed at this time.Calculated speed is recycled, considers certain drive
Sailing property sets out fluid torque-converter opening point.
But engine restores fuel feeding revolving speed and changes very greatly with driving cycles.One fluid torque-converter uniquely fixed is opened
Point can bring following problems:
If the lockup clutch of converter opening is to restore fuel feeding later, if that is, described to engine
Lockup clutch of converter restores fuel feeding in lockup state, then engine, which restores the mutation of fuel feeding bring torque, to lead to
TC alleviation is crossed, the impact of certain vehicle can be generated；Engine can not be weakened in the vibration that the slow-speed of revolution generates by TC simultaneously, vehicle
It can lead to the problem of the NVH such as certain noise, vibration.
Therefore to make fluid torque-converter play the role of alleviating impact and NVH, need that lockup clutch of converter is made to exist
The front opening of engine oil.But when vehicle is in coasting mode, TC is in lockup state, and engine speed can be with speed
Linear change makes engine be in oil-break state, if TC is opened too early, engine speed will decline quickly under idle speed control,
The oil-break time for shortening engine, it will increase the oil consumption of vehicle.
Through inventor the study found that oil-break in order to realize the engine long period, EMS need to consider to prevent engine from putting out
The factors such as fire.Therefore the current state information for restoring fuel feeding revolving speed and vehicle of engine is closely related, such as with engine water temperature,
The correlations such as gearbox-gear, air-conditioning work state, engine speed decrease speed, so engine restores fuel feeding revolving speed and drives
Operating condition is related, is not a unique revolving speed.
Lockup clutch of converter needs the front opening in engine oil, in addition, since fluid torque-converter is soft
Property transmission device, transmission effect is also closely bound up with the mild gearbox-gear of gear box oil, therefore needs to consider various relevant
Vehicle's current condition information, to obtain the opening opportunity of lockup clutch of converter.
In embodiments of the present invention, it by obtaining the current state information of vehicle, is generated according to the current state information
The opening revolving speed of lockup clutch of converter compares present engine revolving speed and the opening revolving speed, controls hydraulic moment changeable
The opening opportunity of device lock-up clutch.
Since the state of vehicle in the process of moving has otherness, the opening revolving speed in the embodiment of the present invention is according to vehicle
Current state generate, the opening revolving speed can be made to match with vehicle's current condition.
By comparing present engine revolving speed and revolving speed is opened, present engine revolving speed is greater than the opening revolving speed, then institute
It states lockup clutch of converter and keeps lockup state, so that engine speed changes with speed, reduce vehicle oil consumption；Working as
Front engine revolving speed drops to when opening revolving speed, opens the lockup clutch of converter, the fluid torque-converter made can be with
The effect of Flexible Transmission is played, noise, vibration etc. are reduced, so that lockup clutch of converter can take into account oil consumption
And driving comfort.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Fig. 1 is a kind of flow chart of lockup clutch of converter control method in the embodiment of the present invention.
In step s 11, the current state information of vehicle is obtained, to generate hydraulic moment changeable according to the current state information
The opening revolving speed of device lock-up clutch, the vehicle are currently at coasting mode.
Wherein, when vehicle is in coasting mode, engine stop fuel feeding is in locking in lockup clutch of converter
When state, speed can be leaned on to drive engine speed, so that engine speed is in a period of time after fuel cut-off, it will not be fast
Speed decline.
Vehicle's current condition information is to characterize vehicle in the information of current time state, such as can be engine speed ladder
The information such as degree, compressor of air conditioner working condition, engine water temperature, gearbox-gear and TOT Transmission Oil Temperature.
The opening opportunity for opening revolving speed instruction fluid torque-converter of lockup clutch of converter is that corresponding engine turns
The numerical value of speed.
Referring to fig. 2, in specific implementation, beating for lockup clutch of converter is generated according to the current state information
Opening revolving speed may include:
Step S111 generates engine according at least one status information and restores fuel feeding revolving speed and lock-up clutch tune
Whole amount.
