EP0768456B1 - Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine - Google Patents
Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP0768456B1 EP0768456B1 EP96110544A EP96110544A EP0768456B1 EP 0768456 B1 EP0768456 B1 EP 0768456B1 EP 96110544 A EP96110544 A EP 96110544A EP 96110544 A EP96110544 A EP 96110544A EP 0768456 B1 EP0768456 B1 EP 0768456B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- determining signal
- value
- starting condition
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000002485 combustion reaction Methods 0.000 title claims description 13
- 230000002829 reductive effect Effects 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
Definitions
- the invention relates to a method and a device to control an internal combustion engine.
- DE-OS 24 40 013 is a method and devices known for controlling an internal combustion engine. With these Methods and devices for controlling the Internal combustion engine is started after a Wait the amount to be injected by one temperature-dependent value increases, which then over time is continuously reduced.
- This starting weakness occurs especially when the Starting process with increased load takes place, for example when the vehicle is on an incline, or if the used fuel is of poor quality, or other unfavorable thermal or atmospheric conditions available.
- the invention is based, with one Method and device for controlling a Internal combustion engine under all boundary conditions when starting to achieve a rapid increase in speed. This task is by the in the independent claims marked features solved.
- FIG. 1 shows a block diagram of the device according to the invention
- Figure 2 is a flow diagram of the method according to the invention.
- actuator 100 designates a power-determining actuator. This is a diesel internal combustion engine around the control rod of a row pump or the adjustment lever a distributor pump. For solenoid valve controlled systems it is a solenoid valve that the Fuel metering determined. With spark ignited Internal combustion engines are actuator 100 by an actuator to change the throttle valve position.
- the Crossing point processes the output signal MEA one Approach quantity map 110 and the output signal MER a multi-quantity ramp 115.
- the multi-quantity ramp 115 becomes the output signal of a Switching means 120 and the output signal of a Link point 125 fed.
- the node 125 forms the difference of the Output signal MEM of a map 130 in which the maximum permissible starting quantity is stored, and the signal MEB one Limiting map 135.
- the map 130 is under another a speed signal N fed.
- the switching means 120 connects the Minimum quantity specification 140 with the quantity ramp 115 controlled switching means 120 connects this one Junction 145 with the quantity ramp 115.
- the Link point 145 links the with a positive sign Output signal MEP of the multiple quantity specification with the negative Sign of the output signal ME (dN / dt) Negative feedback 150.
- the negative feedback 150 is among other things the speed signal N fed.
- the switching means 120 is from the output of an AND gate 155 controlled.
- the AND gate combines the output signal ANF of a second AND gate 160 and the output signal a holding member 165.
- the AND gate 160 that Output signal of node 125 and a Speed condition of a block 161, a condition for the pedal value transmitter of block 162 and a signal from Brake 163 fed.
- the holding member 165 is followed by a delay 170 with a Signal applied.
- the delay element in turn is from a switching means 175 is applied.
- the switching device processes the output signal VT of a node 180 at the one entrance with a positive sign Output signal VT0 a delay time specification 185 is present and at its second output with a negative sign Output signal F (dN / dt) of a delay correction 190 is applied.
- Delay correction 190 is used, among other things. the Speed signal supplied.
- the quantity ramp 115 acts on the holding member 165 and the Switching means 125 with control signals. Corresponding acts on the AND gate 160 with the switching means 175 a control signal.
- a first step 200 the initialization takes place.
- the Excess quantity MER of quantity ramp 115 and the delay time VT are set to 0.
- a final value VTO is specified for the delay time.
- the query 210 checks whether a Starting condition ANF is present. If this is not the case, then Step 200 follows again. If this is the case, then in Step 220 the delay time VT by a fixed value elevated.
- the query 230 checks whether the value of the delay time VT is less than or equal to a final value VT0. Is not this the case, the delay time is in step 240 by shortens a correction value F.
- This correction value F (dN / dt) depends on the change in speed, in particular from the increase in speed.
