GB2009406A - Detecting knocking in an engine - Google Patents

Detecting knocking in an engine

Info

Publication number
GB2009406A
GB2009406A GB7845661A GB7845661A GB2009406A GB 2009406 A GB2009406 A GB 2009406A GB 7845661 A GB7845661 A GB 7845661A GB 7845661 A GB7845661 A GB 7845661A GB 2009406 A GB2009406 A GB 2009406A
Authority
GB
United Kingdom
Prior art keywords
signal
engine
produced
knocking
normal operation
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.)
Granted
Application number
GB7845661A
Other versions
GB2009406B (en
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of GB2009406A publication Critical patent/GB2009406A/en
Application granted granted Critical
Publication of GB2009406B publication Critical patent/GB2009406B/en
Expired 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)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)

Abstract

Vibration produced in an internal combustion engine during normal operation is detected at 1, and a corresponding electrical signal is produced and stored at 9, 10 and 11. Meanwhile, the engine is continuously monitored, and the onset of, and vibration of the engine during, knocking are detected and a corresponding electrical signal is produced. Then the signal corresponding to normal operation of the engine is instantaneously substracted at 12 from the signal corresponding to knocking in the engine to produce a resultant signal in which contributions due to background engine noise during knocking are suppressed. The signal stored is produced from the output signal of the detector 1 by utilizing a voltage controlled oscillator 9 which produces an output signal having a frequency at the detector output frequency and a storage device 10 which detects the peak of the detector output signal during normal operation, the outputs of the oscillator 9 and the device 10 being combined at 11 to provide a signal which is applied to the subtractor 12. <IMAGE>
GB7845661A 1977-12-06 1978-11-22 Detection of knocking in an engine Expired GB2009406B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30412/77A IT1088734B (en) 1977-12-06 1977-12-06 AUTOMATIC BACKGROUND NOISE SUPPRESSION SYSTEM ON HEAD BEAT MEASUREMENT EQUIPMENT

Publications (2)

Publication Number Publication Date
GB2009406A true GB2009406A (en) 1979-06-13
GB2009406B GB2009406B (en) 1982-04-07

Family

ID=11229715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845661A Expired GB2009406B (en) 1977-12-06 1978-11-22 Detection of knocking in an engine

Country Status (4)

Country Link
DE (1) DE2852760C2 (en)
FR (1) FR2411399A1 (en)
GB (1) GB2009406B (en)
IT (1) IT1088734B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022565A1 (en) * 1979-07-11 1981-01-21 Creative Tool Company Corp. Compression rate analyzer
EP0047394A1 (en) * 1980-08-14 1982-03-17 Hitachi, Ltd. Engine knock control apparatus
FR2494770A2 (en) * 1979-06-07 1982-05-28 Daimler Benz Ag Anti-knock ignition control circuit for IC engine - uses filter circuits and timing monostable to reject disturbances not caused by knocking
EP0148308A2 (en) * 1980-08-14 1985-07-17 Hitachi, Ltd. Engine knock control apparatus
GB2201780A (en) * 1987-03-04 1988-09-07 Lucas Ind Plc A noise-cancelling circuit for an ic engine knock-detector
DE19520033A1 (en) * 1995-05-31 1996-12-05 Bayerische Motoren Werke Ag Device for generating a synthetic signal for testing knock control functions
ES2099667A1 (en) * 1993-06-26 1997-05-16 Mann & Hummel Filter Method for determining a noise signal from total noise
WO2002036304A2 (en) * 2000-10-24 2002-05-10 Consiglio Nazionale Delle Ricerche Method and relevant device for the automatic supervision of the degree of wear of the tools employed in the unmanned mechanical working
GB2564694A (en) * 2017-07-20 2019-01-23 Delphi Automotive Systems Lux Combustion noise detection in an internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923056C2 (en) * 1979-06-07 1982-05-13 Daimler-Benz Ag, 7000 Stuttgart Device for recognizing undesired combustion processes in externally ignited internal combustion engines
DE2942250A1 (en) * 1979-10-19 1981-05-07 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR DETECTING THE VIBRATIONS WHEN TAPPING AN INTERNAL COMBUSTION ENGINE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619830A (en) * 1948-09-13 1952-12-02 Phillips Petroleum Co Detonation meter
US3387222A (en) * 1965-07-01 1968-06-04 Ibm Adaptive threshold signal detector with noise suppression
FR2063377A5 (en) * 1969-10-13 1971-07-09 Mobil Oil France
DE2146361C3 (en) * 1970-09-22 1974-01-03 Snam Progetti S.P.A., Mailand (Italien) Device for measuring knocking in internal combustion engines
US3822583A (en) * 1972-11-30 1974-07-09 Standard Oil Co Method for determining octane ratings of fuels under road conditions
IT993371B (en) * 1973-09-24 1975-09-30 Snam Progetti AUTOMATIC BACKGROUND NOISE SUPPRESSION SYSTEM ON HEAD BEAT MEASUREMENT

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494770A2 (en) * 1979-06-07 1982-05-28 Daimler Benz Ag Anti-knock ignition control circuit for IC engine - uses filter circuits and timing monostable to reject disturbances not caused by knocking
EP0022565A1 (en) * 1979-07-11 1981-01-21 Creative Tool Company Corp. Compression rate analyzer
EP0047394A1 (en) * 1980-08-14 1982-03-17 Hitachi, Ltd. Engine knock control apparatus
EP0146668A2 (en) * 1980-08-14 1985-07-03 Hitachi, Ltd. Engine knock control apparatus
EP0148308A2 (en) * 1980-08-14 1985-07-17 Hitachi, Ltd. Engine knock control apparatus
EP0146668A3 (en) * 1980-08-14 1987-01-21 Hitachi, Ltd. Engine knock control apparatus
EP0148308A3 (en) * 1980-08-14 1987-01-21 Hitachi, Ltd. Engine knock control apparatus
GB2201780B (en) * 1987-03-04 1991-10-09 Lucas Ind Plc Knock detection system
GB2201780A (en) * 1987-03-04 1988-09-07 Lucas Ind Plc A noise-cancelling circuit for an ic engine knock-detector
ES2099667A1 (en) * 1993-06-26 1997-05-16 Mann & Hummel Filter Method for determining a noise signal from total noise
DE19520033A1 (en) * 1995-05-31 1996-12-05 Bayerische Motoren Werke Ag Device for generating a synthetic signal for testing knock control functions
US5665906A (en) * 1995-05-31 1997-09-09 Bayerische Motoren Werke Ag Device for generating a synthetic signal for testing knock control functions
WO2002036304A2 (en) * 2000-10-24 2002-05-10 Consiglio Nazionale Delle Ricerche Method and relevant device for the automatic supervision of the degree of wear of the tools employed in the unmanned mechanical working
WO2002036304A3 (en) * 2000-10-24 2003-03-27 Consiglio Nazionale Ricerche Method and relevant device for the automatic supervision of the degree of wear of the tools employed in the unmanned mechanical working
GB2564694A (en) * 2017-07-20 2019-01-23 Delphi Automotive Systems Lux Combustion noise detection in an internal combustion engine
GB2564694B (en) * 2017-07-20 2020-03-11 Delphi Automotive Systems Lux Combustion noise detection in an internal combustion engine

Also Published As

Publication number Publication date
IT1088734B (en) 1985-06-10
GB2009406B (en) 1982-04-07
DE2852760A1 (en) 1979-06-28
FR2411399A1 (en) 1979-07-06
DE2852760C2 (en) 1986-08-28
FR2411399B1 (en) 1982-04-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee