RU2009139911A - METHOD FOR DIAGNOSTIC OF VALVE VALVE - Google Patents

METHOD FOR DIAGNOSTIC OF VALVE VALVE Download PDF

Info

Publication number
RU2009139911A
RU2009139911A RU2009139911/06A RU2009139911A RU2009139911A RU 2009139911 A RU2009139911 A RU 2009139911A RU 2009139911/06 A RU2009139911/06 A RU 2009139911/06A RU 2009139911 A RU2009139911 A RU 2009139911A RU 2009139911 A RU2009139911 A RU 2009139911A
Authority
RU
Russia
Prior art keywords
valve
fuel
shut
pressure
mass
Prior art date
Application number
RU2009139911/06A
Other languages
Russian (ru)
Inventor
Юрген ФЁРСТЕР (DE)
Юрген ФЁРСТЕР
Винфрид ЛАНГЕР (DE)
Винфрид ЛАНГЕР
Original Assignee
Роберт Бош ГмбХ (DE)
Роберт Бош Гмбх
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Роберт Бош ГмбХ (DE), Роберт Бош Гмбх filed Critical Роберт Бош ГмбХ (DE)
Publication of RU2009139911A publication Critical patent/RU2009139911A/en

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
    • F02D41/22—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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/025—Failure diagnosis or prevention; Safety measures; Testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

1. Способ диагностики запорного клапана (400, 500, 510), расположенного в топливном трубопроводе (50) между по меньшей мере одним резервуаром (100, 110) и по меньшей мере одним впускным клапаном (70), включающий регистрацию давления топлива за запорным клапаном (400, 500, 510), введение топлива в камеру сгорания через впускной клапан, закрытие запорного клапана (400, 500, 510) для его диагностики, отличающийся тем, что определяют массу введенного через впускной клапан топлива, исходя из массы введенного топлива, определяют ожидаемое за запорным клапаном давление топлива и признают запирающее действие запорного клапана (400, 500, 510) недостаточным, если давление топлива за запорным клапаном (400, 500, 510) отличается от ожидаемого давления топлива. ! 2. Способ по п.1, в котором запирающее действие запорного клапана (400, 500, 510) признают недостаточным, если давление топлива за запорным клапаном (400, 500, 510) превышает ожидаемое давление топлива и/или если характер изменения давления отличается от ожидаемого. ! 3. Способ по п.1, в котором при остановке двигателя внутреннего сгорания закрывают запорный клапан (400, 500, 510) и поддерживают работу двигателя до завершения диагностики. ! 4. Способ по п.1, в котором при измерении давления в топливном трубопроводе (50) учитывают величину, характеризующую температуру топлива. ! 5. Способ по п.1, в котором на основании давления и температуры определяют массу топлива в топливном трубопроводе (50), и запирающее действие запорного клапана (400, 500, 510) признают недостаточным, если масса топлива в топливном трубопроводе (50) уменьшается несоответственно массе введенного топлива. ! 6. Система питания двигателя внутреннего сгорания, включаю 1. A method for diagnosing a shut-off valve (400, 500, 510) located in the fuel line (50) between at least one tank (100, 110) and at least one inlet valve (70), including recording the fuel pressure behind the shut-off valve (400, 500, 510), the introduction of fuel into the combustion chamber through the inlet valve, the closing of the check valve (400, 500, 510) for its diagnostics, characterized in that the mass of the fuel introduced through the inlet valve is determined based on the mass of the injected fuel, the expected fuel pressure downstream of the shut-off valve and consider the closing action of the shut-off valve (400, 500, 510) insufficient if the fuel pressure downstream of the shut-off valve (400, 500, 510) differs from the expected fuel pressure. ! 2. The method according to claim 1, in which the locking action of the check valve (400, 500, 510) is considered insufficient if the fuel pressure downstream of the check valve (400, 500, 510) exceeds the expected fuel pressure and / or if the nature of the pressure change differs from expected. ! 3. The method according to claim 1, wherein when the internal combustion engine is stopped, the shut-off valve (400, 500, 510) is closed and the engine is maintained until the diagnosis is completed. ! 4. The method according to claim 1, wherein the measurement of the pressure in the fuel line (50) takes into account a value characterizing the temperature of the fuel. ! 5. The method according to claim 1, in which the mass of fuel in the fuel line (50) is determined based on the pressure and temperature, and the closing action of the shut-off valve (400, 500, 510) is deemed insufficient if the mass of fuel in the fuel line (50) decreases inappropriate to the mass of the injected fuel. ! 6. Power supply system of the internal combustion engine, turn on

