EP1157201A1 - System for operating an internal combustion engine, especially an internal combustion engine of an automobile - Google Patents
System for operating an internal combustion engine, especially an internal combustion engine of an automobileInfo
- Publication number
- EP1157201A1 EP1157201A1 EP99973747A EP99973747A EP1157201A1 EP 1157201 A1 EP1157201 A1 EP 1157201A1 EP 99973747 A EP99973747 A EP 99973747A EP 99973747 A EP99973747 A EP 99973747A EP 1157201 A1 EP1157201 A1 EP 1157201A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- supply system
- fuel supply
- combustion engine
- internal combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
-
- 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
-
- 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
- F02D2041/224—Diagnosis of the fuel system
-
- 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
- F02D2041/224—Diagnosis of the fuel system
- F02D2041/225—Leakage detection
-
- 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
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
Definitions
- the invention relates to a method and an apparatus for operating a fuel supply system of an internal combustion engine, in particular a motor vehicle, in which fuel is pumped into a storage space and a pressure is generated in the storage space, in which an actual value of the pressure is measured with the aid of a pressure sensor. and in which the pressure in the storage space is controlled and regulated to a setpoint, an error in the fuel supply system being detected by a plausibility check.
- a fuel supply system is known from US Pat. No. 5,241,933, in which the fuel pressure is regulated with the aid of a pressure regulator and in which an error detection device is an error in the
- Detects fuel supply system and this error is displayed using a display device.
- a differential pressure is formed from an actual pressure and a target pressure.
- a correction value is then determined from the differential pressure, with which the nominal value of the pressure is corrected. The correction value also becomes one
- Error detection device supplied in which it is checked whether the correction value is within an allowable pressure range formed by two predetermined values. If the correction value lies outside this range, an error in the fuel supply system is recognized and displayed.
- the object of the present invention is to improve a method of the generic type in such a way that the component causing a fault in the fuel supply system can be determined.
- the particularly great advantage of the present invention is that an accurate diagnosis of the fuel supply system is achieved without additional components.
- Figure 1 shows a schematic representation of a
- Fuel supply system of an internal combustion engine is provided.
- FIG. 2 schematically shows the sequence of the diagnosis of the fuel supply system.
- FIG. 3 schematically shows the course of the diagnostic cycle upon detection of a fault in the fuel supply system.
- FIG. 1 shows a fuel supply system 10 which is intended for use in an internal combustion engine.
- An electric fuel pump (EKP) 12, a fuel filter 13 and a low pressure regulator 14 are arranged in a fuel tank 11.
- the EKP 12 conveys the fuel from the fuel tank 11 via the fuel filter 13.
- the fuel filter 13 has the task of filtering out foreign particles from the fuel. With the help of the low pressure regulator 14, the fuel pressure in the low pressure range is regulated to a predetermined value.
- a fuel line 15 leads from the fuel tank 11 to a high-pressure pump 16.
- a storage space 17 adjoins the high-pressure pump 16, on which injection valves 18 are arranged. The injection valves 18 are with the
- Storage space 17 connected and are preferably assigned directly to the combustion chambers of the internal combustion engine.
- the fuel is conveyed from the fuel tank 11 via the fuel line 15 to the high-pressure pump 16 with the aid of the electric fuel pump 12.
- the fuel is brought to a pressure of approx. 4-5 bar.
- the high-pressure pump 16 which is preferably driven directly by the internal combustion engine, compresses the fuel and delivers it to a storage space 17.
- the fuel pressure here reaches values of up to 120 bar.
- the fuel is injected directly into the combustion chambers of the internal combustion engine via the injection valves 18, which can be controlled individually.
- a pressure sensor 21 and a pressure control valve 19 are connected directly to the storage space 17.
- the pressure control valve 19 is connected on the input side to the storage space 17.
- a return line 20 leads to the fuel line 15.
- the pressure sensor 21 and the pressure control valve 19 are connected to a control unit 25 via signal and control lines 22, 23.
