CN103249933A - Method for controlling and adapting an air/fuel mixture in an internal combustion engine - Google Patents
Method for controlling and adapting an air/fuel mixture in an internal combustion engine Download PDFInfo
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- CN103249933A CN103249933A CN2011800602617A CN201180060261A CN103249933A CN 103249933 A CN103249933 A CN 103249933A CN 2011800602617 A CN2011800602617 A CN 2011800602617A CN 201180060261 A CN201180060261 A CN 201180060261A CN 103249933 A CN103249933 A CN 103249933A
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- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
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- 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)
Abstract
The method relates to a method for controlling and adapting an air/fuel ratio of an air/fuel mixture in an internal combustion engine (2), in particular in a spark ignition engine; having the following steps: - providing an actual lambda value (Lambdaist), which specifies a current air/fuel ratio value, and a setpoint lambda value (Lambdasoll), which specifies a desired air/fuel ratio value; - determining as a function of the actual lambda value (Lambdaist) a correction value for controlling and adapting the actual lambda value (Lambdaist) to the setpoint lambda value (Lambdasoll), wherein the correction value corresponds, as a function of the deviation of the actual lambda value (Lambdaist) from the setpoint lambda value (Lambdasoll), to a charge correction value (FKorr2) for applying a variable which influences the air charge of the internal combustion engine (2) or a fuel correction value (KKorr) for applying a variable which influences the fuel quantity to be injected in the internal combustion engine (2).
Description
Technical field
The present invention relates to explosive motor, especially a kind of method for adjusting and adaptive air/fuel mixture, air/fuel mixture is transported to the cylinder the inside of explosive motor.The invention particularly relates to for the method for regulating and fit in the operating air/fuel mixture of explosive motor.
Background technique
Otto engine in servicely drives with air/fuel mixture common, and it is near stoichiometric balance, and namely the λ value of air/fuel mixture is about 1.This internal-combustion engine is at present almost only by the representative of so-called EGAS system.EGAS system regulation have throttle valve throttling arrangement electronic controller and have for regulating and the λ adjusting of adaptive air/fuel ratio.By means of the sensor of the air that be used for to obtain to exist in the inside, firing chamber, for example by means of air-mass or intake manifold pressure sensor and be used for obtaining the sensor of waste gas component, for example regulate by means of the λ probe or adaptive.
When the operation of common Otto engine, carry and stoichiometry ground is ejected into the firing chamber corresponding to the fuel quantity of this air stream or is positioned at the suction tude the inside of suction valve front by throttle valve, cylinder control air quantity.Regulate trial by means of mixture, regulate air/fuel mixture near stoichiometric balance ground at least.Be transported to the adjusting of the air of cylinder, so-called charge of air by given by the driver of internal combustion engine drives.Driver's controlling torque, especially by being connected the pedal on the controller electronically, wherein the theory inflation corresponding with it explained and be converted into thus to pedal position usually as corresponding driver's hope torque.Theoretical inflation is corresponding to the air quantity in the cylinder that forms torque, and it is essential for the torque of driver's hope is provided.Theoretical inflation is corresponding to a position of throttle valve, and controller is correspondingly regulated throttle valve thus.
Do not consider that the actual inflation of dynamic effect follows the theory inflation of regulating, wherein obtain actual inflation by controller enduringly by model or sensor.Correspondingly calculate and be subordinated to the fuel quantity of actual inflation and be transported to cylinder.Because because the deviation between the fuel quantity that aging effect, the similar factor of component sum of errors are created in actual inflation or actual ejection and desired charge of air or the desired fuel quantity that will spray, realization adjusting and adaptation method inside controller.Inflation when adaptive in ventilating control device inside for the theoretical position that calculates throttle valve being basic correction air inflation by the given theory inflation of driver's hope torque, by with theory inflation and the actual inflation that records relatively.If there is deviation in theoretical inflation each other with actual inflation, then reason is, employed throttle valve model does not enough accurately reproduce current and makes model adaptive by correction factor so for a long time, up to theory inflation and another the causing of actual inflation.For example can regulate and fit in the dirty or drift effect of throttle valve during the automotive service life thus.