- the correction value is from the Delay time correction 190 predefined. With an increase the speed, the delay time VT is shortened. The a positive value is deducted. At the exit of the Node 180 then lies around the correction value F (dN / dt) corrected delay time.
- step 250 follows. This means that the Delay 170 output signal high assumes that is retained by the holding member 165 as long as until the quantity ramp 115 a corresponding reset signal emits.
- step 250 the value of the excess MER is one positive value MEP, which is determined by the excess quantity 145 predefined is increased.
- step 260 the Multi-quantity value MER by a change in speed, especially the speed increase dependent correction value ME (dN / dt) decreased by the negative feedback 150 provided.
- the increase in the MER quantity value only takes place if the Delay time VT has expired and the starting condition ANF is present.
- the AND gate 155 controls this Switching means 120 and the output signal of the Junction point 145 arrives at quantity ramp 115.
- the excess quantity MER becomes the value MEG, the limit for the excess quantity, is limited. This means that after step 260 a query 270 follows, which checks whether the excess quantity MER is larger or is equal to the limit MEG. If this is the case, then in Step 275 set the excess amount to the limit MEG.
- a query 280 then follows, which checks whether the Starting condition ANF still exists. If so, so step 250 occurs again. If the starting condition is not met more before, i.e. the signal AMF is no longer available, so go the switching means 120 in its rest position. This means that in step 285 the excess MER by value MEN of the minimum quantity specification 140 is reduced. The query 290 then checks whether the excess MER is less than or equal to zero. If this is not the case, then query 280 occurs again. If this is the case, then step 200 takes place. This means that as soon as the excess quantity becomes less than or equal to zero, the delay time reset their initial value and the holding member 165 on Zero is reset.
- Query 280 recognizes that the starting condition ANF the amount is increased further until the limit MEG has been reached. Query 280 recognizes that the Start-up condition is no longer applicable, the quantity is increased by the value MEN reduced. As soon as the starting condition is present again, the amount is increased again by the value MEP.
- the Additional quantity (MER) over time until the limit value MEG is reached when the starting condition is met, the Additional quantity (MER) over time until the limit value MEG is reached. If the starting condition no longer applies, the Excess amount over time until the amount is yours has returned to the original value before the increase.
- Query 210 or query 280 check whether the Starting condition is present, these queries are in partial figure 2b shown in more detail. This query corresponds to that AND gate 160.
- a first query 211 checks whether a Accelerator pedal position signal PWG is greater than a threshold value SP is. If this is not the case, the Starting condition recognized. This condition checks if that Accelerator pedal is pressed.
- query 212 checks whether a Vehicle speed signal V is less than a threshold value SV is. If the vehicle speed signal V is greater than that Threshold value, is based on the absence of the starting condition recognized.
- query 213 checks whether the brake of the Vehicle is not actuated. If the brake is applied, so is recognized if the starting condition is not present. For this For example, the position of a brake light switch evaluated.
- query 214 follows checks whether the output signal MEM of the map 130 is greater than the output signal MED of the Limiting map 135. If this is not the case, then recognized for the absence of the starting condition. Is this the If so, the presence of the starting condition is recognized.
- the presence of the start-up case is only recognized if the accelerator pedal value PWG is greater than a threshold value SP, which Speed is less than a threshold SV that Output signal of the limitation map 135 smaller than that maximum possible starting quantity is MEM and the brake is not is operated.
- additional conditions added or conditions be omitted. After a recognized start request waited for a delay time VT and then the Approach quantity increased in a ramp.
- this delay time is a function of Speed increase dynamically extended.
- a Delay time VT0 specified which is then a by Speed increasing dependent value is shortened.
- the delay time is immediately at its initial value reset.
- the quantity ramp is reduced with the negative slope MEN. If a start-up condition is recognized again, it will immediately increased again with a positive slope MEP. If the excess quantity reaches zero again, the Delay time reset. An increase in volume does not occur again until the delay time has expired.