- a quantity control valve can also be used in a fuel supply system 10.
- a quantity control valve can also be used in a fuel supply system 10.
- the actual value of the fuel pressure in the storage space 17 is detected.
- the actual value is fed to the control unit 25 via the signal line 22.
- a control signal is generated in the control unit 25 on the basis of the detected actual value of the fuel pressure, with which the pressure control valve 19 is controlled via the control line 23.
- control unit 25 Various functions that serve to control the internal combustion engine are implemented in the control unit 25. In modern control units, these functions are programmed on a computer and then stored in a memory of the control unit 25. The functions stored in the memory are activated depending on the requirements for the internal combustion engine. Here, in particular, tough demands are made on the real-time capability of the control device 25 in connection with the functions. In principle, however, a pure hardware implementation of the functions for controlling the internal combustion engine is entirely possible.
- pressure regulation and pressure pilot control serve, for example, to control or regulate the pressure in the storage space 17 of the fuel supply system 10.
- the pressure control function regulates faults that briefly change the pressure in the storage space.
- the output signal of the pressure sensor 21 is compared with a target variable.
- a Generated signal with which the pressure control valve 19 is controlled and the deviation is corrected.
- the output of the pressure regulator remains in the zero or neutral position.
- the pressure pilot control generates a control signal for the pressure control valve 19 on the basis of a setpoint value for the pressure.
- the pressure pilot control describes the behavior of the fuel supply system 10 so precisely that the pressure regulator only has to correct faults and otherwise remains in the neutral position.
- the pressure control and the pressure pre-control work in principle in parallel, the pressure control influencing the dynamic and the pressure pre-control the stationary behavior of the pressure in the storage space.
- FIG. 10 The sequence of a diagnosis of the fuel supply system 10 is shown schematically in FIG.
- a block 201 represents the normal operation of the internal combustion engine. Normal operation means that the internal combustion engine runs without errors, no emergency operation functions are activated and / or the diagnostic cycle is not activated.
- the electrical check of the pressure sensor 21 is carried out by evaluating the output signal of the pressure sensor 21. For this purpose, it is checked, for example, whether the output signal has values within a permissible range. If the output signal takes values outside the permissible range, then a short circuit or a cable break error is detected. Furthermore, it can be checked whether the time profile of the output signal has a shape that is typical depending on the fuel supply system 10.
- Display device displayed and at the same time set a corresponding emergency operation of the internal combustion engine in block 206.
- the pressure control is switched off, so that the pressure in the storage space 17 is only set by the pressure pilot control.
- a fault in the output stages of the pressure control valve 19 or the high-pressure injection valves 18 is recognized by observing an output stage voltage of the individual output stages. If the output stage voltage in the switched-on or switched-off state of the output stages deviates substantially from a value predetermined for the switched-on or switched-off state of the output stages, then a short-circuit or cable break fault is detected in the output stages. If an error in the output stages of the pressure control valve 19 or the high-pressure injection valves 18 is detected in block 204, the error is displayed in block 207 with the aid of a display device and, in block 208, a corresponding emergency operation of the internal combustion engine is set at the same time.
- a general error is recognized in block 203 by a plausibility check of the fuel supply system 10
- the error is displayed in block 209 with the aid of a display device and a diagnostic cycle of the internal combustion engine is started and displayed.
- various diagnostic functions are activated in block 210, which are used to check the individual components of the fuel supply system 10.
- Fuel supply system 10 wherein for pressure control in the storage space 17 in addition to the pressure regulator
- Pressure pre-control is active, performed by comparing the output value of the pressure regulator with a predetermined threshold value. If the output value of the pressure regulator exceeds the threshold value over a predetermined period of time, a deviation of the
- Fuel supply system 10 recognized by normal behavior or by the pressure pre-control. For this it is assumed that the pressure pre-control functions correctly and describes the stationary behavior of the fuel supply system 10 with sufficient accuracy.
- FIG. 3 schematically represents the course of the diagnostic cycle.
