JPS57140540A - Air-fuel ratio controller - Google Patents

Air-fuel ratio controller

Info

Publication number
JPS57140540A
JPS57140540A JP1121482A JP1121482A JPS57140540A JP S57140540 A JPS57140540 A JP S57140540A JP 1121482 A JP1121482 A JP 1121482A JP 1121482 A JP1121482 A JP 1121482A JP S57140540 A JPS57140540 A JP S57140540A
Authority
JP
Japan
Prior art keywords
detecting
feedback control
stopped
detector
idling operation
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
JP1121482A
Other languages
Japanese (ja)
Other versions
JPS6059414B2 (en
Inventor
Hideaki Norimatsu
Akio Kobayashi
Shigenori Kitajima
Akira Masuda
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.)
Denso Corp
Original Assignee
NipponDenso 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
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP57011214A priority Critical patent/JPS6059414B2/en
Publication of JPS57140540A publication Critical patent/JPS57140540A/en
Publication of JPS6059414B2 publication Critical patent/JPS6059414B2/en
Expired 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
    • F02D41/02—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
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1481—Using a delaying circuit

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

PURPOSE:To surely prevent misoperation or the like, by such cnstitution that feedback control of air-fuel ratio is stopped with the lapse of a prescribed time after detecting idling operation when the feedback control is stopped in an idling state. CONSTITUTION:Outputs of a detector switch, detecting the full opening of a throttle valve 4, intake air flow meter 5, measuring intake air quantity to an engine, and a water temperature detector 8, detecting engine temperature, are input to an electronic fuel injection controller 12, and its output controls an injection valve 9. Further outputs of an oxygen concentration detector 6, detecting concentration of oxygen in an exhaust pipe 3, temperature detector 7, and the water temperature detector 8 are input to a feedback control circuit 13, and its output corrects a fuel injection amount. At idling operation when feedback control is not required, the feedback control is stopped after elapsed a prescribed time from detecting the idling operation.
JP57011214A 1982-01-27 1982-01-27 Air fuel ratio control device Expired JPS6059414B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57011214A JPS6059414B2 (en) 1982-01-27 1982-01-27 Air fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57011214A JPS6059414B2 (en) 1982-01-27 1982-01-27 Air fuel ratio control device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50068320A Division JPS5844845B2 (en) 1975-06-05 1975-06-05 kuunenhikikanshikinenriyoufunshiyaseigiyosouchi

Publications (2)

Publication Number Publication Date
JPS57140540A true JPS57140540A (en) 1982-08-31
JPS6059414B2 JPS6059414B2 (en) 1985-12-25

Family

ID=11771727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57011214A Expired JPS6059414B2 (en) 1982-01-27 1982-01-27 Air fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS6059414B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163962A2 (en) * 1984-05-07 1985-12-11 Toyota Jidosha Kabushiki Kaisha Method and apparatus for controlling air-fuel ratio in an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163962A2 (en) * 1984-05-07 1985-12-11 Toyota Jidosha Kabushiki Kaisha Method and apparatus for controlling air-fuel ratio in an internal combustion engine

Also Published As

Publication number Publication date
JPS6059414B2 (en) 1985-12-25

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