Stipulate that in addition mixture is adaptive and regulate, be used for guaranteeing desired stoichiometrical mixing, equaling or near 1 λ value, also under the situation of component error, dirty or drift effect, can realize the waste-gas cleaning of the best thus by the catalyst converter of postposition.The fuel quantity that the signal that provided by λ probe is provided for this reason continuously and sprays according to the type of engine system or by coupling by corresponding correction value or by the coupling charge of air by revising throttle valve position adjusting and adaptive mixture.
As long as mistake in computation or sensor or actuator or its mistake that is connected with controller do not occur in controller inside, the correction of the charge of air that the adaptive correction that just can use the fuel quantity that will spray maybe will be carried is used for revising because the component that aging, drift and similar factor cause change.But can produce calculating or wrong sensor or the actuator function of the mistake of controller inside, and cause adaptive and corrected parameter thus, they cause being increased by the torque of the explosive motor of controller control, and this is not that the driver expects.The automobile that may cause based on this not expecting accelerates the safety that may cause threatening driver or other personnel thus.
Summary of the invention
Therefore the objective of the invention is, provide a kind of for carrying out adaptive method and apparatus, this adaptive adjusting that influences air/fuel ratio can be avoided because the torque of not expecting that wrong calculating causes in controller increases by this method and apparatus.
Method and as side by side claim described device, engine system and the computer program realization of this purpose by being used for adaptive engine system according to claim 1.
Other favourable expansion structure of the present invention provides in the dependent claims.
According to first aspect regulation a kind of for regulate and fit in explosive motor, especially in the method for the air/fuel ratio of the air/fuel mixture of Otto engine the inside.This method comprises following step:
-actual λ value is provided, it provides current air/fuel ratio data, and theoretical λ value is provided, and it provides desired air/fuel ratio data;
-try to achieve corrected parameter according to actual λ value, be used for adjusting and adaptive actual λ value to theoretical λ value,
Wherein said corrected parameter according to the deviation of actual λ value and theoretical λ value corresponding to the inflation correction value of the parameter that is used for loading effect explosive motor charge of air or corresponding to the fuel correction value of the parameter that is used for the explosive motor fuel quantity that loading effect will spray.
Above-mentioned be used for carrying out in engine system regulate and the thought of adaptive method is, carry out adaptive intervention like this by corrected parameter or adaptation parameter, feasiblely can increase the torque that is provided by explosive motor in no instance.This point realizes that thus described adjusting intervention and adaptive intervention not only can but also can be carried out based on the charge of air that will regulate based on the fuel quantity that will spray.For fear of because wrong calculating or other wrong raising torque will guarantee that described adaptive intervention neither improves the fuel quantity that will spray, do not improve the charge of air that is arranged in cylinder yet.By or reduce the fuel quantity that will spray or the charge of air that is transported to cylinder, can carry out that mixture is regulated and adaptive.
Use the inflation correction value of the parameter that is used for loading effect explosive motor charge of air in addition as corrected parameter, if actual λ value is greater than theoretical λ value.
Use the fuel correction value of the parameter of the explosive motor fuel quantity that loading effect will spray alternatively or additionally as corrected parameter, if actual λ value is less than theoretical λ value.
Described corrected parameter be can select so in addition, namely fuel quantity or charge of air only allowed to reduce based on corrected parameter.
Stipulate according to a further aspect a kind of for regulate and fit in explosive motor, especially at the device of the air/fuel ratio of the air/fuel mixture of Otto engine the inside.This device is designed to, and is used for:
-actual λ value is provided, it provides current air/fuel ratio data, and theoretical λ value is provided, and it provides desired air/fuel ratio data;
-try to achieve corrected parameter according to actual λ value, be used for to regulate and adaptive actual λ value to theoretical λ value, wherein said corrected parameter according to the deviation of actual λ value and theoretical λ value corresponding to for the inflation correction value of the parameter of loading effect explosive motor charge of air or corresponding to the fuel correction value of the parameter of the explosive motor fuel quantity that will spray for loading effect.
Stipulate a kind of engine system according to a further aspect.This engine system comprises:
-explosive motor;
-for the adjustment prober of adjusting the explosive motor charge of air;
-for the adjustment prober of adjusting the fuel quantity that will spray;
-controller is used for
-actual λ value is provided, it provides current air/fuel ratio data, and theoretical λ value is provided, and it provides desired air/fuel ratio data;
-try to achieve corrected parameter according to actual λ value, be used for to regulate and adaptive actual λ value to theoretical λ value, wherein said corrected parameter according to the deviation of actual λ value and theoretical λ value corresponding to for the inflation correction value of the parameter of loading effect explosive motor charge of air or corresponding to the fuel correction value of the parameter of the explosive motor fuel quantity that will spray for loading effect.