- step 301 If in step 301 (this step corresponds to step 203 in FIG. 2), the plausibility check causes an error in
- the diagnostic cycle is started in a step 302.
- diagnostic functions are activated which check the individual components of the fuel supply system 10 for functionality.
- output signals of the misfire detection, smooth running control, lambda control, mixture adaptation or leakage detection functions are evaluated in a suitable manner and linked to one another.
- output signals are also referred to as signals which can come from an intermediate result of the above-mentioned functions.
- combustion misfires are detected on the basis of an air / fuel ratio that is “too rich” or “too lean”. Misfires in individual cylinders cause the individual cylinders to no longer deliver the same torque, which causes the internal combustion engine to run unevenly.
- the lambda control can only optimally compensate for control deviations if the controller output is at rest, i.e. there are no control deviations, takes a value close to the neutral position. If there are permanent deviations or faults due to aging or errors in the
- Fuel supply system 10 the controller output permanently takes a value outside the zero position and thus runs outside of its optimal working range. Short-term deviations or malfunctions can only be compensated for poorly or not at all.
- the mixture adaptation function shown in block 304 solves this problem. It detects permanent deviations between the specified and the recorded air / fuel
- Ratio by evaluating the output signal of the lambda control and intervenes adaptively in the mixture formation. For this purpose, the mass of fuel to be injected is changed so that the regulator output resumes a value close to the zero position in the idle state.
- High pressure injection valves 18 checked. Since an electrical check of the output stages of the high-pressure injection valves 18 is already carried out during normal operation of the internal combustion engine, it is checked in the diagnostic cycle whether there is a quantity error. A quantity error exists if a predetermined quantity of fuel does not match the quantity of fuel injected into the combustion chamber of the internal combustion engine.
- Misfiring detection and smoothness control functions are determined by comparing the output signals of these functions with predetermined threshold values to determine whether and in which cylinders there are smoothnesses or misfires. With this information alone, a fault in the high-pressure injection valves 18 can be concluded with a high probability.
- an output signal of the lambda control shown in block 305 is evaluated. For this purpose, it is checked whether the output signal of the lambda control is greater than a predetermined threshold value over a predetermined time. As an alternative or in addition to the lambda control, the output signal of the mixture adaptation shown in block 306 is evaluated.
- the output signal of the mixture adaptation is the same as for the Lambda control compared to a predetermined threshold.
- Short-term errors i.e. short-term faults in the high-pressure injection valves 18 are indicated by an AND
- Permanent high pressure injector 18 failures i.e. Errors that are permanent are indicated by an AND
- an error of the high-pressure injection valves 18 is displayed with the aid of a display device.
- the diagnostic cycle is ended and a corresponding emergency operation of the internal combustion engine is set. If there is no fault in the high-pressure injection valves 18, the functionality of the pressure sensor 21 is checked in a block 308.
- High-pressure injection valves 18 are supplied with fuel for combustion.
- the behavior of the combustion of the fuel can be determined by evaluating output signals of the functions lambda control 305 and / or mixture adaptation 306.
- the pressure in the storage space with the pressure sensor 21 and the combustion behavior of the fuel are detected at a predetermined time with the aid of the lambda control and / or mixture adaptation.
- the pressure in the storage space is then changed.
- the pressure and the combustion behavior of the fuel are recorded again.
- the function of the pressure sensor 21 is inferred from a comparison of the values for the pressure in the storage space 17 and the combustion behavior of the fuel, which were recorded before the pressure change and after the pressure change.
- an error of the pressure sensor 21 is displayed with the aid of a display device.
- the diagnostic cycle is ended and a corresponding emergency operation function of the internal combustion engine is activated. If there is no fault in the high-pressure injection valves 18 or the pressure sensor 21, the function of the pressure control valve 19 is checked in a block 310. Since an electrical check of the output stages of the pressure control valve 19 is already carried out during normal operation of the internal combustion engine, it is checked here whether the pressure value to be expected by the control device 25 being activated by the control device 25 is set in the storage space 17.
