JPS545129A - Method and apparatus for checking operation of feedback type air fuel ratio controller of engine - Google Patents

Method and apparatus for checking operation of feedback type air fuel ratio controller of engine

Info

Publication number
JPS545129A
JPS545129A JP6938677A JP6938677A JPS545129A JP S545129 A JPS545129 A JP S545129A JP 6938677 A JP6938677 A JP 6938677A JP 6938677 A JP6938677 A JP 6938677A JP S545129 A JPS545129 A JP S545129A
Authority
JP
Japan
Prior art keywords
engine
fuel ratio
air fuel
ratio controller
type 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.)
Pending
Application number
JP6938677A
Other languages
Japanese (ja)
Inventor
Hironobu Ono
Mitsuo Kawai
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
Priority to JP6938677A priority Critical patent/JPS545129A/en
Publication of JPS545129A publication Critical patent/JPS545129A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Testing Of Engines (AREA)

Abstract

PURPOSE: To provide a method an apparatus by which whether operations of an air fuel ratio controller are good or not can be judged depending upon whether predetermined signals from predetermined sections from an oxygen density sensor of an engine to the engine are within a predetermined range during running of the engine under predetermined fixed conditions.
COPYRIGHT: (C)1979,JPO&Japio
JP6938677A 1977-06-14 1977-06-14 Method and apparatus for checking operation of feedback type air fuel ratio controller of engine Pending JPS545129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6938677A JPS545129A (en) 1977-06-14 1977-06-14 Method and apparatus for checking operation of feedback type air fuel ratio controller of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6938677A JPS545129A (en) 1977-06-14 1977-06-14 Method and apparatus for checking operation of feedback type air fuel ratio controller of engine

Publications (1)

Publication Number Publication Date
JPS545129A true JPS545129A (en) 1979-01-16

Family

ID=13401088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6938677A Pending JPS545129A (en) 1977-06-14 1977-06-14 Method and apparatus for checking operation of feedback type air fuel ratio controller of engine

Country Status (1)

Country Link
JP (1) JPS545129A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638538A (en) * 1979-09-04 1981-04-13 Toyota Motor Corp Sensing method for adjusting condition of air-fuel ratio controller
JPS57184232U (en) * 1981-05-18 1982-11-22
JPS60185241U (en) * 1984-05-19 1985-12-09 日産自動車販売株式会社 Engine combustion condition diagnostic device
DE3634873A1 (en) * 1985-10-21 1987-04-23 Honda Motor Co Ltd METHOD FOR DETERMINING THE SUITABILITY OF AN EXHAUST GAS CONCENTRATION SENSOR
JPH0318653A (en) * 1989-07-18 1991-01-28 Honda Motor Co Ltd Failure detecting method for internal combustion engine control device
US5070847A (en) * 1990-02-28 1991-12-10 Honda Giken Kogyo Kabushiki Kaisha Method of detecting abnormality in fuel supply systems of internal combustion engines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246890A (en) * 1975-10-13 1977-04-14 Nissan Motor Co Ltd Circuit for detecting roubles of oxygen sensors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246890A (en) * 1975-10-13 1977-04-14 Nissan Motor Co Ltd Circuit for detecting roubles of oxygen sensors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638538A (en) * 1979-09-04 1981-04-13 Toyota Motor Corp Sensing method for adjusting condition of air-fuel ratio controller
JPS57184232U (en) * 1981-05-18 1982-11-22
JPS60185241U (en) * 1984-05-19 1985-12-09 日産自動車販売株式会社 Engine combustion condition diagnostic device
DE3634873A1 (en) * 1985-10-21 1987-04-23 Honda Motor Co Ltd METHOD FOR DETERMINING THE SUITABILITY OF AN EXHAUST GAS CONCENTRATION SENSOR
DE3634873C2 (en) * 1985-10-21 1988-10-27 Honda Giken Kogyo K.K., Tokio/Tokyo, Jp
US4887576A (en) * 1985-10-21 1989-12-19 Honda Giken Kogyo Kabushiki Kaisha Method of determining acceptability of an exhaust concentration sensor
JPH0318653A (en) * 1989-07-18 1991-01-28 Honda Motor Co Ltd Failure detecting method for internal combustion engine control device
US5070847A (en) * 1990-02-28 1991-12-10 Honda Giken Kogyo Kabushiki Kaisha Method of detecting abnormality in fuel supply systems of internal combustion engines

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