JPS55148925A - Electronically controlled fuel injector - Google Patents
Electronically controlled fuel injectorInfo
- Publication number
- JPS55148925A JPS55148925A JP5493979A JP5493979A JPS55148925A JP S55148925 A JPS55148925 A JP S55148925A JP 5493979 A JP5493979 A JP 5493979A JP 5493979 A JP5493979 A JP 5493979A JP S55148925 A JPS55148925 A JP S55148925A
- Authority
- JP
- Japan
- Prior art keywords
- sucked air
- abnormality
- signal
- detector
- supplied
- 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 prevent an engine from becoming undrivable when an abnormality in when a sucked air quantity measuring system happened, by using an abnormality detector to monitor the signal of the sucked air quantity measuring system and, when an abnormality is detected, by using a device for estimating the a sucked quantity of sucked air to control the quantity of fuel to be injected.
CONSTITUTION: An abnormality detector 1 is provided to detect the improper action of a sucked air measuring system 3. The detector monitors the output signal of the measuring unit to detect abnormality. The output of the abnormality detector 1 is supplied to an abnormality indicator 6 and a signal selector 8 in a sucked air quantity estimation unit 2. A signal selector 8 selects a signal QO directly supplied from the measuring unit 3 and a signal Q1 supplied from the sucked air quntity estimation circuit 7, depending on a judgement signal (a) supplied from the abnormality detector 3 and inputs QO or Q1 to the mixing ratio controller 4 of a control unit 10. The sucked air quantity estimation circuit 7 estimates the quantity of sucked air on the basis of a signal supplied from an engine running condition detector 13 such as throttle valve opening degree detector.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5493979A JPS55148925A (en) | 1979-05-04 | 1979-05-04 | Electronically controlled fuel injector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5493979A JPS55148925A (en) | 1979-05-04 | 1979-05-04 | Electronically controlled fuel injector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55148925A true JPS55148925A (en) | 1980-11-19 |
Family
ID=12984601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5493979A Pending JPS55148925A (en) | 1979-05-04 | 1979-05-04 | Electronically controlled fuel injector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55148925A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57181939A (en) * | 1981-05-06 | 1982-11-09 | Hitachi Ltd | Fuel feed method for automobile engine |
JPS58101244A (en) * | 1981-12-14 | 1983-06-16 | Toyota Motor Corp | Abnormality detecting method and treating method of suction tube pressure signal |
US4483299A (en) * | 1982-08-12 | 1984-11-20 | Honda Motor Co., Ltd. | Method for detecting abnormality in sensor means for detecting a parameter relating to intake air quantity of an internal combustion engine |
JPS60192852A (en) * | 1984-03-15 | 1985-10-01 | Mitsubishi Motors Corp | Engine controller |
JPS60195353A (en) * | 1984-03-19 | 1985-10-03 | Toyota Motor Corp | Fuel injection control device in internal-combustion engine |
JPS60222544A (en) * | 1984-04-18 | 1985-11-07 | Mitsubishi Motors Corp | Throttle sensor trouble deciding device |
US4599696A (en) * | 1982-09-30 | 1986-07-08 | Fuji Jukogyo Kabushiki Kaisha | System for diagnosing an internal combustion engine |
US4750128A (en) * | 1982-09-11 | 1988-06-07 | Nippondenso Co., Ltd. | Air/fuel ratio control for an internal combustion engine with improved fail-safe device |
US4765299A (en) * | 1986-05-07 | 1988-08-23 | Mitsubishi Denki Kabushiki Kaisha | Failure-time control device for a fuel injection controller of an internal combustion engine |
JPS63272933A (en) * | 1987-04-30 | 1988-11-10 | Mitsubishi Electric Corp | Control device for fuel injection |
US5012422A (en) * | 1988-01-29 | 1991-04-30 | Hitachi, Ltd. | Controlling engine fuel injection |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5427632A (en) * | 1977-08-03 | 1979-03-01 | Nippon Soken Inc | Electronic controller for internal combustion engine |
-
1979
- 1979-05-04 JP JP5493979A patent/JPS55148925A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5427632A (en) * | 1977-08-03 | 1979-03-01 | Nippon Soken Inc | Electronic controller for internal combustion engine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4450815A (en) * | 1981-05-06 | 1984-05-29 | Hitachi, Ltd. | Internal combustion engine control apparatus |
JPS57181939A (en) * | 1981-05-06 | 1982-11-09 | Hitachi Ltd | Fuel feed method for automobile engine |
JPS58101244A (en) * | 1981-12-14 | 1983-06-16 | Toyota Motor Corp | Abnormality detecting method and treating method of suction tube pressure signal |
US4483299A (en) * | 1982-08-12 | 1984-11-20 | Honda Motor Co., Ltd. | Method for detecting abnormality in sensor means for detecting a parameter relating to intake air quantity of an internal combustion engine |
US4750128A (en) * | 1982-09-11 | 1988-06-07 | Nippondenso Co., Ltd. | Air/fuel ratio control for an internal combustion engine with improved fail-safe device |
US4599696A (en) * | 1982-09-30 | 1986-07-08 | Fuji Jukogyo Kabushiki Kaisha | System for diagnosing an internal combustion engine |
JPS60192852A (en) * | 1984-03-15 | 1985-10-01 | Mitsubishi Motors Corp | Engine controller |
JPH0587663B2 (en) * | 1984-03-19 | 1993-12-17 | Toyota Motor Co Ltd | |
JPS60195353A (en) * | 1984-03-19 | 1985-10-03 | Toyota Motor Corp | Fuel injection control device in internal-combustion engine |
JPS60222544A (en) * | 1984-04-18 | 1985-11-07 | Mitsubishi Motors Corp | Throttle sensor trouble deciding device |
JPH0344214B2 (en) * | 1984-04-18 | 1991-07-05 | Mitsubishi Motors Corp | |
US4765299A (en) * | 1986-05-07 | 1988-08-23 | Mitsubishi Denki Kabushiki Kaisha | Failure-time control device for a fuel injection controller of an internal combustion engine |
JPS63272933A (en) * | 1987-04-30 | 1988-11-10 | Mitsubishi Electric Corp | Control device for fuel injection |
US5012422A (en) * | 1988-01-29 | 1991-04-30 | Hitachi, Ltd. | Controlling engine fuel injection |
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