CN101943070A - Control method of motorcycle engine electronic injection system open-loop air-fuel ratio - Google Patents
Control method of motorcycle engine electronic injection system open-loop air-fuel ratio Download PDFInfo
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- CN101943070A CN101943070A CN2010102609092A CN201010260909A CN101943070A CN 101943070 A CN101943070 A CN 101943070A CN 2010102609092 A CN2010102609092 A CN 2010102609092A CN 201010260909 A CN201010260909 A CN 201010260909A CN 101943070 A CN101943070 A CN 101943070A
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Abstract
The invention provides a control method of a motorcycle engine electronic injection system open-loop air-fuel ratio, aiming to solve the problems that the air-fuel ratio can not be automatically regulated along with the performance difference in the production process and the state change after use because the motorcycle engine closed-loop control electronic injection system has no regulation mechanism for the open-loop oil injection amount in the prior art. The control method of the invention comprises the following steps: predetermining or calculating the eta learning value corrected value of the learning correction factor of a certain operating point in different gear open-loop states of a motorcycle engine; dividing operating areas according to the eta learning value correction value of each operating point; and adjusting the oil injection amount when the motorcycle runs in the corresponding operating area by adopting the eta learning value correction value. The beneficial effect of the invention is as follows: when entering into the open-loop operation, the motorcycle engine can regulate the oil injection amount to be about the set value to lead the engine to be kept at the better working condition.
Description
Technical field
The present invention relates to a kind of controlling method of motorcycle engine electric spray control system air fuel ratio, specially refer to a kind of controlling method of motorcycle engine electric spray control system open loop situations air fuel ratio.
Background technique
At present, the motorcycle engine electric spray control system is after installing lambda sensor additional on the exhaust passage, by the oxygen content in the identification of Engine exhaust and feed back to electric injection system controller (being designated hereinafter simply as ECU), ECU enters the fuel injection quantity of motor according to the oxygen content adjustment in the exhaust, adjust the ratio (abbreviating air fuel ratio as) of engine air and fuel thus, make engine operation near theoretical air fuel ratio, with discharging that reduces pollutant and the transformation efficiency that guarantees triple-effect catalytic unit.Yet, the employed lambda sensor of motorcycle electric spraying control system mostly is the switch type lambda sensor, as its name suggests, this lambda sensor can only react (so-called " opening " or " pass ") to some extent when air fuel ratio is dense partially or rare partially, and can't react to some extent the dense partially or rare partially degree of air fuel ratio.Therefore, when the oxygen content substantial deviation in the exhaust, this lambda sensor can't be adjusted fuel injection quantity by ECU.Usually lambda sensor can be referred to as the closed loop state by the working state that ECU adjusts fuel injection quantity, lambda sensor can't be referred to as open loop situations by the working state that ECU adjusts fuel injection quantity.But, motorcycle engine is not all to require engine operation under the various operating modes near theoretical air fuel ratio, for example at starting a cold engine and warm-up period, the temperature of motor does not reach and enters before the closed loop state requires, and air fuel ratio should be in the stability of dense partially state to guarantee to burn; At full load and anxious boost phase,, require air fuel ratio to be in dense partially state equally in order to guarantee good power character.In view of this, motorcycle engine normally is operated in closed loop state or open loop situations, and between is changed mutually.
In the motorcycle development process, factory usually just carries out the coupling of motor and car load at the motorcycle of several in certain vehicle or small lot, promptly on the silencing apparatus of coupling sample car, install linear oxygen sensors additional, detect the air fuel ratio of coupling sample car by linear oxygen sensors in open loop situations, thereby set Control Parameter comparatively exactly, control coupling sample car is in zone of reasonableness in the air fuel ratio of open loop situations, makes it be operated in preferable states.And have very big scattered error between the motorcycle of producing in enormous quantities, on behalf of motorcycle, the motorcycle coupling of several or small lot can not by the gross to work under preferable air fuel ratio state.In addition, in the using process of motorcycle, motor can progressively produce the variation (as: engine aging, obstruction, decrease in efficiency etc.) of state, adopt the Control Parameter of original coupling, air fuel ratio in the time of just can not guaranteeing the motorcycle operation is in zone of reasonableness, be the change of state in the using process of the scattered error of match parameter incompatibility motorcycle and motorcycle, thereby make discharging, oil consumption and the power of motorcycle that abominable variation take place.In these cases, if engine operation is under the closed loop control state, ECU is by the feedback signal of lambda sensor, adjust air fuel ratio in real time and can adapt to the scattered error of the generation in the vehicle manufacturing and the change of state of using the back to occur, the air fuel ratio of car load is remained near the chemically correct fuel, to reduce the transformation efficiency of discharging and assurance triple-effect catalytic unit.But under open loop situations, can not utilize the feedback signal of lambda sensor, can not adjust air fuel ratio in good time with scattered error that adapts to the generation in the vehicle manufacturing and the change of state of using the back to occur.