Stipulate a computer program according to a further aspect, it contains program coding, if on data processing unit executive routine when coding, it implements above-mentioned method.
Description of drawings
Explain the preferred embodiments of the present invention in detail by means of accompanying drawing below.Accompanying drawing illustrates:
The schematic representation of Fig. 1 engine system has the explosive motor of intake manifold injection,
Fig. 2 is used for being illustrated in the skeleton diagram of the function that the controller the inside of engine system realizes, be used for adjusting cylinder charge of air, try to achieve fuel quantity and the corresponding adaptation method that will spray.
Embodiment
Fig. 1 illustrates the schematic representation of the engine system 1 with explosive motor 2.Explosive motor 2 is the Otto engine (spark ignition engines) with four cylinders 3 in this embodiment.Explosive motor 2 or cylinder 3 are carried air by air input system 4.At input end air mass sensor 5 is set in air conveying system 4 the insides, it can be designed to the hot-film air sensor, for detection of in the through-flow air quantity in explosive motor 2 the insides.
Throttle valve regulator with throttle valve 6 is set in air mass sensor 5 downstreams, and it also controls the charge of air that exists in cylinder 3 the insides thus by the air stream of adjusting throttle valve 6 control explosive motors 2 the insides.This charge of air definitely as in cylinder 3 the insides in when burning the air quantity for use, and provide as air mass flow, it and rotating speed provide charge of air pro rata.
Entering of throttle valve 6 and (unshowned) cylinder 3 injection valve 7 is set between the valve, is used for the fuel of given fuel quantity is ejected into the so-called air inlet pipeline section of air conveying system 4.Alternatively or additionally injection valve 7 is set directly on the cylinder body 3, being used for can direct fuel injection.
Coming to discharge section 8 since the gas of combustion of cylinder 3 by waste gas discharges.Discharge section 8 at waste gas exhaust gas oxygensensor 9 is set, it is measured the oxygen content of gas of combustion and corresponding λ signal is provided.The λ signal can determine whether the air/fuel mixture in cylinder 3 the insides for burning has reached stoichiometrical balance, and whether too much or the very few too much or very few charge of air of fuel perhaps is provided during burning.
If it is more to be engraved in the stoichiometrical air/fuel ratio of air ratio that needs inside the firing chamber of cylinder 3 when burning, then related to rare mixture.When stoichiometrical air/fuel ratio corresponding to the λ of numerical value 1 at the time greater than 1.If it is more that the stoichiometrical air/fuel ratio of fuel ratio inside the firing chamber that is positioned at cylinder 3 constantly of burning needs, then relate to the mixture of overrich, it provides by the λ value less than 1.
Engine system 1 is by control unit 10 operations.Control unit 10 is by different sensor acquisition system status parameters and the corresponding actuator that is used for explosive motor 2 operations of control.Control unit 10 for example obtains about in cylinder 3 the inside flow air amounts, namely about the data of charge of air, with the data about the λ value of transient state, it provides, air/fuel mixture overrich or rare excessively whether during cylinder 2 the insides burnings, perhaps whether stoichiometrical air/fuel ratio is 1.According to the system status parameters of engine system 1 and according to by the given driver's hope torque FWM in outside, controller 10 provides the control for the control of throttle valve position and injection valve 7.Correspondingly provide voltage in order to control throttle valve position, it is corresponding to the adjustment angle of determining of throttle valve 6.
Injection valve 7 is correspondingly by opening endurance control, wherein opens the endurance to be subordinated to the fuel quantity that will spray substantially.
Fig. 2 is illustrated in the function that realizes in the controller 10 particularly.Function block or in controller 10, realize as software and/or as hardware.In ventilating control piece 21 corresponding to obtaining the theoretical position D of throttle valve 6 by the driver by the travel given driver's hope torque FWM of pedal or other theoretical torque task of manipulation
SollIn Otto engine, the driver corresponds essentially to theoretical inflation F by the given driver's hope torque FWM of the pedal position that travels accordingly
Soll, it is directly changed into the theoretical position D of throttle valve 6 in ventilating control piece 21
Soll
At the relatively more theoretical inflation F in inflation adapter block 25 the insides
SollWith reality inflation F
IstAnd at theory inflation F
SollWith reality inflation F
IstBetween obtain to inflate accordingly correction value F when deviation occurring in known manner
Korr1And offer ventilating control piece 21, be used for correspondingly revising the control of throttle valve 6.If actual inflation F
IstLess than theory inflation F
Soll, then throttle valve 6 is opened.If actual inflation F
IstGreater than theory inflation F
Soll, then continue to close throttle valve 6.
