JPS5742821A - Knocking vibration detector - Google Patents

Knocking vibration detector

Info

Publication number
JPS5742821A
JPS5742821A JP55118028A JP11802880A JPS5742821A JP S5742821 A JPS5742821 A JP S5742821A JP 55118028 A JP55118028 A JP 55118028A JP 11802880 A JP11802880 A JP 11802880A JP S5742821 A JPS5742821 A JP S5742821A
Authority
JP
Japan
Prior art keywords
knocking
signal
distance
discriminator
constitution
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
JP55118028A
Other languages
Japanese (ja)
Inventor
Kazunori Noso
Norimasa Kishi
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP55118028A priority Critical patent/JPS5742821A/en
Publication of JPS5742821A publication Critical patent/JPS5742821A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/225—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Engines (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To detect knocking on any operation condition by comparing a parameter, showing the spectral shape of an engine vibration signal, with a reference parameter showing that featuring the occurrence of knocking. CONSTITUTION:Vibrations of an engine body are converted by a nonresonant signal detection part 10 into an electric signal, which is inputted to a digital filter 11. On receiving the signal from the detection part 10, the filter 11 performs A/D conversion H and finds PARCOR coefficients K1-Kq, used to discriminate knocking, by using one-sample time delay circuits D1-Dq to send the results to a discriminator 12. The discriminator 12 calculates distance (d) by a distance calculator 13 on the basis of the output of a reference coefficient generator 14 corresponding to the rotational frequency of the engine predetermined corresponding to the occurring knocking and coefficients K1-Kq to make a comparison with a reference value (r). When the distance (d) is less than the reference value (r), a knocking detection signal is generated. This constitution like this detects the knocking with sufficient precision and also improves response characteristics.
JP55118028A 1980-08-27 1980-08-27 Knocking vibration detector Pending JPS5742821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55118028A JPS5742821A (en) 1980-08-27 1980-08-27 Knocking vibration detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55118028A JPS5742821A (en) 1980-08-27 1980-08-27 Knocking vibration detector

Publications (1)

Publication Number Publication Date
JPS5742821A true JPS5742821A (en) 1982-03-10

Family

ID=14726264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55118028A Pending JPS5742821A (en) 1980-08-27 1980-08-27 Knocking vibration detector

Country Status (1)

Country Link
JP (1) JPS5742821A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102779A2 (en) * 1982-08-12 1984-03-14 Bl Technology Limited Method and apparatus for detecting knock in a spark ignition engine
JPS5973750A (en) * 1982-10-20 1984-04-26 Matsushita Electric Ind Co Ltd Knocking detecting apparatus
JPS6033026A (en) * 1983-08-04 1985-02-20 Toyota Motor Corp Method and device for detecting knocking of internal combustion engine
US4991553A (en) * 1989-04-14 1991-02-12 Hitachi, Ltd. Engine controller equipped with knocking detector
JPH0347449A (en) * 1989-04-14 1991-02-28 Hitachi Ltd Knocking sensing device and engine control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102779A2 (en) * 1982-08-12 1984-03-14 Bl Technology Limited Method and apparatus for detecting knock in a spark ignition engine
US4584869A (en) * 1982-08-12 1986-04-29 Bl Technology Limited Method and apparatus for detecting knock in a spark ignition engine
JPS5973750A (en) * 1982-10-20 1984-04-26 Matsushita Electric Ind Co Ltd Knocking detecting apparatus
JPS6033026A (en) * 1983-08-04 1985-02-20 Toyota Motor Corp Method and device for detecting knocking of internal combustion engine
JPH0326779B2 (en) * 1983-08-04 1991-04-11 Toyota Jidosha Kk
US4991553A (en) * 1989-04-14 1991-02-12 Hitachi, Ltd. Engine controller equipped with knocking detector
JPH0347449A (en) * 1989-04-14 1991-02-28 Hitachi Ltd Knocking sensing device and engine control device

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