Summary of the invention
There is not regulation mechanism for solving prior art motorcycle engine closed loop control electric injection system open loop situations fuel injection quantity, can not adjust the problem of air fuel ratio with the change of state after performance scattered error that occurs in the production process and the use voluntarily, the present invention proposes a kind of controlling method of motorcycle engine electric spray system open loop situations air fuel ratio.The study correction factor η of motorcycle engine at a certain operating point of different gear open loop situations measured or calculated to the controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention in advance
The learning value correctionValue, according to the η of each operating point
The learning value correctionValue is divided the operating mode zone, adopts η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when corresponding operating mode area operation, the operating point of described motor is the operation point of mean engine at a certain rotating speed and load, described operating mode zone is that mean engine is worked in a certain rotating speed and load range, and described engine load is meant the aperture of engine air throttle.
The study correction factor η of motorcycle engine at a certain operating point of different gear open loop situations measured or calculated to the controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention in advance
The learning value correctionValue, comprise, control motorcycle engine electric spray control system forces to enter the closed loop learning state when motor enters open loop situations, control motor gear arrives inferior the most high-grade respectively at zero span, control engine air throttle aperture makes engine speed be in closed loop state rotating speed CLV ceiling limit value n_cl_max near the stable operation mid point between the engine peak speed n_max, measures the η of the corresponding rotating speed operating point from neutral to inferior top gear thus
The learning value correctionValue is again according to the η of neutral to each operating point of time top gear
The learning value correctionThe mean value of value or weighted mean value obtain the η of top gear operating point
The learning value correctionValue.
Further, the alleged control motorcycle engine electric spray of the controlling method control system of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention forces to enter the closed loop learning state when motor enters open loop situations, comprise, electric injection system controller ECU cancels the ceiling restriction of the rotating speed and the load of original closed loop control setting state, simultaneously, target air-fuel ratio correction factor η
1/ λValue is 1.
The controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention is according to the η of each operating point
The learning value correctionValue is divided the operating mode zone, comprises that establishing motorcycle gear number is N, comprises neutral gear or zero span, by measuring or calculate acquisition N operating point, i.e. P
0, P
1, P
2... P
N-1The η of operating point
The learning value correctionValue, the load value of each operating point correspondence is respectively L
0, L
1, L
2... L
N-1, the mean value of every adjacent two load values is operating mode area limit line, i.e. a L
01=(L
0+ L
1)/2, L
02=(L
1+ L
2)/2....... tries to achieve N-1 bar operating mode area limit line by that analogy, then, with 0 to L
01Between be divided into operating mode zone, i.e. a G
01L
01To L
02Between be divided into operating mode zone, i.e. a G
02... by that analogy, open loop situations is divided into N operating mode zone.
The controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention adopts η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when open loop situations is moved, and comprises, with operating point P
0, P
1, P
2... P
Nη
The learning value correctionValue and operating mode zone G
01, G
02... G
0NCorresponding one by one, when entering a certain operating mode area operation of open loop situations, calls by motor the η in this operating mode zone automatically
The learning value correctionValue is revised fuel injection quantity, at this moment, and the total fuel injection quantity Q of motor
AlwaysCalculate by following formula:
Q
Always=Q
Substantially* η
Transient state* η
1/ λ* η
02 revises* η
The learning value correction
Wherein:
Q
SubstantiallyBe the basic fuel injection amount according to air inflow and chemically correct fuel calculating of motor at this operating point;
η
Transient stateBeing fuel injection quantity transient state correction factor, is that manipulation factor according to the driver causes when engine transient changes the correction to Engine Injection Mass, η when engine steady state is moved
Transient stateCoefficient is 1;
η
1/ λBe the target air-fuel ratio correction factor, at closed loop operating mode zone η
1/ λCoefficient is 1, at open loop operating mode zone η
1/ λCoefficient value is 1.1～1.15;
η
02 revisesBeing the closed loop correction factor, is mean engine when operating in the closed loop control state, the correction value of the real-time fuel injection quantity that calculates according to the feedback signal of lambda sensor; η when the closed loop state
02 revisesCoefficient changes η when open loop situations near 1
02 revisesCoefficient is 1;
η
The learning value correctionBeing fuel injection quantity study correction factor, is that current motor of expression and electric injection system are in a certain operating mode zone and the motor of the state of demarcation and the correction value of the difference between the electric injection system.