Claims (6)

1. Способ диагностики запорного клапана (400, 500, 510), расположенного в топливном трубопроводе (50) между по меньшей мере одним резервуаром (100, 110) и по меньшей мере одним впускным клапаном (70), включающий регистрацию давления топлива за запорным клапаном (400, 500, 510), введение топлива в камеру сгорания через впускной клапан, закрытие запорного клапана (400, 500, 510) для его диагностики, отличающийся тем, что определяют массу введенного через впускной клапан топлива, исходя из массы введенного топлива, определяют ожидаемое за запорным клапаном давление топлива и признают запирающее действие запорного клапана (400, 500, 510) недостаточным, если давление топлива за запорным клапаном (400, 500, 510) отличается от ожидаемого давления топлива.1. A method for diagnosing a shut-off valve (400, 500, 510) located in a fuel pipe (50) between at least one reservoir (100, 110) and at least one inlet valve (70), comprising registering the fuel pressure behind the shut-off valve (400, 500, 510), introducing fuel into the combustion chamber through the inlet valve, closing the shut-off valve (400, 500, 510) for its diagnosis, characterized in that the mass of the fuel introduced through the inlet valve is determined based on the mass of the introduced fuel, expected pressure behind shut-off valve Lebanon and acknowledge locking action stop valve (400, 500, 510) insufficient if the fuel pressure downstream of the shut-off valve (400, 500, 510) differs from the expected fuel pressure. 2. Способ по п.1, в котором запирающее действие запорного клапана (400, 500, 510) признают недостаточным, если давление топлива за запорным клапаном (400, 500, 510) превышает ожидаемое давление топлива и/или если характер изменения давления отличается от ожидаемого.2. The method according to claim 1, in which the locking action of the shutoff valve (400, 500, 510) is considered insufficient if the fuel pressure behind the shutoff valve (400, 500, 510) exceeds the expected fuel pressure and / or if the nature of the pressure change is different from expected. 3. Способ по п.1, в котором при остановке двигателя внутреннего сгорания закрывают запорный клапан (400, 500, 510) и поддерживают работу двигателя до завершения диагностики.3. The method according to claim 1, in which when the internal combustion engine is stopped, the shutoff valve (400, 500, 510) is closed and the engine is maintained until the diagnosis is completed. 4. Способ по п.1, в котором при измерении давления в топливном трубопроводе (50) учитывают величину, характеризующую температуру топлива.4. The method according to claim 1, in which when measuring the pressure in the fuel pipe (50) take into account a value characterizing the temperature of the fuel. 5. Способ по п.1, в котором на основании давления и температуры определяют массу топлива в топливном трубопроводе (50), и запирающее действие запорного клапана (400, 500, 510) признают недостаточным, если масса топлива в топливном трубопроводе (50) уменьшается несоответственно массе введенного топлива.5. The method according to claim 1, in which, based on pressure and temperature, the mass of fuel in the fuel pipe (50) is determined, and the locking action of the shut-off valve (400, 500, 510) is considered insufficient if the mass of fuel in the fuel pipe (50) decreases inconsistent with the mass of fuel injected. 6. Система питания двигателя внутреннего сгорания, включающая в себя по меньшей мере один резервуар (100, 110), впускной клапан (70), запорный клапан (400, 500, 510) и устройство управления, отличающаяся тем, что устройство управления имеет для диагностики запорного клапана (400, 500, 510) исполнительный орган, выполненный таким образом, чтобы закрывать запорный клапан (400, 500, 510) для его диагностики, и средство контроля, выполненное таким образом, чтобы контролировать давление топлива за запорным клапаном (400, 500, 510), определять в зависимости от массы топлива, введенного через впускной клапан в камеру сгорания, ожидаемое давление топлива и распознавать недостаточное запирающее действие запорного клапана (400, 500, 510), если давление топлива за запорным клапаном (400, 500, 510) превышает ожидаемое давление топлива. 6. The power supply system of the internal combustion engine, including at least one reservoir (100, 110), an inlet valve (70), a shut-off valve (400, 500, 510) and a control device, characterized in that the control device has for diagnostics shut-off valve (400, 500, 510) an actuator designed to close the shut-off valve (400, 500, 510) for its diagnosis, and control means designed to control the fuel pressure behind the shut-off valve (400, 500 510), determined depending on the mass of fuel, cc If the fuel pressure behind the shut-off valve (400, 500, 510) exceeds the expected fuel pressure through the intake valve into the combustion chamber, the expected fuel pressure and recognize the insufficient locking action of the shut-off valve (400, 500, 510).
RU2009139911/06A 2007-03-30 2008-02-13 METHOD FOR DIAGNOSTIC OF VALVE VALVE RU2009139911A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007015783A DE102007015783A1 (en) 2007-03-30 2007-03-30 Method for diagnosing a shut-off valve
DE102007015783.7 2007-03-30

