JPS57102529A - Air-fuel ratio controlling method - Google Patents
Air-fuel ratio controlling methodInfo
- Publication number
- JPS57102529A JPS57102529A JP17750380A JP17750380A JPS57102529A JP S57102529 A JPS57102529 A JP S57102529A JP 17750380 A JP17750380 A JP 17750380A JP 17750380 A JP17750380 A JP 17750380A JP S57102529 A JPS57102529 A JP S57102529A
- Authority
- JP
- Japan
- Prior art keywords
- air
- detects
- cylinder
- sensor
- fuel ratio
- 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 improve the purification rate of a controllable ternary catalyst for air-fiel ratio feed back as well as to improve the idling stability, by controlling engine cylinders in such a way that there are no difference in the air-fuel ratio among them.
CONSTITUTION: An inhaling tube 3 is provided with both an inhaled air volume sensor 11 of a potentiometer type, which detects the volume of air inhaled into an engine 1, and an inhaled air temperature sensor 12 of a thermistor type, which detects the temperature of the inhaled air. The engin 1 is provided with a water temperature sensor 13, of a thermistor type which detects the cooling water temperature, while an exhaust manifold 6 is equipped with an air-fuel ratio sensor 14, which detects the air-fuel ratio from the oxygen density in exhaust gas. In order to discriminate a cylinder from the others, a cylinder discrminating censor 16 outputs a pulse signal at the time of ignition in a cylinder No.1 or a basic cylinder. A control circuit 20 calculates the volume of injected fuel based on signals detected by each sensor, 11W16, and controls the open-valve period for five fuel injection valves each.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17750380A JPS57102529A (en) | 1980-12-16 | 1980-12-16 | Air-fuel ratio controlling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17750380A JPS57102529A (en) | 1980-12-16 | 1980-12-16 | Air-fuel ratio controlling method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57102529A true JPS57102529A (en) | 1982-06-25 |
JPS6358255B2 JPS6358255B2 (en) | 1988-11-15 |
Family
ID=16032037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17750380A Granted JPS57102529A (en) | 1980-12-16 | 1980-12-16 | Air-fuel ratio controlling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57102529A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57126527A (en) * | 1981-01-28 | 1982-08-06 | Nissan Motor Co Ltd | Air fuel ratio control and device thereof for multi- cylinder internal combustion engine |
JPS593129A (en) * | 1982-06-29 | 1984-01-09 | Nippon Denso Co Ltd | Air-to-fuel ratio control device for individual cylinder of an internal-combustion engine |
JPS5923046A (en) * | 1982-07-27 | 1984-02-06 | Mazda Motor Corp | Controller of air-fuel ratio of multi-cylinder engine |
JPS59211742A (en) * | 1983-05-18 | 1984-11-30 | Japan Electronic Control Syst Co Ltd | Memory back-up monitoring device of learning control unit of internal-combustion engine for car |
JPS6093141A (en) * | 1983-10-11 | 1985-05-24 | ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Formation of air-fuel mixture of internal combustion engine |
US4962741A (en) * | 1989-07-14 | 1990-10-16 | Ford Motor Company | Individual cylinder air/fuel ratio feedback control system |
US5613480A (en) * | 1994-06-24 | 1997-03-25 | Sanshin Kogyo Kabushiki Kaisha | Fuel control system for multiple cylinder engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52132223A (en) * | 1976-04-30 | 1977-11-05 | Nissan Motor Co Ltd | Mixed gas controlling apparatus |
JPS5420231A (en) * | 1977-07-12 | 1979-02-15 | Gen Motors Corp | System of controlling fuel of internal combustion engine |
-
1980
- 1980-12-16 JP JP17750380A patent/JPS57102529A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52132223A (en) * | 1976-04-30 | 1977-11-05 | Nissan Motor Co Ltd | Mixed gas controlling apparatus |
JPS5420231A (en) * | 1977-07-12 | 1979-02-15 | Gen Motors Corp | System of controlling fuel of internal combustion engine |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57126527A (en) * | 1981-01-28 | 1982-08-06 | Nissan Motor Co Ltd | Air fuel ratio control and device thereof for multi- cylinder internal combustion engine |
JPS593129A (en) * | 1982-06-29 | 1984-01-09 | Nippon Denso Co Ltd | Air-to-fuel ratio control device for individual cylinder of an internal-combustion engine |
JPH048616B2 (en) * | 1982-06-29 | 1992-02-17 | ||
JPS5923046A (en) * | 1982-07-27 | 1984-02-06 | Mazda Motor Corp | Controller of air-fuel ratio of multi-cylinder engine |
JPH0477139B2 (en) * | 1982-07-27 | 1992-12-07 | Mazda Motor | |
JPS59211742A (en) * | 1983-05-18 | 1984-11-30 | Japan Electronic Control Syst Co Ltd | Memory back-up monitoring device of learning control unit of internal-combustion engine for car |
JPH0328578B2 (en) * | 1983-05-18 | 1991-04-19 | Japan Electronic Control Syst | |
JPS6093141A (en) * | 1983-10-11 | 1985-05-24 | ローベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Formation of air-fuel mixture of internal combustion engine |
US4962741A (en) * | 1989-07-14 | 1990-10-16 | Ford Motor Company | Individual cylinder air/fuel ratio feedback control system |
US5613480A (en) * | 1994-06-24 | 1997-03-25 | Sanshin Kogyo Kabushiki Kaisha | Fuel control system for multiple cylinder engine |
Also Published As
Publication number | Publication date |
---|---|
JPS6358255B2 (en) | 1988-11-15 |
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