The beneficial effect of the controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention is fuel injection quantity can be adjusted to when motorcycle engine enters the open loop situations operation near the setting value, make motor remain at preferable working state, strengthened the adaptive capacity of electric spray control system, satisfied power character, the Economy requirement of batch product motorcycle better the change of state that occurs in the performance scattered error that produces in the motorcycle production process and the using process.
Description of drawings
Accompanying drawing 1 is the operating mode schematic representation with motorcycle engine operation of 6 gears (comprising neutral gear or zero span).
Be further described below in conjunction with the controlling method of the drawings and specific embodiments motorcycle engine electric spray system open loop situations air fuel ratio of the present invention.
Embodiment
Accompanying drawing 1 is the operating mode schematic representation with motorcycle engine operation of 6 gears (comprising neutral gear or zero span), and among the figure, abscissa is an engine speed, and y coordinate is an engine load.As seen from the figure, the tetragonal operating mode zone that is made of n_idle, n_cl_max, L0, L_cl_max is the closed loop state of so-called motor.At the closed loop state, lambda sensor can be adjusted fuel injection quantity by ECU, makes engine operation near air fuel ratio remains on chemically correct fuel, with discharging that reduces pollutant and the transformation efficiency that guarantees triple-effect catalytic unit.At this quadrilateral is open loop situations to maximum speed n_max and the formed zone of maximum load L5 in addition.When motor operated in open loop situations, lambda sensor can't be adjusted fuel injection quantity by ECU, and therefore, motor can not guarantee that it is operated in preferable states.Usually, motor is in normal conversion mutually between closed loop control state or open loop situations in service.
There is not regulation mechanism for solving prior art motorcycle engine closed loop control electric injection system open loop situations fuel injection quantity, can not adjust the problem of air fuel ratio with the change of state after performance scattered error that occurs in the production process and the use voluntarily, the present invention proposes a kind of controlling method of motorcycle engine electric spray system open loop situations air fuel ratio.The study correction factor η of motorcycle engine at a certain operating point of different gear open loop situations measured or calculated to the controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention in advance
The learning value correctionValue, according to the η of each operating point
The learning value correctionValue is divided the operating mode zone, adopts η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when corresponding operating mode area operation, the operating point of described motor is the operation point of mean engine at a certain rotating speed and load, described operating mode zone is that mean engine is worked in a certain rotating speed and load range, and described engine load is meant the aperture of engine air throttle.
The study correction factor η of motorcycle engine at a certain operating point of different gear open loop situations measured or calculated to the controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention in advance
The learning value correctionValue, comprise, control motorcycle engine electric spray control system forces to enter the closed loop learning state when motor enters open loop situations, control motor gear arrives inferior the most high-grade respectively at zero span, control engine air throttle aperture makes engine speed be in closed loop state rotating speed CLV ceiling limit value n_cl_max near the stable operation mid point between the engine peak speed n_max, measures the η of the corresponding rotating speed operating point from neutral to inferior top gear thus
The learning value correctionValue is again according to the η of neutral to each operating point of time top gear
The learning value correctionThe mean value of value or weighted mean value obtain the η of top gear operating point
The learning value correctionValue.In order to make motor also have learning functionality in open loop situations, when needing the motorcycle engine electric spray control system when motor enters open loop situations, to force to enter the closed loop learning state, comprise, electric injection system controller ECU cancels the ceiling restriction of the rotating speed and the load of original closed loop control setting state, simultaneously, target air-fuel ratio correction factor η
1/ λValue is 1.
