JPS5786540A - Air fuel ratio controller for internal combustion engine - Google Patents
Air fuel ratio controller for internal combustion engineInfo
- Publication number
- JPS5786540A JPS5786540A JP16165380A JP16165380A JPS5786540A JP S5786540 A JPS5786540 A JP S5786540A JP 16165380 A JP16165380 A JP 16165380A JP 16165380 A JP16165380 A JP 16165380A JP S5786540 A JPS5786540 A JP S5786540A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- fuel ratio
- air fuel
- circuit
- turning
- 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 perform the smooth idling control by correcting the signal fixed as an average return signal in accordance to the operating condition when the idling operation has continued more than predetermined time and performing the fixed control on the basis of said signal.
CONSTITUTION: The signal from an air fuel ratio sensor 10 is passed through AGC circuit 16, comparator 18 and an integrating circuit 20 then compared at a comparator 24 with the saw-tooth wave produced from a saw-tooth wave generating circuit 22. The duty signal to be determined by the relation of the magnitude is transmitted through an amplifier 26 to an electromagnetic valve 12 for controlling the air fuel ratio. The signals from an r.p.m. sensitive switch 30 turning on below the setting level and a negative pressure switch 32 turning on at the negative pressure higher than predetermined level are povided to AND gate 34, while during the idling a signal to be smoothed by a smoothing circuit 38 is stored in a memory 42 through a timer circuit 36. The fixed control of the electromagnetic valve 12 is performed by the duty level to be stored during the turning-off of the switch 44.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16165380A JPS5786540A (en) | 1980-11-17 | 1980-11-17 | Air fuel ratio controller for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16165380A JPS5786540A (en) | 1980-11-17 | 1980-11-17 | Air fuel ratio controller for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5786540A true JPS5786540A (en) | 1982-05-29 |
Family
ID=15739268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16165380A Pending JPS5786540A (en) | 1980-11-17 | 1980-11-17 | Air fuel ratio controller for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5786540A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58222939A (en) * | 1982-05-28 | 1983-12-24 | Honda Motor Co Ltd | Method of controlling air fuel ratio of internal combustion engine in trouble of oxygen concentration detecting system |
JPS59192848A (en) * | 1983-04-15 | 1984-11-01 | Mitsubishi Electric Corp | Air-fuel ratio controlling apparatus |
JPS6267253A (en) * | 1985-09-19 | 1987-03-26 | Honda Motor Co Ltd | Air-fuel ratio controlling method in internal combustion engine for vehicles |
KR20190011253A (en) | 2016-05-27 | 2019-02-01 | 후지필름 와코 준야꾸 가부시키가이샤 | Phosphorus-containing electrolyte containing magnesium ions |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51149420A (en) * | 1975-06-18 | 1976-12-22 | Nissan Motor Co Ltd | Air-fuel rati o control device |
JPS5218534A (en) * | 1975-08-05 | 1977-02-12 | Nissan Motor Co Ltd | Air fuel ration control system |
JPS5272026A (en) * | 1975-10-28 | 1977-06-16 | Nissan Motor Co Ltd | Air-to-fuel rate control system |
JPS52135924A (en) * | 1976-05-10 | 1977-11-14 | Nissan Motor Co Ltd | Air fuel ratio control equipment |
JPS54158528A (en) * | 1978-06-05 | 1979-12-14 | Automob Antipollut & Saf Res Center | Air-fuel ratio controller |
-
1980
- 1980-11-17 JP JP16165380A patent/JPS5786540A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51149420A (en) * | 1975-06-18 | 1976-12-22 | Nissan Motor Co Ltd | Air-fuel rati o control device |
JPS5218534A (en) * | 1975-08-05 | 1977-02-12 | Nissan Motor Co Ltd | Air fuel ration control system |
JPS5272026A (en) * | 1975-10-28 | 1977-06-16 | Nissan Motor Co Ltd | Air-to-fuel rate control system |
JPS52135924A (en) * | 1976-05-10 | 1977-11-14 | Nissan Motor Co Ltd | Air fuel ratio control equipment |
JPS54158528A (en) * | 1978-06-05 | 1979-12-14 | Automob Antipollut & Saf Res Center | Air-fuel ratio controller |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58222939A (en) * | 1982-05-28 | 1983-12-24 | Honda Motor Co Ltd | Method of controlling air fuel ratio of internal combustion engine in trouble of oxygen concentration detecting system |
JPS639094B2 (en) * | 1982-05-28 | 1988-02-25 | Honda Motor Co Ltd | |
JPS59192848A (en) * | 1983-04-15 | 1984-11-01 | Mitsubishi Electric Corp | Air-fuel ratio controlling apparatus |
JPS6267253A (en) * | 1985-09-19 | 1987-03-26 | Honda Motor Co Ltd | Air-fuel ratio controlling method in internal combustion engine for vehicles |
KR20190011253A (en) | 2016-05-27 | 2019-02-01 | 후지필름 와코 준야꾸 가부시키가이샤 | Phosphorus-containing electrolyte containing magnesium ions |
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