Engine restores fuel feeding revolving speed can be calculated by EMS.Engine restores fuel feeding revolving speed may be related to many factors,
For example, can be according to the engine speed gradient, compressor of air conditioner working condition and the mild gearbox-gear of engine water
Combination producing described in recovery fuel feeding revolving speed.
In a specific implementation, it can be tabled look-up to obtain the first recovery fuel feeding revolving speed according to the engine speed gradient；Root
It tables look-up to obtain the second recovery fuel feeding revolving speed according to the compressor of air conditioner working condition；According to the mild gearbox shelves of the engine water
The combination of position tables look-up to obtain third recovery fuel feeding revolving speed；To it is described first restore fuel feeding revolving speed, second restore fuel feeding revolving speed and
The third restores fuel feeding revolving speed and sums to obtain the engine recovery fuel feeding revolving speed.
Engine speed gradient can indicate the change rate of engine speed, such as in vehicle brake, engine speed
Gradient is larger, to prevent vehicle stall, the first recovery fuel feeding revolving speed can be it is positively related with engine speed gradient, that is,
When engine speed gradient is larger, corresponding first recovery fuel feeding revolving speed is also larger.
When compressor of air conditioner works, certain oil consumption is needed, air-conditioning pressure can be found from compressor of air conditioner working condition table
The second recovery fuel feeding revolving speed that contracting machine current working status matches.For example, when the oil consumption needed for compressor of air conditioner is smaller, inquiry
It is also smaller that second obtained restores fuel feeding tachometer value.
When engine water temperature is lower, not enough, resistance is larger for lubrication, and it is also larger that corresponding third restores fuel feeding tachometer value；
When gearbox-gear is higher, resistance is larger by the power that power train is transmitted to engine flywheel end, puts out to prevent engine from having
Windburn danger, it is also larger that corresponding third restores fuel feeding revolving speed.It can be tabled look-up according to the combination of the mild gearbox-gear of engine water
It obtains third and restores fuel feeding revolving speed.
In another specific implementation, can be generated according to the gearbox-gear and the TOT Transmission Oil Temperature locking from
Clutch adjustment amount.Gearbox-gear and TOT Transmission Oil Temperature can have an impact fluid torque-converter solution lock control, lock-up clutch tune
Whole amount can be calculated by lock-up clutch controller.
It is understood that status information restores corresponding between fuel feeding revolving speed and lock-up clutch adjustment amount with engine
Relationship can be set according to vehicle model, to take into account the otherness between different vehicle.
Step S112 restores fuel feeding revolving speed to the engine and lock-up clutch adjustment amount is summed, to obtain described beat
Open revolving speed.
In specific implementation, engine restores fuel feeding revolving speed can be transferred to lock-up clutch controller by CAN bus
(TCU), by lock-up clutch controller to complete to restore the engine fuel feeding revolving speed and the summation of lock-up clutch adjustment amount
Operation.
In step s 12, the present engine revolving speed of the vehicle is obtained.
The opening revolving speed of lockup clutch of converter is the numerical value of a corresponding engine speed, by comparing opening
Revolving speed and present engine revolving speed can control the lockup clutch of converter state of vehicle.
In step s 13, if the present engine revolving speed is greater than the opening revolving speed, the hydraulic torque converter lockout
Clutch keeps lockup state；If the present engine revolving speed is less than or equal to the opening revolving speed, opens the fluid power and become
Square device lock-up clutch.
As previously mentioned, when vehicle is in coasting mode, engine oil-break is in lock in lockup clutch of converter
Only when state, speed can be leaned on to drive engine speed, so that engine speed is in a period of time after fuel cut-off, it will not
Rapid decrease.
By comparing present engine revolving speed and revolving speed is opened, present engine revolving speed is greater than the opening revolving speed, then institute
It states lockup clutch of converter and keeps lockup state, so that engine speed changes with speed, reduce vehicle oil consumption；Working as
Front engine revolving speed drops to when opening revolving speed, opens the lockup clutch of converter, the fluid torque-converter made can be with
Noise and vibration are reduced, so that lockup clutch of converter in fuel feeding front opening to play the effect of Flexible Transmission
Can take into account oil consumption and driving.
The embodiment of the present invention also provides a kind of lockup clutch of converter control device, and structural schematic diagram is shown in Fig. 3.
