JPS57191459A - Ignition timing controller for engine - Google Patents

Ignition timing controller for engine

Info

Publication number
JPS57191459A
JPS57191459A JP56075012A JP7501281A JPS57191459A JP S57191459 A JPS57191459 A JP S57191459A JP 56075012 A JP56075012 A JP 56075012A JP 7501281 A JP7501281 A JP 7501281A JP S57191459 A JPS57191459 A JP S57191459A
Authority
JP
Japan
Prior art keywords
circuit
detecting
knock
output
detecting circuit
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
JP56075012A
Other languages
Japanese (ja)
Inventor
Hiroshi Katada
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 JP56075012A priority Critical patent/JPS57191459A/en
Publication of JPS57191459A publication Critical patent/JPS57191459A/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
    • F02P5/145—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 electrical means
    • F02P5/15—Digital data processing
    • F02P5/152—Digital data processing dependent on pinking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (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 enhance knock-detecting efficiency by a method wherein vibrations at two arbitrary points before the top dead center are detected and a vibration signal value between the two points is held and used as a reference signal for the detection of knocking, in a device for controlling the ignition timing by detecting the knocking condition. CONSTITUTION:An output from a pulser 3 placed in proximity to a rotor 2 synchronized with the engine revolution is subjected to wave shape reforming and amplification in a pulser detecting circuit 5 and fed into a differentiating circuit 10 of a knock- detecting circuit 6 and an electronic timing control device 7 with phase control. On the other hand, a vibration signal from an engine vibration detector 8 is amplified by an amplifying circuit incorporating an operational amplifier OP1 and then fed to both a detecting circuit for the background level (which is a reference signal level for detection of the knock signal) incorporating an operational amplifier OP2 and a wave detection circuit comprising a capacitor C2. The discharge of a capacitor C1 in the background level detecting circuit is controlled by an output from the differentiating circuit 10, the difference between the output of the detecting circuit and the output of the wave detection circuit is integrated, and a knock control signal is fed out from a circuit comprising an operational amplifier OP3.
JP56075012A 1981-05-20 1981-05-20 Ignition timing controller for engine Pending JPS57191459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075012A JPS57191459A (en) 1981-05-20 1981-05-20 Ignition timing controller for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075012A JPS57191459A (en) 1981-05-20 1981-05-20 Ignition timing controller for engine

Publications (1)

Publication Number Publication Date
JPS57191459A true JPS57191459A (en) 1982-11-25

Family

ID=13563842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075012A Pending JPS57191459A (en) 1981-05-20 1981-05-20 Ignition timing controller for engine

Country Status (1)

Country Link
JP (1) JPS57191459A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640250A (en) * 1984-02-07 1987-02-03 Nissan Motor Company, Limited Method and apparatus for engine knock level control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156261A (en) * 1979-05-22 1980-12-05 Mitsubishi Motors Corp Ignition timing controller for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156261A (en) * 1979-05-22 1980-12-05 Mitsubishi Motors Corp Ignition timing controller for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640250A (en) * 1984-02-07 1987-02-03 Nissan Motor Company, Limited Method and apparatus for engine knock level control

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