K0, K1, K2, K3, K4, K5 curve represent that respectively motorcycle engine is in neutral, 1 retaining, 2 retainings, 3 retainings, 4 retainings, the 5 retainings curve that the operating point of (except the neutral) process connects into that the time at the uniform velocity travels on level road in the accompanying drawing 1; P0, P1, P2, P3, P4, P5 point are respectively on K0, K1, K2, K3, K4, the K5 curve, engine speed is in the operating point of closed loop control rotating speed CLV ceiling limit value n_cl_max near the stable operation mid point between the engine peak speed n_max, and, by measuring or calculate the η that has obtained P0, P1, P2, P3, P4, P5 operating point in advance
The learning value correctionValue.
By figure also as can be known, the load value of operating point P0, P1, P2, P3, P4, P5 correspondence is respectively L
0, L
1, L
2, L
3, L
4, L
5, adopting the mean value of every adjacent two load values is that an operating mode area limit line can be tried to achieve 5 operating mode area limit lines, i.e. L
01=(L
0+ L
1)/2, L
02=(L
1+ L
2)/2, L
03=(L
2+ L
3)/2, L
04=(L
3+ L
4)/2, L
05=(L
4+ L
5)/2, then, with 0 to L
01Between be divided into operating mode zone, i.e. a G
01L
01To L
02Between be divided into operating mode zone, i.e. a G
02L
02To L
03Between be divided into operating mode zone, i.e. a G
03L
03To L
04Between be divided into operating mode zone, i.e. a G
04L
04To L
05Between be divided into operating mode zone, i.e. a G
05L
05More than be operating mode zone, i.e. a G
06η with operating point P0, P1, P2, P3, P4 and P5
The learning value correctionValue and operating mode zone G
01, G
02, G
03, G
04, G
05And G
06Corresponding one by one, i.e. operating mode zone G
01η
The learning value correctionValue is the η of operating point P0
The learning value correctionValue, operating mode zone G
02η
The learning value correctionValue is the η of operating point P1
The learning value correctionValue, by that analogy.
The controlling method of motorcycle engine electric spray system open loop situations air fuel ratio of the present invention adopts η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when open loop situations is moved, and comprises, with the η of operating point P0, P1, P2, P3, P4 and P5
The learning value correctionValue and operating mode zone G
01, G
02, G
03, G
04, G
05And G
06Corresponding one by one, i.e. operating mode zone G
01η
The learning value correctionValue is the η of operating point P0
The learning value correctionValue, operating mode zone G
02η
The learning value correctionValue is the η of operating point P1
The learning value correctionValue, by that analogy; When entering a certain operating mode area operation of open loop situations, calls by motor the η in this operating mode zone automatically
The learning value correctionFuel injection quantity is revised, at this moment, the total fuel injection quantity Q of motor
AlwaysCalculate by following formula:
Q
Always=Q
Substantially* η
Transient state* η
1/ λ* η
02 revises* η
The learning value correction
Wherein:
Q
SubstantiallyBe the basic fuel injection amount according to air inflow and chemically correct fuel calculating of motor at this operating point;
η
Transient stateBeing fuel injection quantity transient state correction factor, is that manipulation factor according to the driver causes when engine transient changes the correction to Engine Injection Mass, η when engine steady state is moved
Transient stateCoefficient is 1;
η
1/ λBe the target air-fuel ratio correction factor, at closed loop operating mode zone η
1/ λCoefficient is 1, at open loop operating mode zone η
1/ λCoefficient value is 1.1～1.15;
η
02 revisesBeing the closed loop correction factor, is mean engine when operating in the closed loop control state, the correction value of the real-time fuel injection quantity that calculates according to the feedback signal of lambda sensor; η when the closed loop state
02 revisesCoefficient changes η when open loop situations near 1
02 revisesCoefficient is 1;
η
The learning value correctionBeing fuel injection quantity study correction factor, is that current motor of expression and electric injection system are in a certain operating mode zone and the motor of the state of demarcation and the correction value of the difference between the electric injection system.
For example, enter G when motorcycle engine
03During the operating mode zone, the engine electric spray control system can be called the η of P2 operating point automatically
The learning value correctionFuel injection quantity is revised; When motorcycle engine enters G again
01During the operating mode zone, the engine electric spray control system can be called the η of P0 operating point automatically
The learning value correctionFuel injection quantity is revised.
Claims (5)
1. the controlling method of a motorcycle engine electric spray system open loop situations air fuel ratio is characterized in that: measure or calculate the study correction factor η of motorcycle engine at a certain operating point of different gear open loop situations in advance
The learning value correctionValue, according to the η of each operating point
The learning value correctionValue is divided the operating mode zone, adopts η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when corresponding operating mode area operation, the operating point of described motor is the operation point of mean engine at a certain rotating speed and load, described operating mode zone is that mean engine is worked in a certain rotating speed and load range, and described engine load is meant the aperture of engine air throttle.
2. according to the controlling method of the described motorcycle engine electric spray system open loop situations of claim 1 air fuel ratio, it is characterized in that: measure or calculate the study correction factor η of motorcycle engine in advance at a certain operating point of different gear open loop situations
The learning value correctionValue, comprise, control motorcycle engine electric spray control system forces to enter the closed loop learning state when motor enters open loop situations, control motor gear arrives inferior the most high-grade respectively at zero span, control engine air throttle aperture makes engine speed be in closed loop state rotating speed CLV ceiling limit value n_cl_max near the stable operation mid point between the engine peak speed n_max, measures the η of the corresponding rotating speed operating point from neutral to inferior top gear thus
The learning value correctionValue is again according to the η of neutral to each operating point of time top gear
The learning value correctionThe mean value of value or weighted mean value obtain the η of top gear operating point
The learning value correctionValue.
3. according to the controlling method of the described motorcycle engine electric spray system open loop situations of claim 2 air fuel ratio, it is characterized in that: control motorcycle engine electric spray control system forces to enter the closed loop learning state when motor enters open loop situations, comprise, electric injection system controller ECU cancels the ceiling restriction of the rotating speed and the load of original closed loop control setting state, simultaneously, target air-fuel ratio correction factor η
1/ λValue is 1.
4. according to the controlling method of the described motorcycle engine electric spray system open loop situations of claim 1 air fuel ratio, it is characterized in that: according to the η of each operating point
The learning value correctionValue is divided the operating mode zone, comprises that establishing motorcycle gear number is N, comprises neutral gear or zero span, by measuring or calculate acquisition N operating point, i.e. P
0, P
1, P
2... P
N-1The η of operating point
The learning value correctionValue, the load value of each operating point correspondence is respectively L
0, L
1, L
2... L
N-1, the mean value of every adjacent two load values is operating mode area limit line, i.e. a L
01=(L
0+ L
1)/2, L
02=(L
1+ L
2)/2....... tries to achieve N-1 bar operating mode area limit line by that analogy, then, with 0 to L
01Between be divided into operating mode zone, i.e. a G
01L
01To L
02Between be divided into operating mode zone, i.e. a G
02... by that analogy, open loop situations is divided into N operating mode zone.
5. according to the controlling method of the described motorcycle engine electric spray system open loop situations of claim 1 air fuel ratio, it is characterized in that: adopt η
The learning value correctionValue is adjusted the fuel injection quantity of motorcycle when open loop situations is moved, and comprises, with operating point P
0, P
1, P
2... P
N- 1η
The learning value correctionValue and operating mode zone G
01, G
02... G
0NCorresponding one by one, when entering a certain operating mode area operation of open loop situations, calls by motor the η in this operating mode zone automatically
The learning value correctionValue is revised fuel injection quantity, at this moment, and the total fuel injection quantity Q of motor
AlwaysCalculate by following formula:
Q
Always=Q
Substantially* η
Transient state* η
1/ λ* η
02 revises* η
The learning value correction
Wherein:
Q
SubstantiallyBe the basic fuel injection amount according to air inflow and chemically correct fuel calculating of motor at this operating point;
η
Transient stateBeing fuel injection quantity transient state correction factor, is that manipulation factor according to the driver causes when engine transient changes the correction to Engine Injection Mass, η when engine steady state is moved
Transient stateCoefficient is 1;
η
1/ λBe the target air-fuel ratio correction factor, at closed loop operating mode zone η
