JPS5584867A - Ignition timing control system for internal-combustion engine - Google Patents
Ignition timing control system for internal-combustion engineInfo
- Publication number
- JPS5584867A JPS5584867A JP16049078A JP16049078A JPS5584867A JP S5584867 A JPS5584867 A JP S5584867A JP 16049078 A JP16049078 A JP 16049078A JP 16049078 A JP16049078 A JP 16049078A JP S5584867 A JPS5584867 A JP S5584867A
- Authority
- JP
- Japan
- Prior art keywords
- ignition timing
- circuit
- ignition
- constituted
- atmospheric pressure
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
- F02P5/14—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
PURPOSE:To adjust an ignition timing into a most appropriate timing in accordance with an altitude of a place where a car is running by varying one of electric elements in an adjusting circuit for adjusting the ignition timing by means of an electric signal from an atmospheric pressure sensor detecting changes of the atmospheric pressure. 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 the 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 circuit is constituted with a triangular wave producing circuit consisting of resistors 34-36, NPN transistors 75-77, PNP transistors 86, 87, diodes 100-102 and a capacitor 53, and the capacitor 53 is varied in accordance with an output of an atmospheric pressure sensor 401.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16049078A JPS5584867A (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 |
---|---|---|---|
JP16049078A JPS5584867A (en) | 1978-12-22 | 1978-12-22 | Ignition timing control system for internal-combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5584867A true JPS5584867A (en) | 1980-06-26 |
Family
ID=15716057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16049078A Pending JPS5584867A (en) | 1978-12-22 | 1978-12-22 | Ignition timing control system for internal-combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5584867A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58151363U (en) * | 1982-04-02 | 1983-10-11 | 本田技研工業株式会社 | Engine ignition timing control device |
JPS59168272A (en) * | 1983-03-15 | 1984-09-21 | Hitachi Ltd | Knock control device with highland correction |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5159128A (en) * | 1974-11-01 | 1976-05-24 | Eltra Corp |
-
1978
- 1978-12-22 JP JP16049078A patent/JPS5584867A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5159128A (en) * | 1974-11-01 | 1976-05-24 | Eltra Corp |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58151363U (en) * | 1982-04-02 | 1983-10-11 | 本田技研工業株式会社 | Engine ignition timing control device |
JPS6316867Y2 (en) * | 1982-04-02 | 1988-05-13 | ||
JPS59168272A (en) * | 1983-03-15 | 1984-09-21 | Hitachi Ltd | Knock control device with highland correction |
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