CN112253322A - Engine control method based on oil rail pressure sensor fault - Google Patents
Engine control method based on oil rail pressure sensor fault Download PDFInfo
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- CN112253322A CN112253322A CN202011123385.2A CN202011123385A CN112253322A CN 112253322 A CN112253322 A CN 112253322A CN 202011123385 A CN202011123385 A CN 202011123385A CN 112253322 A CN112253322 A CN 112253322A
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- rail pressure
- oil
- fault
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- pressure sensor
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Classifications
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/401—Controlling injection timing
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/406—Electrically controlling a diesel injection pump
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
- F02D2041/223—Diagnosis of fuel pressure sensors
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/227—Limping Home, i.e. taking specific engine control measures at abnormal conditions
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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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses an engine control method based on oil rail pressure sensor faults, which is characterized by comprising the following steps: when the oil rail pressure sensor fails, the high-pressure oil pump is closed, the oil rail pressure closed-loop control program is quitted, the current oil rail pressure is controlled to be reduced to the target oil rail pressure in the failure period, the oil injection process is controlled to be completed in the air intake stroke, and the output torque of the engine is reduced. The engine is in a limp-home mode through the control process, so that the performance of the engine is limited, and the normal operation of the engine is ensured.
Description
Technical Field
The invention relates to the technical field of engine control, in particular to an engine control method based on faults of an oil rail pressure sensor.
Background
The vehicle is broken down when the vehicle is in driving, which may cause serious safety risk and easily cause customer complaints, and even the condition that the customer extremely maintains right and requires vehicle returning can occur, which affects the brand image of the company. For a high-pressure direct injection engine, a fuel rail pressure sensor is one of the key components, and when the fuel rail pressure sensor fails, if the fuel rail pressure sensor is not properly controlled, the vehicle cannot be started or stalled during running.
In the prior art, when an oil rail pressure sensor fails, closed-loop control of oil rail pressure is closed, and torque is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method.
In order to achieve the above object, the present invention provides an engine control method based on a fault of an oil rail pressure sensor, which is characterized in that: when the oil rail pressure sensor has a fault, the high-pressure oil pump is closed, the oil rail pressure closed-loop control program is quitted, the transition oil rail pressure in the fault period is estimated, the oil injection quantity in the fault period is determined, the oil injection process is controlled to be completed in the air intake stroke, and the output torque of the engine is reduced.
Further, the method for closing the high-pressure oil pump comprises the steps of controlling the low side of a flow control valve of the high-pressure oil pump to be at a high level; a method of exiting the rail pressure closed-loop control routine includes controlling a target duty cycle of the flow control valve to 0.
Further, the method for estimating the fault-period transition oil rail pressure comprises the step of gradually reducing the fault-period transition oil rail pressure from the target oil rail pressure which is not in fault at the fault moment to the target oil rail pressure in the fault period.
Further, the method for estimating the transition oil rail pressure in the fault period comprises the step of carrying out low-pass filtering processing according to the target oil rail pressure which is not in fault at the moment when the fault occurs and the target oil rail pressure in the fault period to obtain the transition oil rail pressure in the fault period.
Further, the method for determining the target fuel rail pressure without the fault comprises the step of calibrating and obtaining the target fuel rail pressure without the fault according to the engine speed and the load when the fuel rail pressure sensor does not have the fault.
Further, the method for determining the target oil rail pressure in the fault period comprises the step of calibrating according to the engine speed and the load after the oil rail pressure sensor is not in fault.
Further, the fault period transition rail pressure PBkup(n) is
PBkup(n)＝(PrailsensBkup-PBkup(n-1))*(1-K)+PBkup(n-1)*K
Wherein, PrailsensBkupIs a fault period target rail pressure; pBkup(n-1) the fault period transition oil rail pressure of the previous calculation period, wherein the initial value is the target oil rail pressure without fault at the fault moment; and k is a filter coefficient which is obtained according to the engine speed calibration.
Further, the method for determining the output torque of the engine after the fault comprises the step of calibrating according to the rotating speed of the engine.
Further, a method of controlling completion of an injection event during an intake stroke includes adjusting a start angle of injection and increasing a maximum limit on a pulsewidth of injection.