- the signal which controls the pressure control valve 19 can be compared with the signal emitted by the pressure sensor 21. If these signals deviate significantly from one another over a longer period of time, then an error in the pressure control valve 19 can be concluded therefrom.
- the output signals of the lambda control 305 and the mixture adaptation 306 are also evaluated.
- the signal which controls the pressure control valve 19 can be changed in a predetermined manner, as a result of which the pressure in the storage space 17 and the injected fuel mass normally change in a targeted manner.
- the behavior of the combustion is detected by evaluating the output signals of the lambda control and the mixture adaptation.
- the signal which controls the pressure control valve 19 is compared with the output signals of the lambda control and / or the mixture adaptation. If the signal driving the pressure control valve 19 is changed quickly in a predetermined manner, the signal driving the pressure control valve 19 is compared with the output signal of the lambda control.
- an error of the pressure sensor 21 is displayed with the aid of a display device.
- the pressure reduction in the storage space 17 is detected. If the pressure decreases within a shorter period of time than a predetermined time, a leakage of the fuel supply system 10 is detected.
- a leakage of the fuel supply system 10 is displayed with the aid of a display device.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19908352A DE19908352A1 (en) | 1999-02-26 | 1999-02-26 | Fuel injection method for an internal combustion engine |
DE19908352 | 1999-02-26 | ||
PCT/DE1999/002958 WO2000052319A1 (en) | 1999-02-26 | 1999-09-10 | System for operating an internal combustion engine, especially an internal combustion engine of an automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1157201A1 true EP1157201A1 (en) | 2001-11-28 |
EP1157201B1 EP1157201B1 (en) | 2003-11-26 |
Family
ID=7898959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99973747A Expired - Lifetime EP1157201B1 (en) | 1999-02-26 | 1999-09-10 | System for operating an internal combustion engine, especially an internal combustion engine of an automobile |
Country Status (7)
Country | Link |
---|---|
US (1) | US6474292B1 (en) |
EP (1) | EP1157201B1 (en) |
JP (1) | JP2002538368A (en) |
KR (1) | KR100669293B1 (en) |
DE (2) | DE19908352A1 (en) |
ES (1) | ES2212682T3 (en) |
WO (1) | WO2000052319A1 (en) |
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DE19957732B4 (en) * | 1999-12-01 | 2004-05-13 | Siemens Ag | Procedure for checking an operational safety-relevant component of a plant |
US6792929B2 (en) * | 2001-03-07 | 2004-09-21 | Toyota Jidosha Kabushiki Kaisha | Method for detecting failure of injection fuel heaters of internal combustion engine |
DE10147189A1 (en) | 2001-09-25 | 2003-04-24 | Bosch Gmbh Robert | Method for operating a fuel supply system for an internal combustion engine of a motor vehicle |
US6715468B2 (en) * | 2001-11-07 | 2004-04-06 | Denso Corporation | Fuel injection system |
DE10155252B4 (en) * | 2001-11-09 | 2004-01-08 | Siemens Ag | Method for checking the plausibility of a fuel pressure value supplied by a pressure sensor in an injection system for internal combustion engines and corresponding injection system |
US6755077B2 (en) * | 2002-06-06 | 2004-06-29 | General Motors Corporation | Diagnostic system for identifying fuel injector failure in a fuel cell system |
DE10248626A1 (en) * | 2002-10-18 | 2004-04-29 | Robert Bosch Gmbh | Method for operating an internal combustion engine and control device therefor |