1/ λCoefficient is 1, at open loop operating mode zone η
1/ λCoefficient value is 1.1～1.15;
η
02 revisesBeing the closed loop correction factor, is mean engine when operating in the closed loop control state, the correction value of the real-time fuel injection quantity that calculates according to the feedback signal of lambda sensor; η when the closed loop state
02 revisesCoefficient changes η when open loop situations near 1
02 revisesCoefficient is 1;
η
The learning value correctionBeing fuel injection quantity study correction factor, is that current motor of expression and electric injection system are in a certain operating mode zone and the motor of the state of demarcation and the correction value of the difference between the electric injection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010260909 CN101943070B (en) | 2010-08-24 | 2010-08-24 | Control method of motorcycle engine electronic injection system open-loop air-fuel ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010260909 CN101943070B (en) | 2010-08-24 | 2010-08-24 | Control method of motorcycle engine electronic injection system open-loop air-fuel ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943070A true CN101943070A (en) | 2011-01-12 |
| CN101943070B CN101943070B (en) | 2013-01-02 |
Family
ID=43435240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010260909 Expired - Fee Related CN101943070B (en) | 2010-08-24 | 2010-08-24 | Control method of motorcycle engine electronic injection system open-loop air-fuel ratio |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542589A (en) * | 2016-06-27 | 2018-01-05 | 丰田自动车株式会社 | The method of the A/F ratio controller of internal combustion engine and the air-fuel ratio for controlling internal combustion engine |
| CN110805498A (en) * | 2019-11-11 | 2020-02-18 | 奇瑞汽车股份有限公司 | Engine fuel correction control method |
| CN110905676A (en) * | 2019-12-04 | 2020-03-24 | 潍柴动力股份有限公司 | Engine performance optimization method and device and electronic control unit |
| CN112392614A (en) * | 2019-08-13 | 2021-02-23 | 联合汽车电子有限公司 | Multi-interval self-learning method and device for conversion window of engine catalyst |
| CN114810393A (en) * | 2022-05-13 | 2022-07-29 | 中国第一汽车股份有限公司 | Correction method, system, electronic device and storage medium for controlling air-fuel ratio of whole vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4707985A (en) * | 1985-09-12 | 1987-11-24 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
| US4723408A (en) * | 1985-09-10 | 1988-02-09 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
| JP2006097510A (en) * | 2004-09-29 | 2006-04-13 | Nissan Motor Co Ltd | Air-fuel ratio control device of engine |
| DE102006035478A1 (en) * | 2005-12-05 | 2007-07-19 | Denso Corp., Kariya | Control device for an air-fuel ratio |
| CN101182810A (en) * | 2006-11-14 | 2008-05-21 | 珠海市绿能达科技有限公司 | Gas vehicle multi-dots sequency spraying electric control unit |
-
2010
- 2010-08-24 CN CN 201010260909 patent/CN101943070B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4723408A (en) * | 1985-09-10 | 1988-02-09 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
| US4707985A (en) * | 1985-09-12 | 1987-11-24 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
| JP2006097510A (en) * | 2004-09-29 | 2006-04-13 | Nissan Motor Co Ltd | Air-fuel ratio control device of engine |
| DE102006035478A1 (en) * | 2005-12-05 | 2007-07-19 | Denso Corp., Kariya | Control device for an air-fuel ratio |
| CN101182810A (en) * | 2006-11-14 | 2008-05-21 | 珠海市绿能达科技有限公司 | Gas vehicle multi-dots sequency spraying electric control unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542589A (en) * | 2016-06-27 | 2018-01-05 | 丰田自动车株式会社 | The method of the A/F ratio controller of internal combustion engine and the air-fuel ratio for controlling internal combustion engine |
| CN107542589B (en) * | 2016-06-27 | 2020-11-06 | 丰田自动车株式会社 | Air-fuel ratio controller for internal combustion engine and method for controlling air-fuel ratio of internal combustion engine |
| CN112392614A (en) * | 2019-08-13 | 2021-02-23 | 联合汽车电子有限公司 | Multi-interval self-learning method and device for conversion window of engine catalyst |
| CN110805498A (en) * | 2019-11-11 | 2020-02-18 | 奇瑞汽车股份有限公司 | Engine fuel correction control method |
| CN110905676A (en) * | 2019-12-04 | 2020-03-24 | 潍柴动力股份有限公司 | Engine performance optimization method and device and electronic control unit |
| CN110905676B (en) * | 2019-12-04 | 2022-07-19 | 潍柴动力股份有限公司 | Engine performance optimization method and device and electronic control unit |
| CN114810393A (en) * | 2022-05-13 | 2022-07-29 | 中国第一汽车股份有限公司 | Correction method, system, electronic device and storage medium for controlling air-fuel ratio of whole vehicle |
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| Publication number | Publication date |
|---|---|
| CN101943070B (en) | 2013-01-02 |
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