Lockup clutch of converter control device may include:
Current state information acquiring unit 31, suitable for obtaining the current state information of vehicle, the vehicle is currently at cunning
Row operating condition；
Revolving speed generation unit 32 is opened, suitable for generating lockup clutch of converter according to the current state information
Open revolving speed；
Present engine revolving speed acquiring unit 33, suitable for obtaining the present engine revolving speed of the vehicle；
Locking unit 34 is suitable for keeping the fluid power to become when the present engine revolving speed is greater than the opening revolving speed
Square device lock-up clutch is lockup state；
Opening unit 35 is suitable for opening the liquid when the present engine revolving speed is less than or equal to the opening revolving speed
Power torque converter lock-up clutch.
In specific implementation, the current state information includes at least one status information, and the opening revolving speed generates single
Member includes:
Generation unit is suitable for generating engine according at least one status information and restores fuel feeding revolving speed and locking clutch
Device adjustment amount；
Summation unit is suitable for restoring fuel feeding revolving speed to the engine and lock-up clutch adjustment amount is summed, to obtain
State opening revolving speed.
In specific implementation, the status information can be selected from: engine speed gradient, compressor of air conditioner working condition,
Engine water temperature, gearbox-gear and TOT Transmission Oil Temperature.
In specific implementation, the generation unit may include:
Restore fuel feeding revolving speed generation unit, is suitable for according to the engine speed gradient, compressor of air conditioner working condition, with
And engine described in the combination producing of the mild gearbox-gear of engine water restores fuel feeding revolving speed；
Lock-up clutch adjustment amount generation unit is suitable for generating institute according to the gearbox-gear and the TOT Transmission Oil Temperature
State lock-up clutch adjustment amount.
In specific implementation, the recovery fuel feeding revolving speed generation unit may include:
First restores fuel feeding revolving speed generation unit, obtains the first recovery confession suitable for tabling look-up according to the engine speed gradient
Oily revolving speed；
Second restores fuel feeding revolving speed generation unit, extensive suitable for tabling look-up to obtain second according to the compressor of air conditioner working condition
Multiple fuel feeding revolving speed；
Third restores fuel feeding revolving speed generation unit, tables look-up to obtain according to the combination of the mild gearbox-gear of the engine water
Third restores fuel feeding revolving speed；
Restore fuel feeding revolving speed summation unit, be suitable for it is described first restore fuel feeding revolving speed, second restore fuel feeding revolving speed and
The third restores fuel feeding revolving speed and sums to obtain the engine recovery fuel feeding revolving speed.
Lockup clutch of converter control device can be located in EMS and TCU in the embodiment of the present invention, specific implementation
It is referred to lockup clutch of converter control method, this is not repeated.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (6)
1. a kind of lockup clutch of converter control method characterized by comprising
The current state information of vehicle is obtained, to generate beating for lockup clutch of converter according to the current state information
Revolving speed is opened, the vehicle is currently at coasting mode；
Obtain the present engine revolving speed of the vehicle；
If the present engine revolving speed is greater than the opening revolving speed, the lockup clutch of converter keeps locking shape
State；If the present engine revolving speed is less than or equal to the opening revolving speed, the lockup clutch of converter is opened；
The current state information includes at least one status information, described to generate hydraulic moment changeable according to the current state information
The opening revolving speed of device lock-up clutch includes:
Engine, which is generated, according at least one status information restores fuel feeding revolving speed and lock-up clutch adjustment amount；
Fuel feeding revolving speed and the summation of lock-up clutch adjustment amount are restored to the engine, to obtain the opening revolving speed；
The status information is selected from: engine speed gradient, compressor of air conditioner working condition, engine water temperature, gearbox-gear
And TOT Transmission Oil Temperature.
2. lockup clutch of converter control method according to claim 1, which is characterized in that according to it is described at least
A kind of status information generates that engine restores fuel feeding revolving speed and lock-up clutch adjustment amount includes:
According to the group of the engine speed gradient, compressor of air conditioner working condition and the mild gearbox-gear of engine water
Symphysis restores fuel feeding revolving speed at the engine；
The lock-up clutch adjustment amount is generated according to the gearbox-gear and the TOT Transmission Oil Temperature.
