FR3115565B1 - Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne - Google Patents

Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne Download PDF

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Publication number
FR3115565B1
FR3115565B1 FR2010840A FR2010840A FR3115565B1 FR 3115565 B1 FR3115565 B1 FR 3115565B1 FR 2010840 A FR2010840 A FR 2010840A FR 2010840 A FR2010840 A FR 2010840A FR 3115565 B1 FR3115565 B1 FR 3115565B1
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France
Prior art keywords
air flow
internal combustion
measurement
correcting
combustion engine
Prior art date
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Application number
FR2010840A
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English (en)
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FR3115565A1 (fr
Inventor
Luc Pereira
Sylvain Savy
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Renault SAS
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Renault SAS
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Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR2010840A priority Critical patent/FR3115565B1/fr
Publication of FR3115565A1 publication Critical patent/FR3115565A1/fr
Application granted granted Critical
Publication of FR3115565B1 publication Critical patent/FR3115565B1/fr
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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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/0065—Specific aspects of external EGR control
    • F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • 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
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • 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
    • F02D2041/281—Interface circuits between sensors and control unit
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

Procédé de correction (100) d’une mesure (S) de débit d’air admis dans un moteur à combustion interne comprenant un premier circuit (34) de recirculation des gaz d’échappement à haute pression comportant une vanne EGR haute pression (V EGR HP) et un deuxième circuit (36) de recirculation des gaz d’échappement à basse pression comportant une vanne EGR basse pression (V EGR BP), dans lequel :- on mesure le débit d’air (S) admis dans le moteur à combustion interne ;- on détermine une valeur estimée du débit d’air (D_est) en fonction de la mesure (S) de débit d’air et de coefficients de linéarisation (ai, bi, ci, di et ei) issus d’un banc d’essai en fonction d’une valeur mesurée de débit d’air et d’une valeur de référence de débit d’air ;- on détermine un facteur de correction en fonction de la charge et du régime du fonctionnement du moteur ; et- on ajoute le facteur de correction (F) à la valeur estimée du débit d’air (D_est). Figure pour l’abrégé : Fig 3
FR2010840A 2020-10-22 2020-10-22 Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne Active FR3115565B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2010840A FR3115565B1 (fr) 2020-10-22 2020-10-22 Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2010840 2020-10-22
FR2010840A FR3115565B1 (fr) 2020-10-22 2020-10-22 Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne

Publications (2)

Publication Number Publication Date
FR3115565A1 FR3115565A1 (fr) 2022-04-29
FR3115565B1 true FR3115565B1 (fr) 2023-05-26

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FR2010840A Active FR3115565B1 (fr) 2020-10-22 2020-10-22 Procédé et système de correction d’une mesure de débit d’air admis dans un moteur à combustion interne

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FR (1) FR3115565B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986243A (en) * 1990-01-19 1991-01-22 Siemens Automotive L.P. Mass air flow engine control system with mass air event integrator
JP3141762B2 (ja) * 1995-12-13 2001-03-05 株式会社日立製作所 空気流量計測装置及び空気流量計測方法
FR2942849B1 (fr) * 2009-03-03 2011-04-01 Renault Sas Procede de traitement d'un signal issu d'un debitmetre de mesure d'un debit de gaz dans un moteur a combustion interne
FR2944059B1 (fr) 2009-04-02 2017-06-23 Renault Sas Procede et systeme de correction d'une mesure de debit d'air admis dans un moteur a combustion interne
FR2953561A3 (fr) * 2009-12-04 2011-06-10 Renault Sa Procede et systeme de correction d'une mesure de debit d'air admis dans un moteur a combustion interne
DE102019106228A1 (de) * 2019-03-12 2020-09-17 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben eines Verbrennungsmotors mit einer Niederdruckabgasrückführung

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FR3115565A1 (fr) 2022-04-29

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