JPS5654964A - Ignition system with knocking signal detector - Google Patents

Ignition system with knocking signal detector

Info

Publication number
JPS5654964A
JPS5654964A JP13002279A JP13002279A JPS5654964A JP S5654964 A JPS5654964 A JP S5654964A JP 13002279 A JP13002279 A JP 13002279A JP 13002279 A JP13002279 A JP 13002279A JP S5654964 A JPS5654964 A JP S5654964A
Authority
JP
Japan
Prior art keywords
amplification rate
amplifier
signal
engine
knocking
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
JP13002279A
Other languages
Japanese (ja)
Inventor
Hiroyo Fujino
Noboru Sugiura
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 JP13002279A priority Critical patent/JPS5654964A/en
Publication of JPS5654964A publication Critical patent/JPS5654964A/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
    • F02P5/1521—Digital data processing dependent on pinking with particular means during a transient phase, e.g. starting, acceleration, deceleration, gear change
    • 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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To prevent erroneous operations in a captioned system by controlling the amplification rate of an amplifier to amplify the knocking frequency components in vibration signals by the number of revolutions of an engine for improving the discrimination between backgroud noises and a knocking signal. CONSTITUTION:Vibrations of an internal combustion engine are converted into electric signals by a knock sensor, and knocking frequency components obtained by filtering these signals through a band-pass filter are amplified in an amplifier. Then, the output therefrom and a voltage proportional to the backgroud noise components contained therein are compared in a comparator to obtain a knock signal. Contorlling is made by an ignition control part B so that the time of ignition may be delayed by the signal thereof. In this system, the amplification rate of the said amplifier in a knock detection part A is controlled by the number of revolutions of the engine. The control of this amplification rate is made, for example, by reducing the amplification rate by a fixed value only at the time of high-speed revolution when background noises are increased.
JP13002279A 1979-10-11 1979-10-11 Ignition system with knocking signal detector Pending JPS5654964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13002279A JPS5654964A (en) 1979-10-11 1979-10-11 Ignition system with knocking signal detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13002279A JPS5654964A (en) 1979-10-11 1979-10-11 Ignition system with knocking signal detector

Publications (1)

Publication Number Publication Date
JPS5654964A true JPS5654964A (en) 1981-05-15

Family

ID=15024223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13002279A Pending JPS5654964A (en) 1979-10-11 1979-10-11 Ignition system with knocking signal detector

Country Status (1)

Country Link
JP (1) JPS5654964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118923A (en) * 1982-01-11 1983-07-15 Matsushita Electric Ind Co Ltd Knocking detector
US5487365A (en) * 1991-02-21 1996-01-30 Yamaha Hatsudoki Kabushiki Kaisha Induction system for engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58118923A (en) * 1982-01-11 1983-07-15 Matsushita Electric Ind Co Ltd Knocking detector
US5487365A (en) * 1991-02-21 1996-01-30 Yamaha Hatsudoki Kabushiki Kaisha Induction system for engine

Similar Documents

Publication Publication Date Title
US4478068A (en) Internal combustion engine knock sensing method and system
US4331117A (en) System and method for controlling engine knock
US5467638A (en) Method and device for recognizing the knocking of an internal-combustion engine
JPS55141649A (en) Knocking detector
US4637245A (en) Knock deriving apparatus for internal combustion engines
CA1330593C (en) Method and apparatus for measuring detonation in an internal combustion engine
US4424706A (en) Engine with knock sensing using product component of knock vibration signal
JPS55114878A (en) Ignition timing controller of internal combustion engine
US4444042A (en) Engine-knock detection method and apparatus
US4420968A (en) Undesirable combustion characteristic detection apparatus
GB2061380A (en) Knocking detector for controlling ignition timing of an internal combustion engine
SE8008565L (en) DEVICE FOR THE DETECTION OF NON-INJURED COMBUSTION PROCEDURES IN COMBUSTION ENGINES PROVIDED WITH IGNITION SYSTEM
JPS5979827A (en) Knocking detection system for engine
JPS5654964A (en) Ignition system with knocking signal detector
JPS6148848B2 (en)
US4454750A (en) Apparatus for generating a knock signal for use with an internal combustion engine
JPS54103911A (en) Knock detector and ignition time controller for internal combustion engine
JP3335628B2 (en) Knock detection device for internal combustion engine
JPS5845520A (en) Knocking detector
JPS5669459A (en) Ignition timing controller for internal combustion engine
JPS56115861A (en) Detecting circuit for knocking of internal combustion engine
JPS5664157A (en) Ignition device for internal combustion engine
JPS56148034A (en) Knock controller
JPH0755482Y2 (en) Knocking detection device for internal combustion engine
JPS57165719A (en) Device for detecting knocking in internal combustion engine