Further, the method for determining the starting angle of oil injection comprises the steps of keeping the enrichment factor of oil injection unchanged and continuously increasing the starting angle of oil injection under the condition that the oil injection process is finished in the air intake stroke, wherein the corresponding starting angle of oil injection is obtained when the air-fuel ratio is the minimum value.
The invention has the beneficial effects that: when the oil rail pressure sensor fails, the engine is in a limp mode by exiting an oil rail pressure closed-loop control program, reducing target oil rail pressure, controlling the oil injection process to be completed in an intake stroke, reducing the output torque of the engine and the like, so that the performance of the engine is limited, and the normal operation of the engine is ensured.
Detailed Description
The following detailed description is provided to further explain the claimed embodiments of the present invention in order to make it clear for those skilled in the art to understand the claims. The scope of the invention is not limited to the following specific examples. It is intended that the scope of the invention be determined by those skilled in the art from the following detailed description, which includes claims that are directed to this invention.
When the ECU does not detect that the oil rail pressure sensor fails, the ECU controls the low side of the flow control valve to be at a low level, the high-pressure oil pump enables the high-pressure oil pump and enters an oil rail pressure closed-loop control program, the actual oil rail pressure is equal to the target oil rail pressure which does not fail by controlling the target duty ratio of the flow control valve, and the target oil rail pressure which does not fail refers to the target oil rail pressure when the oil rail pressure sensor does not fail.
In the oil rail pressure closed-loop control program, firstly, the feedforward control duty ratio of the flow control valve is determined for feedforward control, and the feedforward control duty ratio F of the flow control valvefeedbackIs composed of
Ffeedback＝(f1(Neng,Ptarget)+Pinjdrop/Pelasticity*Vrailvol/Vpumpvol
Wherein f is1(Neng,Rrho) Volume change deviations for different engine speeds and target rail pressures, which are obtained by calibrating the engine speed and the target rail pressure without failure, are detailed in table 1; pinjdropThe pressure of the oil injection rail for the next oil pumping cycle; pelasticityThe fuel oil elastic pressure is 955Pa in the embodiment at normal temperature and normal pressure; vrailvol68.03ml in this example for the volume of the oil rail; vpumpvolThe maximum oil injection volume of the high-pressure oil pump is 0.21979ml in the embodiment.
TABLE 1 volume change deviation calibration chart
Then, PI control is carried out according to the difference value between the target oil rail pressure without fault and the actual oil rail pressure and the feedforward control duty ratio of the flow control valve, so that the actual oil rail pressure is equal to the target oil rail pressure without fault, and the target duty ratio F of the current flow control valve during PI controldsrd(n) is
Fdsrd(n)＝Ffeedback(n)+(Ptarget(n)-Pact(n))*Kp(n)+(Ptarget(n-1)-Pact(n))*Ki(n)
Wherein, Ffeedback(n) is the current flow control valve feedforward control duty cycle; ptarget(n) is the current target rail pressure without fault; ptarget(n-1) target rail pressure without fault, P, of last calculation cycleact(n) is the current actual rail pressure, Kp(n) is the current P term, KiAnd (n) is the current I item.
P term Kp(n) is obtained according to the difference value between the target oil rail pressure and the actual oil rail pressure, and the calculation formula is as follows:
Kp(n)＝(Ptarget(n)-Pact(n))*f2(Neng)*f3(Ptarget(n),Tfuel)
wherein f is2(Neng) The engine speed is based on a partial table P, and the detailed table is shown in a table 2; f. of3(Ptarget(n),Tfuel) The details are shown in table 3 for a table P based on actual rail pressure and oil temperature.
TABLE 2 engine speed-based Pmin
| Engine speed rpm | 200 | 400 | 600 | 750 | 4000 | 5000 | 6000 |
| f2(Neng)％/MPa | 2 | 1.5 | 1 | 1 | 0.88 | 0.75 | 0.5 |
TABLE 3 actual oil rail pressure and oil temperature based P sub-table
I item Ki(n) is obtained according to the change rate of the target oil rail pressure, and the calculation formula is as follows:
Ki(n)＝(Ptarget(n)-Ptarget(n-1))*f4(Neng)*f5(Ptarget(n),Tfuel)
wherein f is4(Neng) The engine speed is based on the I branch table, and the details are shown in the table 4; f. of5(Ptarget(n),Tfuel) See table 5 for table I based on actual rail pressure and oil temperature.
