JPS5726229A - Control method for air to fuel ratio of internal combustion engine - Google Patents
Control method for air to fuel ratio of internal combustion engineInfo
- Publication number
- JPS5726229A JPS5726229A JP10046880A JP10046880A JPS5726229A JP S5726229 A JPS5726229 A JP S5726229A JP 10046880 A JP10046880 A JP 10046880A JP 10046880 A JP10046880 A JP 10046880A JP S5726229 A JPS5726229 A JP S5726229A
- Authority
- JP
- Japan
- Prior art keywords
- injection time
- fuel injection
- error correction
- learning control
- engine
- 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)
Abstract
PURPOSE: To reduce the storage capacity and program quantity which are required for learning control in an electronic control fuel injection type internal combustion engine which determines the fuel injection depending upon the operation status of the engine by improving the learning control method for the error correction of the fuel injection time.
CONSTITUTION: A CPU34 calculates the basic injection time from the intake pipe negative pressure signal by a negative pressure sensor 10 and the speed of revolution signal by an angle sensor 32, applies the feedback correction corresponding to the O2 concentration in exhaust gas by an O2 sensor 18 and the correction by water temperatures to this basic injection time, and obtains the effective injection time τe. Besides, by using the added values of this effective injection time τe, ineffective injection time τv, and error correction τc, the drive time of a fuel injection valve 26 is controlled. In this case, when an engine is idly operated, the average value of the O2 concentration is obtained. The said error correction τc is determined by learning control so that this average value can be within a specified range.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10046880A JPS5726229A (en) | 1980-07-24 | 1980-07-24 | Control method for air to fuel ratio of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10046880A JPS5726229A (en) | 1980-07-24 | 1980-07-24 | Control method for air to fuel ratio of internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5726229A true JPS5726229A (en) | 1982-02-12 |
JPS6342103B2 JPS6342103B2 (en) | 1988-08-22 |
Family
ID=14274733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10046880A Granted JPS5726229A (en) | 1980-07-24 | 1980-07-24 | Control method for air to fuel ratio of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726229A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970852A (en) * | 1982-10-15 | 1984-04-21 | Nippon Carbureter Co Ltd | Air-fuel ratio control for engine |
JPS61192838A (en) * | 1985-01-14 | 1986-08-27 | フオ−ド、モ−タ−、カンパニ− | Engine control apparatus and determination of mass flow amount |
JPS61164840U (en) * | 1985-03-30 | 1986-10-13 |
-
1980
- 1980-07-24 JP JP10046880A patent/JPS5726229A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970852A (en) * | 1982-10-15 | 1984-04-21 | Nippon Carbureter Co Ltd | Air-fuel ratio control for engine |
JPS61192838A (en) * | 1985-01-14 | 1986-08-27 | フオ−ド、モ−タ−、カンパニ− | Engine control apparatus and determination of mass flow amount |
JPS61164840U (en) * | 1985-03-30 | 1986-10-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS6342103B2 (en) | 1988-08-22 |
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