EP0452996A3 - Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor - Google Patents

Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor Download PDF

Info

Publication number
EP0452996A3
EP0452996A3 EP19910111421 EP91111421A EP0452996A3 EP 0452996 A3 EP0452996 A3 EP 0452996A3 EP 19910111421 EP19910111421 EP 19910111421 EP 91111421 A EP91111421 A EP 91111421A EP 0452996 A3 EP0452996 A3 EP 0452996A3
Authority
EP
European Patent Office
Prior art keywords
feature
control system
combustion engine
internal combustion
air
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
EP19910111421
Other versions
EP0452996B1 (en
EP0452996A2 (en
Inventor
Naoki C/O Japan Electronic Tomisawa
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.)
Hitachi Unisia Automotive Ltd
Original Assignee
Japan Electronic Control Systems Co Ltd
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
Priority claimed from JP12989387A external-priority patent/JPS63295834A/en
Priority claimed from JP13182687A external-priority patent/JPS63297752A/en
Application filed by Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Publication of EP0452996A2 publication Critical patent/EP0452996A2/en
Publication of EP0452996A3 publication Critical patent/EP0452996A3/en
Application granted granted Critical
Publication of EP0452996B1 publication Critical patent/EP0452996B1/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
    • F02D41/24—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
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
    • 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
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
    • F02D41/2448—Prohibition of learning
    • 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
    • F02D41/2477—Methods of calibrating or learning characterised by the method used for learning
    • F02D41/248—Methods of calibrating or learning characterised by the method used for learning using a plurality of learned values

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)
EP19910111421 1987-05-28 1988-05-26 Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor Expired - Lifetime EP0452996B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP12989387A JPS63295834A (en) 1987-05-28 1987-05-28 Air-fuel ratio learning control device for internal combustion engines
JP129893/87 1987-05-28
JP13182687A JPS63297752A (en) 1987-05-29 1987-05-29 Learning controller for air-fuel ratio for internal combustion engine
JP131826/87 1987-05-29

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP88108437.0 Division 1988-05-26

Publications (3)

Publication Number Publication Date
EP0452996A2 EP0452996A2 (en) 1991-10-23
EP0452996A3 true EP0452996A3 (en) 1991-11-21
EP0452996B1 EP0452996B1 (en) 1993-09-29

Family

ID=26465156

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19910111421 Expired - Lifetime EP0452996B1 (en) 1987-05-28 1988-05-26 Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor
EP19880108437 Expired EP0292973B1 (en) 1987-05-28 1988-05-26 Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19880108437 Expired EP0292973B1 (en) 1987-05-28 1988-05-26 Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor

Country Status (2)

Country Link
EP (2) EP0452996B1 (en)
DE (2) DE3884630T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6819257B2 (en) * 2015-12-15 2021-01-27 三菱自動車工業株式会社 Internal combustion engine control device
JP7188360B2 (en) * 2019-11-07 2022-12-13 トヨタ自動車株式会社 engine controller
CN118793527B (en) * 2024-09-12 2024-11-19 福建省白马船厂 Ship engine control method and system based on oil mist monitoring

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625699A (en) * 1984-08-03 1986-12-02 Toyota Jidosha Kabushiki Kaisha Method and apparatus for controlling air-fuel ratio in internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58150039A (en) * 1982-03-03 1983-09-06 Toyota Motor Corp Air-fuel ratio storage control method of electronically controlled engine
US4495919A (en) * 1984-07-26 1985-01-29 Austin Rover Group Limited Control system for air/fuel ratio adjustment system
US4854287A (en) * 1986-10-21 1989-08-08 Japan Electronic Control Systems Co., Ltd. Apparatus for learning and controlling air/fuel ratio in internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625699A (en) * 1984-08-03 1986-12-02 Toyota Jidosha Kabushiki Kaisha Method and apparatus for controlling air-fuel ratio in internal combustion engine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 205 (M-603), 3rd July 1987; & JP-A-62 023 805 (HITACHI) 31-01-1987 (Cat. A) *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 40 (M-278), 21st February 1984; & JP-A-58 195 044 (MITSUBISHI) 14-11-1983 *

Also Published As

Publication number Publication date
DE3884630T2 (en) 1994-02-03
EP0452996B1 (en) 1993-09-29
EP0452996A2 (en) 1991-10-23
EP0292973A2 (en) 1988-11-30
DE3872948T2 (en) 1993-01-14
DE3884630D1 (en) 1993-11-04
EP0292973B1 (en) 1992-07-22
EP0292973A3 (en) 1989-09-27
DE3872948D1 (en) 1992-08-27

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