TABLE 4 Engine speed-based IDLE TABLE
| Engine speed rpm | 200 | 400 | 600 | 750 | 4000 | 5000 | 6000 |
| f4(Neng)％/MPa | 1 | 1 | 1 | 1 | 0.7 | 0.53 | 0.35 |
TABLE 5 actual rail pressure and oil temperature based I sub-table
The target rail pressure without fault is obtained according to the engine speed and load calibration, and is detailed in table 6.
Meter 6 calibration meter for pressure of non-fault target oil rail
When the oil rail pressure sensor fails, firstly, controlling the low side of a flow control valve of the high-pressure oil pump to be at a high level, and closing the high-pressure oil pump; and controlling the target duty ratio of the flow control valve to be 0, so as to quit the closed-loop control program of the oil rail pressure. And then, the following three measures are used for ensuring that the vehicle safely runs under the fault condition and does not flameout, so that the engine is in a limp mode, the performance of the engine is limited, and the normal operation of the engine is ensured.
The first measure is as follows: and predicting the transition oil rail pressure in the fault period and determining the fuel injection quantity in the fault period. After a fault occurs, the current oil rail pressure can be automatically and gradually reduced from the target oil rail pressure without the fault at the fault moment to the target oil rail pressure in the fault period, the target oil rail pressure in the fault period refers to the oil rail pressure output by an electric fuel pump in a fuel tank when a high-pressure oil rail pressure sensor fails, and the method for estimating the current oil rail pressure is that low-pass filtering processing is carried out according to the target oil rail pressure without the fault at the fault moment and the target oil rail pressure in the fault period to obtain transition oil rail pressure P in the fault periodBkup(n) transition oil rail pressure P during failureBkupAnd (n) gradually transitioning to the target oil rail pressure in the fault period, and determining the fuel injection quantity in the fault period according to the transition oil rail pressure in the current fault period.
In this embodiment, the fault period transition rail pressure PBkup(n) is
PBkup(n)＝(PrailsensBkup-PBkup(n-1))*(1-K)+PBkup(n-1)*K
Wherein, PrailsensBkupThe target oil rail pressure in the failure period is obtained according to the engine speed and load calibration and is detailed in a table 7; pBkup(n-1) the fault period transition oil rail pressure of the previous calculation period, wherein the initial value is the target oil rail pressure without fault when the fault occurs; and k is a filter coefficient which is obtained by calibrating the engine speed and is detailed in table 8.
Meter 7 calibration meter for target oil rail pressure in fault period
TABLE 8 calibration chart for filter coefficients
| Engine speed rpm | 600 | 1000 | 1500 | 2000 | 2500 | 3000 |
| Filter coefficient k | 0.84 | 0.44 | 0.2 | 0.08 | 0.02 | 0.02 |
The second measure is as follows: the initial angle of oil injection is increased and the maximum limit value of the pulse width of oil injection is increased, so that the oil injection process is completed in the intake stroke. When the oil rail pressure is reduced, the oil injection pulse width is increased, and meanwhile, the pressure in the compression stroke cylinder is higher, and the situation that fuel cannot enter the cylinder exists, so that the oil injection starting angle and the maximum limit value of the oil injection pulse width need to be reset when the oil rail pressure sensor fails. When the ECU detects the fault of the oil rail pressure sensor, single injection is adopted, the initial angle of the oil injection is adjusted to enable the oil injection to be completed before the compression stroke as far as possible, the latest end angle of the oil injection is reduced, the maximum allowable injection angle range is enlarged, and therefore the maximum limit value of the oil injection pulse width is enlarged.
In this embodiment, the method for determining the initial injection angle includes, under the condition that the completion of the injection process in the intake stroke is ensured, keeping the enrichment factor of the injected oil constant, and increasing the initial injection angle continuously, wherein the corresponding initial injection angle is obtained when the air-fuel ratio is the minimum value. In the embodiment, the initial injection angle is set to 520deg before top dead center, the latest injection ending angle is set to 180deg before top dead center, and the maximum allowable injection angle range is set to 340deg before top dead center.
