SE0701121L - Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine - Google Patents

Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine

Info

Publication number
SE0701121L
SE0701121L SE0701121A SE0701121A SE0701121L SE 0701121 L SE0701121 L SE 0701121L SE 0701121 A SE0701121 A SE 0701121A SE 0701121 A SE0701121 A SE 0701121A SE 0701121 L SE0701121 L SE 0701121L
Authority
SE
Sweden
Prior art keywords
cylinder
data set
identifying
combustion engine
malfunctioning
Prior art date
Application number
SE0701121A
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 SE0701121A priority Critical patent/SE0701121L/en
Priority to PCT/SE2008/050519 priority patent/WO2008140403A1/en
Publication of SE0701121L publication Critical patent/SE0701121L/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
    • F02D41/009—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 present invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 150d, 150e, 150f) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method comprises the step of generating a first data set (r(t)) comprising engine-speed values (rl-r20; rl-rl20) corresponding to at least one cylinder of said engine. The method also comprises the step of processing said first data set (r(t)) so as to generate a second data set (s(t)) depending upon said first data set (r(t)). The method further comprises the steps of processing said second data set (s(t)) so as to establish a detection value (d(t)), and comparing said detection value (d(t)) with a predetermined threshold value (K), and identifying at least one malfunctioning fuel injector depending upon said comparison, and weighting of said second data set by means of a weight vector during the step of establishing the detection value.
SE0701121A 2007-05-09 2007-05-09 Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine SE0701121L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0701121A SE0701121L (en) 2007-05-09 2007-05-09 Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine
PCT/SE2008/050519 WO2008140403A1 (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
SE0701121A SE0701121L (en) 2007-05-09 2007-05-09 Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine

Publications (1)

Publication Number Publication Date
SE0701121L true SE0701121L (en) 2008-11-10

Family

ID=40002465

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0701121A SE0701121L (en) 2007-05-09 2007-05-09 Method and computer program product for identifying a malfunctioning cylinder of a multi-cylinder internal combustion engine

Country Status (2)

Country Link
SE (1) SE0701121L (en)
WO (1) WO2008140403A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5044195A (en) * 1990-08-24 1991-09-03 Ford Motor Company Misfire detection in an internal combustion engine
WO1993020427A1 (en) * 1992-03-30 1993-10-14 Purdue Research Foundation Error correction in measures of speed, acceleration, misfire detection and roughness
US5515720A (en) * 1994-07-25 1996-05-14 Motorola, Inc. Acceleration based misfire detection system and method with improved signal fidelity
US5699253A (en) * 1995-04-05 1997-12-16 Ford Global Technologies, Inc. Nonlinear dynamic transform for correction of crankshaft acceleration having torsional oscillations
US6885932B2 (en) * 2003-08-08 2005-04-26 Motorola, Inc. Misfire detection in an internal combustion engine

Also Published As

Publication number Publication date
WO2008140403A1 (en) 2008-11-20

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Legal Events

Date Code Title Description
NAV Patent application has lapsed