JPS6441639A - Air-fuel ratio control device for engine - Google Patents
Air-fuel ratio control device for engineInfo
- Publication number
- JPS6441639A JPS6441639A JP8082987A JP8082987A JPS6441639A JP S6441639 A JPS6441639 A JP S6441639A JP 8082987 A JP8082987 A JP 8082987A JP 8082987 A JP8082987 A JP 8082987A JP S6441639 A JPS6441639 A JP S6441639A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- control
- oxygen concentration
- detecting
- 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 improve accuracy of control of running performance and an air-fuel ratio, by a method wherein, when the detecting force of an oxygen concentration detecting means employing a detecting element formed by an oxide semiconductor is increased to a given reference value two times or more, feedback control is made on an air-fuel ratio of air-fuel mixture. CONSTITUTION:An oxygen concentration detecting means (a) employing a detecting element formed by an oxide semiconductor is provided. An air-fuel ratio control means (b) to made feedback control on an air-fuel ratio of air-fuel mixture used for combustion based on the detecting output of the oxygen concentration detecting means (a) is provided. A control starting timing set means (c) to start feedback control by means of the air-fuel ratio control means (b) when the detecting output of the oxygen concentration detecting means (a) is increased to a given reference value two times or more is provided. This constitution accurately detects oxygen concentration in exhaust gas from an engine and improves accuracy of control of running performance and an air-fuel ratio.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8082987A JPS6441639A (en) | 1987-04-01 | 1987-04-01 | Air-fuel ratio control device for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8082987A JPS6441639A (en) | 1987-04-01 | 1987-04-01 | Air-fuel ratio control device for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441639A true JPS6441639A (en) | 1989-02-13 |
Family
ID=13729302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8082987A Pending JPS6441639A (en) | 1987-04-01 | 1987-04-01 | Air-fuel ratio control device for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441639A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5720206A (en) * | 1996-01-17 | 1998-02-24 | Mitsubishi Denki Kabushiki Kaisha | Actuator device |
-
1987
- 1987-04-01 JP JP8082987A patent/JPS6441639A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5720206A (en) * | 1996-01-17 | 1998-02-24 | Mitsubishi Denki Kabushiki Kaisha | Actuator device |
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