EP0812983A3 - A malfunction determining apparatus of an exhaust gas recirculation system - Google Patents

A malfunction determining apparatus of an exhaust gas recirculation system Download PDF

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Publication number
EP0812983A3
EP0812983A3 EP97108755A EP97108755A EP0812983A3 EP 0812983 A3 EP0812983 A3 EP 0812983A3 EP 97108755 A EP97108755 A EP 97108755A EP 97108755 A EP97108755 A EP 97108755A EP 0812983 A3 EP0812983 A3 EP 0812983A3
Authority
EP
European Patent Office
Prior art keywords
opening degree
valve opening
eliftd
exhaust gas
actual
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
EP97108755A
Other languages
German (de)
French (fr)
Other versions
EP0812983A2 (en
EP0812983B1 (en
Inventor
Masatomo Yoshihara
Tokiji Ito
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 EP0812983A2 publication Critical patent/EP0812983A2/en
Publication of EP0812983A3 publication Critical patent/EP0812983A3/en
Application granted granted Critical
Publication of EP0812983B1 publication Critical patent/EP0812983B1/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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F02M26/56—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves
    • F02M26/57—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves using electronic means, e.g. electromagnetic 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
    • F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/48—EGR valve position sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

A malfunction determining apparatus of an exhaust gas recirculation system (1) performs an accurate determination of malfunctioning of an EGR valve (4) based on an amount of change in the actual degree of opening of the EGR valve (4). The EGR valve (4) is provided between an exhaust passage (10) and an intake passage (9) of an internal combustion engine (2) of a vehicle. An actual valve opening degree detector detects an actual valve opening degree (ELIFTD) of the EGR valve (4). A target valve opening degree calculator calculates a target valve opening degree (ETLIFTD) of the EGR valve (4). A malfunction determining part calculates an amount of change (ELIFTD-ELIFTD1) in the actual valve opening degree (ELIFTD) when an amount of change (ETLIFTD-ETLIFTD1) in the target valve opening degree is equal to or greater than a predetermined value (α) so as to determine an occurrence of malfunction in the exhaust gas recirculation system (1) based on a comparison between the amount of change (ELIFTD-ELIFTD1) in the actual valve opening degree (ELIFTD) and a second predetermined value (β).
EP97108755A 1996-06-12 1997-06-02 A malfunction determining apparatus of an exhaust gas recirculation system Expired - Lifetime EP0812983B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP151303/96 1996-06-12
JP8151303A JP2845198B2 (en) 1996-06-12 1996-06-12 Abnormality determination device for exhaust gas recirculation device
JP15130396 1996-06-12

Publications (3)

Publication Number Publication Date
EP0812983A2 EP0812983A2 (en) 1997-12-17
EP0812983A3 true EP0812983A3 (en) 1998-07-01
EP0812983B1 EP0812983B1 (en) 2002-01-30

Family

ID=15515731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108755A Expired - Lifetime EP0812983B1 (en) 1996-06-12 1997-06-02 A malfunction determining apparatus of an exhaust gas recirculation system

Country Status (3)

Country Link
EP (1) EP0812983B1 (en)
JP (1) JP2845198B2 (en)
DE (1) DE69710127T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10122058A (en) * 1996-10-16 1998-05-12 Toyota Motor Corp Exhaust gas recirculating device for internal combustion engine
FR2836517B1 (en) * 2002-02-25 2004-05-28 Renault METHOD AND DEVICE FOR DIAGNOSING THE OPERATING STATE OF AN EXHAUST GAS RECIRCULATION VALVE OF AN INTERNAL COMBUSTION ENGINE
JP3846381B2 (en) * 2002-08-23 2006-11-15 トヨタ自動車株式会社 Abnormality diagnosis device for exhaust gas recirculation system
JP4531597B2 (en) * 2005-03-15 2010-08-25 本田技研工業株式会社 Control device for internal combustion engine
CN113090421B (en) * 2021-04-20 2022-08-05 潍柴动力股份有限公司 Detection method and device of EGR (exhaust gas Recirculation) system
CN114962039B (en) * 2022-06-29 2023-04-28 东风汽车集团股份有限公司 Performance failure monitoring method for EGR valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123345A (en) * 1979-03-12 1980-09-22 Toyota Motor Corp Exhaust gas reflux apparatus
JPS59185857A (en) * 1983-04-05 1984-10-22 Honda Motor Co Ltd Exhaust feedback amount control method for internal- combustion engine
US4541398A (en) * 1983-06-30 1985-09-17 Honda Giken Kogyo Kabushiki Kaisha Method of controlling an exhaust gas recirculating valve in an internal combustion engine
DE3532783A1 (en) * 1984-09-13 1986-03-13 Honda Giken Kogyo K.K., Tokio/Tokyo METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION VALVE PROVIDED IN AN INTERNAL COMBUSTION ENGINE
US5113835A (en) * 1990-08-21 1992-05-19 Honda Giken Kogyo K.K. (Honda Motor Co., Ltd. In English) Method of controlling exhaust gas recirculation for an internal combustion engine
JPH08100710A (en) * 1994-09-30 1996-04-16 Mitsubishi Motors Corp Failure diagnostic device for exhaust gas recirculating device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123345A (en) * 1979-03-12 1980-09-22 Toyota Motor Corp Exhaust gas reflux apparatus
JPS59185857A (en) * 1983-04-05 1984-10-22 Honda Motor Co Ltd Exhaust feedback amount control method for internal- combustion engine
US4541398A (en) * 1983-06-30 1985-09-17 Honda Giken Kogyo Kabushiki Kaisha Method of controlling an exhaust gas recirculating valve in an internal combustion engine
DE3532783A1 (en) * 1984-09-13 1986-03-13 Honda Giken Kogyo K.K., Tokio/Tokyo METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION VALVE PROVIDED IN AN INTERNAL COMBUSTION ENGINE
US5113835A (en) * 1990-08-21 1992-05-19 Honda Giken Kogyo K.K. (Honda Motor Co., Ltd. In English) Method of controlling exhaust gas recirculation for an internal combustion engine
JPH08100710A (en) * 1994-09-30 1996-04-16 Mitsubishi Motors Corp Failure diagnostic device for exhaust gas recirculating device
US5542400A (en) * 1994-09-30 1996-08-06 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Apparatus and method for determining a failure of an EGR apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 171 (M - 044) 26 November 1980 (1980-11-26) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 046 (M - 360) 27 February 1985 (1985-02-27) *

Also Published As

Publication number Publication date
EP0812983A2 (en) 1997-12-17
JPH09329062A (en) 1997-12-22
JP2845198B2 (en) 1999-01-13
EP0812983B1 (en) 2002-01-30
DE69710127D1 (en) 2002-03-14
DE69710127T2 (en) 2002-06-27

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