JPS56156433A - Air/fuel ratio control device - Google Patents

Air/fuel ratio control device

Info

Publication number
JPS56156433A
JPS56156433A JP5969480A JP5969480A JPS56156433A JP S56156433 A JPS56156433 A JP S56156433A JP 5969480 A JP5969480 A JP 5969480A JP 5969480 A JP5969480 A JP 5969480A JP S56156433 A JPS56156433 A JP S56156433A
Authority
JP
Japan
Prior art keywords
fuel ratio
air
exhaust gas
value
deviation signal
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
JP5969480A
Other languages
Japanese (ja)
Inventor
Shunichi Kadowaki
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 JP5969480A priority Critical patent/JPS56156433A/en
Publication of JPS56156433A publication Critical patent/JPS56156433A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To allow an exhaust gas purifier to operate always in the optimum condition and enhance thereby the purifying performance by changing the setting air- fuel ratio in accordance with the engine's operating condition.
CONSTITUTION: The air-fuel ratio of mixture shall be maintained at the setting value by allowing a deviation sensing circuit 4 to give a deviation signal obtained from the exhaust gas content sensed by an exhaust gas sensor 3 in comparison with the reference value, letting a control circuit 5 output control signal based on said deviation signal, and by controlling auxiliarily the air supply or fuel feed from a fuel regulator 6 on the basis of these control signals. The control circuit 3 is fed with either the rich or lean side value of the deviation signal extended for a certain period of time, which shall vary according to the operating condition. Thus, the value of the setting air-fuel ratio can be changed.
COPYRIGHT: (C)1981,JPO&Japio
JP5969480A 1980-05-06 1980-05-06 Air/fuel ratio control device Pending JPS56156433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5969480A JPS56156433A (en) 1980-05-06 1980-05-06 Air/fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5969480A JPS56156433A (en) 1980-05-06 1980-05-06 Air/fuel ratio control device

Publications (1)

Publication Number Publication Date
JPS56156433A true JPS56156433A (en) 1981-12-03

Family

ID=13120566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5969480A Pending JPS56156433A (en) 1980-05-06 1980-05-06 Air/fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS56156433A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119335A (en) * 1983-11-30 1985-06-26 Suzuki Motor Co Ltd Air-fuel ratio control device
JPS63189640A (en) * 1987-01-30 1988-08-05 Honda Motor Co Ltd Air-fuel ratio feedback control method for internal combustion engine
JPS6480749A (en) * 1987-09-22 1989-03-27 Japan Electronic Control Syst Air-fuel ratio control device for internal combustion engine
JPH02294535A (en) * 1989-05-09 1990-12-05 Mitsubishi Motors Corp Air-fuel ratio control method for internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119335A (en) * 1983-11-30 1985-06-26 Suzuki Motor Co Ltd Air-fuel ratio control device
JPS6353365B2 (en) * 1983-11-30 1988-10-24 Suzuki Motor Co
JPS63189640A (en) * 1987-01-30 1988-08-05 Honda Motor Co Ltd Air-fuel ratio feedback control method for internal combustion engine
JPS6480749A (en) * 1987-09-22 1989-03-27 Japan Electronic Control Syst Air-fuel ratio control device for internal combustion engine
JPH02294535A (en) * 1989-05-09 1990-12-05 Mitsubishi Motors Corp Air-fuel ratio control method for internal combustion engine

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