JPS5685543A - Controlling device for air-fuel ratio of engine - Google Patents
Controlling device for air-fuel ratio of engineInfo
- Publication number
- JPS5685543A JPS5685543A JP16342779A JP16342779A JPS5685543A JP S5685543 A JPS5685543 A JP S5685543A JP 16342779 A JP16342779 A JP 16342779A JP 16342779 A JP16342779 A JP 16342779A JP S5685543 A JPS5685543 A JP S5685543A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- circuit
- constant
- comparative
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To enable it to do more correctly air-fuel ratio control by a method wherein an air-fuel ratio control circuit is provided with a correction circuit which enlarges at least either of the constant of a comparative circuit and of the constant of integration circuit in proportion as the deviation of the air-fuel ratio against the set air-fuel ratio increases.
CONSTITUTION: An air-fuel control circuit 19 is provided with a circuit 20 wherein in proportion as the deviation of the air-fuel ratio against the set air-fuel ratio increases, the comparative constant of the comparative circuit 25 and the integration constant of the integration circuit are made to enlarge, while the output of the adder 26 and the output of the duty ratio control circuit 24 are corrected. In base the air- fuel ratio of gaseous mixture against the set air-fuel ratio is greatly biased either on the rich side or on the lean side, the deviation value is big and consequently the constant each of the integration circuit 24 and the comparative circuit 25 increases by the correction circuit 20. Thereby the fluctuation quantity of the actuator 16 for the main auxiliary air bleed increases and thus the air-fuel ratio control can be done under the good responsiveness.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16342779A JPS5685543A (en) | 1979-12-15 | 1979-12-15 | Controlling device for air-fuel ratio of engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16342779A JPS5685543A (en) | 1979-12-15 | 1979-12-15 | Controlling device for air-fuel ratio of engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5685543A true JPS5685543A (en) | 1981-07-11 |
Family
ID=15773687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16342779A Pending JPS5685543A (en) | 1979-12-15 | 1979-12-15 | Controlling device for air-fuel ratio of engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685543A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5963329A (en) * | 1982-10-02 | 1984-04-11 | Nippon Denso Co Ltd | Overflow timing control system for fuel injection device |
-
1979
- 1979-12-15 JP JP16342779A patent/JPS5685543A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5963329A (en) * | 1982-10-02 | 1984-04-11 | Nippon Denso Co Ltd | Overflow timing control system for fuel injection device |
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