EP0795077B1 - Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems - Google Patents
Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems Download PDFInfo
- Publication number
- EP0795077B1 EP0795077B1 EP96913445A EP96913445A EP0795077B1 EP 0795077 B1 EP0795077 B1 EP 0795077B1 EP 96913445 A EP96913445 A EP 96913445A EP 96913445 A EP96913445 A EP 96913445A EP 0795077 B1 EP0795077 B1 EP 0795077B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- pressure
- metering system
- combustion chamber
- 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.)
- Expired - Lifetime
Links
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
- F02D41/3827—Common rail control systems for diesel engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
-
- 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
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- 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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder 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
- F02D41/30—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
Definitions
- the invention relates to a method and a device to monitor a fuel metering system according to General terms of the independent claims.
- Such a method and such a device for Monitoring a fuel metering system are from the US 52 41 933 known. There will be one procedure and one Device for monitoring a high pressure circuit at a Common rail system described. The one described there The device regulates the pressure in the rail. Is that Actuating variable of the pressure control circuit outside of a specifiable one Range, the device detects for errors.
- US 4 512 307 describes a method in which monitoring is whether the combustion chamber temperature is a certain critical Exceeds the maximum. This maximum value is chosen so that destruction or damage to the Internal combustion engine should be prevented. Monitored the establishment of whether the temperature is a fixed predetermined Value exceeds. A leak or other error in the area of fuel metering can be done with a not recognize such a facility or recognize it very late. This Facility only detects serious errors that are related to can lead to destruction of the internal combustion engine.
- US 4,466,408 shows a method and an apparatus at which the cylinder pressure is evaluated.
- the course of the Cylinder pressure during a combustion is with predetermined curves compared. Give way to the saved ones Curves significantly from the actual course of the Combustion chamber pressure decreases, a faulty combustion recognized.
- the invention has for its object in a Device and a method for monitoring a Fuel metering system of the type mentioned at the outset, if possible to be able to recognize errors safely and easily. This task is by the in the independent claims marked features solved.
- DE-OS 44 40 700 is a method known in the event of an accident caused by a Airbag sensor is detected, an electromagnetic High pressure regulator on the downstream side of the High pressure line opens completely. This leads to one Pressure drop in the high pressure part of the fuel metering device.
- FIG. 1 shows a block diagram of the device according to the invention and the Figures 2, 3 and 4 each show a flow chart of a Embodiment of the method according to the invention.
- an internal combustion engine is referred to an intake line 105 receives fresh air and emits 110 exhaust gases via an exhaust pipe.
- the internal combustion engine shown is a four-cylinder internal combustion engine. Every cylinder the Internal combustion engine is an injector 120, 121, 122 and 123 assigned. The injectors are connected via solenoid valves 130, 131, 132 and 133 fuel metered. The fuel arrives from a so-called rail 135 via the injectors 120, 121, 122 and 123 into the cylinders of internal combustion engine 100.
- the fuel in the rail 135 is from a high pressure pump 145 brought to an adjustable pressure.
- the High pressure pump 145 is connected to a via a solenoid valve 150
- Fuel delivery pump 155 connected.
- the fuel delivery pump communicates with a fuel tank 160.
- the valve 150 comprises a coil 152.
- the solenoid valves 130, 131, 132 and 133 include coils 140, 141, 142 and 143 that each supplied with current by means of an output stage 175 can be.
- the final stage 175 is preferably in one Control device 170 arranged, which also the coil 152nd controls.
- a sensor 177 is provided which detects the pressure in the Rail 135 detected and a corresponding signal to the Control unit 170 conducts.
- the Control unit 180 can be designed as an independent control unit his. However, it can also be integrated into the controller 170 his.
- the pressure control valve can from the Control 170 can be controlled and are present a corresponding control signal the connection between the rail 135 and the return line 195 and thus the Reservoir 160 free.
- the Sensors 181 to 184 designed as pressure sensors. This Sensors record the combustion chamber pressure in the combustion chambers of the single cylinder.
