EP0272290A1 - Verfahren zur kraftstoffzuteilung. - Google Patents
Verfahren zur kraftstoffzuteilung.Info
- Publication number
- EP0272290A1 EP0272290A1 EP87903861A EP87903861A EP0272290A1 EP 0272290 A1 EP0272290 A1 EP 0272290A1 EP 87903861 A EP87903861 A EP 87903861A EP 87903861 A EP87903861 A EP 87903861A EP 0272290 A1 EP0272290 A1 EP 0272290A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- acceleration
- injected
- additional
- determined
- 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.)
- Granted
Links
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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
-
- 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
- F02D41/105—Introducing corrections for particular operating conditions for acceleration using asynchronous injection
-
- 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
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
Definitions
- the invention relates to a method for fuel allocation during acceleration processes according to the preamble of the main claim.
- DE-OS 34 18 387 describes a method for allocating fuel to a plurality of cylinders of an internal combustion engine with sequential injection during acceleration.
- the amount of fuel supplied to the machine is set to a value suitable for the determined operating state after the generation of a trigger signal, and the sequential injections of the amount of fuel set in this way are determined in a predetermined manner Sequence in sync with the trigger signal.
- an additional fuel injection is carried out during a trigger signal. If a fuel increase is determined at the time of generation of an instantaneous trigger signal, then the additional injection of the set fuel increase into the cylinder is carried out, in which one of the sequential injections was carried out with the preceding trigger signal.
- the fuel increase in acceleration is preferably set to the value which corresponds to the difference between a fuel injection quantity set at the time of generation of the current trigger signal and a fuel injection quantity supplied during a previous trigger signal.
- the fuel injections take place synchronously and always at the same times as the pulse of a trigger signal is generated. There is no adaptation to the operating state.
- the method according to the invention for fuel allocation during acceleration processes with the characterizing features of the main claim has the advantage that the fuel quantity corresponding to the acceleration state is allocated immediately and quickly. With the detection of the acceleration state and the new calculation or new determination of the fuel quantity, the difference quantity to the fuel quantity determined in the previous work cycle is determined. This excess is supplied to the cylinders shares whose regular fuel injection has been started and whose intake stroke has not yet been completed. This takes place on the one hand in the form of additional fuel injections for cylinders, the fuel allocation of which has been completed, or by extending ongoing fuel injection by the calculated additional quantity. Furthermore, the injection valves for all fuel injections, the start of which has shifted into the past due to the newly calculated fuel quantity, are opened immediately.
- the method according to the invention is shown in the drawing and is explained in more detail in the following description.
- the drawing shows a time diagram of the fuel allocation after detection of an acceleration condition.
- the trigger signals TS being shown in the top line.
- This trigger signal TS is shifted early by an application-specific angle with respect to the top dead centers of the individual cylinders.
- the time period TK corresponds to a crankshaft rotation of 180 °.
- the opening times of the inlet valves V1 to V4 are shown for each of the cylinders 1 to 4.
- the operating state of the internal combustion engine is detected synchronously with the trigger signal TS.
- the definition of the acceleration state is carried out on the basis of the current operating state and the data from previous operating states, in particular the load, load changes, speed, etc. being recorded.
- the fuel allocation is adjusted by one corresponding to the respective acceleration state during the acceleration state of the internal combustion engine Additional quantity increased.
- the allocation takes place for all the cylinders whose regular fuel allocation has started and whose intake process has not yet ended, ie the inlet valve has not yet been closed. It is assumed below that the acceleration state is recognized at time t.
- the inlet valve V2 is just opened by the cylinder 2.
- an additional fuel injection called an intermediate spray
- the on-time fuel injection which is represented by the signal d, takes place again in the same cylinder, adapted to the new load.
- the on-schedule sequential fuel injection takes place in accordance with the amount of fuel, the battery voltage, the advance angle and the speed. The advance angle determines the position of the end of the sequential injection with respect to the opening of the associated intake valve.
- the next fuel injection which is indicated by the signal c, is started immediately in the cylinder 4.
- the injection would normally only have started at a later point in time, ie without the acceleration state having been recognized and without the method according to the invention becoming effective. Due to the illustrated immediate start of fuel injection according to the invention there is a rapid allocation of the amount of fuel corresponding to the sole condition.
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)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863623041 DE3623041A1 (de) | 1986-07-09 | 1986-07-09 | Verfahren zur kraftstoffzuteilung |
DE3623041 | 1986-07-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0272290A1 true EP0272290A1 (de) | 1988-06-29 |
EP0272290B1 EP0272290B1 (de) | 1990-01-31 |
EP0272290B2 EP0272290B2 (de) | 1993-01-27 |
Family
ID=6304733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87903861A Expired - Lifetime EP0272290B2 (de) | 1986-07-09 | 1987-06-23 | Verfahren zur kraftstoffzuteilung |
Country Status (6)
Country | Link |
---|---|
US (1) | US4893602A (de) |
EP (1) | EP0272290B2 (de) |
JP (1) | JP2711543B2 (de) |
KR (1) | KR970007390B1 (de) |
DE (2) | DE3623041A1 (de) |
WO (1) | WO1988000285A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3803952A1 (de) * | 1988-02-10 | 1989-08-24 | Pierburg Gmbh | Verfahren zum betreiben einer elektronisch geregelten brennstoffeinspritzeinrichtung fuer brennkraftmaschinen |
DE3991570T1 (de) * | 1989-01-20 | 1990-11-22 | Mitsubishi Motors Corp | Verfahren zur steuerung der kraftstoffzufuhr bei beschleunigung einer brennkraftmaschine mit elektronischer einspritzung |
US5187015A (en) * | 1989-02-17 | 1993-02-16 | Minnesota Mining And Manufacturing Company | Ice release composition, article and method |
JP2735870B2 (ja) * | 1989-04-10 | 1998-04-02 | マツダ株式会社 | エンジンの燃料制御装置 |
DE3939548A1 (de) * | 1989-11-30 | 1991-06-06 | Bosch Gmbh Robert | Elektronisches steuersystem fuer die kraftstoffzumessung bei einer brennkraftmaschine |
DE4040637C2 (de) * | 1990-12-19 | 2001-04-05 | Bosch Gmbh Robert | Elektronisches Steuersystem für die Kraftstoffzumessung bei einer Brennkraftmaschine |
US5137000A (en) * | 1991-03-29 | 1992-08-11 | Cummins Electronics Company | Device and method for decreasing delays in fuel injected internal combustion engines |
JP3325392B2 (ja) * | 1994-07-06 | 2002-09-17 | 本田技研工業株式会社 | 内燃エンジンの燃料噴射制御装置 |
JP2001342885A (ja) | 2000-05-31 | 2001-12-14 | Denso Corp | 内燃機関の燃料噴射制御装置 |
DE10111260A1 (de) * | 2001-03-09 | 2002-09-12 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Ermittlung von Einspritzventilzeitgaben und Füllungsvorgaben bei einer Brennkraftmaschine |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6018823B2 (ja) | 1979-04-02 | 1985-05-13 | 日産自動車株式会社 | 燃料噴射装置 |
JPS5825534A (ja) * | 1981-08-10 | 1983-02-15 | Toyota Motor Corp | 電子制御エンジンの燃料噴射方法 |
JPS58150048A (ja) * | 1982-03-02 | 1983-09-06 | Toyota Motor Corp | 内燃機関の電子制御燃料噴射方法 |
JPS59162334A (ja) * | 1983-03-04 | 1984-09-13 | Toyota Motor Corp | 多気筒内燃機関の燃料噴射制御方法 |
JPS59203840A (ja) * | 1983-05-04 | 1984-11-19 | Toyota Motor Corp | 内燃機関の燃料噴射制御方法 |
JPS59211731A (ja) | 1983-05-16 | 1984-11-30 | Toyota Motor Corp | 内燃機関用電子制御燃料噴射装置の噴射時期制御装置 |
JPS606041A (ja) * | 1983-06-15 | 1985-01-12 | Honda Motor Co Ltd | 多気筒内燃エンジンの燃料噴射制御方法 |
JPS6098144A (ja) * | 1983-11-02 | 1985-06-01 | Hitachi Ltd | 多気筒内燃機関用電子式燃料噴射装置 |
JPS60122238A (ja) * | 1983-12-02 | 1985-06-29 | Toyota Motor Corp | 内燃機関の燃料噴射方法 |
JPS60122244A (ja) * | 1983-12-07 | 1985-06-29 | Mazda Motor Corp | エンジンの燃料噴射装置 |
JPS60132043A (ja) * | 1983-12-19 | 1985-07-13 | Toyota Motor Corp | 燃料噴射制御装置 |
JPS61182440A (ja) * | 1985-02-08 | 1986-08-15 | Honda Motor Co Ltd | 内燃エンジンの燃料噴射時期制御方法 |
US4723524A (en) * | 1985-06-05 | 1988-02-09 | Hitachi, Ltd. | Fuel injection controlling method for an internal combustion engine |
JPH0650078B2 (ja) * | 1985-10-30 | 1994-06-29 | マツダ株式会社 | 電子制御燃料噴射装置 |
-
1986
- 1986-07-09 DE DE19863623041 patent/DE3623041A1/de not_active Withdrawn
-
1987
- 1987-06-23 WO PCT/DE1987/000283 patent/WO1988000285A1/de active IP Right Grant
- 1987-06-23 DE DE8787903861T patent/DE3761579D1/de not_active Expired - Lifetime
- 1987-06-23 JP JP62503589A patent/JP2711543B2/ja not_active Expired - Lifetime
- 1987-06-23 EP EP87903861A patent/EP0272290B2/de not_active Expired - Lifetime
- 1987-06-23 US US07/165,274 patent/US4893602A/en not_active Expired - Lifetime
-
1988
- 1988-03-09 KR KR88700261A patent/KR970007390B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8800285A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR970007390B1 (en) | 1997-05-08 |
EP0272290B2 (de) | 1993-01-27 |
DE3761579D1 (de) | 1990-03-08 |
JPH01500209A (ja) | 1989-01-26 |
DE3623041A1 (de) | 1988-01-14 |
JP2711543B2 (ja) | 1998-02-10 |
KR880701819A (ko) | 1988-11-05 |
US4893602A (en) | 1990-01-16 |
EP0272290B1 (de) | 1990-01-31 |
WO1988000285A1 (en) | 1988-01-14 |
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