DE10258426B4 (en) | 2002-12-13 | 2008-08-21 | Siemens Ag | Method and device for monitoring a control device of an internal combustion engine |
DE10259797A1 (en) * | 2002-12-19 | 2004-07-15 | Siemens Ag | Device and method for detecting faults in a fuel injection system |
DE10348610B4 (en) * | 2003-10-20 | 2009-07-09 | Continental Automotive Gmbh | Method and apparatus for monitoring a fuel pressure sensor |
DE10354471A1 (en) * | 2003-11-21 | 2005-06-30 | Siemens Ag | Method and device for fault diagnosis in control devices of an internal combustion engine of a motor vehicle |
DE102005008180A1 (en) * | 2005-02-23 | 2006-08-31 | Robert Bosch Gmbh | Method for monitoring internal combustion engine injection device involves identification of misoperation of injection device by evaluating signal of fault detection whereby error response is initiated depending on identified misoperation |
JP4207010B2 (en) | 2005-03-15 | 2009-01-14 | 株式会社デンソー | Fuel injection device |
JP4610407B2 (en) * | 2005-04-26 | 2011-01-12 | 本田技研工業株式会社 | Fuel injection device for internal combustion engine |
DE102006026639A1 (en) * | 2006-06-08 | 2007-12-13 | Robert Bosch Gmbh | Method for checking the function of a component of a fuel injection system |
DE102008020928B4 (en) * | 2008-04-25 | 2014-04-17 | Continental Automotive Gmbh | A method for controlling an air-fuel ratio and method for detecting a fuel quality |
DE102008041877A1 (en) | 2008-09-08 | 2010-03-11 | Robert Bosch Gmbh | Internal combustion engine e.g. diesel engine, operating method for vehicle, involves switching engine from operating mode into another operating mode when characteristic of engine exceeds threshold value, and injecting fuel into engine |
US7950371B2 (en) * | 2009-04-15 | 2011-05-31 | GM Global Technology Operations LLC | Fuel pump control system and method |
DE102009051023B4 (en) * | 2009-10-28 | 2015-01-15 | Audi Ag | Method for operating a drive unit and drive unit |
JP5287673B2 (en) * | 2009-11-11 | 2013-09-11 | 株式会社デンソー | Abnormal site diagnosis device |
DK2386024T3 (en) | 2010-02-23 | 2016-01-25 | Artemis Intelligent Power Ltd | Fluidarbejdsmaskine and method to operate an fluidarbejdsmaskine |
GB2477997B (en) | 2010-02-23 | 2015-01-14 | Artemis Intelligent Power Ltd | Fluid working machine and method for operating fluid working machine |
DE102011015396B4 (en) | 2011-03-29 | 2013-06-13 | Audi Ag | Method for checking components of a motor vehicle and motor vehicles with corresponding checking device |
FR2983530A1 (en) | 2011-12-06 | 2013-06-07 | Renault Sa | METHOD FOR DIAGNOSING A DERIVATIVE OF AT LEAST ONE INJECTOR OF A COMMON RAIL FUEL INJECTION SYSTEM |
DE102014206717B4 (en) * | 2014-04-08 | 2022-10-20 | Vitesco Technologies GmbH | Pressure accumulator device for a motor vehicle fuel injection system and method for operating such a pressure accumulator device |
SE541174C2 (en) * | 2015-07-01 | 2019-04-23 | Scania Cv Ab | Procedure and system for diagnosing a fuel system |
DE102016208088A1 (en) * | 2016-05-11 | 2017-11-16 | Robert Bosch Gmbh | Method for controlling a fuel supply system |
DE102016219375B3 (en) * | 2016-10-06 | 2017-10-05 | Continental Automotive Gmbh | Operating a fuel injector with hydraulic stop at reduced fuel pressure |
DE102016220123B4 (en) * | 2016-10-14 | 2018-05-09 | Continental Automotive Gmbh | Method and device for plausibilizing the functionality of a high-pressure sensor of a fuel injection system of a motor vehicle |
DE102018203542A1 (en) * | 2018-03-08 | 2019-09-12 | Volkswagen Aktiengesellschaft | Method for diagnosing an injection device for an internal combustion engine |
