FR2411399A1 - AUTOMATIC SYSTEM TO REMOVE BACKGROUND NOISE IN AN APPLIANCE FOR MEASURING COGNING IN INTERNAL COMBUSTION ENGINES - Google Patents

AUTOMATIC SYSTEM TO REMOVE BACKGROUND NOISE IN AN APPLIANCE FOR MEASURING COGNING IN INTERNAL COMBUSTION ENGINES

Info

Publication number
FR2411399A1
FR2411399A1 FR7834271A FR7834271A FR2411399A1 FR 2411399 A1 FR2411399 A1 FR 2411399A1 FR 7834271 A FR7834271 A FR 7834271A FR 7834271 A FR7834271 A FR 7834271A FR 2411399 A1 FR2411399 A1 FR 2411399A1
Authority
FR
France
Prior art keywords
cogning
internal combustion
combustion engines
background noise
appliance
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
FR7834271A
Other languages
French (fr)
Other versions
FR2411399B1 (en
Inventor
Virgilio Arrigoni
Bruno Gaetani
Fulvio Giavazzi
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 FR2411399A1 publication Critical patent/FR2411399A1/en
Application granted granted Critical
Publication of FR2411399B1 publication Critical patent/FR2411399B1/fr
Granted 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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)

Abstract

LE SYSTEME DE SUPPRESSION DE BRUIT DE FOND SELON L'INVENTION CONCERNE LA DETECTION ELECTRONIQUE DU COGNEMENT DE PREALLUMAGE DANS LES MOTEURS A COMBUSTION INTERNE. DANS CE SYSTEME, ON DETECTE LE SIGNAL A (SIGNAL QUE L'ON PEUT OBSERVER APRES L'APPARITION DU PHENOMENE DE COGNEMENT) ET ON LUI SUPERPOSE, AVEC UNE POLARISATION OPPOSEE, LE SIGNAL B (SIGNAL RESULTANT DES VIBRATIONS) DE MANIERE A OBTENIR LA DIFFERENCE A-BC ET, DE CE FAIT, LE SIGNAL RELATIF UNIQUEMENT AU COGNEMENT.THE BACKGROUND NOISE SUPPRESSION SYSTEM ACCORDING TO THE INVENTION RELATES TO THE ELECTRONIC DETECTION OF THE PRE-IGNITION COGNING IN INTERNAL COMBUSTION ENGINES. IN THIS SYSTEM, THE A SIGNAL (SIGNAL THAT CAN BE OBSERVED AFTER THE APPEARANCE OF THE COGNING PHENOMENON) IS DETECTED AND THE B SIGNAL (SIGNAL RESULTING FROM VIBRATIONS) IS OVERLAPPED WITH OPPOSITE POLARIZATION, SO AS TO OBTAIN THE DIFFERENCE A-BC AND, THEREFORE, THE SIGNAL RELATING TO THE KNOCKING ONLY.

FR7834271A 1977-12-06 1978-12-05 AUTOMATIC SYSTEM TO REMOVE BACKGROUND NOISE IN AN APPLIANCE FOR MEASURING COGNING IN INTERNAL COMBUSTION ENGINES Granted FR2411399A1 (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
FR2411399A1 true FR2411399A1 (en) 1979-07-06
FR2411399B1 FR2411399B1 (en) 1982-04-09

Family

ID=11229715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834271A Granted FR2411399A1 (en) 1977-12-06 1978-12-05 AUTOMATIC SYSTEM TO REMOVE BACKGROUND NOISE IN AN APPLIANCE FOR MEASURING COGNING IN INTERNAL COMBUSTION ENGINES

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458682A1 (en) * 1979-06-07 1981-01-02 Daimler Benz Ag DEVICE FOR RECOGNIZING UNDESIRABLE COMBUSTION ROUTES IN INTERNAL COMBUSTION ENGINES WITH EXTERNAL IGNITION
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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292841A (en) * 1979-07-11 1981-10-06 Creative Tool Company Compression rate analyzer
DE2942250A1 (en) * 1979-10-19 1981-05-07 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR DETECTING THE VIBRATIONS WHEN TAPPING AN INTERNAL COMBUSTION ENGINE
JPS5738667A (en) * 1980-08-14 1982-03-03 Hitachi Ltd Knock controller
DE3177108D1 (en) * 1980-08-14 1989-11-02 Hitachi Ltd Engine knock control apparatus
GB8705023D0 (en) * 1987-03-04 1987-04-08 Lucas Elect Electron Syst Knock detection system
DE4321352C2 (en) * 1993-06-26 2001-09-13 Mann & Hummel Filter Method for determining a noise signal from a total noise for noise attenuation
DE19520033A1 (en) * 1995-05-31 1996-12-05 Bayerische Motoren Werke Ag Device for generating a synthetic signal for testing knock control functions
IT1315994B1 (en) * 2000-10-24 2003-03-26 Consiglio Nazionale Ricerche PROCEDURE AND RELATED DEVICE FOR AUTOMATIC SUPERVISION OF THE WEAR DEGREE OF THE TOOLS USED IN MECHANICAL PROCESSING
GB2564694B (en) * 2017-07-20 2020-03-11 Delphi Automotive Systems Lux Combustion noise detection in an internal combustion engine

Citations (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
GB1104832A (en) * 1965-07-01 1968-02-28 Ibm Discriminating circuits
FR2063377A5 (en) * 1969-10-13 1971-07-09 Mobil Oil France
FR2108376A5 (en) * 1970-09-22 1972-05-19 Snam Progetti
US3822583A (en) * 1972-11-30 1974-07-09 Standard Oil Co Method for determining octane ratings of fuels under road conditions
FR2244981A1 (en) * 1973-09-24 1975-04-18 Snam Progetti

Patent Citations (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
GB1104832A (en) * 1965-07-01 1968-02-28 Ibm Discriminating circuits
FR2063377A5 (en) * 1969-10-13 1971-07-09 Mobil Oil France
FR2108376A5 (en) * 1970-09-22 1972-05-19 Snam Progetti
US3822583A (en) * 1972-11-30 1974-07-09 Standard Oil Co Method for determining octane ratings of fuels under road conditions
FR2244981A1 (en) * 1973-09-24 1975-04-18 Snam Progetti

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458682A1 (en) * 1979-06-07 1981-01-02 Daimler Benz Ag DEVICE FOR RECOGNIZING UNDESIRABLE COMBUSTION ROUTES IN INTERNAL COMBUSTION ENGINES WITH EXTERNAL IGNITION
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

Also Published As

Publication number Publication date
IT1088734B (en) 1985-06-10
GB2009406A (en) 1979-06-13
GB2009406B (en) 1982-04-07
FR2411399B1 (en) 1982-04-09
DE2852760A1 (en) 1979-06-28
DE2852760C2 (en) 1986-08-28

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Legal Events

Date Code Title Description
ST Notification of lapse