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SE0701120L - Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine - Google Patents

Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine

Info

Publication number
SE0701120L
SE0701120L SE0701120A SE0701120A SE0701120L SE 0701120 L SE0701120 L SE 0701120L SE 0701120 A SE0701120 A SE 0701120A SE 0701120 A SE0701120 A SE 0701120A SE 0701120 L SE0701120 L SE 0701120L
Authority
SE
Sweden
Prior art keywords
engine
cylinder
combustion engine
malfunctioning
identify
Prior art date
Application number
SE0701120A
Other languages
Swedish (sv)
Inventor
Bjoern Voelcker
Original Assignee
Scania Cv Abp
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 Scania Cv Abp filed Critical Scania Cv Abp
Priority to SE0701120A priority Critical patent/SE0701120L/en
Priority to PCT/SE2008/050521 priority patent/WO2008140404A1/en
Publication of SE0701120L publication Critical patent/SE0701120L/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • 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
    • F02D41/008—Controlling each cylinder individually
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/11—Testing internal-combustion engines by detecting misfire
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • F02D2041/286—Interface circuits comprising means for signal processing
    • F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation
    • 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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 15Od, 150e, 15Of) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method comprises the steps of: -generating a plurality of engine-speed values (r(t)) corresponding to at least one engine cycle of said engine; -transforming said engine-speed values (r(t)) so as generate transformed engine-speed values (FT(r(t))); -processing said transformed engine-speed values (FT(r(t))) so as to facilitate a subsequent identification step; -correlate said processed values (abs(FT(r(t)))) to at least one ordinal number; -comparing said processed values (abs(FT(r(t)))) associated with the at least one ordinal number with a predetermined threshold value (K); -identifying at least one malfunctioning fuel injector depending upon said comparison.
SE0701120A 2007-05-09 2007-05-09 Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine SE0701120L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0701120A SE0701120L (en) 2007-05-09 2007-05-09 Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine
PCT/SE2008/050521 WO2008140404A1 (en) 2007-05-09 2008-05-07 Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0701120A SE0701120L (en) 2007-05-09 2007-05-09 Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine

Publications (1)

Publication Number Publication Date
SE0701120L true SE0701120L (en) 2008-11-10

Family

ID=40002466

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0701120A SE0701120L (en) 2007-05-09 2007-05-09 Method and computer program product to identify a malfunctioning cylinder in a multi-cylinder internal combustion engine

Country Status (2)

Country Link
SE (1) SE0701120L (en)
WO (1) WO2008140404A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT10813U3 (en) * 2009-06-16 2010-03-15 Avl List Gmbh TEST ARRANGEMENT
CN102606326B (en) * 2012-04-01 2014-09-10 潍柴动力股份有限公司 Method and system for ensuring faults of oil injector
DE102012020490B3 (en) * 2012-10-10 2014-03-13 Mtu Friedrichshafen Gmbh Method for failure detection of injectors in an internal combustion engine, engine control unit and system for carrying out a method
US9624851B2 (en) * 2014-02-12 2017-04-18 GM Global Technology Operations LLC Method of operating a vehicle powertrain having a gas phase fuelable engine
GB2531155A (en) * 2015-09-21 2016-04-13 Gm Global Tech Operations Llc Method of identifying a faulty fuel injector in an internal combustion engine
GB2553561B (en) * 2016-09-08 2020-01-08 Delphi Tech Ip Ltd Engine synchronisation means

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873870A (en) * 1988-01-19 1989-10-17 Panex Corporation Micro displacement force transducer
US5278760A (en) * 1990-04-20 1994-01-11 Hitachi America, Ltd. Method and system for detecting the misfire of an internal combustion engine utilizing engine torque nonuniformity
US5269178A (en) * 1990-12-10 1993-12-14 Sensortech, L.P. Engine misfire, knock of roughness detection method and apparatus
US5771482A (en) * 1995-12-15 1998-06-23 The Ohio State University Estimation of instantaneous indicated torque in multicylinder engines
IT1298944B1 (en) * 1998-02-24 2000-02-07 Automobili Lamborghini Spa PROCEDURE FOR DETECTING FAILED EXPLOSION IN AN INTERNAL COMBUSTION ENGINE AND SYSTEM THAT PERFORMS THIS
KR100305832B1 (en) * 1999-07-21 2001-09-13 이계안 Using frequency analysis, a system and an way of detecting engine misfire

Also Published As

Publication number Publication date
WO2008140404A1 (en) 2008-11-20

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Legal Events

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