JPS55109734A - Circuit for controlling internal combustion engine - Google Patents
Circuit for controlling internal combustion engineInfo
- Publication number
- JPS55109734A JPS55109734A JP1733279A JP1733279A JPS55109734A JP S55109734 A JPS55109734 A JP S55109734A JP 1733279 A JP1733279 A JP 1733279A JP 1733279 A JP1733279 A JP 1733279A JP S55109734 A JPS55109734 A JP S55109734A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- noises
- combustion engine
- internal combustion
- transistor
- 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
Abstract
PURPOSE: To enhance accuracy in controlling fuel injection of an internal combustion engine, by measuring output intervals of an ignition means and converting the same into a rotational signal, and preventing by use of a monostable multivibrator that measuring of the output intervals in affected by the spark noises superposed on the rotational signal.
CONSTITUTION: Fuel is supplied to fuel injection valve 18 under a specific pressure and a required of fuel is fed into cylinders during the while when the intake valve is opened. In controlling fuel injection, calculation is performed by CPU (central processing unit) for driving fuel injection valve 18 appropriately. Voltage developed at the collector of transistor 4 has a wave form with may noises. In order to obtain pulses free of such noises, the control circuit is so arranged that monostable multivibrator 6 is triggered by the collector voltage of transistor 4 and spark discharge is terminated while the multivibrator 6 is in its metastable state.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1733279A JPS55109734A (en) | 1979-02-19 | 1979-02-19 | Circuit for controlling internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1733279A JPS55109734A (en) | 1979-02-19 | 1979-02-19 | Circuit for controlling internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55109734A true JPS55109734A (en) | 1980-08-23 |
Family
ID=11941092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1733279A Pending JPS55109734A (en) | 1979-02-19 | 1979-02-19 | Circuit for controlling internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55109734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02308952A (en) * | 1989-05-24 | 1990-12-21 | Kokusan Denki Co Ltd | Control device for internal combustion engine |
-
1979
- 1979-02-19 JP JP1733279A patent/JPS55109734A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02308952A (en) * | 1989-05-24 | 1990-12-21 | Kokusan Denki Co Ltd | Control device for internal combustion engine |
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