JPS5523338A - Air-fuel-ratio controller - Google Patents
Air-fuel-ratio controllerInfo
- Publication number
- JPS5523338A JPS5523338A JP9489378A JP9489378A JPS5523338A JP S5523338 A JPS5523338 A JP S5523338A JP 9489378 A JP9489378 A JP 9489378A JP 9489378 A JP9489378 A JP 9489378A JP S5523338 A JPS5523338 A JP S5523338A
- Authority
- JP
- Japan
- Prior art keywords
- air
- circuit
- signals
- fuel
- output
- 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 compensate the delay of the detecting response of an air-fuel-ratio sensor, by discriminating air fuel ratio at a point of time when the detecting signals of the air-fuel-ratio sensor inversion change.
CONSTITUTION: The detecting signals A of an air-fuel-ratio sensor 10 that high- frequency components are removed and amplified by means of an amplification circuit 20 are guided to a discriminating circuit 30. In the circuit 30, the signals A are delayed by means of a condenser 304, a comparison level of a terminal B and the signals A are comparison discriminated and signals C are put out. When the output signals C of the circuit 30 are at high levels (not less than fixed air fuel ratio), the pulse time width of the output pulse signals F of a comparison circuit 50B of a pulse generating circuit becomes longer and the output of an integration circuit 60 continuously lowers because a period that the output of the circuit 30 puts out high levels becomes longer and the output D of an integrator 40 rises on the average, and air fuel ratio is continually enlarged by means of an air-fuel-ratio control means, thus controlling this device so that air fuel ratio reach fixed value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9489378A JPS5523338A (en) | 1978-08-03 | 1978-08-03 | Air-fuel-ratio controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9489378A JPS5523338A (en) | 1978-08-03 | 1978-08-03 | Air-fuel-ratio controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5523338A true JPS5523338A (en) | 1980-02-19 |
JPS6151138B2 JPS6151138B2 (en) | 1986-11-07 |
Family
ID=14122706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9489378A Granted JPS5523338A (en) | 1978-08-03 | 1978-08-03 | Air-fuel-ratio controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5523338A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119052A (en) * | 1982-12-25 | 1984-07-10 | Kogata Gas Reibou Gijutsu Kenkyu Kumiai | Air-fuel ratio controller for gas engine |
JPS6133934U (en) * | 1984-07-31 | 1986-03-01 | 富士重工業株式会社 | Air fuel ratio control device |
EP0312835A2 (en) * | 1987-10-22 | 1989-04-26 | Nippondenso Co., Ltd. | Control apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106732A (en) * | 1978-02-09 | 1979-08-22 | Toyota Motor Corp | Air fuel ratio control apparatus for internal combustion engine |
-
1978
- 1978-08-03 JP JP9489378A patent/JPS5523338A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106732A (en) * | 1978-02-09 | 1979-08-22 | Toyota Motor Corp | Air fuel ratio control apparatus for internal combustion engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119052A (en) * | 1982-12-25 | 1984-07-10 | Kogata Gas Reibou Gijutsu Kenkyu Kumiai | Air-fuel ratio controller for gas engine |
JPS6133934U (en) * | 1984-07-31 | 1986-03-01 | 富士重工業株式会社 | Air fuel ratio control device |
EP0312835A2 (en) * | 1987-10-22 | 1989-04-26 | Nippondenso Co., Ltd. | Control apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6151138B2 (en) | 1986-11-07 |
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