EP1382822A2 - Verfahren zur Adaption eines Kraftstoff-Luft-Gemisches bei einem Verbrennungsmotor und elektronische Steuereinrichtung - Google Patents
Verfahren zur Adaption eines Kraftstoff-Luft-Gemisches bei einem Verbrennungsmotor und elektronische Steuereinrichtung Download PDFInfo
- Publication number
- EP1382822A2 EP1382822A2 EP03007515A EP03007515A EP1382822A2 EP 1382822 A2 EP1382822 A2 EP 1382822A2 EP 03007515 A EP03007515 A EP 03007515A EP 03007515 A EP03007515 A EP 03007515A EP 1382822 A2 EP1382822 A2 EP 1382822A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- adaptation
- mixture
- deviation
- type
- mixture deviation
- 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
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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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D41/1402—Adaptive control
-
- 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
- F02D41/08—Introducing corrections for particular operating conditions for idling
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D41/1406—Introducing closed-loop corrections characterised by the control or regulation method with use of a optimisation method, e.g. iteration
-
- 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
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
- F02D41/3029—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode further comprising a homogeneous charge spark-ignited mode
Definitions
- the invention relates to a method for adapting a fuel-air mixture in an internal combustion engine and by an electronic control device according to the Genre of independent claims.
- This Systematic errors are corrected by the mixture adaptation.
- the Mixture deviations are adapted in the load-speed range in which they are impact strongly. Calculated corrections are then made in the entire load / speed range used. Additive mixture deviations are in the lower load speed range adapted, multiplicative deviations in the medium load speed range. To statutory regulations should identify emissions-related errors using on-board means an error lamp should be activated if necessary.
- the mixture adaptation is also used for fault diagnosis. For example, if the corrective action is the Adaption too large, this indicates an error.
- Mixture adaptation in phases by means of a time and / or event control Approved. If the combustion process is in during a mixture adaptation phase one of the adaptation areas is operated, one takes place in this area Mixture adaptation (a learning process). Only at the end of the adaptation phase and at If you leave the adaptation area, the adaptation is deactivated again.
- the sample spread and with uncontrolled probe heating the measured lambda value differs from the physically existing lambda value Engines with gasoline direct injection mainly in shift operation, whereby the Internal combustion engine is operated with excess air. Since the mixture adaptation is one Manipulated variable, which is based on the measured lambda for learning the error, in Taking into account, the adaptation in shift operation is not expedient. For adaptation is therefore switched to homogeneous operation and the mixture adaptation is activated.
- the engine In shift operation, the engine is loaded with a strongly stratified cylinder charge high excess air operated to minimize fuel consumption to reach.
- the stratified charge is achieved by late fuel injection, which ideally leads to the combustion chamber being divided into two zones: the first zone contains a combustible air-fuel mixture cloud on the spark plug. It is from the second zone, which consists of an insulating layer of air and residual gas consists.
- the potential for optimizing consumption results from the possibility of Engine largely unthrottled while avoiding gas exchange losses operate. Shift operation is preferred at a comparatively low load.
- the engine operated with homogeneous cylinder filling.
- the homogeneous cylinder filling results from early fuel injection during the intake process. As a result stands up available for combustion a longer time for mixture formation.
- the potential This operating mode for performance optimization results, for example, from the utilization of the total combustion chamber volume for filling with a combustible mixture.
- the motor temperature must reach the switch-on temperature threshold and the lambda probe must be ready for operation.
- the current values of load and speed are in certain areas in which learning takes place. This is known for example from US 4,584,982.
- homogeneous operation available. According to the well-known program, the mixture adaptation is fixed Time ranges activated.
- the invention aims at the period in which the engine to optimize consumption in shift operation, to enlarge.
- the Maintaining homogeneous operation for adaptation reduces the consumption advantage of the Direct petrol injection, since homogeneous operation is less economical than that Shifts.
- both in gasoline direct injection and Intake manifold injections a tank ventilation during the mixture adaptation interrupted, which is undesirable.
- the object of the invention is to control the timing to optimize periods with and without adaptation.
