JPS5584867A - Ignition timing control system for internal-combustion engine - Google Patents

Ignition timing control system for internal-combustion engine

Info

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
Application number
JP16049078A
Other languages
Japanese (ja)
Inventor
Noboru Sugiura
Takashi Yoshinari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16049078A priority Critical patent/JPS5584867A/en
Publication of JPS5584867A publication Critical patent/JPS5584867A/en
Pending legal-status Critical Current

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.
JP16049078A 1978-12-22 1978-12-22 Ignition timing control system for internal-combustion engine Pending JPS5584867A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159128A (en) * 1974-11-01 1976-05-24 Eltra Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159128A (en) * 1974-11-01 1976-05-24 Eltra Corp

Cited By (3)

* Cited by examiner, † Cited by third party
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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