JPS5584861A - Ignition timing control system for internal-combustion engine - Google Patents
Ignition timing control system for internal-combustion engineInfo
- Publication number
- JPS5584861A JPS5584861A JP16048978A JP16048978A JPS5584861A JP S5584861 A JPS5584861 A JP S5584861A JP 16048978 A JP16048978 A JP 16048978A JP 16048978 A JP16048978 A JP 16048978A JP S5584861 A JPS5584861 A JP S5584861A
- Authority
- JP
- Japan
- Prior art keywords
- ignition timing
- circuit
- ignition
- capacitor
- constituted
- 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 Ignition Timing (AREA)
Abstract
PURPOSE: To enable to control an ignition timing in proportion to an output of a sensor by constituting an ignition timing adjusting circuit with a triangular wave forming circuit consisting of a constant current charging and discharging circuit for a capacitor and adjusting the ignition timing by controlling a value of the constant current for the charging side in accordance with an operating condition of an engine and the like.
CONSTITUTION: An ignitor circuit portion 200 is constituted with a monolithic integrated circuit (MIC) and an ignition is effected at a time delayed by a proper angle from a first ignition timing determined by an output of a pickup coil 3 during a switch 5 is closed, while an operation of a circuit 201 constituted with a similar MIC is stopped and the ignition is effected at the first ignition timing during the switch 5 is opened. In this case, an ignition timing adjusting curcuit is constituted with a triangular wave producing circuit consisting of resistors 34W36, NPN transistors 75W77, PNP transistors 86, 87, diodes 100W102 and a capacitor 53, and a charging current for the capacitor 53 is varied in accordance with an output of an operating condition sensor 401.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16048978A JPS5584861A (en) | 1978-12-22 | 1978-12-22 | Ignition timing control system for internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16048978A JPS5584861A (en) | 1978-12-22 | 1978-12-22 | Ignition timing control system for internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5584861A true JPS5584861A (en) | 1980-06-26 |
Family
ID=15716034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16048978A Pending JPS5584861A (en) | 1978-12-22 | 1978-12-22 | Ignition timing control system for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5584861A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313030A (en) * | 1976-07-23 | 1978-02-06 | Hitachi Ltd | Igniter for internal combustion engine |
| JPS5546058A (en) * | 1978-09-29 | 1980-03-31 | Hitachi Ltd | Ignition timing controller for internal combustion engine |
-
1978
- 1978-12-22 JP JP16048978A patent/JPS5584861A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5313030A (en) * | 1976-07-23 | 1978-02-06 | Hitachi Ltd | Igniter for internal combustion engine |
| JPS5546058A (en) * | 1978-09-29 | 1980-03-31 | Hitachi Ltd | Ignition timing controller for internal combustion engine |
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