Realize regulating air/fuel mixture by means of mixture regulating block 26.Adjusting can be stipulated proportional component and difference component.The adjusting of air/fuel mixture is with the 9 actual λ value Lambda that provide that popped one's head in by λ
IstFor the basis and be used for, air/fuel ratio is adjusted to by theoretical λ value Lambda
SollGiven air/fuel ratio.
Regulating parameter S in order to carry out the mixture conditioning period or to provide to inflate
F ü llungTo ventilating control device 21, perhaps provide the fuel adjusting parameter S
KraftstoffTo mixture computing block 23, in order to correspondingly regulate current actual λ value Lambda
IstTo theoretical λ value Lambda
Soll, during, the quadrature components of regulating by mixture is identified in the long-term variation in the engine system 1.Therefore mixture regulating block 26 constitutes like this, makes quadrature components that mixture regulates with remaining component, separate as ratio and difference component, and be delivered on the ventilating control piece 21 with mixture computing block 23 on.
If confirm that by the quadrature components that mixture is regulated air/fuel mixture is tending towards overrich (λ＜1), the corresponding integral parameter correction value K that acts as a fuel then
KorrOutput on the mixture computing block 23.But fuel correction value K
KorrBe furnished with symbol, it provides the fuel quantity that will spray, is the minimizing of theoretical fuel quantity.Regulation is exported fuel correction value K like this in mixture regulating block 26
Korr, only allow the fuel quantity that will spray in the minimizing of mixture computing block 23 the insides.
If confirm by integral value in another case, that air/fuel mixture was tending towards was rare (λ〉1), then be unlike in such given fuel correction value K in the present adaptation method
Korr, it increases theoretical fuel quantity, but another inflation correction value F is provided like this
Korr2Give ventilating control piece 21, the correction of throttle valve position is worked at closing direction.This point can be correspondingly by selecting another inflation correction value F
Korr2The symbol that is fit to realize.Can make the adaptive quadrature components of regulating with mixture of mixture in this way is that the basis only causes reducing the torque that provided.
By only allowing the instantaneous adaptive intervention that reduces to prevent, adaptively also may cause torque to increase.Guarantee in controller 10 the insides thus to prevent that the calculating owing to wrong from increasing the added security of torque.
If because the actual inflation F that wrong (for example mistake in computation, sensor or actuator function or the mistake in its incoming line inside controller) calculated in inflation collection block 22 the insides
IstIn air conveying system 4 the inside flow air quality, then use inflation adapter block 25 to cause less than in fact, throttle valve 6 continues to open.The charge of air that real realization is bigger is to cylinder 3 the insides of explosive motor 2 thus.Because fuel calculates the too little actual inflation F with mistake
IstBe the basis, at first output fuel very little.This point caused rare air/fuel mixture, this by λ probe 9 with λ value greater than 1 form detection.Different with the method for prior art, can not control fuel again for the fuel quantity that compensates very little by mixture regulating block 26, this may cause torque to increase, but intervenes in the ventilating control device, by adaptive another inflation correction value F
Korr2, it causes, and the throttle valve regulator correspondingly continues to cut out throttle valve 6.
Fuel correction value K during this method
KorrThe torque increase that keeps constant and prevent from causing owing to the fuel that increases is additional.Mixture regulate and mixture adaptive based on integral value, and it is adaptive and compensate it for the too little definite actual inflation F of conduct therefore to react on the inflation of inflating adapter block 25
IstReaction.Because neither increase actual charge of air at this, do not cause the increase of the fuel quantity that will spray, with the present different torques outputs that can not cause comparing with the driver's hope torque FWM by driver's expectation increase of method yet.
