JPS56151248A - Controlling device for air-fuel ratio - Google Patents
Controlling device for air-fuel ratioInfo
- Publication number
- JPS56151248A JPS56151248A JP5340780A JP5340780A JPS56151248A JP S56151248 A JPS56151248 A JP S56151248A JP 5340780 A JP5340780 A JP 5340780A JP 5340780 A JP5340780 A JP 5340780A JP S56151248 A JPS56151248 A JP S56151248A
- Authority
- JP
- Japan
- Prior art keywords
- control
- air
- rom10
- fuel ratio
- memorized
- 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
Abstract
PURPOSE: To rationalize the air-fuel ratio by memorizing the dury ratio for feedback control in the various operational conditions of an engine beforehand in accordance with the number of revolutions and load and by continuing the control in accordance with memorized values at th time of transitional operation.
CONSTITUTION: A control unit 7 for feedback control is provided with a microprocessor 8, an input-output control circuit 9 and ROM10, RAM11 as memory circuits. In the ROM10, the duty ratio according to signals from a revolution-speed detecting means 13 and form a detecting means 14 for the load of intake negative pressure is memorized beforehand. And, at the time of normal operation, the control of air bleed of a carburetor is performed based on a signal from an air-fuel ratio sensor 12, while at the time of transitional operation the control is conducted on the basis of the duty ratio memorized in the ROM10.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5340780A JPS56151248A (en) | 1980-04-22 | 1980-04-22 | Controlling device for air-fuel ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5340780A JPS56151248A (en) | 1980-04-22 | 1980-04-22 | Controlling device for air-fuel ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56151248A true JPS56151248A (en) | 1981-11-24 |
Family
ID=12941963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5340780A Pending JPS56151248A (en) | 1980-04-22 | 1980-04-22 | Controlling device for air-fuel ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56151248A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60201064A (en) * | 1984-03-26 | 1985-10-11 | Yanmar Diesel Engine Co Ltd | Air-fuel ratio controlling device for gas engine |
JPS6120538A (en) * | 1984-07-06 | 1986-01-29 | 株式会社島津製作所 | Ultrasonic diagnostic apparatus |
-
1980
- 1980-04-22 JP JP5340780A patent/JPS56151248A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60201064A (en) * | 1984-03-26 | 1985-10-11 | Yanmar Diesel Engine Co Ltd | Air-fuel ratio controlling device for gas engine |
JPH0251067B2 (en) * | 1984-03-26 | 1990-11-06 | Yanmar Diesel Engine Co | |
JPS6120538A (en) * | 1984-07-06 | 1986-01-29 | 株式会社島津製作所 | Ultrasonic diagnostic apparatus |
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