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)
Description
Claims (8)
- Verfahren zur Steuerung einer Brennkraftmaschine, insbesondere einer selbstzündenden Brennkraftmaschine, wobei abhängig von verschiedenen Betriebskenngrößen ein leistungsbestimmendes Signal vorgebbar ist, wobei bei Vorliegen einer Anfahrbedingung das leistungsbestimmende Signal nach Ablauf einer Wartezeit erhöht wird, dadurch gekennzeichnet, daß bei Vorliegen der Anfahrbedingung das leistungsbestimmende Signal über der Zeit zunimmt und bei Entfall der Anfahrbedingung das leistungsbestimmende Signal über der Zeit abnimmt.
- Verfahren nach Anspruch 1, daß die Wartezeit von der Änderung der Drehzahl abhängt.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Anfahrbedingung erkannt wird, wenn eine Bremse nicht betätigt ist, ein Fahrgeschwindigkeitssginal und ein Fahrpedalstellungssignal bestimmte Werte annehmen.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wert, um den das leistungsbestimmende Signal zunimmt, um einen Wert verringert wird, der von dem Signal, das der Änderung der Drehzahl entspricht, abhängt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es sich bei dem leistungsbestimmende Signal um die einzuspritzende Kraftstoffmenge handelt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wert um den das leistungsbestimmende Signal erhöht wird, auf einen Grenzwert begrenzt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das leistungsbestimmende Signal reduziert wird, bis es den Wert, der vor der Erhöhung vorlag, erreicht hat.
- Vorrichtung zur Steuerung einer Brennkraftmaschine, insbesondere einer selbstzündenden Brennkraftmaschine, wobei abhängig von verschiedenen Betriebskenngrößen ein leistungsbestimmendes Signal vorgebbar ist, wobei bei Vorliegen einer Anfahrbedingung das leistungsbestimmende Signal nach Ablauf einer Wartezeit erhöht wird, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die bei Vorliegen der Anfahrbedingung das leistungsbestimmende Signal über der Zeit erhöhen und bei Entfall der Anfahrbedingung das leistungsbestimmende Signal über der Zeit reduzieren.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19537786A DE19537786A1 (de) | 1995-10-11 | 1995-10-11 | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
DE19537786 | 1995-10-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0768456A2 EP0768456A2 (de) | 1997-04-16 |
EP0768456A3 EP0768456A3 (de) | 1998-12-23 |
EP0768456B1 true EP0768456B1 (de) | 2002-12-11 |
Family
ID=7774536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96110544A Expired - Lifetime EP0768456B1 (de) | 1995-10-11 | 1996-06-29 | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5918579A (de) |
EP (1) | EP0768456B1 (de) |
JP (1) | JPH09112328A (de) |
DE (2) | DE19537786A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9613400D0 (en) * | 1996-06-26 | 1996-08-28 | Rover Group | An internal combustion engine management system |
DE19645389C1 (de) * | 1996-11-04 | 1998-03-26 | Daimler Benz Ag | Verfahren zur Regelung der Vollasteinspritzmenge einer Dieselbrennkraftmaschine |
DE19944190A1 (de) * | 1999-09-15 | 2001-03-29 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erhöhung des Drehmoments bei einer direkteinspritzenden Brennkraftmaschine mit einem Abgasturbolader |
DE10061431B4 (de) * | 2000-12-09 | 2006-02-09 | Daimlerchrysler Ag | Verfahren zur Drehmomentüberhöhung beim Anfahren eines Kraftfahrzeugs mittels einer Kupplung |