If because wrong, for example in capability error or the mistake in its incoming line of mistake in computation, actuator (for example injection valve) or the sensor of controller 10 the insides, cause fuel quantity to increase in mixture computing block 23 inside, wherein fuel quantity is greater than the actual inflation F of the fact
IstFuel quantity, be used for reaching the air/fuel ratio corresponding to theoretical λ value, air/fuel mixture overrich then is because comparing the too many fuel of injection with charge of air.Ventilating control device 21 is for this wrong not reaction.But mixture regulating block 26 is not by means of another inflation correction value F now
Korr2Increase the air stream that is transported to explosive motor 2, but by fuel correction value K
KorrAct on the fuel quantity that will spray with reducing.Another inflation correction value F
Korr2Do not change by this method.Thus mixture computing block 26 can primary boycott because the amount of fuel injected too much that the mistake in fuel metering causes and compensate this fuel quantity.Because still neither increase true charge of air at this, do not spray too many fuel quantity, with the present different torques that can not cause comparing with driver's hope torque FWM of driver's expectation increase of method yet.
Claims (7)
- One kind be used for to regulate and fit in explosive motor (2), especially in the method for the air/fuel ratio of the air/fuel mixture of Otto engine the inside, have following step:-actual λ value (Lambda is provided Ist), it provides current air/fuel ratio data, and theoretical λ value (Lambda is provided Soll), it provides desired air/fuel ratio data;-according to actual λ value (Lambda Ist) try to achieve corrected parameter, be used for regulating and adaptive actual λ value (Lambda Ist) to theoretical λ value (Lambda Soll),It is characterized in that described corrected parameter is according to actual λ value (Lambda Ist) and theoretical λ value (Lambda Soll) deviation corresponding to the inflation correction value (F of the parameter that is used for loading effect explosive motor (2) charge of air Korr2) or corresponding to the fuel correction value (K of the parameter that is used for explosive motor (2) fuel quantity that loading effect will spray Korr-).
- 2. if the method for claim 1, wherein actual λ value (Lambda Ist) greater than theoretical λ value (Lambda Soll), then as the inflation correction value (F of corrected parameter use for the parameter of loading effect explosive motor (2) charge of air Korr2).
- 3. method as claimed in claim 1 or 2, wherein, if actual λ value (Lambda Ist) less than theoretical λ value (Lambda Soll), then use the fuel correction value (K of the parameter of explosive motor (2) fuel quantity that loading effect will spray as corrected parameter Korr-).
- 4. as each described method in the claim 1 to 3, wherein select described corrected parameter like this, namely only allow to reduce fuel quantity or charge of air based on corrected parameter.
- One kind be used for to regulate and fit in explosive motor (2), especially at the device of the air/fuel ratio of the air/fuel mixture of Otto engine the inside, wherein this device is designed to, and is used for:-actual λ value (Lambda is provided Ist), it provides current air/fuel ratio data, and theoretical λ value (Lambda is provided Soll), it provides desired air/fuel ratio data;-according to actual λ value (Lambda Ist) try to achieve corrected parameter, be used for regulating and adaptive actual λ value (Lambda Ist) to theoretical λ value (Lambda Soll), wherein said corrected parameter is according to actual λ value and theoretical λ value (Lambda Soll) deviation corresponding to the inflation correction value of the parameter that is used for loading effect explosive motor (2) charge of air or corresponding to the fuel correction value of the parameter that is used for explosive motor (2) fuel quantity that loading effect will spray.
- 6. an engine system (1) comprising:-explosive motor (2);-for the adjustment prober (6) of adjusting the explosive motor charge of air;-for the adjustment prober (7) of adjusting the fuel quantity that will spray;-controller (10) is used for-actual λ value (Lambda is provided Ist), it provides current air/fuel ratio data, and theoretical λ value (Lambda is provided Soll), it provides desired air/fuel ratio data;-according to actual λ value (Lambda Ist) try to achieve corrected parameter, be used for regulating and adaptive actual λ value (Lambda Ist) to theoretical λ value (Lambda Soll), wherein said corrected parameter is according to actual λ value (Lambda Ist) and theoretical λ value (Lambda Soll) deviation corresponding to the inflation correction value of the parameter that is used for loading effect explosive motor (2) charge of air or corresponding to the fuel correction value of the parameter that is used for explosive motor (2) fuel quantity that loading effect will spray.
