JPS57198366A - Engine ignition time control unit - Google Patents

Engine ignition time control unit

Info

Publication number
JPS57198366A
JPS57198366A JP8316881A JP8316881A JPS57198366A JP S57198366 A JPS57198366 A JP S57198366A JP 8316881 A JP8316881 A JP 8316881A JP 8316881 A JP8316881 A JP 8316881A JP S57198366 A JPS57198366 A JP S57198366A
Authority
JP
Japan
Prior art keywords
output
advance angle
circuit
ignition
detector
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
JP8316881A
Other languages
Japanese (ja)
Inventor
Hajime Maruyama
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP8316881A priority Critical patent/JPS57198366A/en
Publication of JPS57198366A publication Critical patent/JPS57198366A/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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/008—Reserve ignition systems; Redundancy of some ignition devices

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 assure the ignition regardless of malfunctions in a circuit by generating an ignition signal based on the minimum advance angle or a smaller fixed advance angle at a discriminating circuit when no spark advance angle signal appears in an electronic ignition device. CONSTITUTION:The output pulses from a detector 4 generated by disks 5, 6 of a crank shaft are fed into an inverter In1 and an FV converter, and a transistor Tr is turned on by the In1 output, momentarily charging a condenser C, then is turned off. The charged voltage a and the FV output b are compared by A1, and since the output b is increased as the number of revolutions rises and is kept at a constant level in high and low revolution regions, the output c from A1 is kept at L for a long time in the low revolution region. The discriminating circuit 10 compares the changing time of the output from an advance angle circuit 9 with that of an ignition block detector consisting of the disk 5 and the detector 3, and transmits an ignition signal which has appeared earlier. Therefor, in case no output occurs due to malfunctions of the circuit 9 or others, an ignition signal is fed at the fixed advance angle before the top dead point by theta1.
JP8316881A 1981-05-29 1981-05-29 Engine ignition time control unit Pending JPS57198366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8316881A JPS57198366A (en) 1981-05-29 1981-05-29 Engine ignition time control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8316881A JPS57198366A (en) 1981-05-29 1981-05-29 Engine ignition time control unit

Publications (1)

Publication Number Publication Date
JPS57198366A true JPS57198366A (en) 1982-12-04

Family

ID=13794733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8316881A Pending JPS57198366A (en) 1981-05-29 1981-05-29 Engine ignition time control unit

Country Status (1)

Country Link
JP (1) JPS57198366A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658786A (en) * 1986-03-25 1987-04-21 Motorola, Inc. Loss of input signal detection and response system for use with distributorless ignition systems
US4718395A (en) * 1986-01-30 1988-01-12 Mitsubishi Denki Kabushiki Kaisha Ignition control system for internal combustion engine
JPH01203658A (en) * 1988-02-09 1989-08-16 Kokusan Denki Co Ltd Ignition control device for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718395A (en) * 1986-01-30 1988-01-12 Mitsubishi Denki Kabushiki Kaisha Ignition control system for internal combustion engine
US4658786A (en) * 1986-03-25 1987-04-21 Motorola, Inc. Loss of input signal detection and response system for use with distributorless ignition systems
JPH01203658A (en) * 1988-02-09 1989-08-16 Kokusan Denki Co Ltd Ignition control device for internal combustion engine

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