- the invention is also directed to an electronic control device Implementation of the above-mentioned procedure.
- the method according to the invention for adapting a fuel-air mixture an internal combustion engine with the features of the main claim has the advantage that the influence during or after the adaptation of a first type of mixture deviation the first type of mixture deviation to a previous adaptation of a second Type of mixture deviation is estimated and that the adaptation of the second type of Mixture deviation is corrected depending on this estimate.
- the influence of the first type of mixture deviation on the previous adaptation the second type of mixture deviation can be largely compensated for without a further adaptation of the second type of mixture deviation is required.
- the mixture adaptation time can be reduced. So there is more time for others Functions such as other diagnostic functions or tank ventilation Available.
- 5 denotes an engine control of an internal combustion engine.
- the Engine control 5 is of speed detection means 10 a speed n des Internal combustion engine and load sensing means 15 an engine load representing signal supplied.
- the engine load can, for example, based on the relative air filling rl of the internal combustion engine can be determined.
- the engine control 5 controls a fuel metering device 20, for example an injection valve.
- the motor controller 5 controls a switch 50.
- Mixture detection means 25 for example a lambda probe, either with the Motor control 5 or with first adaptation means 30 or with second adaptation means 35 connectable. Guide the first adaption means 30 and the second adaption means 35 the motor controller 5 each an adaptation value.
- first Adaptation means 30 with first means 40 for back calculation and the second Adaptation means 35 connected to second means 45 for back calculation.
- the means 40, 45 for back calculation are controlled by the engine control 5.
- the first means 40 for back calculation are connected to the second adaptation means 35, in order to correct the adaptation value formed by the second adaptation means 35.
- the second means 45 for back calculation are with the first adaptation means 30 connected to an adaptation value formed by the first adaptation means 30 correct.
- Mixture deviations can be additive mixture deviations on the one hand act, for example, on the effects of leakage air or injection valve delay times are to be traced back and on the other hand to multiplicative mixture deviations which For example, back to a characteristic drift of a hot film air mass meter are lead.
- Additive mixture deviations are in a lower load-speed range adapts, whereas multiplicative mixture deviations in one middle load-speed range can be adapted. Because the adaptation values only then can the mixture adaptation be completed be considered if the adaptation values are sufficiently stable. This can be done in the Motor control 5 on the basis of those supplied by the adaptation means 30, 35 Adaptation values are determined.
- the rate of change is individual adaptation values are each less than a predetermined threshold, the Adaptation of the associated type of mixture deviation considered stable.
- the mixture adaptation is considered to be steady.
- the Motor controller 5 can then cause switch 50, the mixture detection means 25 to connect to the engine control 5.
- the engine control 5 can then additionally the deviation of the fuel-air mixture determined by the mixture detection means 25 from a predetermined neutral value, for example 1, and in Depending on this deviation, check whether the mixture adaptation has settled.
- the Mixture adaptation by the engine control 5 is not detected as steady and the Motor controller 5 causes switch 50 to connect the Mixture detection means 25 with the first adaptation means 30 or the second Adaption means 35 for a re-adaptation. Otherwise, i.e. if the deviation of the Fuel-air mixture deviates less than the specified value from the neutral value, the detection of the steady-state mixture adaptation and the Switch position of the switch 50 is not changed.
- the mixture adaptation only as is considered complete when first the adaptation of the multiplicative Mixture deviation and then the adaptation of the additive mixture deviation takes place or is stable.
- the control of the switch 50 to connect the mixture detection means 25 with the first adaptation means 30 or with the second adaptation means 35 takes place from the Engine control 5 depending on the engine speed n and the engine load in this Example is represented by the relative air filling rl.
- the influence of the first type of mixture deviation on a adaptation of the second type of mixture deviation has been made beforehand and the Adaptation of the second type of mixture deviation depending on this estimate correct.
- the Motor control 5 actuate switch 50 in such a way that it detects the mixture 25 connects to the engine control 5.
- the engine control 5 compares in the described the fuel-air ratio with the predetermined neutral Value and initiates a readjustment if the deviation is the specified value exceeds.
