FR3090047B1 - Method for detecting knocking combustion in an engine - Google Patents

Method for detecting knocking combustion in an engine Download PDF

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Publication number
FR3090047B1
FR3090047B1 FR1872989A FR1872989A FR3090047B1 FR 3090047 B1 FR3090047 B1 FR 3090047B1 FR 1872989 A FR1872989 A FR 1872989A FR 1872989 A FR1872989 A FR 1872989A FR 3090047 B1 FR3090047 B1 FR 3090047B1
Authority
FR
France
Prior art keywords
signal
engine
observation window
knocking combustion
band
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.)
Active
Application number
FR1872989A
Other languages
French (fr)
Other versions
FR3090047A1 (en
Inventor
Olivier Forti
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.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive GmbH
Continental Automotive France SAS
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 Continental Automotive GmbH, Continental Automotive France SAS filed Critical Continental Automotive GmbH
Priority to FR1872989A priority Critical patent/FR3090047B1/en
Publication of FR3090047A1 publication Critical patent/FR3090047A1/en
Application granted granted Critical
Publication of FR3090047B1 publication Critical patent/FR3090047B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2422—Selective use of one or more tables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/06—Testing internal-combustion engines by monitoring positions of pistons or cranks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • F02D2041/286—Interface circuits comprising means for signal processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L’invention concerne un procédé de détection (200) en temps réel d’une combustion cliquetis dans un moteur à combustion interne. Le moteur à combustion interne comprend au moins un cylindre dans lequel coulisse un piston, et au moins un capteur configuré pour capturer un signal vibratoire représentatif des vibrations du moteur. Le procédé de détection (200) comprend une étape d'échantillonnage (210) réalisée en appliquant une fenêtre d’observation au signal capturé, de sorte à générer un premier signal, ladite fenêtre d’observation présentant une durée couvrant au moins en partie la course du piston dans le cylindre pendant une phase de combustion ; une étape de filtrage (220) réalisée par application d’un filtre passe-bande au premier signal, de sorte à générer un deuxième signal, ledit filtre passe-bande présentant une fréquence centrale qui varie sur la durée de la fenêtre d’observation ; et une étape d’analyse (230) du deuxième signal de sorte à identifier l'occurrence d’une combustion cliquetis. Figure de l’abrégé : Figure 1The invention relates to a method for detecting (200) in real time a knocking combustion in an internal combustion engine. The internal combustion engine comprises at least one cylinder in which a piston slides, and at least one sensor configured to capture a vibratory signal representative of the vibrations of the engine. The detection method (200) comprises a sampling step (210) carried out by applying an observation window to the captured signal, so as to generate a first signal, said observation window having a duration covering at least part of the time. stroke of the piston in the cylinder during a combustion phase; a filtering step (220) performed by applying a band-pass filter to the first signal, so as to generate a second signal, said band-pass filter having a center frequency which varies over the duration of the observation window; and a step of analyzing (230) the second signal so as to identify the occurrence of a knocking combustion. Abstract figure: Figure 1

FR1872989A 2018-12-14 2018-12-14 Method for detecting knocking combustion in an engine Active FR3090047B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1872989A FR3090047B1 (en) 2018-12-14 2018-12-14 Method for detecting knocking combustion in an engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1872989A FR3090047B1 (en) 2018-12-14 2018-12-14 Method for detecting knocking combustion in an engine

Publications (2)

Publication Number Publication Date
FR3090047A1 FR3090047A1 (en) 2020-06-19
FR3090047B1 true FR3090047B1 (en) 2021-03-05

Family

ID=66542382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1872989A Active FR3090047B1 (en) 2018-12-14 2018-12-14 Method for detecting knocking combustion in an engine

Country Status (1)

Country Link
FR (1) FR3090047B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965728A (en) * 1982-10-07 1984-04-14 Matsushita Electric Ind Co Ltd Knocking detector
US5278760A (en) * 1990-04-20 1994-01-11 Hitachi America, Ltd. Method and system for detecting the misfire of an internal combustion engine utilizing engine torque nonuniformity
US5522254A (en) * 1992-12-04 1996-06-04 Nippondenso Co., Ltd. Knock sensing apparatus for internal combustion engine
DE19946346A1 (en) * 1999-09-28 2001-03-29 Bosch Gmbh Robert Knock detection method
JP2006161649A (en) * 2004-12-06 2006-06-22 Denso Corp Knock detecting device
FR2949511B1 (en) 2009-08-26 2012-03-09 Inst Francais Du Petrole METHOD OF ESTIMATING THE INTENSITY OF CLICKS OF AN INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
FR3090047A1 (en) 2020-06-19

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