JPS6429648A - Atmospheric pressure compensator of air-fuel ratio controller for internal combustion engine - Google Patents
Atmospheric pressure compensator of air-fuel ratio controller for internal combustion engineInfo
- Publication number
- JPS6429648A JPS6429648A JP17013388A JP17013388A JPS6429648A JP S6429648 A JPS6429648 A JP S6429648A JP 17013388 A JP17013388 A JP 17013388A JP 17013388 A JP17013388 A JP 17013388A JP S6429648 A JPS6429648 A JP S6429648A
- Authority
- JP
- Japan
- Prior art keywords
- air
- atmospheric pressure
- fuel ratio
- engine
- operating state
- 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)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To secure a proper emission characteristic by linearly compensating preset value determined in advance so as to become optimum for a specific operating state according to a variation in atmospheric pressure at the time of open loop control in the specific operating state of an engine. CONSTITUTION:Each of fuel 5, 6 of a carburetor 3 set up in an intake manifold 2 of engine 1 is connected to an air-fuel ratio control valve 9 via each of air passages 81, 82. And, when a valve body position of this air-fuel ratio control valve 9 passes through a reference position, a reed switch 23 is selected, and this selected signal is inputted into an electronic control unit 20. And, each detected signal of an oxygen sensor and an atmospheric pressure sensor 29 or the like is inputted into this ECU 20. On the other hand, the air-fuel ratio control valve 9 is controlled by the ECU 20 via a pulse motor 13. In this case, at the time of open loop control in a specific operating state of the engine 1, a preset value is linearly compensated according to a state of atmospheric pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17013388A JPS6429648A (en) | 1988-07-08 | 1988-07-08 | Atmospheric pressure compensator of air-fuel ratio controller for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17013388A JPS6429648A (en) | 1988-07-08 | 1988-07-08 | Atmospheric pressure compensator of air-fuel ratio controller for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6429648A true JPS6429648A (en) | 1989-01-31 |
JPH0361015B2 JPH0361015B2 (en) | 1991-09-18 |
Family
ID=15899270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17013388A Granted JPS6429648A (en) | 1988-07-08 | 1988-07-08 | Atmospheric pressure compensator of air-fuel ratio controller for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429648A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5313739A (en) * | 1976-06-08 | 1978-02-07 | Kegg Jack P | Caster |
JPS5692334A (en) * | 1979-12-25 | 1981-07-27 | Japan Electronic Control Syst Co Ltd | Air/fuel ratio control device equipped with signal adjustment circuit at time of driving on elevated area |
JPS56138439A (en) * | 1980-03-29 | 1981-10-29 | Mazda Motor Corp | Air-fuel ratio controller for engine |
-
1988
- 1988-07-08 JP JP17013388A patent/JPS6429648A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5313739A (en) * | 1976-06-08 | 1978-02-07 | Kegg Jack P | Caster |
JPS5692334A (en) * | 1979-12-25 | 1981-07-27 | Japan Electronic Control Syst Co Ltd | Air/fuel ratio control device equipped with signal adjustment circuit at time of driving on elevated area |
JPS56138439A (en) * | 1980-03-29 | 1981-10-29 | Mazda Motor Corp | Air-fuel ratio controller for engine |
Also Published As
Publication number | Publication date |
---|---|
JPH0361015B2 (en) | 1991-09-18 |
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