JPS643264A - Ignition device for internal combustion engine - Google Patents
Ignition device for internal combustion engineInfo
- Publication number
- JPS643264A JPS643264A JP15803287A JP15803287A JPS643264A JP S643264 A JPS643264 A JP S643264A JP 15803287 A JP15803287 A JP 15803287A JP 15803287 A JP15803287 A JP 15803287A JP S643264 A JPS643264 A JP S643264A
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- current
- electrifying
- ignition coil
- engine
- 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
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
PURPOSE:To prevent an igniting operation which is carried out except in a regular position by forming a controlling mechanism so as to gently cut off a current for electrifying an ignition coil at the time of the stoppage of an engine or operating a stopping switch. CONSTITUTION:At the time of an ordinary operation, as a power transistor 104 is turned off, a current for electrifying an ignition coil 105 is cut off and an ignition plug 106 is ignited by a high voltage generated in its secondary coil. When an engine is stopped with the ignition coil 105 being in an electrified condition, the potential of a D point is gently lowered gradually reducing the base current of the power transistor 104 and, accordingly, the current for electrifying the ignition coil 105 is gradually reduced without generating the spark discharge of the ignition plug 106. Also, at the time of operating a stopping switch 117, the current for electrifying the ignition coil 105 is gradually reduced accompanying the gradually reducing potential at the D point, thereby preventing the spark discharge of the ignition plug 106. As a result, the erroneous stoppage of the engine or ignition which takes place except in a regular position can be prevented.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15803287A JPS643264A (en) | 1987-06-25 | 1987-06-25 | Ignition device for internal combustion engine |
| US07/211,013 US4893605A (en) | 1987-06-25 | 1988-06-24 | Ignition device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15803287A JPS643264A (en) | 1987-06-25 | 1987-06-25 | Ignition device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643264A true JPS643264A (en) | 1989-01-09 |
Family
ID=15662782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15803287A Pending JPS643264A (en) | 1987-06-25 | 1987-06-25 | Ignition device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009293583A (en) * | 2008-06-09 | 2009-12-17 | Mitsubishi Electric Corp | Electronic control unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187576A (en) * | 1985-02-14 | 1986-08-21 | Oki Electric Ind Co Ltd | Engine ignition control device |
-
1987
- 1987-06-25 JP JP15803287A patent/JPS643264A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61187576A (en) * | 1985-02-14 | 1986-08-21 | Oki Electric Ind Co Ltd | Engine ignition control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009293583A (en) * | 2008-06-09 | 2009-12-17 | Mitsubishi Electric Corp | Electronic control unit |
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