- 7. computer program, it contains program coding, and when at data processing unit being the executive routine coding, it is implemented as each described method in the claim 1 to 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010063119 DE102010063119A1 (en) | 2010-12-15 | 2010-12-15 | Method for regulating and adapting an air / fuel mixture in an internal combustion engine |
| DE102010063119.1 | 2010-12-15 | ||
| PCT/EP2011/070789 WO2012079935A1 (en) | 2010-12-15 | 2011-11-23 | Method for controlling and adapting an air/fuel mixture in an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103249933A true CN103249933A (en) | 2013-08-14 |
Family
ID=45023840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800602617A Pending CN103249933A (en) | 2010-12-15 | 2011-11-23 | Method for controlling and adapting an air/fuel mixture in an internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2652298A1 (en) |
| CN (1) | CN103249933A (en) |
| DE (1) | DE102010063119A1 (en) |
| WO (1) | WO2012079935A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471238A (en) * | 2014-06-11 | 2017-03-01 | 罗伯特·博世有限公司 | Method for analyzing and processing characteristic deviation |
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|---|---|---|---|---|
| US5438826A (en) * | 1992-10-31 | 1995-08-08 | Robert Bosch Gmbh | Method for adjusting the fuel/air mixture for an internal combustion engine after an overrun phase of operation |
| CN1143403A (en) * | 1994-12-30 | 1997-02-19 | 本田技研工业株式会社 | Fuel injection control device for IC engine |
| US20030221659A1 (en) * | 2002-06-04 | 2003-12-04 | Ford Global Technologies, Inc. | Overall scheduling of a lean burn engine system |
| CN1580527A (en) * | 2003-07-31 | 2005-02-16 | 日产自动车株式会社 | Engine exhaust gas cleaning apparatus |
| CN1978880A (en) * | 2005-12-05 | 2007-06-13 | 丰田自动车株式会社 | Air-fuel ratio control apparatus |
| CN101080565A (en) * | 2004-12-16 | 2007-11-28 | 丰田自动车株式会社 | Apparatus and method for controlling fuel injection of internal combustion engine, and internal combustion engine |
| CN101454556A (en) * | 2006-02-13 | 2009-06-10 | 欧陆汽车有限责任公司 | Method and device for operating an internal combustion engine having lambda control |
| CN101657626A (en) * | 2007-04-13 | 2010-02-24 | 丰田自动车株式会社 | Air-fuel ratio control device and air-fuel ratio control method for internal combustion engine |
-
2010
- 2010-12-15 DE DE201010063119 patent/DE102010063119A1/en not_active Withdrawn
-
2011
- 2011-11-23 CN CN2011800602617A patent/CN103249933A/en active Pending
- 2011-11-23 WO PCT/EP2011/070789 patent/WO2012079935A1/en active Application Filing
- 2011-11-23 EP EP11787683.9A patent/EP2652298A1/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438826A (en) * | 1992-10-31 | 1995-08-08 | Robert Bosch Gmbh | Method for adjusting the fuel/air mixture for an internal combustion engine after an overrun phase of operation |
| CN1143403A (en) * | 1994-12-30 | 1997-02-19 | 本田技研工业株式会社 | Fuel injection control device for IC engine |
| US20030221659A1 (en) * | 2002-06-04 | 2003-12-04 | Ford Global Technologies, Inc. | Overall scheduling of a lean burn engine system |
| CN1580527A (en) * | 2003-07-31 | 2005-02-16 | 日产自动车株式会社 | Engine exhaust gas cleaning apparatus |
| CN101080565A (en) * | 2004-12-16 | 2007-11-28 | 丰田自动车株式会社 | Apparatus and method for controlling fuel injection of internal combustion engine, and internal combustion engine |
| CN1978880A (en) * | 2005-12-05 | 2007-06-13 | 丰田自动车株式会社 | Air-fuel ratio control apparatus |
| CN101454556A (en) * | 2006-02-13 | 2009-06-10 | 欧陆汽车有限责任公司 | Method and device for operating an internal combustion engine having lambda control |
| CN101657626A (en) * | 2007-04-13 | 2010-02-24 | 丰田自动车株式会社 | Air-fuel ratio control device and air-fuel ratio control method for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471238A (en) * | 2014-06-11 | 2017-03-01 | 罗伯特·博世有限公司 | Method for analyzing and processing characteristic deviation |
| CN106471238B (en) * | 2014-06-11 | 2020-09-22 | 罗伯特·博世有限公司 | Method for evaluating deviations of a processing characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010063119A1 (en) | 2012-06-21 |
| EP2652298A1 (en) | 2013-10-23 |
| WO2012079935A1 (en) | 2012-06-21 |
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