JPS6456936A - Air-fuel ratio controller for internal combustion engine - Google Patents
Air-fuel ratio controller for internal combustion engineInfo
- Publication number
- JPS6456936A JPS6456936A JP21330987A JP21330987A JPS6456936A JP S6456936 A JPS6456936 A JP S6456936A JP 21330987 A JP21330987 A JP 21330987A JP 21330987 A JP21330987 A JP 21330987A JP S6456936 A JPS6456936 A JP S6456936A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- exhaust gas
- combustion engine
- internal combustion
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To improve the purifying efficiency for exhaust gas by controlling the duty ratio between on the lean side and rich side of the aimed air-fuel ratio so that the air-fuel ratio variation in which the purifying efficiency of an exhaust gas purifying device becomes max. is generated. CONSTITUTION:A wide range air-fuel ratio sensor 8 installed in the exhaust pipe 7 of an internal combustion engine 1 detects the air-fuel ratio in the range from a rich side to a lean side. A controller 9 feedback-controls an injector 6 installed in a suction pipe 2 so that the actual value detected by the sensor 8 accords with a previously set aimed value. Further, an exhaust gas purifying device 10 is installed in the exhaust pipe 7. In this constitution, the driving pulse width of the injector 6 is vibrated in a prescribed wave form, and the duty ratio between on the lean side and rich side of the vibration wave form is controlled, and the fuel feed quantity is controlled so that the optimum purifying condition of the exhaust gas purifying device 10 is satisfied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213309A JP2531525B2 (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio control device for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213309A JP2531525B2 (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio control device for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6456936A true JPS6456936A (en) | 1989-03-03 |
JP2531525B2 JP2531525B2 (en) | 1996-09-04 |
Family
ID=16637000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62213309A Expired - Fee Related JP2531525B2 (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio control device for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2531525B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10131790A (en) * | 1996-10-29 | 1998-05-19 | Honda Motor Co Ltd | Air-fuel ratio control device for internal combustion engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58174142A (en) * | 1982-04-06 | 1983-10-13 | Mitsubishi Electric Corp | Feedback controller of air fuel ratio in internal-combustion engine |
-
1987
- 1987-08-27 JP JP62213309A patent/JP2531525B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58174142A (en) * | 1982-04-06 | 1983-10-13 | Mitsubishi Electric Corp | Feedback controller of air fuel ratio in internal-combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10131790A (en) * | 1996-10-29 | 1998-05-19 | Honda Motor Co Ltd | Air-fuel ratio control device for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JP2531525B2 (en) | 1996-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |