JPS56113027A - Correction of air-fuel ratio of internal combustion engine - Google Patents
Correction of air-fuel ratio of internal combustion engineInfo
- Publication number
- JPS56113027A JPS56113027A JP1532980A JP1532980A JPS56113027A JP S56113027 A JPS56113027 A JP S56113027A JP 1532980 A JP1532980 A JP 1532980A JP 1532980 A JP1532980 A JP 1532980A JP S56113027 A JPS56113027 A JP S56113027A
- Authority
- JP
- Japan
- Prior art keywords
- starting
- fuel ratio
- air
- time
- sensor
- 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 obtain proper air-fuel ratio control, by shaping the wave form of the output signal of an O2 sensor, and obtaining interrupt signals consisting of starting- up and starting-down in level change, having the theoretical air-fuel ratio of the O2 sensor as a boundary, and correcting the air-fuel ratio according to the time ratio between starting-up and starting-down.
CONSTITUTION: In a throttle chamber 4, the bypass 26 is formed which strides the throttle valve 16 of a throttle and communicates to an intake pipe 6, and on this bypass 26, the bypass valve 62 which is on-off-controlled by a control circuit 64 is mounted. Into the control circuit 64, the starting-up and the starting-down of the output signal of an O2 sensor 70 are input as interrupt signals, and the time from starting-up to starting-down and the time from starting-down to starting-up are taken into a microcomputer, and the air-fuel ratio control is corrected so that the ratio of the time described above becomes 1.0, and thus always proper air-fuel ratio can be maintained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1532980A JPS56113027A (en) | 1980-02-08 | 1980-02-08 | Correction of air-fuel ratio of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1532980A JPS56113027A (en) | 1980-02-08 | 1980-02-08 | Correction of air-fuel ratio of internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56113027A true JPS56113027A (en) | 1981-09-05 |
Family
ID=11885735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1532980A Pending JPS56113027A (en) | 1980-02-08 | 1980-02-08 | Correction of air-fuel ratio of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56113027A (en) |
-
1980
- 1980-02-08 JP JP1532980A patent/JPS56113027A/en active Pending
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