JPS56104133A - Air-fuel ratio control device - Google Patents

Air-fuel ratio control device

Info

Publication number
JPS56104133A
JPS56104133A JP711680A JP711680A JPS56104133A JP S56104133 A JPS56104133 A JP S56104133A JP 711680 A JP711680 A JP 711680A JP 711680 A JP711680 A JP 711680A JP S56104133 A JPS56104133 A JP S56104133A
Authority
JP
Japan
Prior art keywords
signals
air
idling
circuit
condition
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
JP711680A
Other languages
Japanese (ja)
Inventor
Shigetaka Takada
Akio Yamada
Yukihiro Watanabe
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.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry 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 Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP711680A priority Critical patent/JPS56104133A/en
Publication of JPS56104133A publication Critical patent/JPS56104133A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To properly accelerate from idling condition by providing a means to change a holding value of control signal in stages corresponding to a temperature of an air-fuel ratio control device of an engine in idling.
CONSTITUTION: Signals from an O2 sensor 5 provided in an exhaust system are input to a rich-lean judging circuit 100 to be pulse-shaped by signals from a square wave oscillator 103, etc., and a step motor 20 of an actuator to control fuel and air at a carburetor is controlled by those signals at a driving circuit 121. Also, signals from a throttle switch 6 and a water temperature switch 7 are input to a comparing circuit 119 through an idle detecting circuit 111 and warming up condition detecting circuits 112W114. Then, the signals from the O2 sensor 5 are corrected by memorized values corresponding to a temperature condition at idling, and the driving circuit 121 is controlled on the basis of the operated values.
COPYRIGHT: (C)1981,JPO&Japio
JP711680A 1980-01-24 1980-01-24 Air-fuel ratio control device Pending JPS56104133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP711680A JPS56104133A (en) 1980-01-24 1980-01-24 Air-fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP711680A JPS56104133A (en) 1980-01-24 1980-01-24 Air-fuel ratio control device

Publications (1)

Publication Number Publication Date
JPS56104133A true JPS56104133A (en) 1981-08-19

Family

ID=11657110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP711680A Pending JPS56104133A (en) 1980-01-24 1980-01-24 Air-fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS56104133A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01195940A (en) * 1988-02-01 1989-08-07 Japan Electron Control Syst Co Ltd Air-fuel ratio feed back controller of internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01195940A (en) * 1988-02-01 1989-08-07 Japan Electron Control Syst Co Ltd Air-fuel ratio feed back controller of internal combustion engine

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