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JPS562469A - Knocking detector - Google Patents

Knocking detector

Info

Publication number
JPS562469A
JPS562469A JP7874979A JP7874979A JPS562469A JP S562469 A JPS562469 A JP S562469A JP 7874979 A JP7874979 A JP 7874979A JP 7874979 A JP7874979 A JP 7874979A JP S562469 A JPS562469 A JP S562469A
Authority
JP
Japan
Prior art keywords
signal
knocking
timing
detecting
accordance
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
JP7874979A
Other languages
Japanese (ja)
Inventor
Tadayoshi Makino
Yoshio Katayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7874979A priority Critical patent/JPS562469A/en
Publication of JPS562469A publication Critical patent/JPS562469A/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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To improve detecting accuracy of knocking, by controlling the generating timing of a gate signal which extracts a knocking signal from engine vibration in accordance with the engine revolution. CONSTITUTION:A timing pickup signal is applied to an input terminal 1, then a detecting circuit 2 detects the ignition timing from the signal. Output of the detecting circuit 2 is divided by a frequency divider 3 and put in a program counter 5. A peak level detector 6 detects amplitude of the timing pickup signal to control the program counter 5 and obtain a knocking gate (knock detecting signal) in accordance with the engine revolution.
JP7874979A 1979-06-21 1979-06-21 Knocking detector Pending JPS562469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7874979A JPS562469A (en) 1979-06-21 1979-06-21 Knocking detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7874979A JPS562469A (en) 1979-06-21 1979-06-21 Knocking detector

Publications (1)

Publication Number Publication Date
JPS562469A true JPS562469A (en) 1981-01-12

Family

ID=13670533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7874979A Pending JPS562469A (en) 1979-06-21 1979-06-21 Knocking detector

Country Status (1)

Country Link
JP (1) JPS562469A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57146055A (en) * 1981-03-06 1982-09-09 Nippon Denso Co Ltd Ignition timing control device
DE4027354A1 (en) * 1989-08-31 1991-03-21 Fuji Heavy Ind Ltd METHOD FOR DETECTING KNOCKING PRODUCED IN AN INTERNAL COMBUSTION ENGINE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57146055A (en) * 1981-03-06 1982-09-09 Nippon Denso Co Ltd Ignition timing control device
JPH0321748B2 (en) * 1981-03-06 1991-03-25 Nippon Denso Kk
DE4027354A1 (en) * 1989-08-31 1991-03-21 Fuji Heavy Ind Ltd METHOD FOR DETECTING KNOCKING PRODUCED IN AN INTERNAL COMBUSTION ENGINE
US5267164A (en) * 1989-08-31 1993-11-30 Fuji Jukogyo Kabushiki Kaisha Method and system for correcting a knock detection period and for detecting knock generated in an automotive engine
DE4027354C2 (en) * 1989-08-31 1994-11-03 Fuji Heavy Ind Ltd Method and device for detecting knock in an internal combustion engine
DE4027354C3 (en) * 1989-08-31 2001-06-13 Fuji Heavy Ind Ltd Method and device for detecting knock in an internal combustion engine

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