JPS569635A - Feedback control of air-fuel ratio - Google Patents
Feedback control of air-fuel ratioInfo
- Publication number
- JPS569635A JPS569635A JP7227980A JP7227980A JPS569635A JP S569635 A JPS569635 A JP S569635A JP 7227980 A JP7227980 A JP 7227980A JP 7227980 A JP7227980 A JP 7227980A JP S569635 A JPS569635 A JP S569635A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- circuit
- integration
- air
- feedback control
- 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 fasten a feedback control of the air-fuel ratio of an engine and thus stabilize its performance by increasing the processing rate of an integration circuit when the load condition of the engine changes from an unloaded state to a loaded one.
CONSTITUTION: An output signal of an oxygen density sensor 1 disposed in an engine exhaust system is discriminated by a discrimination circuit 2 and input to an integration circuit 3. The output signal 3b of the circuit 3 is further fed to an electronically controlled fuel injection device 5 to control fuel injected out of a fuel injection vale 6. To the integration circuit 3 is connected a change-over switch 4 adapted to switch the integration constant from one to another in accordance with the unloaded or loaded state of the engine and rectify the integration constant output toward the injection device 5 according to the load.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7227980A JPS569635A (en) | 1980-05-29 | 1980-05-29 | Feedback control of air-fuel ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7227980A JPS569635A (en) | 1980-05-29 | 1980-05-29 | Feedback control of air-fuel ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS569635A true JPS569635A (en) | 1981-01-31 |
Family
ID=13484680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7227980A Pending JPS569635A (en) | 1980-05-29 | 1980-05-29 | Feedback control of air-fuel ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS569635A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60216044A (en) * | 1984-04-12 | 1985-10-29 | Nissan Motor Co Ltd | Air-fuel ratio controller |
JPS60224946A (en) * | 1984-04-24 | 1985-11-09 | Mazda Motor Corp | Air/fuel ratio controller for engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536818A (en) * | 1978-09-06 | 1980-03-14 | Fujitsu Fanuc Ltd | Display device |
-
1980
- 1980-05-29 JP JP7227980A patent/JPS569635A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536818A (en) * | 1978-09-06 | 1980-03-14 | Fujitsu Fanuc Ltd | Display device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60216044A (en) * | 1984-04-12 | 1985-10-29 | Nissan Motor Co Ltd | Air-fuel ratio controller |
JPS60224946A (en) * | 1984-04-24 | 1985-11-09 | Mazda Motor Corp | Air/fuel ratio controller for engine |
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