EP0781912A3 - Apparatus for determining malfunctioning of fuel injection control system - Google Patents

Apparatus for determining malfunctioning of fuel injection control system Download PDF

Info

Publication number
EP0781912A3
EP0781912A3 EP96120868A EP96120868A EP0781912A3 EP 0781912 A3 EP0781912 A3 EP 0781912A3 EP 96120868 A EP96120868 A EP 96120868A EP 96120868 A EP96120868 A EP 96120868A EP 0781912 A3 EP0781912 A3 EP 0781912A3
Authority
EP
European Patent Office
Prior art keywords
cylinder
fuel injection
computed
compensation value
determining
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.)
Granted
Application number
EP96120868A
Other languages
German (de)
French (fr)
Other versions
EP0781912B1 (en
EP0781912A2 (en
Inventor
Akira Iwai
Yoshiyasu Ito
Shigeki Hidaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0781912A2 publication Critical patent/EP0781912A2/en
Publication of EP0781912A3 publication Critical patent/EP0781912A3/en
Application granted granted Critical
Publication of EP0781912B1 publication Critical patent/EP0781912B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • 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
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D2013/0292—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation in the start-up phase, e.g. for warming-up cold engine or catalyst
    • 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
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires

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)

Abstract

A system for detecting malfunctions in an apparatus for controlling a fuel injection mechanism of a diesel engine (2) provided with a plurality of cylinders (C) is disclosed. Each cylinder (C) accommodates a piston (42) for producing rotation of a crankshaft (40) and a nozzle (4) for performing fuel injection during each reciprocation cycle of the piston (42). Injection amount of the fuel is altered based on a compensation value computed for each cylinder (C) so as to minimize a value indicating cyclic rotating speed fluctuation of the crankshaft (40) produced by each cylinder (C). The system is characterized by memory means for storing an initial data indicative of the compensation value of each cylinder (C) computed during an initial injection stage of each nozzle (4), comparing means for comparing a malfunction judgement value with a magnitude obtained by computing the difference or ratio between an actual compensation value and the initial data, and determining means for determining the malfunctioning of the apparatus when the computed magnitude exceeds the predetermined range.
EP19960120868 1995-12-25 1996-12-24 Apparatus for determining malfunctioning of fuel injection control system Expired - Lifetime EP0781912B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP33734895 1995-12-25
JP337348/95 1995-12-25
JP33734895A JPH09177587A (en) 1995-12-25 1995-12-25 Abnormality judging device for fuel injection control device

Publications (3)

Publication Number Publication Date
EP0781912A2 EP0781912A2 (en) 1997-07-02
EP0781912A3 true EP0781912A3 (en) 1999-06-02
EP0781912B1 EP0781912B1 (en) 2002-10-30

Family

ID=18307786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960120868 Expired - Lifetime EP0781912B1 (en) 1995-12-25 1996-12-24 Apparatus for determining malfunctioning of fuel injection control system

Country Status (3)

Country Link
EP (1) EP0781912B1 (en)
JP (1) JPH09177587A (en)
DE (1) DE69624549T2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3092552B2 (en) * 1997-09-16 2000-09-25 トヨタ自動車株式会社 Compression ignition type internal combustion engine
FR2795819B1 (en) * 1999-07-02 2001-09-21 Renault METHOD FOR CONTROLLING THE TORQUE OF AN INTERNAL COMBUSTION ENGINE
DE10009065A1 (en) 2000-02-25 2001-09-13 Bosch Gmbh Robert Method and device for controlling a multi-cylinder internal combustion engine
GB0705024D0 (en) * 2007-03-15 2007-04-25 Delphi Tech Inc Vehicle diagnosis device and method
US7647915B2 (en) * 2007-04-23 2010-01-19 Gm Global Technology Operations, Inc. System for controlling fuel injectors
CN105940208A (en) * 2014-01-27 2016-09-14 瓦锡兰瑞士有限公司 Injection controller and method for detection of injection equipment failure in a diesel 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
CN111997771A (en) * 2020-08-27 2020-11-27 重庆潍柴发动机有限公司 Single-cylinder power automatic correction method of multi-point injection electronic control engine
CN112282952B (en) * 2020-10-30 2022-08-05 潍柴动力股份有限公司 Engine combustion fault determination method and device
CN114687859A (en) * 2022-03-29 2022-07-01 武汉理工大学 Method, device and equipment for compensating work unevenness of engine and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125947A (en) * 1984-07-16 1986-02-05 Nippon Denso Co Ltd Correction control for fuel injection amount
US4688535A (en) * 1983-10-04 1987-08-25 Robert Bosch Gmbh Apparatus for influencing control quantities of an internal combustion engine
US5213081A (en) * 1991-09-27 1993-05-25 Mitsubishi Denki Kabushiki Kaisha Misfire sensing apparatus for an internal combustion engine
EP0650033A1 (en) * 1993-10-20 1995-04-26 Robert Bosch Gmbh Method and apparatus for monitoring the functioning of a sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688535A (en) * 1983-10-04 1987-08-25 Robert Bosch Gmbh Apparatus for influencing control quantities of an internal combustion engine
JPS6125947A (en) * 1984-07-16 1986-02-05 Nippon Denso Co Ltd Correction control for fuel injection amount
US5213081A (en) * 1991-09-27 1993-05-25 Mitsubishi Denki Kabushiki Kaisha Misfire sensing apparatus for an internal combustion engine
EP0650033A1 (en) * 1993-10-20 1995-04-26 Robert Bosch Gmbh Method and apparatus for monitoring the functioning of a sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 176 (M - 491) 20 June 1986 (1986-06-20) *

Also Published As

Publication number Publication date
EP0781912B1 (en) 2002-10-30
DE69624549T2 (en) 2003-06-18
EP0781912A2 (en) 1997-07-02
JPH09177587A (en) 1997-07-08
DE69624549D1 (en) 2002-12-05

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