JPS6456935A - Air-fuel ratio controller for internal combustion engine - Google Patents
Air-fuel ratio controller for internal combustion engineInfo
- Publication number
- JPS6456935A JPS6456935A JP21330887A JP21330887A JPS6456935A JP S6456935 A JPS6456935 A JP S6456935A JP 21330887 A JP21330887 A JP 21330887A JP 21330887 A JP21330887 A JP 21330887A JP S6456935 A JPS6456935 A JP S6456935A
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- 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.)
- Pending
Links
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To improve the purifying efficiency for exhaust gas by setting the aimed air-fuel ratio to a prescribed wave form having a prescribed cycle and amplitude so that the air-fuel ratio variation in which the purifying efficiency for exhaust gas becomes max. is generated and by controlling the actual air-fuel ratio. 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 varied according to at least one parameter which represents the prescribed cycle, amplitude and the operation state of the internal combustion engine 1, and is controlled so as to satisfy the optimum purifying condition of the exhaust gas purifying device 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21330887A JPS6456935A (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio controller for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21330887A JPS6456935A (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio controller for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6456935A true JPS6456935A (en) | 1989-03-03 |
Family
ID=16636981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21330887A Pending JPS6456935A (en) | 1987-08-27 | 1987-08-27 | Air-fuel ratio controller for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6456935A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4344892A1 (en) * | 1992-12-29 | 1994-07-07 | Honda Motor Co Ltd | Air-fuel ratio control device for an internal combustion engine |
WO2013153957A1 (en) * | 2012-04-09 | 2013-10-17 | 株式会社ダイセル | Method for producing hydrogenated biphenol |
-
1987
- 1987-08-27 JP JP21330887A patent/JPS6456935A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4344892A1 (en) * | 1992-12-29 | 1994-07-07 | Honda Motor Co Ltd | Air-fuel ratio control device for an internal combustion engine |
US5363648A (en) * | 1992-12-29 | 1994-11-15 | Honda Giken Kogyo Kabushiki Kaisha | A/F ratio control system for internal combustion engine |
DE4344892C2 (en) * | 1992-12-29 | 1998-04-23 | Honda Motor Co Ltd | Air-fuel ratio control device for an internal combustion engine |
WO2013153957A1 (en) * | 2012-04-09 | 2013-10-17 | 株式会社ダイセル | Method for producing hydrogenated biphenol |
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