JPS5724426A - Control method of air-fuel ratio and its device - Google Patents
Control method of air-fuel ratio and its deviceInfo
- Publication number
- JPS5724426A JPS5724426A JP9888980A JP9888980A JPS5724426A JP S5724426 A JPS5724426 A JP S5724426A JP 9888980 A JP9888980 A JP 9888980A JP 9888980 A JP9888980 A JP 9888980A JP S5724426 A JPS5724426 A JP S5724426A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- fuel injection
- temperature sensor
- read
- wall
- 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
Abstract
PURPOSE: To achieve purification of exhaust gas of an engine without worsening feeling of its operation when the engine is warmed up or the like, by estimating fuel quantity adhering to the wall of an intake pipe on the basis of information showing load and warm up states of the engine and correcting feed quantity of fuel so as to meet the above action.
CONSTITUTION: At operation, engine speed N is firstly read from a speed counter 101 to which a speed sensor 12 is connected, and engine suction air quantity Q is read from an analog input port 104 to which an intake air temperature sensor 11, water temperature sensor 13 and wall temperature sensor 14 are connected, to calculate basic fuel injection quantity determined by N, Q. Secondly detection of an engine loaded state is performed after reading cooling water and port wall temperatures from th above described port 14. Then a difference ΔT between basic fuel injection pulse width and prescribed round function value is decided for whether +, 0 or -. For instance, if ΔT>0, an increase amount of correction in accordance with ΔT is read to correct fuel injection pulse width of a fuel injection valve 5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9888980A JPS6052301B2 (en) | 1980-07-18 | 1980-07-18 | Air fuel ratio control device |
US06/283,914 US4454847A (en) | 1980-07-18 | 1981-07-16 | Method for controlling the air-fuel ratio in an internal combustion engine |
EP81105613A EP0044537B1 (en) | 1980-07-18 | 1981-07-17 | Method for controlling the amount of fuel injected into an internal combustion engine |
DE8181105613T DE3173111D1 (en) | 1980-07-18 | 1981-07-17 | Method for controlling the amount of fuel injected into an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9888980A JPS6052301B2 (en) | 1980-07-18 | 1980-07-18 | Air fuel ratio control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5724426A true JPS5724426A (en) | 1982-02-09 |
JPS6052301B2 JPS6052301B2 (en) | 1985-11-18 |
Family
ID=14231699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9888980A Expired JPS6052301B2 (en) | 1980-07-18 | 1980-07-18 | Air fuel ratio control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052301B2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835238A (en) * | 1981-08-26 | 1983-03-01 | Nippon Denso Co Ltd | Control method of air-fuel ratio |
JPS58144640A (en) * | 1982-02-24 | 1983-08-29 | Toyota Motor Corp | Electronically controlled fuel injecting method for internal-combustion engine |
JPS58144636A (en) * | 1982-02-23 | 1983-08-29 | Toyota Motor Corp | Electronically controlled fuel injecting method for internal-combustion engine |
JPS58150042A (en) * | 1982-03-02 | 1983-09-06 | Toyota Motor Corp | Electronically controlled fuel injection method of internal-combustion engine |
JPS60162029A (en) * | 1984-02-01 | 1985-08-23 | Hitachi Ltd | Fuel injection control method of engine |
JPS6282242A (en) * | 1985-10-07 | 1987-04-15 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal combustion engine |
JPS6282247A (en) * | 1985-10-03 | 1987-04-15 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal combustion engine |
JPS6293445A (en) * | 1985-10-18 | 1987-04-28 | Honda Motor Co Ltd | Fuel feed control method on start of internal combustion engine |
JPS62237050A (en) * | 1986-04-07 | 1987-10-17 | Nissan Motor Co Ltd | Air-fuel ratio control device for internal combustion engine |
JPH06280651A (en) * | 1994-01-10 | 1994-10-04 | Hitachi Ltd | Method of controlling fuel injection of engine and device therefor |
-
1980
- 1980-07-18 JP JP9888980A patent/JPS6052301B2/en not_active Expired
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62341B2 (en) * | 1981-08-26 | 1987-01-07 | Nippon Denso Co | |
JPS5835238A (en) * | 1981-08-26 | 1983-03-01 | Nippon Denso Co Ltd | Control method of air-fuel ratio |
JPS58144636A (en) * | 1982-02-23 | 1983-08-29 | Toyota Motor Corp | Electronically controlled fuel injecting method for internal-combustion engine |
JPH059621B2 (en) * | 1982-02-23 | 1993-02-05 | Toyota Motor Co Ltd | |
JPH0423098B2 (en) * | 1982-02-24 | 1992-04-21 | Toyota Motor Co Ltd | |
JPS58144640A (en) * | 1982-02-24 | 1983-08-29 | Toyota Motor Corp | Electronically controlled fuel injecting method for internal-combustion engine |
JPS58150042A (en) * | 1982-03-02 | 1983-09-06 | Toyota Motor Corp | Electronically controlled fuel injection method of internal-combustion engine |
JPH0510490B2 (en) * | 1982-03-02 | 1993-02-09 | Toyota Motor Co Ltd | |
JPS60162029A (en) * | 1984-02-01 | 1985-08-23 | Hitachi Ltd | Fuel injection control method of engine |
JPS6282247A (en) * | 1985-10-03 | 1987-04-15 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal combustion engine |
JPS6282242A (en) * | 1985-10-07 | 1987-04-15 | Nippon Denso Co Ltd | Air-fuel ratio controller for internal combustion engine |
JPH03493B2 (en) * | 1985-10-18 | 1991-01-08 | Honda Motor Co Ltd | |
JPS6293445A (en) * | 1985-10-18 | 1987-04-28 | Honda Motor Co Ltd | Fuel feed control method on start of internal combustion engine |
JPS62237050A (en) * | 1986-04-07 | 1987-10-17 | Nissan Motor Co Ltd | Air-fuel ratio control device for internal combustion engine |
JPH06280651A (en) * | 1994-01-10 | 1994-10-04 | Hitachi Ltd | Method of controlling fuel injection of engine and device therefor |
Also Published As
Publication number | Publication date |
---|---|
JPS6052301B2 (en) | 1985-11-18 |
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