- the Fuel delivery pump 155 delivers the fuel from the Storage container via valve 150 to high pressure pump 145.
- the high pressure pump 145 builds one in the rail 135 predefinable pressure on. Usually pressure values achieved greater than 800 bar in Rail 135.
- the Control signals for the coils set the Start of injection and end of injection of fuel the injectors 120 to 123.
- the control signals are depending on the control unit from different Operating conditions, such as the driver's request, the speed and other sizes.
- the temperature in the Combustion chamber of each engine cylinder measured. Exceeds that Temperature of one of the cylinders a predetermined Threshold, the fuel supply is reduced or turned off or other emergency driving measures initiated.
- the senor is in the Glow plug integrated. This has the advantage that none additional drilling in the engine is required. Especially It is advantageous if the electrical resistance of the Glow plugs are used as temperature signals. This Resistance changes by a factor of 2 to 4 in Temperature range O to 1100 ° C. Alternatively, the Thermal effect of the glow plugs to provide a Temperature signal can be evaluated.
- the target temperature in the combustion chamber is used for fault detection depending on the target fuel quantity and engine speed N saved. This target temperature is compared with the Combustion chamber measured temperature compared. If the actual temperature in the combustion chamber longer than a time ts by more than a temperature difference ⁇ exceeds the error recognized and the amount of fuel greatly reduced or switched off.
- step 200 a counter t set to zero. Then in step 210 the current combustion chamber temperature TI, the fuel quantity QKS and Speed N detected.
- the fuel quantity QKS can all be in fuel quantity signals present to controller 170, such as for example the target or the actual fuel quantity be used.
- step 220 the setpoint temperature becomes the map IS as a function F of the fuel quantity QKS and the speed N read out.
- the query 230 checks whether the amount of the difference between the actual temperature TI and the target temperature Ts is less than ⁇ . If this is the case, follow again Step 210. If not, i. H. the actual temperature deviates significantly from the target temperature, so the time counter t is increased by 1 in step 240. The Query 250 checks whether the time counter t is greater or is equal to a threshold ts. If this is not the case, then Step 210 follows again. If this is the case, then in Step 260 is detected for errors and there will be corresponding ones Measures initiated.
- step 300 the temperature signal of the first Cylinder Z1 detected. Accordingly, in step 300 Temperature signal of the second cylinder Z2 detected. In step 302 and 303 becomes the temperature signal of cylinders Z3 and Z4 detected. In step 310, the amplitudes of the four Signals summed up and divided by 4. Hence it follows the mean M of the four temperature signals.
- step 320 a counter i is set to 0 and in subsequent step 330 increased by 1.
- Query 340 checks whether the difference between the values Zi of the i-th Cylinder and the average M greater than a threshold value S is. If this is not the case, query 350 checks whether i is greater than or equal to 4. If this is not the case, then step 330 occurs again or if i is greater than or equal to 4 step 300 follows.
- Step 360 recognizes that the amount of the difference between the values of the i-th cylinder Zi and the Mean value M is greater than the threshold value S, then in Step 360 detected errors and a corresponding one Measures initiated.
- a time counter t becomes zero set.
- one of the Temperature sensors 181 to 184 have a temperature value Z (k) Combustion chamber temperature.
- the time counter is in Step 420 increased by one.
- the subsequent query 430 checks whether a waiting time tw has expired. Is this If this is not the case, step 420 follows again.
- Step 450 forms then the difference ZA between the old value Z (k) and the new value Z (k + 1). This difference ZA is a measure for the temperature rise during the waiting period tw.
- the subsequent query 460 checks whether the Difference ZA is greater than a threshold value SA. Is this the old value Z (k) does not become the case in step 470 overwritten with the new value Z (k + 1). Then follows Step 420. Query 460 recognizes that the Temperature rise is greater than an allowable value, so step 480 detects errors.
- the device both a detects increased as well as a reduced injection quantity.
- the pressure in the rail to a value just above the Opening pressure of the nozzles can be set. At this Measure can still damage a sensitive engine take too much fuel from a leaky nozzle can flow.
