JPS56104133A - Air-fuel ratio control device - Google Patents
Air-fuel ratio control deviceInfo
- 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
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
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)
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 |
-
1980
- 1980-01-24 JP JP711680A patent/JPS56104133A/en active Pending
Cited By (1)
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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