- the mode of operation of the electronic control device 1 is intended to serve as an example below be described according to Figure 1.
- the engine control 5 determines the current load-speed range. In a first load-speed range, the engine control 5 initiates the Switch 50 for connecting the mixture detection means 25 to the first Adaption means 30. In a second load speed range, that of the first load speed range is different, the motor controller 5 causes the switch 50 to Connection of the mixture detection means 25 with the second adaptation means 35.
- the engine control system is the second Load speed range detected and the switch 50 to connect the Mixture detection means 25 initiated with the second adaptation means 35. It takes place then an adaptation of the second type of mixture deviation takes place.
- the second adaptation means 35 form a corresponding one Adaptation value that is supplied to the engine control 5.
- the adaptation of the second type of mixture deviation and the corresponding adaptation value formed also from a systematic error of the first kind of mixture deviation influenced and is therefore incorrect in this regard.
- the engine control 5 one If a change in the first load-speed range is detected, it causes the switch 50 for connecting the mixture detection means 25 to the first adaptation means 30 the deviation of the mean value determined in the manner described from the Mixture detection means 25 detected fuel-air mixture ratio the first adaption means 30 form the predetermined neutral value also an adaptation value by which the deviation is based to compensate for systematic errors of the first type of mixture deviation. there this adaptation can of course also depend on the remaining systematic error of the second Type of mixture deviation can be influenced.
- the adaptation value formed is also supplied to the engine control 5.
- the means 40, 45 are now provided for retroactive accounting.
- the first means 40 for back calculation is the influence of the systematic error first type of mixture deviation to the previous adaptation of the second type of Mixture deviation estimated.
- One formed depending on this estimate Correction value becomes the second from the first means 40 of the back calculation Adaption means 35 supplied.
- the second adaptation means 35 then correct theirs Adaptation value based on this correction value and lead the corrected adaptation value the engine control 5.
- the second means 45 can influence the systematic error of the second type of mixture deviation on a previously made Estimate the adaptation of the first type of mixture deviation and a corresponding one Form a correction value that is supplied to the first adaptation means 30.
- the first Adaptation means 30 can then determine their adaptation value based on that of the second Correct the correction value supplied to means 45 and the corrected adaptation value feed the motor control 5.
- the back calculation or correction using means 40, 45 requires no further Adaptation step and therefore saves mixture adaptation time.
- the correction of the Adaptation value of the second adaptation means by the first means 40 can during or after the adaptation of the systematic error of the first type of Mixture deviations occur through the first adaptation means 30.
- the correction of the Adaption value of the first adaption means 30 by the second means 45 can during or after the adaptation of the systematic error of the second type of Mixture deviations occur through the second adaptation means 35.
- the estimate or determination of the corresponding carried out by the means 40, 45 Correction values can be injected onto an idle engine Fuel mass related. Furthermore, it can be provided that the estimate or the formation of the correction value by the first means 40 depending on the Stability of the adaptation of the first type carried out in the first adaptation means 30 of mixture deviation is carried out. Accordingly, it can be provided that the estimation or formation of the correction value of the second means 45 as a function the stability of the adaptation of the second adaptation means 35 second type of mixture deviation is carried out. The stability of the adaptation leaves in the motor controller 5 in for the adaptation values of the two adaptation means 30, 35 the way described above, for example by checking whether the Rate of change of the respective adaptation value is smaller than the specified one Threshold is what speaks for a stable adaptation.
- the engine control 5 check whether the fuel-air ratio generated by the mixture detection means 25 is detected, no more than the specified value deviates from the neutral value.
- the corresponding adaptation value of the first adaptation means 30 or the second Adaption means 35 is only considered stable in this example if it Deviation is smaller than the specified value. Otherwise the corresponding applies Adaptation value as unstable.
- the mixture detection means 25 also by a fixed connection to the engine control 5 independently of the Switch position of the switch 50 to be connected to the stability test even then to be carried out if the adaptation is still active. This is dashed in Figure 1 shown.
- the Correction of the adaptation of the second type of mixture deviation to a change in the Adaption of the second type of mixture deviation can be limited.