The third measure is as follows: the engine output torque is reduced. Since the end of the injection pulsewidth required for acceleration may exceed the compression stroke at low rail pressures even if the start angle of injection and the maximum limit for the injection pulsewidth are adjusted, the engine output torque is limited and calibrated based on engine speed, as detailed in table 9.
TABLE 9 Engine output Torque calibration chart
| Engine speed rpm | 600 | 1000 | 1500 | 2000 | 2500 | 3000 |
| Torque Nm | 100 | 100 | 100 | 100 | 100 | 100 |
Limiting the torque of the engine limits the required air inflow, so that the opening of a throttle valve or the opening of a supercharger actuator is limited, and the size of the oil injection quantity is further limited. The throttle opening and the fuel injection amount under the condition of torque limitation can be calculated by the prior art.
Claims (10)
1. An engine control method based on oil rail pressure sensor faults is characterized in that: when the oil rail pressure sensor has a fault, the high-pressure oil pump is closed, the oil rail pressure closed-loop control program is quitted, the transition oil rail pressure in the fault period is estimated, the oil injection quantity in the fault period is determined, the oil injection process is controlled to be completed in the air intake stroke, and the output torque of the engine is reduced.
2. The engine control method based on the failure of the rail pressure sensor according to claim 1, characterized in that: the method for closing the high-pressure oil pump comprises the steps of controlling the low side of a flow control valve of the high-pressure oil pump to be at a high level; a method of exiting the rail pressure closed-loop control routine includes controlling a target duty cycle of the flow control valve to 0.
3. The engine control method based on the failure of the rail pressure sensor according to claim 1, characterized in that: the method for estimating the fault period transition oil rail pressure comprises the step of gradually reducing the fault period transition oil rail pressure from the non-fault target oil rail pressure at the fault occurrence moment to the fault period target oil rail pressure.
4. The engine control method based on the failure of the rail pressure sensor according to claim 3, characterized in that: the method for estimating the transition oil rail pressure in the fault period comprises the step of carrying out low-pass filtering processing according to the target oil rail pressure which is not in fault at the moment when the fault occurs and the target oil rail pressure in the fault period to obtain the transition oil rail pressure in the fault period.
5. The engine control method based on the failure of the rail pressure sensor according to claim 4, characterized in that: the method for determining the target fuel rail pressure without faults comprises the step of obtaining the target fuel rail pressure without faults according to the engine speed and load calibration when the fuel rail pressure sensor does not have faults.
6. The engine control method based on the failure of the rail pressure sensor according to claim 4, characterized in that: the method for determining the target oil rail pressure in the fault period comprises the step of obtaining the target oil rail pressure according to the engine speed and the load calibration after the oil rail pressure sensor is not in fault.
7. The engine control method based on the failure of the rail pressure sensor according to claim 4, characterized in that: the fault period transition oil rail pressure PBkup(n) is
PBkup(n)＝(PrailsensBkup-PBkup(n-1))*(1-K)+PBkup(n-1)*K
Wherein, PrailsensBkupIs a fault period target rail pressure; pBkup(n-1) the fault period transition oil rail pressure of the previous calculation period, wherein the initial value is the target oil rail pressure without fault at the fault moment; and k is a filter coefficient which is obtained according to the engine speed calibration.
8. The engine control method based on the failure of the rail pressure sensor according to claim 1, characterized in that: the method for determining the output torque of the engine after the fault comprises the step of obtaining the output torque according to the engine speed calibration.
9. The engine control method based on the failure of the rail pressure sensor according to claim 1, characterized in that: the method for controlling the completion of the injection process in the intake stroke includes adjusting the start angle of injection and increasing the maximum limit of the injection pulsewidth.
10. The engine control method based on the failure of the rail pressure sensor according to claim 9, characterized in that: the method for determining the initial oil injection angle comprises the steps of keeping the enrichment factor of oil injection unchanged and continuously increasing the initial oil injection angle under the condition of ensuring that the oil injection process is completed in an air intake stroke, wherein the corresponding initial oil injection angle is obtained when the air-fuel ratio is the minimum value.