- Safe emergency driving can be achieved if the Engine cylinders are assigned to two groups and for each Group a separate high pressure pump, a separate rail and a separate pressure relief valve is used. At this configuration can only the cylinder group be switched off in which a combustion chamber with too high Temperature was diagnosed. With the second Cylinder group can maintain emergency operation become.
- a particularly advantageous alternative is when Place or in addition to the temperature sensors 181 to 184 at least one pressure sensor is used, the a signal delivers that corresponds to the pressure in the respective combustion chamber.
- the error detection takes place using average values across all cylinders, as in the case of Temperature measurement. Instead of the temperature signals Pressure signals processed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Description
Claims (8)
- Verfahren zur Überwachung eines Kraftstoffzumeßsystems einer Dieselbrennkraftmaschine, insbesondere eines Common-Rail-Systems, dadurch gekennzeichnet, daß ein defektes Zumeßsystem erkannt wird, wenn ein Signal eines Sensors, der die Temperatur und/oder den Druck in wenigstens einem Brennraum der Brennkraftmaschine erfaßt, von einem Mittelwert über alle Zylinder abweicht, oder daß ein defektes Zumeßsystem erkannt wird, wenn ein Signal eines Sensors, der die Temperatur in wenigstens einem Brennraum der Brennkraftmaschine erfaßt, innerhalb eines vorgebbaren Zeitraums um mehr als eine zulässige Änderung ansteigt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Sensor ein Signal liefert, das der Temperatur im Brennraum entspricht.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Sensor ein Signal liefert, das dem Druck im Brennraum entspricht.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Temperatursensor in eine Glühstiftkerze integriert ist.
- Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Widerstand der Glühstiftkerze als Maß für die Temperatur ausgewertet wird. - Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß bei erkanntem Fehler der Druck im Rail abgesenkt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zylinder in zwei Gruppen aufgeteilt werden und bei erkanntem Defekt in einer Gruppe, die als Defekt erkannte Gruppe abgeschaltet wird.
- Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Dieselbrennkraftmaschine, insbesondere eines Common-Rail-Systems, dadurch gekennzeichnet, daß Mittel vorgesehen sind, die ein defektes Zumeßsystem erkennen, wenn ein Signal eines Sensors, der die Temperatur und/oder den Druck in wenigstens einem Brennraum der Brennkraftmaschine erfaßt, von einem Mittelwert über alle Zylinder abweicht, oder daß Mittel vorgesehen sind, die ein defektes Zumeßsystem erkennen, wenn ein Signal eines Sensors, der die Temperatur in wenigstens einem Brennraum der Brennkraftmaschine erfaßt, innerhalb eines vorgebbaren Zeitraums um mehr als eine zulässige Änderung ansteigt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19536109 | 1995-09-28 | ||
DE19536109A DE19536109A1 (de) | 1995-09-28 | 1995-09-28 | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems |
PCT/DE1996/000749 WO1997012137A1 (de) | 1995-09-28 | 1996-04-24 | Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0795077A1 EP0795077A1 (de) | 1997-09-17 |
EP0795077B1 true EP0795077B1 (de) | 2001-10-04 |
Family
ID=7773435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96913445A Expired - Lifetime EP0795077B1 (de) | 1995-09-28 | 1996-04-24 | Verfahren und vorrichtung zur überwachung eines kraftstoffzumesssystems |