- the adaptation of the second type of mixture deviation can be, for example by the difference between the current adaptation value of the second adaptation means 35 and a previous adaptation value of the second adaptation means 35. Accordingly, in the event of an unstable adaptation of the second type of Mixture deviation the correction of the adaptation of the first type of mixture deviation limited to a change in the adaptation of the first type of mixture deviation become. In this way, an overcompensation of the adaptation values at the Correction prevented.
- the described formation of the correction values depending on the stability of the adaptation can in the means 40, 45 for back calculation depending on a control signal done by the engine control 5, which, as described, the stability of the respective Adaptation with regard to the adaptation value in the respective adaptation means 30, 35 checked.
- the engine control 5 forms Fuel metering signal for controlling the fuel metering device 20 in order to Adapt fuel-air mixture according to the adaptation values.
- This can the fuel metering signal, the injection time and / or the injection quantity of the or the Influence or change the injection valves of the internal combustion engine accordingly.
- a plurality of fuel metering signals from engine control unit 5 can also be used be formed.
- the fuel metering device 20 comprises one or more Injectors of the internal combustion engine.
- the exemplary embodiment has so far been generally based on a first type of Mixture deviation and a second type of mixture deviation described.
- the first type of mixture deviation can be an additive, for example Mixture deviation and in the second type of mixture deviation by one act multiplicative mixture deviation.
- it can be the other way around first type of mixture deviation by a multiplicative mixture deviation and at the second type of mixture deviation is an additive mixture deviation.
- the Program starts during or after the multiplicative adaptation Mixture deviation.
- the adaptation of the multiplicative mixture deviation carried out in the first adaptation means 30 and the adaptation value formed, which is also referred to as multiplicative in the following Adaptation value is referred to, transmitted to the engine control 5 and there cached.
- the switch 50 is controlled in such a way that it switches the Mixture detection means 25 connects to the first adaptation means 30. Subsequently is branched to a program point 105.
- the checks Engine control 5 whether the adaptation value of the second adaptation means 35, the in Hereinafter also referred to as an additive adaptation value and in a previous adaptation of the additive mixture deviation was determined, is stable. If this is the case, a branch is made to a program point 110, otherwise it is closed a program point 120 branches.
- engine controller 5 checks whether the adaptation of the multiplicative mixture deviation has ended, ie whether the multiplicative adaptation value is stable. If this is the case, the program branches to a program point 115, otherwise the program branches back to program point 100 and the adaptation of the multiplicative mixture deviation is continued.
- the correction value KORR1 of the first means 40 is then fed to the second adaptation means 35.
- a new additive adaptation value oraneu_w is formed from the difference between an additive adaptation value ora_w formed in a previous adaptation of the additive mixture deviation and the correction value KORR1 of the first means 40.
- This new additive adaptation value oraneu_w is then fed to the engine control 5.
- the program is then exited.
- a maximum value is calculated in engine control unit 5 by which the additive adaptation value ora_w formed from the previously performed adaptation of the additive mixture deviation may be corrected.
- program point 125 Checks the engine control 5 in the manner described whether the adaptation of the multiplicative mixture deviation has ended. If this is the case, it becomes one Program point 130 branches, otherwise the program returns to program point 100 branched and the adaptation of the multiplicative mixture deviation continued.
- the second correction value KORR2 is at the maximum value dorarrmx_w limited by that of the additive Mixture deviation formed additive adaptation value ora_w may be corrected. This ensures that there is no overcompensation for the influence of the multiplicative mixture deviation on the previous adaptation of the additive Mixture deviation comes with an unstable additive adaptation value. Also the second correction value KORR2 is fed to the second adaptation means 35, which then in the manner described in accordance with the new additive adaptation value oraneu_w Form equation (3) and this new additive adaptation value oraneu_w der Feed motor control 5. Then the program is also exited.
- the inventive method is a reduction in Mixture adaptation time with constant diagnostic reliability for the mixture system reached.
