JPS5381824A - Diagnostic device of air fuel ratio controller - Google Patents

Diagnostic device of air fuel ratio controller

Info

Publication number
JPS5381824A
JPS5381824A JP15658076A JP15658076A JPS5381824A JP S5381824 A JPS5381824 A JP S5381824A JP 15658076 A JP15658076 A JP 15658076A JP 15658076 A JP15658076 A JP 15658076A JP S5381824 A JPS5381824 A JP S5381824A
Authority
JP
Japan
Prior art keywords
fuel ratio
diagnostic device
air fuel
ratio controller
value given
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
JP15658076A
Other languages
Japanese (ja)
Other versions
JPS589264B2 (en
Inventor
Setsuzo Tachibana
Mitsuhiko Ezoe
Hidehiro Minami
Hiroshi Miwakeichi
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP15658076A priority Critical patent/JPS589264B2/en
Publication of JPS5381824A publication Critical patent/JPS5381824A/en
Publication of JPS589264B2 publication Critical patent/JPS589264B2/en
Expired 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 the detection of abnormal operation and the distinction of abnormal points in comparing the exhaust gas sensor output with at least two comparison standard values available from one value given from the range between the maximum and the minimum output of exhaust air sensor, and other value given from less than the minimum value.
COPYRIGHT: (C)1978,JPO&Japio
JP15658076A 1976-12-27 1976-12-27 Diagnostic device for air-fuel ratio control device Expired JPS589264B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15658076A JPS589264B2 (en) 1976-12-27 1976-12-27 Diagnostic device for air-fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15658076A JPS589264B2 (en) 1976-12-27 1976-12-27 Diagnostic device for air-fuel ratio control device

Publications (2)

Publication Number Publication Date
JPS5381824A true JPS5381824A (en) 1978-07-19
JPS589264B2 JPS589264B2 (en) 1983-02-19

Family

ID=15630859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15658076A Expired JPS589264B2 (en) 1976-12-27 1976-12-27 Diagnostic device for air-fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS589264B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548020U (en) * 1977-06-18 1979-01-19
JPS5638538A (en) * 1979-09-04 1981-04-13 Toyota Motor Corp Sensing method for adjusting condition of air-fuel ratio controller
JPS6026137A (en) * 1983-07-22 1985-02-09 Japan Electronic Control Syst Co Ltd Air-fuel ratio learning control device in electronic control fuel injection type internal-combustion engine
JPS61196149A (en) * 1985-02-27 1986-08-30 Fuji Heavy Ind Ltd O2 sensor deterioration alarm
US5154054A (en) * 1990-07-24 1992-10-13 Nippondenso Co., Ltd. Apparatus for detecting deterioration of oxygen sensor
JP2011252483A (en) * 2010-06-04 2011-12-15 Honda Motor Co Ltd Fuel injection control system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548020U (en) * 1977-06-18 1979-01-19
JPS5638538A (en) * 1979-09-04 1981-04-13 Toyota Motor Corp Sensing method for adjusting condition of air-fuel ratio controller
JPS6026137A (en) * 1983-07-22 1985-02-09 Japan Electronic Control Syst Co Ltd Air-fuel ratio learning control device in electronic control fuel injection type internal-combustion engine
JPS61196149A (en) * 1985-02-27 1986-08-30 Fuji Heavy Ind Ltd O2 sensor deterioration alarm
US5154054A (en) * 1990-07-24 1992-10-13 Nippondenso Co., Ltd. Apparatus for detecting deterioration of oxygen sensor
JP2011252483A (en) * 2010-06-04 2011-12-15 Honda Motor Co Ltd Fuel injection control system

Also Published As

Publication number Publication date
JPS589264B2 (en) 1983-02-19

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