JPS6429654A - Fuel injection controlling method - Google Patents
Fuel injection controlling methodInfo
- Publication number
- JPS6429654A JPS6429654A JP18601587A JP18601587A JPS6429654A JP S6429654 A JPS6429654 A JP S6429654A JP 18601587 A JP18601587 A JP 18601587A JP 18601587 A JP18601587 A JP 18601587A JP S6429654 A JPS6429654 A JP S6429654A
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- current
- injection
- pilot injection
- microcomputer
- 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 make both of main injection and pilot injection performable with a single solenoid valve by performing the pilot injection with the injection quantity metering solenoid valve, while lowering a current valve to the solenoid valve to the specified small one at the time of termination of the pilot injection. CONSTITUTION:A current-energizing control circuit 3 is installed between an injection quantity metering solenoid valve 16 of a distributor type fuel injection pump 1 and a microcomputer 20. And, both starting and ending periods of current-energization to the solenoid valve 16 are controlled each by the microcomputer 20, while a waveform of the energized current is controlled by current- energization control circuit 3. In addition, each detected signal out of various sensor, 22, 24, 26 detecting a driving state of an engine is inputted into the microcomputer 20. And, this time, pilot injection is carried out by the solenoid valve 16, while at the time of termination of the pilot injection, a current valve in cuurent-energization to the solenoid valve 16 is lowered to such one smaller than a closing holding current value of the solenoid valve 16 without bringing it into zero.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18601587A JPS6429654A (en) | 1987-07-25 | 1987-07-25 | Fuel injection controlling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18601587A JPS6429654A (en) | 1987-07-25 | 1987-07-25 | Fuel injection controlling method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429654A true JPS6429654A (en) | 1989-01-31 |
Family
ID=16180891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18601587A Pending JPS6429654A (en) | 1987-07-25 | 1987-07-25 | Fuel injection controlling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429654A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0387533U (en) * | 1989-12-22 | 1991-09-05 | ||
JP2018080703A (en) * | 2018-01-17 | 2018-05-24 | 株式会社デンソー | Fuel injection device |
-
1987
- 1987-07-25 JP JP18601587A patent/JPS6429654A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0387533U (en) * | 1989-12-22 | 1991-09-05 | ||
JP2018080703A (en) * | 2018-01-17 | 2018-05-24 | 株式会社デンソー | Fuel injection device |
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