Country Status (6)
Country | Link |
---|---|
US (1) | US5816220A (de) |
EP (1) | EP0795077B1 (de) |
JP (1) | JPH10512345A (de) |
KR (1) | KR980700509A (de) |
DE (2) | DE19536109A1 (de) |
WO (1) | WO1997012137A1 (de) |
Families Citing this family (37)
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US6002252A (en) | 1991-05-22 | 1999-12-14 | Wolff Controls Corporation | Compact sensing apparatus having transducer and signal conditioner with a plurality of mounting pins |
DE19626690B4 (de) * | 1996-07-03 | 2008-12-11 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine |
DE19651671C2 (de) * | 1996-12-12 | 2001-10-04 | Daimler Chrysler Ag | Steuerung einer Einspritzanlage für eine mehrzylindrige Brennkraftmaschine |
JP3695046B2 (ja) * | 1997-02-07 | 2005-09-14 | いすゞ自動車株式会社 | エンジンの燃料噴射方法及びその装置 |
US6220217B1 (en) * | 1997-08-11 | 2001-04-24 | Sanshin Kogyo Kabushiki Kaisha | Fuel supply system for direct injected system for engines |
US6763807B1 (en) * | 1997-11-28 | 2004-07-20 | Clean Fuel Technology, Inc. | Apparatus and method for controlling a fuel injector assembly of an internal combustion engine during cold operation thereof |
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 |
AU4698799A (en) * | 1998-06-23 | 2000-01-10 | H.R. Krueger Machine Tool, Inc. | Flowmeter |
DE19860468A1 (de) * | 1998-12-28 | 2000-07-06 | Bosch Gmbh Robert | Kraftstoffeinspritzanlage |
DE19927901B4 (de) * | 1999-06-18 | 2005-10-20 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Überwachung einer Brennkraftmaschine |
US6321593B1 (en) * | 1999-11-18 | 2001-11-27 | Ford Global Technologies, Inc. | Electronic fuel pump, sender and pressure transducer tester |
DE10003906A1 (de) * | 2000-01-29 | 2001-08-09 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Kalibrieren eines Drucksensors |
DE10022953A1 (de) * | 2000-05-11 | 2001-11-15 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung der Kraftstoffeinspritzung |
DE10036868B4 (de) * | 2000-07-28 | 2004-07-29 | Robert Bosch Gmbh | Injektor für ein einen Hochdrucksammelraum umfassendes Einspritzsystem |
US20020152985A1 (en) * | 2001-04-20 | 2002-10-24 | Wolff Peter U. | System, apparatus including on-board diagnostics, and methods for improving operating efficiency and durability of compression ignition engines |
DE10137315A1 (de) | 2001-07-31 | 2003-02-20 | Volkswagen Ag | Schaltungsanordnung und Verfahren zur Regelung einer elektrischen Kraftstoffpumpe in einem rücklauffreien Kraftstoff-Fördersystem |
DE10148221A1 (de) * | 2001-09-28 | 2003-07-31 | Bosch Gmbh Robert | Verfahren, Computerprogramm sowie Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
US7124746B2 (en) * | 2002-07-16 | 2006-10-24 | Brocco Douglas S | Method and apparatus for controlling a fuel injector |
JP4161690B2 (ja) * | 2002-11-20 | 2008-10-08 | 株式会社デンソー | 蓄圧式燃料噴射装置 |
DE10259358B4 (de) * | 2002-12-18 | 2005-02-24 | Siemens Ag | Verfahren zur Überwachung einer Brennkraftmaschine |
US7006910B2 (en) * | 2003-06-03 | 2006-02-28 | Caterpillar Inc. | Engine power loss compensation |
US6708507B1 (en) | 2003-06-17 | 2004-03-23 | Thermo King Corporation | Temperature control apparatus and method of determining malfunction |
JP4218465B2 (ja) * | 2003-08-22 | 2009-02-04 | トヨタ自動車株式会社 | 内燃機関の燃料噴射量制御装置 |
DE102004012491B4 (de) * | 2004-03-15 | 2008-12-24 | Continental Automotive Gmbh | Verfahren zur Bestimmung von defekten Aktoren einer Brennkraftmaschine |