Publications (1)

Publication Number Publication Date
RU2009139911A true RU2009139911A (en) 2011-05-10

Family

ID=39362501

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2009139911/06A RU2009139911A (en) 2007-03-30 2008-02-13 METHOD FOR DIAGNOSTIC OF VALVE VALVE

Country Status (8)

Country Link
EP (1) EP2132473A1 (en)
JP (1) JP2010521625A (en)
KR (1) KR20100014658A (en)
CN (1) CN101646892A (en)
BR (1) BRPI0808027A2 (en)
DE (1) DE102007015783A1 (en)
RU (1) RU2009139911A (en)
WO (1) WO2008119588A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5518537B2 (en) * 2010-03-18 2014-06-11 株式会社ケーヒン Shut-off valve failure diagnosis device
JP2013104343A (en) * 2011-11-14 2013-05-30 Toyota Motor Corp Fuel shutoff valve diagnosis apparatus
JP2014118844A (en) * 2012-12-13 2014-06-30 Denso Corp Fuel injection control device of internal combustion engine
DE102014211880A1 (en) 2014-06-20 2015-12-24 Robert Bosch Gmbh A fuel delivery system and method for locating a leak in a fuel delivery system
DE102015215490A1 (en) * 2015-08-13 2017-02-16 Continental Automotive Gmbh A method of operating a fuel supply device, fuel supply device, and computer program product
DE102016207743A1 (en) * 2016-05-04 2017-11-09 Robert Bosch Gmbh Device for metering a gaseous fuel to an injector
SE540146C2 (en) * 2016-06-21 2018-04-10 Scania Cv Ab Method for determining the proper operation of a valve in a gas tank system
DE102016215323A1 (en) * 2016-08-17 2018-02-22 Bayerische Motoren Werke Aktiengesellschaft Method for operating a valve of a pressure vessel system and pressure vessel system
CN107165731B (en) * 2017-07-21 2019-06-07 中国第一汽车股份有限公司 The detection method leaked in natural gas engine pressure reducer shut-off valve
DE102020203888B4 (en) 2020-03-25 2021-10-14 Mtu Friedrichshafen Gmbh Internal combustion engine with at least one combustion chamber and method for operating an internal combustion engine
DE102020207253A1 (en) * 2020-06-10 2021-12-16 Argo Gmbh Valve device, in-tank valve and gas pressure storage system, in particular for fuel cell systems, as well as methods for detecting a leak
CN112302793B (en) * 2020-10-29 2021-08-20 潍柴动力股份有限公司 Stop valve closing detection method, stop valve closing detection device, electronic control unit, and storage medium
WO2023285572A1 (en) * 2021-07-14 2023-01-19 ComAp a.s. Single point fuel injection in multi-fuel combustion engines
WO2023285571A1 (en) * 2021-07-14 2023-01-19 ComAp a.s. Multi point fuel injection in tri-fuel combustion engines
WO2023016742A1 (en) * 2021-08-09 2023-02-16 ComAp a.s. Multi point fuel injection in bi-fuel combustion engines
DE102022209697A1 (en) * 2022-09-15 2024-03-21 Robert Bosch Gesellschaft mit beschränkter Haftung Method and system for detecting a malfunction in a fuel cell system
WO2024056212A1 (en) * 2022-09-15 2024-03-21 Robert Bosch Gmbh Method for detecting a malfunction, tank system, computer program product and storage means