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- 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)
Abstract
Description
- Figur 1
- ein Blockschaltbild einer elektronischen Steuereinrichtung zur Durchführung des erfindungsgemäßen Verfahrens und
- Figur 2
- ein Beispiel für einen Ablauf des erfindungsgemäßen Verfahrens.
- frai_b
- der zwischengespeicherte aktuelle multiplikative Adaptionswert, der den Mitteln 40 von der Motorsteuerung 5 oder den ersten Adaptionsmitteln 30 zugeführt ist.
- fraistrt_b
- der zu Beginn der Adaption der multiplikativen Gemischabweichung zwischengespeicherte multiplikative Adaptionswert, der den Mitteln 40 ebenfalls von der Motorsteuerung 5 zugeführt sein kann.
- ORAMX
- ein vorgegebener maximaler additiver Adaptionswert
- RKLLMX
- die relative eingespritzte Kraftstoffmasse in Bezug auf die Gesamtmasse des Kraftstoff-Luft-Gemisches bei einer maximal auftretenden Gemischabweichung vom vorgegebenen Neutralwert im Leerlauf.
- oralt_w
- der additive Adaptionswert zu Beginn der Fahrt, also der zu Beginn der additiven Adaption in der Motorsteuerung 5 zwischengespeicherte additive Adaptionswert.
Claims (8)
- Verfahren zur Adaption eines Kraftstoff-Luft-Gemischs bei einem Verbrennungsmotor, bei dem verschiedene Arten von Gemischabweichungen adaptiert werden, dadurch gekennzeichnet, dass während oder nach Adaption einer ersten Art von Gemischabweichung der Einfluss der ersten Art von Gemischabweichung auf eine zuvor erfolgte Adaption einer zweiten Art von Gemischabweichung geschätzt wird und dass die Adaption der zweiten Art von Gemischabweichung in Abhängigkeit dieser Schätzung korrigiert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass als erste Art von Gemischabweichung eine additive Gemischabweichung und als zweite Art von Gemischabweichung eine multiplikative Gemischabweichung adaptiert werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass als erste Art von Gemischabweichung eine multiplikative Gemischabweichung und als zweite Art von Gemischabweichung eine additive Gemischabweichung adaptiert werden.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Schätzung auf eine im Leerlauf eingespritzte Kraftstoffmasse bezogen wird.
- Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Schätzung in Abhängigkeit der Stabilität der Adaption der ersten Art von Gemischabweichung durchgeführt wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass für den Fall einer stabilen Adaption der ersten Art von Gemischabweichung-eine Änderung dieser Adaption vollständig bei der Korrektur der Adaption der zweiten Art von Gemischabweichung berücksichtigt wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass für den Fall einer instabilen Adaption der ersten Art von Gemischabweichung die Korrektur der Adaption der zweiten Art von Gemischabweichung auf eine Änderung der Adaption der zweiten Art von Gemischabweichung begrenzt wird.
- Elektronische Steuereinrichtung (1) zur Durchführung des Verfahrens nach einem der vorherigen Ansprüche.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10232537 | 2002-07-18 | ||
| DE2002132537 DE10232537A1 (de) | 2002-07-18 | 2002-07-18 | Verfahren zur Adaption eines Kraftstoff-Luft-Gemisches bei einem Verbrennungsmotor und elektronische Steuereinrichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1382822A2 true EP1382822A2 (de) | 2004-01-21 |
| EP1382822A3 EP1382822A3 (de) | 2006-09-27 |
| EP1382822B1 EP1382822B1 (de) | 2008-04-02 |
Family