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| CN202011123385.2A CN112253322B (en) | 2020-10-20 | 2020-10-20 | Engine control method based on oil rail pressure sensor fault |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719368A (en) * | 2021-08-25 | 2021-11-30 | 东风商用车有限公司 | Stuck fault diagnosis method for mechanical pressure release valve of oil rail and fuel oil system |
| CN114738075A (en) * | 2022-05-05 | 2022-07-12 | 一汽解放汽车有限公司 | Engine output torque control method and device based on engine oil pressure and vehicle |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210532A (en) * | 1998-01-29 | 1999-08-03 | Toyota Motor Corp | High pressure fuel feeder for internal combustion engine |
| US5937826A (en) * | 1998-03-02 | 1999-08-17 | Cummins Engine Company, Inc. | Apparatus for controlling a fuel system of an internal combustion engine |
| US6024064A (en) * | 1996-08-09 | 2000-02-15 | Denso Corporation | High pressure fuel injection system for internal combustion engine |
| US6047679A (en) * | 1997-04-25 | 2000-04-11 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Control apparatus for an internal combustion engine |
| EP1234971A2 (en) * | 2001-02-21 | 2002-08-28 | Delphi Technologies, Inc. | Control method |
| JP2003176746A (en) * | 2001-12-11 | 2003-06-27 | Denso Corp | Fuel injector for diesel engine |
| JP2006029096A (en) * | 2004-07-12 | 2006-02-02 | Yanmar Co Ltd | Pressure accumulating fuel injector |
| CN101063425A (en) * | 2006-04-28 | 2007-10-31 | 株式会社日立制作所 | Fuel supplu equipment for motor and control method thereof |
| US20080022958A1 (en) * | 2006-07-25 | 2008-01-31 | Nissan Motor Co., Ltd. | Engine start control apparatus and method |
| EP1975398A2 (en) * | 2007-03-26 | 2008-10-01 | Hitachi, Ltd. | Control device for high-pressure fuel system |
| JP2011122460A (en) * | 2009-12-08 | 2011-06-23 | Toyota Motor Corp | Control device for internal combustion engine |
| US20110202259A1 (en) * | 2010-02-12 | 2011-08-18 | Honda Motor Co., Ltd. | Air/fuel ratio control apparatus for general-purpose engine |
| CN103052784A (en) * | 2011-05-13 | 2013-04-17 | 丰田自动车株式会社 | Internal combustion engine control apparatus |
| CN103075264A (en) * | 2012-12-21 | 2013-05-01 | 青岛大学 | Direct-injection compression-ignition engine |
| US8881707B2 (en) * | 2010-10-18 | 2014-11-11 | Denso Corporation | Fail-safe controller for direct injection engine |
| US20160053701A1 (en) * | 2014-08-19 | 2016-02-25 | Denso Corporation | Individual cylinder air-fuel ratio control device of internal combustion engine |
| CN105569862A (en) * | 2015-12-23 | 2016-05-11 | 潍柴动力股份有限公司 | Method and device for controlling engine |
| US20160356238A1 (en) * | 2015-06-03 | 2016-12-08 | GM Global Technology Operations LLC | Method of controlling a fuel injection system during rail pressure sensor failure condition |
| CN106285990A (en) * | 2016-08-15 | 2017-01-04 | 江西汇尔油泵油嘴有限公司 | Distributive value modification method based on rail pressure fluctuation and fuel injection control method |
| US20180274474A1 (en) * | 2017-03-22 | 2018-09-27 | Ford Global Technologies, Llc | Method and system for an engine |
| CN109322757A (en) * | 2018-10-30 | 2019-02-12 | 潍柴动力股份有限公司 | Rail pressure analogy method and device in Starting Process of Diesel Engine |
| CN110067660A (en) * | 2019-03-15 | 2019-07-30 | 江苏大学 | A kind of fault diagnosis of high-pressure common-rail diesel engine rail-pressure and reply control method |
| CN111472895A (en) * | 2020-04-19 | 2020-07-31 | 东风商用车有限公司 | Fault diagnosis method for slow response of intelligent VGT |
-
2020
- 2020-10-20 CN CN202011123385.2A patent/CN112253322B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024064A (en) * | 1996-08-09 | 2000-02-15 | Denso Corporation | High pressure fuel injection system for internal combustion engine |
