JPS5634940A - Air-fuel ratio control apparatus - Google Patents
Air-fuel ratio control apparatusInfo
- Publication number
- JPS5634940A JPS5634940A JP9885079A JP9885079A JPS5634940A JP S5634940 A JPS5634940 A JP S5634940A JP 9885079 A JP9885079 A JP 9885079A JP 9885079 A JP9885079 A JP 9885079A JP S5634940 A JPS5634940 A JP S5634940A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- circuit
- sensor
- acceleration
- 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
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 achieve a theoretical air-fuel ratio faster in a transition period of an engine operation by making the cycle of an air-fuel ratio control more frequent on the basis of signals from an O2 sensor and throttle sensor in an exhaust system.
CONSTITUTION: Each signal of an O2 sensor 19 an throttle sensor 20 is transmitted to a controller 21 so as to control solenoid valves 14, 15 which act to vary the air breed of a carburetter. A signal is transmitted from the O2 sensor 19 to a shaping circuit 23 in way of an amplifying circuit 22, into which circuit 23 a slice level is also input. By setting its center valve, an addition of signals is performed in an addition circuit 28 into which a signal corresponding to each acceleration or deceleration state is fed from the throttle sensor 20. At the same time, a change in an air- fuel ratio caused by a change in the acceleration or deceleration degree is anticipated at a super-position circuit 30 and a comparator circuit 31. On the basis of the anticipated valve, the air-fuel ratio during the acceleration or deceleration is controlled.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9885079A JPS5634940A (en) | 1979-08-02 | 1979-08-02 | Air-fuel ratio control apparatus |
GB8025002A GB2056723B (en) | 1979-08-02 | 1980-07-31 | Automatic control of air/fuel ratio in ic engines |
US06/174,377 US4356797A (en) | 1979-08-02 | 1980-08-01 | System for controlling air-fuel ratio |
DE3029325A DE3029325C2 (en) | 1979-08-02 | 1980-08-01 | Arrangement for regulating the fuel-air ratio of a carburetor of an internal combustion engine |
FR8017159A FR2463282B1 (en) | 1979-08-02 | 1980-08-04 | AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE CARBURETOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9885079A JPS5634940A (en) | 1979-08-02 | 1979-08-02 | Air-fuel ratio control apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5634940A true JPS5634940A (en) | 1981-04-07 |
JPS6254990B2 JPS6254990B2 (en) | 1987-11-17 |
Family
ID=14230703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9885079A Granted JPS5634940A (en) | 1979-08-02 | 1979-08-02 | Air-fuel ratio control apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5634940A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02211350A (en) * | 1989-02-09 | 1990-08-22 | Mitsubishi Motors Corp | Air-fuel ratio controller for internal combustion engine |
-
1979
- 1979-08-02 JP JP9885079A patent/JPS5634940A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02211350A (en) * | 1989-02-09 | 1990-08-22 | Mitsubishi Motors Corp | Air-fuel ratio controller for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JPS6254990B2 (en) | 1987-11-17 |
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