3. lockup clutch of converter control method according to claim 2, which is characterized in that started according to described
Engine described in the combination producing of machine revolving speed gradient, compressor of air conditioner working condition and the mild gearbox-gear of engine water
Restoring fuel feeding revolving speed includes:
It is tabled look-up to obtain the first recovery fuel feeding revolving speed according to the engine speed gradient；
It is tabled look-up to obtain the second recovery fuel feeding revolving speed according to the compressor of air conditioner working condition；
It is tabled look-up to obtain third recovery fuel feeding revolving speed according to the combination of the mild gearbox-gear of the engine water；
Are restored by fuel feeding revolving speed and sums to obtain institute for the first recovery fuel feeding revolving speed, the second recovery fuel feeding revolving speed and the third
It states engine and restores fuel feeding revolving speed.
4. a kind of lockup clutch of converter control device characterized by comprising
Current state information acquiring unit, suitable for obtaining the current state information of vehicle, the vehicle is currently at coasting mode；
Revolving speed generation unit is opened, the opening suitable for generating lockup clutch of converter according to the current state information turns
Speed；
Present engine revolving speed acquiring unit, suitable for obtaining the present engine revolving speed of the vehicle；
Locking unit is suitable for keeping the fluid torque-converter to lock when the present engine revolving speed is greater than the opening revolving speed
Only clutch is lockup state；
Opening unit is suitable for opening the hydraulic moment changeable when the present engine revolving speed is less than or equal to the opening revolving speed
Device lock-up clutch；
The current state information includes at least one status information, and the opening revolving speed generation unit includes: generation unit, is fitted
Restore fuel feeding revolving speed and lock-up clutch adjustment amount in generating engine according at least one status information；
Summation unit is suitable for restoring fuel feeding revolving speed to the engine and lock-up clutch adjustment amount is summed, to obtain described beat
Open revolving speed；
The status information is selected from: engine speed gradient, compressor of air conditioner working condition, engine water temperature, gearbox-gear
And TOT Transmission Oil Temperature.
5. lockup clutch of converter control device according to claim 4, which is characterized in that the generation unit
Include:
Restore fuel feeding revolving speed generation unit, is suitable for according to the engine speed gradient, compressor of air conditioner working condition, Yi Jifa
Engine described in the combination producing of motivation water temperature and gearbox-gear restores fuel feeding revolving speed；
Lock-up clutch adjustment amount generation unit is suitable for generating the lock according to the gearbox-gear and the TOT Transmission Oil Temperature
Only clutch adjustment amount.
6. lockup clutch of converter control device according to claim 5, which is characterized in that the recovery fuel feeding
Revolving speed generation unit includes:
First restores fuel feeding revolving speed generation unit, obtains the first recovery fuel feeding turn suitable for tabling look-up according to the engine speed gradient
Speed；
Second restores fuel feeding revolving speed generation unit, obtains the second recovery confession suitable for tabling look-up according to the compressor of air conditioner working condition
Oily revolving speed；
Third restores fuel feeding revolving speed generation unit, tables look-up to obtain third according to the combination of the mild gearbox-gear of the engine water
Restore fuel feeding revolving speed；
Restore fuel feeding revolving speed summation unit, is suitable for restoring fuel feeding revolving speed to described first, second restores fuel feeding revolving speed and described
Third restores fuel feeding revolving speed and sums to obtain the engine recovery fuel feeding revolving speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364594.3A CN107435734B (en) | 2016-05-27 | 2016-05-27 | Lockup clutch of converter control method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364594.3A CN107435734B (en) | 2016-05-27 | 2016-05-27 | Lockup clutch of converter control method and device |
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| CN107435734A CN107435734A (en) | 2017-12-05 |
| CN107435734B true CN107435734B (en) | 2019-09-10 |
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|---|---|---|---|---|
| CN110242743B (en) * | 2018-03-09 | 2021-01-22 | 上海汽车集团股份有限公司 | Control method and control system of hydraulic torque converter |
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