EP0811116B1 - Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems einer brennkraftmaschine - Google Patents
Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems einer brennkraftmaschine Download PDFInfo
- Publication number
- EP0811116B1 EP0811116B1 EP96926997A EP96926997A EP0811116B1 EP 0811116 B1 EP0811116 B1 EP 0811116B1 EP 96926997 A EP96926997 A EP 96926997A EP 96926997 A EP96926997 A EP 96926997A EP 0811116 B1 EP0811116 B1 EP 0811116B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- pressure signal
- internal combustion
- combustion engine
- value
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 title claims abstract description 8
- 230000003466 anti-cipated effect Effects 0.000 claims 12
- 230000001105 regulatory effect Effects 0.000 claims 4
- 230000007423 decrease Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
Images
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
- F02D41/22—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
- F02D41/30—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
-
- 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
-
- 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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
- F02D2200/0604—Estimation of 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
Definitions
- the invention relates to a method and a device to monitor a fuel metering system Internal combustion engine according to the generic terms of the independent Expectations.
- Method and device for monitoring a Fuel metering system of an internal combustion engine known.
- a Fuel metering system of an internal combustion engine known.
- one supports Prefeed pump fuel from a low pressure range in a high pressure area.
- the fuel is controllable injectors the individual combustion chambers of the Internal combustion engine metered.
- a sensor detects the pressure in the High pressure range, which is taken into account in the control. Accurate fuel metering is only possible if the exact value of the pressure in the high pressure range is known.
- the pressure is in the range between a few 100 to approx. 2000 bar. Within this The pressure sensor must reliably transmit a signal provide. A failure of the pressure sensor or a faulty signal from the pressure sensor leads to a inaccurate fuel metering.
- the invention is based, with one Method and a device of the type mentioned improve the accuracy of fuel metering.
- This Task is by the in the independent claims marked features solved.
- WO / A-95/06814 discloses monitoring a Fuel metering system of an internal combustion engine, in which the Fuel from a low pressure area by means of a pump a high pressure area is promoted. From there by means of Fuel controllable depending on the operating parameters Injectors measurable the combustion chambers of the internal combustion engine. On Sensor provides a pressure signal that the pressure in the High pressure area characterized. In given Operating conditions, the pressure signal with an expected Value compared and, depending on the comparison, an incorrect one Pressure signal recognized.
- the disadvantage of this device is that it cannot be distinguished whether there is a fault in the pressure sensor or from other components of the metering system.
- DE-OS 43 35 700 is a device and a Method known in which a drift of the output signal of a position sensor is reliably detected. For this, in certain operating conditions in which the position of a Known approximately, the measured variable is recorded and with compared to the expected value. Starting from this Comparison can be a drift or an error of the Detect position sensor.
- FIG. 1 shows a block diagram of a common rail system
- Figure 2 a Flow chart of the method according to the invention.
- FIG. 1 is a common rail system as a block diagram shown.
- a control is designated by 100.
- This includes a pressure controller 101, which is a switching means 102 controlled and with the output signals of a Current measuring means 103 is applied.
- the current control 101 also processes the output signal of a pressure sensor 110 and the output signals from further sensors 105 first input of the switching means 102 is via the Current measuring means 103 connected to battery voltage.
- the second connection of the switching means 102 is with a coil 115 in contact, the second input of which is connected to ground in Connection is established.
- the other sensors 105 are sensors, the different operating states of the internal combustion engine and of the vehicle driven by the internal combustion engine to capture. This is for example the Speed N of the internal combustion engine and the accelerator pedal position, that identify the driver request.
- the pressure sensor 110 detects the pressure in a rail 112 which assigned to the high pressure area of the fuel metering system is.
- the rail 112 has various injectors 111 in Contact.
- the rail 112 is connected via a high-pressure line 122 a high pressure pump 125 connected.
- the high pressure line 122 is also via a pressure control valve 120 with a Return line 121 in contact.
- the high pressure pump 125 is stopped with a prefeed pump 127 and a filter 129 with a Tank in connection. With the tank there is also Return line 121 in connection.
- the pre-feed pump 127 pumps the fuel out of the tank via the filter 129 to high pressure pump 125.
- This area is called Designated low pressure range.
- the high pressure pump 125 delivers the fuel under high pressure over the High pressure line 122 into rail 112.
- the pressure in rail 112 and thus in the high pressure area by means of the pressure sensor 110 detected and fed to the controller 100.
- the controller 100 applies sensors to the injectors 111 with control signals that control the fuel metering.
- the pressure in the High-pressure line 122 and thus in the rail 112 to predeterminable Values can be set.
- the pressure control valve 120 is like this trained that it at a predetermined pressure in High pressure area the connection to the return line 121 releases and thus the pressure is reduced until it is below the predeterminable pressure value drops.