DE102007001838A1 (de) * | 2007-01-12 | 2008-07-17 | Ford Global Technologies, LLC, Dearborn | Verfahren und Vorrichtung zur Steuerung des Antriebsstranges in einem Kraftfahrzeug |
DE102009033653B4 (de) * | 2009-07-17 | 2023-09-21 | Bayerische Motoren Werke Aktiengesellschaft | Anfahrunterstützung für Kraftfahrzeuge |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2440013A1 (de) * | 1974-08-21 | 1976-03-11 | Bosch Gmbh Robert | Kraftstoffeinspritzanlage fuer eine fahrzeugbrennkraftmaschine |
JPS5834657B2 (ja) * | 1975-05-12 | 1983-07-28 | 日産自動車株式会社 | 空燃比制御装置 |
JPS5841240A (ja) * | 1981-09-03 | 1983-03-10 | Nissan Motor Co Ltd | 気筒数制御エンジン |
DE3209433C2 (de) * | 1982-03-16 | 1993-12-09 | Bosch Gmbh Robert | Verfahren zur Steuerung der Kraftstoffzufuhr zu einer Brennkraftmaschine mit Selbstzündung |
JPS59185833A (ja) * | 1983-04-06 | 1984-10-22 | Honda Motor Co Ltd | 内燃エンジンの燃料供給制御方法 |
JPS61286541A (ja) * | 1985-06-13 | 1986-12-17 | Diesel Kiki Co Ltd | 燃料噴射ポンプの燃料噴射進角制御装置 |
US4805579A (en) * | 1986-01-31 | 1989-02-21 | Honda Giken Kogyo Kabushiki Kaisha | Method of controlling fuel supply during acceleration of an internal combustion engine |
JPH0510173A (ja) * | 1991-07-04 | 1993-01-19 | Mitsubishi Electric Corp | 内燃機関の電子制御装置 |
JP2678985B2 (ja) * | 1991-09-18 | 1997-11-19 | 本田技研工業株式会社 | 内燃エンジンの空燃比制御装置 |
JP2872842B2 (ja) * | 1991-09-27 | 1999-03-24 | ヤマハ発動機株式会社 | 筒内噴射式2サイクルエンジンの燃焼制御装置 |
JPH05156983A (ja) * | 1991-12-09 | 1993-06-22 | Mitsubishi Electric Corp | 内燃機関の電子制御装置 |
JPH05214985A (ja) * | 1992-02-05 | 1993-08-24 | Fuji Heavy Ind Ltd | エンジンの燃料噴射制御方法 |
US5506771A (en) * | 1992-08-27 | 1996-04-09 | Eaton Corporation | Start gear ratio control system and method |
US5577482A (en) * | 1992-10-15 | 1996-11-26 | Nippondenso Co., Ltd. | Fuel supply system for internal combustion engines |
DE4304163A1 (de) * | 1993-02-12 | 1994-08-25 | Bosch Gmbh Robert | Einrichtung zur Steuerung der Kraftstoffeinspritzung bei einer Brennkraftmaschine |
DE4329448B4 (de) * | 1993-09-01 | 2007-08-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Zumessen von Kraftstoff im Startfall eines Verbrennungsmotors |
US5444627A (en) * | 1993-10-06 | 1995-08-22 | Caterpiller Inc. | Fuel delivery temperature compensation system and method of operating same |
US5353768A (en) * | 1993-11-15 | 1994-10-11 | Ford Motor Company | Fuel control system with compensation for intake valve and engine coolant temperature warm-up rates |
US5441030A (en) * | 1994-02-01 | 1995-08-15 | Satsukawa; Ryuji | Fuel injection system for two-stroke cycle engine |
JP3784080B2 (ja) * | 1994-06-16 | 2006-06-07 | 株式会社デンソー | 暖機過程時の燃料噴射量補正方法 |
US5529548A (en) * | 1995-01-09 | 1996-06-25 | Eaton Corporation | Vehicle launch engine fuel control |
-
1995
- 1995-10-11 DE DE19537786A patent/DE19537786A1/de not_active Ceased
-
1996
- 1996-06-29 DE DE59609965T patent/DE59609965D1/de not_active Expired - Lifetime
- 1996-06-29 EP EP96110544A patent/EP0768456B1/de not_active Expired - Lifetime
- 1996-10-01 US US08/724,465 patent/US5918579A/en not_active Expired - Lifetime
- 1996-10-08 JP JP8267511A patent/JPH09112328A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0768456A3 (de) | 1998-12-23 |
JPH09112328A (ja) | 1997-04-28 |
DE19537786A1 (de) | 1997-04-17 |
EP0768456A2 (de) | 1997-04-16 |
DE59609965D1 (de) | 2003-01-23 |
US5918579A (en) | 1999-07-06 |
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