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708471A1 (en) * 1987-03-16 1988-09-29 Kromschroeder Ag G METHOD AND DEVICE FOR TIGHTNESS CONTROL OF TWO VALVES ARRANGED IN A FLUID PIPE
DE19727794C1 (en) * 1997-06-30 1999-01-28 Siemens Ag Method of checking fuel line, esp. of common rail fuel injection systems for IC engines
JP3932389B2 (en) * 1998-01-19 2007-06-20 Ｓｍｃ株式会社 Mass flow controller self-diagnosis method
JP3432458B2 (en) * 1999-07-30 2003-08-04 富士通テン株式会社 Gas leak detection and fail-safe control method and apparatus for gas fueled internal combustion engine
JP2001234814A (en) * 2000-02-24 2001-08-31 Denso Corp Abnormality detector of gas fuel feed device
JP3949348B2 (en) 2000-04-20 2007-07-25 本田技研工業株式会社 Gas fuel supply device
ITTO20010276A1 (en) * 2001-03-23 2002-09-23 Fiat Ricerche SYSTEM FOR THE DIAGNOSTICS OF LEAKS FROM A GAS SUPPLY SYSTEM AND FOR THE VERIFICATION OF THE FUNCTIONING OF THE PART VALVES
DE102004005027A1 (en) * 2004-01-30 2005-08-18 Siemens Building Technologies Ag Method for leak testing a gas supply line
DE102005048456A1 (en) 2005-10-07 2007-04-12 Robert Bosch Gmbh Method for diagnosing a shut-off valve

Also Published As

Publication number Publication date
WO2008119588A1 (en) 2008-10-09
EP2132473A1 (en) 2009-12-16
KR20100014658A (en) 2010-02-10
DE102007015783A1 (en) 2008-10-02
BRPI0808027A2 (en) 2014-06-17
JP2010521625A (en) 2010-06-24
CN101646892A (en) 2010-02-10

Similar Documents

Publication Publication Date Title
RU2009139911A (en) METHOD FOR DIAGNOSTIC OF VALVE VALVE
US7661409B2 (en) Operating method and device for a gas-operated internal combustion engine
US9752539B2 (en) Method for diagnosing leaks downstream of the purge flow control orifice
US8327695B2 (en) Restricted filter diagnostic system and method
US10920692B2 (en) Active canister purge system and method for controlling the same
JP2007023833A5 (en)
EP1691063A3 (en) Stuck-open failure detection system for gas-fuel injection valve
US20090250038A1 (en) Flow sensing fuel system
US20160131065A1 (en) System and methods for cbv diagnostics
JP2017078378A (en) Diagnostic device
EP2147203A4 (en) Method and arrangement for monitoring of an injector
DE502006004887D1 (en) Pump for a fluid medium, in particular for manual use in diesel-fueled internal combustion engines
CN103388533A (en) A method for diagnosing a valve of a fluid supply line
CN101876285A (en) Be used to check functional method of fuel tank ventilation valve
US20180223762A1 (en) Abnormality diagnosis apparatus and abnormality diagnosis method for pressure sensor of internal combustion engine
RU2666498C2 (en) Method for indicating of degradation of the vehicle fuel system operation (variants)
WO2017075006A1 (en) Fuel volatility sensor system
JP4673684B2 (en) Vehicle fuel leak diagnosis system
US9677482B2 (en) Supercharging system and diagnostic method for supercharging system
US20150167621A1 (en) Method of controlling startup of vehicle
CN105209742A (en) Control apparatus and control method for internal combustion engine
KR20220049511A (en) Method and device for diagnosing leakage in crankcase ventilation line of crankcase ventilation device for internal combustion engine
CN110242468A (en) For diagnosing the method for being used for the injection device of internal combustion engine
CN110719993B (en) Plausibility test of an air quality measuring device
RU2681695C1 (en) Device for determining the technical state of cylinder-piston group of internal combustion engine

Legal Events

Date Code Title Description
FA92 Acknowledgement of application withdrawn (lack of supplementary materials submitted)

Effective date: 20120709