- the pressure value at which the Pressure control valve 120 releases the connection by means of the coil 115 can be adjusted. Depending on the current I, that flows through the coil 115 turn up different pressure values in the high pressure range.
- Step 200 it is checked whether a defined one Operating status is present. If this is the case, then in Step 210 the actual pressure PI from the pressure sensor 110 detected. In step 220, starting from various Quantities which are detected by means of sensors 225 expected value PS determined for the pressure. The value PS will preferably depending on suitable sizes from one Map memory read out. In the subsequent step 230 the two pressure values PI and PS are checked for plausibility checked.
- step 200 If the measured pressure value PI is plausible, then this sets Program continues with step 200.
- Query 230 recognizes that the values are not plausible, so in step 250 the Measured values PI corrected or an error is recognized.
- implausible Pressure values detected for errors This is in step 250 displayed. This can be done using a Display device take place. On the other hand, it is also possible in this case to initiate an emergency operation.
- drift is recognized and corrected this.
- the difference becomes in step 250 between the expected value PS and the measured value PI certainly. Based on this difference, one can then Determine the correction value for the measured value PI. With this Correction value, the measured value is continuously corrected.
- step 200 checks whether there is an overrun operation.
- overrun mode no fuel is usually injected. Will the Thrust operation is recognized, so the pressure control valve 120 controlled so that it is in its open position remains.
- the pressure value PS that now arises only shows still a relatively small spread.
- the value PS expected for this operating state depends of the speed N stored in a map. Gives way to measured pressure PI from the speed-dependent value PS around more than a predefinable threshold value, then in Step 250 detected for errors.
- the Check before starting the engine or after the shutdown of the internal combustion engine is usually the pressure control valve 120 controlled so that the pressure decreases. Usually the pressure decreases to atmospheric pressure or it builds up down to a predetermined value. This predetermined value depends on the design of the pressure control valve. According to the invention, query 200 therefore checks whether the engine is turned off, that is, whether it is before or after the start.
- Step 210 the program starts Step 210 before starting or after turning off is processed automatically.
- the pressure PI is recorded and with a predetermined value, that of the pressure control valve used 120 depends. Is the pressure control valve designed so that there is a decrease in pressure to atmospheric pressure enables, an output signal of a Atmospheric pressure sensor used as a comparison value PS become.
- the detected value PI of the pressure compared with a value PS, the of the current I flowing through the pressure control valve 115 depends.
- the pressure P it was recognized that there was a defined relationship between the pressure P and the the pressure control valve I gives flowing current.
- the Current I becomes a setpoint PS for the setpoint in step 220 of the pressure.
- the expected one Pressure value as a function of the current stored in a map. This procedure is used to check the correct function of the pressure sensor without using any other Sensors possible.
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 (8)
- Verfahren zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine, bei dem der Kraftstoff mittels einer Pumpe von einem Niederdruckbereich in einen Hochdruckbereich gefördert wird, und von dort mittels betriebskenngrößenabhängig steuerbarer Injektoren den Brennräumen der Brennkraftmaschine zumeßbar ist, wobei ein Sensor ein Drucksignal bereitstellt, das den Druck im Hochdruckbereich charakterisiert, dadurch gekennzeichnet, daß im Schubbetrieb das Druckregelventil derart angesteuert wird, daß es in seiner geöffneten Stellung verbleibt, daß das Drucksignal mit einem erwarteten Wert verglichen wird und ein fehlerhaftes Drucksignal erkannt wird, wenn das Drucksignal (PI) von dem erwarteten Wert (PS) um mehr als ein vorgebbarer Schwellwert abweicht.
- Verfahren zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine, bei dem der Kraftstoff mittels einer Pumpe von einem Niederdruckbereich in einen Hochdruckbereich gefördert wird, und von dort mittels betriebskenngrößenabhängig steuerbarer Injektoren den Brennräumen der Brennkraftmaschine zumeßbar ist, wobei ein Sensor ein Drucksignal bereitstellt, das den Druck im Hochdruckbereich charakterisiert, dadurch gekennzeichnet, daß im Nachlauf und/oder vor dem Start das Drucksignal mit einem erwarteten Wert (PI) verglichen wird und ein fehlerhaftes Drucksignal erkannt wird, wenn das Drucksignal (PI) von dem erwarteten Wert (PS) abweicht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der erwartete Wert abhängig von der Drehzahl vorgebbar ist.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der erwartete Wert von einem Athmosphärendrucksensor bereitgestellt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, ein Druckregelventil mit einem vorgebbaren Strom beaufschlagbar ist, und überprüft wird, ob das Drucksignal auf den erwarteten Wert abfällt.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der erwartete Wert abhängig vom Strom, der durch das Druckregelventil fließt, vorgebbar ist.
- Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine, bei dem der Kraftstoff mittels einer Pumpe von einem Niederdruckbereich in einen Hochdruckbereich gefördert wird, und von dort mittels betriebskenngrößenabhängig steuerbarer Injektoren den Brennräumen der Brennkraftmaschine zumeßbar ist, wobei ein Sensor ein Drucksignal bereitstellt, das den Druck im Hochdruckbereich charakterisiert, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die im Schubbetrieb das Druckregelventil derart ansteuern, daß es in seiner geöffneten Stellung verbleibt, und die das Drucksignal mit einem erwarteten Wert vergleichen und ein fehlerhaftes Drucksignal erkennen, wenn das Drucksignal (PI) von dem erwarteten Wert (PS) um mehr als ein vorgebbarer Schwellwert abweicht.
- Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine, bei dem der Kraftstoff mittels einer Pumpe von einem Niederdruckbereich in einen Hochdruckbereich gefördert wird, und von dort mittels betriebskenngrößenabhängig steuerbarer Injektoren den Brennräumen der Brennkraftmaschine zumeßbar ist, wobei ein Sensor ein Drucksignal bereitstellt, das den Druck im Hochdruckbereich charakterisiert, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die im Nachlauf und/oder vor dem Start das Drucksignal mit einem erwarteten Wert vergleichen und ein fehlerhaftes Drucksignal erkennen, wenn das Drucksignal (PI) von dem erwarteten Wert (PS) abweicht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547647A DE19547647A1 (de) | 1995-12-20 | 1995-12-20 | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine |
DE19547647 | 1995-12-20 | ||
PCT/DE1996/001349 WO1997022791A1 (de) | 1995-12-20 | 1996-07-18 | Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0811116A1 EP0811116A1 (de) | 1997-12-10 |
EP0811116B1 true EP0811116B1 (de) | 2000-04-26 |
Family
ID=7780699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96926997A Expired - Lifetime EP0811116B1 (de) | 1995-12-20 | 1996-07-18 | Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0811116B1 (de) |
JP (1) | JP4073485B2 (de) |
KR (1) | KR100413305B1 (de) |
DE (2) | DE19547647A1 (de) |
WO (1) | WO1997022791A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19721176C2 (de) * | 1997-05-21 | 2000-01-13 | Bosch Gmbh Robert | System zur Überprüfung eines Drucksensors eines Kraftstoffversorgungssystems für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
JP3234865B2 (ja) * | 1997-08-22 | 2001-12-04 | 本田技研工業株式会社 | 燃料圧力センサの故障検知装置 |
DE19757594C2 (de) * | 1997-12-23 | 2002-11-28 | Siemens Ag | Verfahren und Vorrichtung zur Funktionsüberwachung eines Druckreglers |
US6076504A (en) * | 1998-03-02 | 2000-06-20 | Cummins Engine Company, Inc. | Apparatus for diagnosing failures and fault conditions in a fuel system of an internal combustion engine |
DE19827557B4 (de) * | 1998-06-20 | 2004-07-08 | Robert Bosch Gmbh | Verfahren zum Erkennen eines Fahrzeug-Crashes |
DE19834660A1 (de) | 1998-07-31 | 2000-02-03 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems |
CA2298305A1 (en) * | 1999-07-07 | 2001-01-07 | Jason Edward Yost | System for detecting fuel injection timing |
DE10003906A1 (de) * | 2000-01-29 | 2001-08-09 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Kalibrieren eines Drucksensors |
DE10030935A1 (de) | 2000-06-24 | 2002-01-03 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Kalibrieren eines Drucksensors in einem Kraftstoffzumesssystem |
DE60121113T2 (de) * | 2000-11-06 | 2006-11-09 | Honda Giken Kogyo K.K. | Vorrichtung zur Fehlerbestimmung eines Feuchtigkeitssensors und Vorrichtung zur Steuerung eines Umschaltventils im Abgassystem |
JP3807270B2 (ja) * | 2001-08-31 | 2006-08-09 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
DE10147189A1 (de) * | 2001-09-25 | 2003-04-24 | Bosch Gmbh Robert | Verfahren zum Betreiben eines Kraftstoffversorgungssystems für einen Verbrennungsmotor eines Kraftfahrzeugs |