| US6047679A (en) * | 1997-04-25 | 2000-04-11 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Control apparatus for an internal combustion engine |
| JPH11210532A (en) * | 1998-01-29 | 1999-08-03 | Toyota Motor Corp | High pressure fuel feeder for internal combustion engine |
| US5937826A (en) * | 1998-03-02 | 1999-08-17 | Cummins Engine Company, Inc. | Apparatus for controlling a fuel system of an internal combustion engine |
| EP1234971A2 (en) * | 2001-02-21 | 2002-08-28 | Delphi Technologies, Inc. | Control method |
| JP2003176746A (en) * | 2001-12-11 | 2003-06-27 | Denso Corp | Fuel injector for diesel engine |
| JP2006029096A (en) * | 2004-07-12 | 2006-02-02 | Yanmar Co Ltd | Pressure accumulating fuel injector |
| CN101063425A (en) * | 2006-04-28 | 2007-10-31 | 株式会社日立制作所 | Fuel supplu equipment for motor and control method thereof |
| US20080022958A1 (en) * | 2006-07-25 | 2008-01-31 | Nissan Motor Co., Ltd. | Engine start control apparatus and method |
| EP1975398A2 (en) * | 2007-03-26 | 2008-10-01 | Hitachi, Ltd. | Control device for high-pressure fuel system |
| JP2011122460A (en) * | 2009-12-08 | 2011-06-23 | Toyota Motor Corp | Control device for internal combustion engine |
| US20110202259A1 (en) * | 2010-02-12 | 2011-08-18 | Honda Motor Co., Ltd. | Air/fuel ratio control apparatus for general-purpose engine |
| US8881707B2 (en) * | 2010-10-18 | 2014-11-11 | Denso Corporation | Fail-safe controller for direct injection engine |
| CN103052784A (en) * | 2011-05-13 | 2013-04-17 | 丰田自动车株式会社 | Internal combustion engine control apparatus |
| CN103075264A (en) * | 2012-12-21 | 2013-05-01 | 青岛大学 | Direct-injection compression-ignition engine |
| US20160053701A1 (en) * | 2014-08-19 | 2016-02-25 | Denso Corporation | Individual cylinder air-fuel ratio control device of internal combustion engine |
| US20160356238A1 (en) * | 2015-06-03 | 2016-12-08 | GM Global Technology Operations LLC | Method of controlling a fuel injection system during rail pressure sensor failure condition |
| CN105569862A (en) * | 2015-12-23 | 2016-05-11 | 潍柴动力股份有限公司 | Method and device for controlling engine |
| CN106285990A (en) * | 2016-08-15 | 2017-01-04 | 江西汇尔油泵油嘴有限公司 | Distributive value modification method based on rail pressure fluctuation and fuel injection control method |
| US20180274474A1 (en) * | 2017-03-22 | 2018-09-27 | Ford Global Technologies, Llc | Method and system for an engine |
| CN109322757A (en) * | 2018-10-30 | 2019-02-12 | 潍柴动力股份有限公司 | Rail pressure analogy method and device in Starting Process of Diesel Engine |
| CN110067660A (en) * | 2019-03-15 | 2019-07-30 | 江苏大学 | A kind of fault diagnosis of high-pressure common-rail diesel engine rail-pressure and reply control method |
| CN111472895A (en) * | 2020-04-19 | 2020-07-31 | 东风商用车有限公司 | Fault diagnosis method for slow response of intelligent VGT |
Non-Patent Citations (4)
| Title |
|---|
| 王银坤等: "Austro Engine E4系列发动机电控系统控制原理及典型故障分析", 《民航学报》 * |
| 舒华等: "《汽车新技术》", 31 August 2012 * |
| 陈丛金等: "高压共轨柴油机轨压控制策略及参数研究", 《小型内燃机与车辆技术》 * |
| 陈孔武等: "某三缸汽油机起动时间和峰值转速多目标优化设计", 《内燃机工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719368A (en) * | 2021-08-25 | 2021-11-30 | 东风商用车有限公司 | Stuck fault diagnosis method for mechanical pressure release valve of oil rail and fuel oil system |
| CN113719368B (en) * | 2021-08-25 | 2023-05-12 | 东风商用车有限公司 | Method for diagnosing clamping stagnation fault of mechanical pressure release valve of fuel rail and fuel system |
| CN114738075A (en) * | 2022-05-05 | 2022-07-12 | 一汽解放汽车有限公司 | Engine output torque control method and device based on engine oil pressure and vehicle |
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