JPS56115836A - Controlling device for air to fuel ratio - Google Patents
Controlling device for air to fuel ratioInfo
- Publication number
- JPS56115836A JPS56115836A JP1787780A JP1787780A JPS56115836A JP S56115836 A JPS56115836 A JP S56115836A JP 1787780 A JP1787780 A JP 1787780A JP 1787780 A JP1787780 A JP 1787780A JP S56115836 A JPS56115836 A JP S56115836A
- Authority
- JP
- Japan
- Prior art keywords
- control means
- air
- fuel ratio
- negative pressure
- suction negative
- 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
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To enable to cope with the exhaust gas regulation wufficiently by a method wherein a control condition by means of a fuel supplying amount control means in a slow main system is locked and the air to fuel ratio is controlled by means of the fuel supplying amount control means in an amount increasing system while a suction negative pressure control means is being operated.
CONSTITUTION: While the suction negative pressure control means is being operated, an ON duty data to be given to solenoids 3, 4 in the slow main system is locked immediately before a time t1 and the opening rate of a valve for an air solenoid 7 in the amount increasing system is controlled in accordance with the magnitude of the suction negative pressure to control the air to fuel ratio by means of the fuel supplying amount control means in the amount increasing system. According to this method, a fluctuation wil not be generated in the characteristics of the air to fuel ratio even if the suction negative pressure control means is operated, therefore, the exhaust gas regulation may be cleared sufficiently.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1787780A JPS56115836A (en) | 1980-02-18 | 1980-02-18 | Controlling device for air to fuel ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1787780A JPS56115836A (en) | 1980-02-18 | 1980-02-18 | Controlling device for air to fuel ratio |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56115836A true JPS56115836A (en) | 1981-09-11 |
JPS6321027B2 JPS6321027B2 (en) | 1988-05-02 |
Family
ID=11955911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1787780A Granted JPS56115836A (en) | 1980-02-18 | 1980-02-18 | Controlling device for air to fuel ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56115836A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0366527U (en) * | 1989-10-30 | 1991-06-27 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5218534A (en) * | 1975-08-05 | 1977-02-12 | Nissan Motor Co Ltd | Air fuel ration control system |
JPS5264539A (en) * | 1975-11-25 | 1977-05-28 | Nippon Denso Co Ltd | Feedback air fuel ratio type mixture controller |
JPS5287533A (en) * | 1976-01-16 | 1977-07-21 | Nissan Motor Co Ltd | Fuel control apparatus of internal combustion engine |
-
1980
- 1980-02-18 JP JP1787780A patent/JPS56115836A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5218534A (en) * | 1975-08-05 | 1977-02-12 | Nissan Motor Co Ltd | Air fuel ration control system |
JPS5264539A (en) * | 1975-11-25 | 1977-05-28 | Nippon Denso Co Ltd | Feedback air fuel ratio type mixture controller |
JPS5287533A (en) * | 1976-01-16 | 1977-07-21 | Nissan Motor Co Ltd | Fuel control apparatus of internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JPS6321027B2 (en) | 1988-05-02 |
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