WO2003064839A1 (fr) * | 2002-01-29 | 2003-08-07 | Yamaha Hatsudoki Kabushiki Kaisha | Unite d'affichage d'auto-diagnostic |
JP3715953B2 (ja) * | 2002-07-10 | 2005-11-16 | 三菱電機株式会社 | 燃圧センサの特性補正装置 |
US6947831B2 (en) * | 2003-04-11 | 2005-09-20 | Ford Global Technologies, Llc | Pressure sensor diagnosis via a computer |
DE10348610B4 (de) * | 2003-10-20 | 2009-07-09 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Überwachen eines Kraftstoffdrucksensors |
JP4407611B2 (ja) * | 2005-10-06 | 2010-02-03 | 株式会社デンソー | 燃料噴射制御装置 |
DE102007028900B4 (de) | 2007-06-22 | 2013-06-27 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Diagnose eines mit einer Kraftstoffverteilerleiste in Verbindung stehenden Einspritzventils einer Brennkraftmaschine |
DE102008024955B3 (de) * | 2008-05-23 | 2009-12-24 | Continental Automotive Gmbh | Verfahren zur Erkennung einer Fehlfunktion eines Raildrucksensors bei einem Common Rail-Einspritzsystem |
JPWO2011007772A1 (ja) * | 2009-07-15 | 2012-12-27 | ボッシュ株式会社 | 圧力センサ故障診断方法及びコモンレール式燃料噴射制御装置 |
JP5342373B2 (ja) * | 2009-08-21 | 2013-11-13 | ボッシュ株式会社 | 圧力センサの異常診断装置及び異常診断方法 |
DE102009051023B4 (de) | 2009-10-28 | 2015-01-15 | Audi Ag | Verfahren zum Betreiben eines Antriebsaggregats sowie Antriebsaggregat |
US8511275B2 (en) * | 2010-10-01 | 2013-08-20 | General Electric Company | Method and system for a common rail fuel system |
DE102011101825A1 (de) * | 2011-05-17 | 2012-11-22 | Daimler Ag | Kraftfahrzeugmotorsteuervorrichtung |
KR101601460B1 (ko) | 2014-08-04 | 2016-03-09 | 현대자동차주식회사 | 압력센서 오프셋 보정 시스템 및 방법 |
DE102016220123B4 (de) * | 2016-10-14 | 2018-05-09 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Plausibilierung der Funktionsfähigkeit eines Hochdrucksensors eines Kraftstoffeinspritzsystems eines Kraftfahrzeugs |
DE102018217327B4 (de) * | 2018-10-10 | 2023-10-12 | Vitesco Technologies GmbH | Verfahren und Vorrichtung zur Plausibilisierung der Funktionsfähigkeit eines Hochdrucksensors einer Hochdruckkraftstoffeinspritzvorrichtung eines Kraftfahrzeugs |
CN112196685A (zh) * | 2020-09-29 | 2021-01-08 | 东风商用车有限公司 | 一种介入式轨压传感器故障诊断方法及装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55162536A (en) * | 1979-06-06 | 1980-12-17 | Hitachi Ltd | Checking method for gaseous fuel feeding and stopping device |
DE3730443A1 (de) * | 1987-09-10 | 1989-03-23 | Voest Alpine Automotive | Verfahren zum steuern und regeln einer brennkraftmaschine und elektronische kraftstoff- einspritzeinrichtung zur durchfuehrung des verfahrens |
JPH0730732B2 (ja) * | 1991-02-27 | 1995-04-10 | 日本電装株式会社 | 蓄圧式燃料供給装置 |
JP3033214B2 (ja) * | 1991-02-27 | 2000-04-17 | 株式会社デンソー | 複数の燃料圧送手段による蓄圧式燃料供給方法及び装置と、複数の流体圧送手段を有する機器における異常判断装置 |
DE4302810A1 (de) * | 1993-02-02 | 1994-08-04 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
IT1261575B (it) * | 1993-09-03 | 1996-05-23 | Fiat Ricerche | Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna |
DE4335171C1 (de) * | 1993-10-15 | 1995-05-04 | Daimler Benz Ag | Kraftstoffeinspritzanlage für eine mehrzylindrige Dieselbrennkraftmaschine |
-
1995
- 1995-12-20 DE DE19547647A patent/DE19547647A1/de not_active Withdrawn
-
1996
- 1996-07-18 KR KR1019970705715A patent/KR100413305B1/ko not_active IP Right Cessation
- 1996-07-18 EP EP96926997A patent/EP0811116B1/de not_active Expired - Lifetime
- 1996-07-18 DE DE59605057T patent/DE59605057D1/de not_active Expired - Lifetime
- 1996-07-18 WO PCT/DE1996/001349 patent/WO1997022791A1/de active IP Right Grant
- 1996-07-18 JP JP52239897A patent/JP4073485B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0811116A1 (de) | 1997-12-10 |
DE59605057D1 (de) | 2000-05-31 |
JPH11506813A (ja) | 1999-06-15 |
DE19547647A1 (de) | 1997-06-26 |
KR19980702318A (ko) | 1998-07-15 |
WO1997022791A1 (de) | 1997-06-26 |
JP4073485B2 (ja) | 2008-04-09 |
KR100413305B1 (ko) | 2004-05-10 |
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