JPS5593935A - Control method of air-fuel ratio - Google Patents
Control method of air-fuel ratioInfo
- Publication number
- JPS5593935A JPS5593935A JP68079A JP68079A JPS5593935A JP S5593935 A JPS5593935 A JP S5593935A JP 68079 A JP68079 A JP 68079A JP 68079 A JP68079 A JP 68079A JP S5593935 A JPS5593935 A JP S5593935A
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- carburetor
- signal
- control method
- 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
Abstract
PURPOSE: To make an air-fuel ratio controllable in high precision, by correcting the air-fuel ratio, which has been previously controlled to a stored value, from an air- fuel ratio obtained through O2 sensor.
CONSTITUTION: Though with fuel fed to an engine EN by a carburetor CB, an actuator AC is provided in this carburetor CB to change an air-fuel ratio. On the other hand, a combustion mixture in the engine EN is sensed by an O2 sensor OS provided in an exhaust pipe and a signal of rich.lean with respect to the set value is inputted to a control circuit CU. In the control circuit CU, a deviation is detected from a set logical air-fuel ratio by this signal, and a signal processing is performed to actuate the actuator AC, and a feed back control is operated for the air-fuel ratio of the carburetor CB so to be the set logical air-fuel ratio.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP68079A JPS5593935A (en) | 1979-01-10 | 1979-01-10 | Control method of air-fuel ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP68079A JPS5593935A (en) | 1979-01-10 | 1979-01-10 | Control method of air-fuel ratio |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593935A true JPS5593935A (en) | 1980-07-16 |
JPS6253701B2 JPS6253701B2 (en) | 1987-11-11 |
Family
ID=11480461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP68079A Granted JPS5593935A (en) | 1979-01-10 | 1979-01-10 | Control method of air-fuel ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593935A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5799246A (en) * | 1980-10-18 | 1982-06-19 | Bosch Gmbh Robert | Fuel supply control apparatus of internal combustion engine |
JPS58180747A (en) * | 1982-04-19 | 1983-10-22 | Nissan Motor Co Ltd | Feedback controller of air-fuel ratio |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54130729A (en) * | 1978-03-22 | 1979-10-11 | Bosch Gmbh Robert | Method of and apparatus for determining controlled variable of internal combustion engine |
-
1979
- 1979-01-10 JP JP68079A patent/JPS5593935A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54130729A (en) * | 1978-03-22 | 1979-10-11 | Bosch Gmbh Robert | Method of and apparatus for determining controlled variable of internal combustion engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5799246A (en) * | 1980-10-18 | 1982-06-19 | Bosch Gmbh Robert | Fuel supply control apparatus of internal combustion engine |
JPS58180747A (en) * | 1982-04-19 | 1983-10-22 | Nissan Motor Co Ltd | Feedback controller of air-fuel ratio |
Also Published As
Publication number | Publication date |
---|---|
JPS6253701B2 (en) | 1987-11-11 |
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