ID=29762028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030007515 Expired - Lifetime EP1382822B1 (de) | 2002-07-18 | 2003-04-01 | Verfahren zur Adaption eines Kraftstoff-Luft-Gemisches bei einem Verbrennungsmotor und elektronische Steuereinrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1382822B1 (de) |
| JP (1) | JP4809576B2 (de) |
| DE (2) | DE10232537A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104608A1 (de) * | 2006-03-14 | 2007-09-20 | Continental Automotive Gmbh | Adaptionsverfahren für streuungen in zylinderselektiven einspritzmengen einer direkteinspritzanlage und verfahren zur zylinderselektiven einspritzsteuerung |
| US7996144B2 (en) | 2008-03-11 | 2011-08-09 | Robert Bosch Gmbh | Method for determining the composition of a fuel blend |
| DE102011006587A1 (de) | 2011-03-31 | 2012-10-04 | Robert Bosch Gmbh | Verfahren zur Adaption eines Kraftstoff-Luft-Gemischs für eine Brennkraftmaschine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584982A (en) | 1983-11-12 | 1986-04-29 | Robert Bosch Gmbh | Arrangement for a fuel metering system for an internal combustion engine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2554854B2 (ja) * | 1984-07-27 | 1996-11-20 | 富士重工業株式会社 | 自動車用エンジンの学習制御方法 |
| JPH0656120B2 (ja) * | 1987-10-20 | 1994-07-27 | 株式会社ユニシアジェックス | 内燃機関の学習制御装置 |
| JPH0656118B2 (ja) * | 1987-10-20 | 1994-07-27 | 株式会社ユニシアジェックス | 内燃機関の学習制御装置 |
| JPH0686831B2 (ja) * | 1988-06-01 | 1994-11-02 | 株式会社ユニシアジェックス | 内燃機関の空燃比の学習制御装置 |
| JP3266000B2 (ja) * | 1996-08-26 | 2002-03-18 | 三菱自動車工業株式会社 | 筒内噴射型火花点火式内燃エンジンの制御装置 |
| DE10043072A1 (de) * | 2000-09-01 | 2002-03-14 | Bosch Gmbh Robert | Verfahren zur Gemischadaption bei Verbrennungsmotoren mit Benzindirekteinspritzung |
| DE10043689A1 (de) * | 2000-09-04 | 2002-03-14 | Bosch Gmbh Robert | Verfahren zur Verlustmomentenadaption bei einer Brennkraftmaschine |
-
2002
- 2002-07-18 DE DE2002132537 patent/DE10232537A1/de not_active Withdrawn
-
2003
- 2003-04-01 DE DE50309519T patent/DE50309519D1/de not_active Expired - Lifetime
- 2003-04-01 EP EP20030007515 patent/EP1382822B1/de not_active Expired - Lifetime
- 2003-06-23 JP JP2003178198A patent/JP4809576B2/ja not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584982A (en) | 1983-11-12 | 1986-04-29 | Robert Bosch Gmbh | Arrangement for a fuel metering system for an internal combustion engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104608A1 (de) * | 2006-03-14 | 2007-09-20 | Continental Automotive Gmbh | Adaptionsverfahren für streuungen in zylinderselektiven einspritzmengen einer direkteinspritzanlage und verfahren zur zylinderselektiven einspritzsteuerung |
| US7726276B2 (en) | 2006-03-14 | 2010-06-01 | Continental Automotive Gmbh | Method for adapting variations in cylinder-selective injection quantities of a direct injection system and method for cylinder-selectively controlling injection |
| US7996144B2 (en) | 2008-03-11 | 2011-08-09 | Robert Bosch Gmbh | Method for determining the composition of a fuel blend |
| DE102011006587A1 (de) | 2011-03-31 | 2012-10-04 | Robert Bosch Gmbh | Verfahren zur Adaption eines Kraftstoff-Luft-Gemischs für eine Brennkraftmaschine |
| US8903629B2 (en) | 2011-03-31 | 2014-12-02 | Robert Bosch Gmbh | Method for adapting a fuel/air mixture for an internal combustion engine |
| DE102011006587B4 (de) | 2011-03-31 | 2025-02-27 | Robert Bosch Gmbh | Verfahren zur Adaption eines Kraftstoff-Luft-Gemischs für eine Brennkraftmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4809576B2 (ja) | 2011-11-09 |
| DE50309519D1 (de) | 2008-05-15 |
| EP1382822A3 (de) | 2006-09-27 |
| DE10232537A1 (de) | 2004-01-29 |
| JP2004052760A (ja) | 2004-02-19 |
| EP1382822B1 (de) | 2008-04-02 |
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