CN108622438B (en) * | 2018-07-30 | 2023-08-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Physical simulation platform for simulating performance degradation and faults of components in fuel system |
US11739719B2 (en) | 2020-03-09 | 2023-08-29 | Randal S. Nichols | Fuel injector interface device and method of use |
US11319910B2 (en) * | 2020-03-09 | 2022-05-03 | Randal S. Nichols | Fuel injector interface device and method of use |
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US4790277A (en) * | 1987-06-03 | 1988-12-13 | Ford Motor Company | Self-adjusting fuel injection system |
JPH0730732B2 (en) * | 1991-02-27 | 1995-04-10 | 日本電装株式会社 | Accumulation type fuel supply device |
JPH0569374U (en) * | 1992-02-28 | 1993-09-21 | 富士重工業株式会社 | In-cylinder direct injection engine abnormality warning device |
JP3321837B2 (en) * | 1992-08-06 | 2002-09-09 | 株式会社日立製作所 | Vehicle diagnostic control method |
JPH0932617A (en) * | 1995-07-13 | 1997-02-04 | Nissan Motor Co Ltd | Spark ignition internal combustion engine |
DE19607284B4 (en) * | 1996-02-27 | 2014-03-13 | Robert Bosch Gmbh | Method for detecting and documenting exhaust-related malfunctions of a vehicle |
DE19607461B4 (en) * | 1996-02-28 | 2012-12-13 | Robert Bosch Gmbh | Method for detecting and documenting exhaust-related malfunctions of a vehicle with an internal combustion engine using on-board means |
DE19626689C1 (en) * | 1996-07-03 | 1997-11-20 | Bosch Gmbh Robert | Common-rail fuel injection system monitoring method |
DE19634982C2 (en) | 1996-08-29 | 2002-10-10 | Siemens Ag | Method for monitoring a fuel pressure |
EP0860600B1 (en) * | 1997-02-21 | 2003-09-17 | Toyota Jidosha Kabushiki Kaisha | A fuel injection system for an internal combustion engine |
JP3796912B2 (en) * | 1997-02-21 | 2006-07-12 | トヨタ自動車株式会社 | Fuel injection device for internal combustion engine |
JP3814916B2 (en) * | 1997-02-26 | 2006-08-30 | トヨタ自動車株式会社 | Fuel injection device for internal combustion engine |
JP3680515B2 (en) * | 1997-08-28 | 2005-08-10 | 日産自動車株式会社 | Fuel system diagnostic device for internal combustion engine |
DE19757655C2 (en) * | 1997-12-23 | 2002-09-26 | Siemens Ag | Method and device for monitoring the function of a pressure sensor |
US6053147A (en) * | 1998-03-02 | 2000-04-25 | Cummins Engine Company, Inc. | Apparatus and method for diagnosing erratic pressure sensor operation in a fuel system of an internal combustion engine |
US6293251B1 (en) * | 1999-07-20 | 2001-09-25 | Cummins Engine, Inc. | Apparatus and method for diagnosing erratic pressure sensor operation in a fuel system of an internal combustion engine |
-
1999
- 1999-02-26 DE DE19908352A patent/DE19908352A1/en not_active Withdrawn
- 1999-09-10 EP EP99973747A patent/EP1157201B1/en not_active Expired - Lifetime
- 1999-09-10 JP JP2000602513A patent/JP2002538368A/en active Pending
- 1999-09-10 KR KR1020017010907A patent/KR100669293B1/en not_active IP Right Cessation
- 1999-09-10 DE DE59907898T patent/DE59907898D1/en not_active Expired - Lifetime
- 1999-09-10 US US09/914,357 patent/US6474292B1/en not_active Expired - Fee Related
- 1999-09-10 WO PCT/DE1999/002958 patent/WO2000052319A1/en active IP Right Grant
- 1999-09-10 ES ES99973747T patent/ES2212682T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0052319A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6474292B1 (en) | 2002-11-05 |
JP2002538368A (en) | 2002-11-12 |
KR20020005600A (en) | 2002-01-17 |
WO2000052319A1 (en) | 2000-09-08 |
KR100669293B1 (en) | 2007-01-17 |
ES2212682T3 (en) | 2004-07-16 |
EP1157201B1 (en) | 2003-11-26 |
DE59907898D1 (en) | 2004-01-08 |
DE19908352A1 (en) | 2000-08-31 |
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