US6976390B2 (en) * | 2004-03-25 | 2005-12-20 | General Motors Corporation | Engine cylinder deactivation test apparatus and method for using |
US7428893B2 (en) * | 2004-11-12 | 2008-09-30 | Caterpillar Inc | Electronic flow control valve |
US20100082219A1 (en) * | 2008-09-30 | 2010-04-01 | Gm Global Technology Operations, Inc. | Engine Using Glow Plug Resistance For Estimating Combustion Temperature |
US7950371B2 (en) * | 2009-04-15 | 2011-05-31 | GM Global Technology Operations LLC | Fuel pump control system and method |
JP4858578B2 (ja) | 2009-06-19 | 2012-01-18 | 株式会社デンソー | 燃料温度検出装置 |
DE102011081928A1 (de) * | 2011-08-31 | 2013-02-28 | Man Diesel & Turbo Se | Verfahren zur Überwachung von in Gaszufuhrleitungen eines Gasmotors angeordneten Rückschlagventilen |
DE102012203097B3 (de) * | 2012-02-29 | 2013-04-11 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Bestimmen eines Fehlers einer Druckmessung in einem Druckbehälter |
JP5928395B2 (ja) * | 2013-04-02 | 2016-06-01 | トヨタ自動車株式会社 | インジェクタの診断装置 |
US10221782B2 (en) * | 2014-04-04 | 2019-03-05 | Honda Motor Co., Ltd. | In-cylinder pressure detecting apparatus |
AT515859B1 (de) | 2014-06-12 | 2019-10-15 | Innio Jenbacher Gmbh & Co Og | Brennkraftmaschine |
US10428751B2 (en) * | 2017-04-20 | 2019-10-01 | Ford Global Technologies, Llc | Method and system for characterizing a port fuel injector |
DE102019212214B3 (de) * | 2019-08-14 | 2020-10-15 | Mtu Friedrichshafen Gmbh | Verfahren zur Diagnose einer Injektorleckage bei einer Brennkraftmaschine, Brennkraftmaschine sowie Computerprogrammprodukt |
DE102019212215B3 (de) * | 2019-08-14 | 2020-12-31 | Mtu Friedrichshafen Gmbh | Verfahren zur Diagnose einer Injektorenfunktionsfähigkeit bei einer Brennkraftmaschine mit einer Mehrzahl von Injektoren, Brennkraftmaschine zur Durchführung eines solchen Verfahrens und Computerprogrammprodukt |
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US4466408A (en) * | 1983-03-10 | 1984-08-21 | The United States Of America As Represented By The Secretary Of The Army | Apparatus for closed-loop combustion control in internal combustion engines |
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JPH0569374U (ja) * | 1992-02-28 | 1993-09-21 | 富士重工業株式会社 | 筒内直噴式エンジンの異常警告装置 |
DE4335171C1 (de) * | 1993-10-15 | 1995-05-04 | Daimler Benz Ag | Kraftstoffeinspritzanlage für eine mehrzylindrige Dieselbrennkraftmaschine |
JP3133586B2 (ja) * | 1993-11-18 | 2001-02-13 | 富士重工業株式会社 | 高圧燃料噴射式エンジンの燃料圧力制御装置 |
-
1995
- 1995-09-28 DE DE19536109A patent/DE19536109A1/de not_active Withdrawn
-
1996
- 1996-04-24 US US08/836,027 patent/US5816220A/en not_active Expired - Lifetime
- 1996-04-24 WO PCT/DE1996/000749 patent/WO1997012137A1/de not_active Application Discontinuation
- 1996-04-24 EP EP96913445A patent/EP0795077B1/de not_active Expired - Lifetime
- 1996-04-24 JP JP9513045A patent/JPH10512345A/ja active Pending
- 1996-04-24 KR KR1019970703502A patent/KR980700509A/ko not_active Application Discontinuation
- 1996-04-24 DE DE59607829T patent/DE59607829D1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4466408A (en) * | 1983-03-10 | 1984-08-21 | The United States Of America As Represented By The Secretary Of The Army | Apparatus for closed-loop combustion control in internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
DE59607829D1 (de) | 2001-11-08 |
WO1997012137A1 (de) | 1997-04-03 |
KR980700509A (ko) | 1998-03-30 |
US5816220A (en) | 1998-10-06 |
DE19536109A1 (de) | 1997-04-03 |
EP0795077A1 (de) | 1997-09-17 |
JPH10512345A (ja) | 1998-11-24 |
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