FR3101110B1 - Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande - Google Patents

Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande Download PDF

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Publication number
FR3101110B1
FR3101110B1 FR1910314A FR1910314A FR3101110B1 FR 3101110 B1 FR3101110 B1 FR 3101110B1 FR 1910314 A FR1910314 A FR 1910314A FR 1910314 A FR1910314 A FR 1910314A FR 3101110 B1 FR3101110 B1 FR 3101110B1
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France
Prior art keywords
oxygen
catalyst
value
richness
osc
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Active
Application number
FR1910314A
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English (en)
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FR3101110A1 (fr
Inventor
Guillaume Chabard
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.)
Renault SAS
Original Assignee
Renault SAS
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Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR1910314A priority Critical patent/FR3101110B1/fr
Priority to EP20765302.3A priority patent/EP4031759A1/fr
Priority to PCT/EP2020/075016 priority patent/WO2021052808A1/fr
Publication of FR3101110A1 publication Critical patent/FR3101110A1/fr
Application granted granted Critical
Publication of FR3101110B1 publication Critical patent/FR3101110B1/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
    • F02D41/02—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
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/0295—Control according to the amount of oxygen that is stored on the exhaust gas treating apparatus
    • 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
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/1441—Plural sensors
    • 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
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • 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
    • F02D41/1493—Details
    • 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
    • F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
    • 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
    • F02D2041/1418—Several control loops, either as alternatives or simultaneous
    • F02D2041/1419—Several control loops, either as alternatives or simultaneous the control loops being cascaded, i.e. being placed in series or nested
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0614—Actual fuel mass or fuel injection amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0802—Temperature of the exhaust gas treatment apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0814—Oxygen storage amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0816—Oxygen storage capacity

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L’invention propose un procédé de réglage de la richesse dans un moteur à combustion interne équipé d’un catalyseur. La richesse est réglée par un premier régulateur en boucle fermée sur une consigne (Cλ) qui est corrigée en permanence par un deuxième régulateur en fonction des écarts entre une valeur de quantité d’oxygène (OS) calculée et une valeur de consigne de stock d’oxygène (OSc). Selon l’invention, ladite consigne (OSc) est définie, pour chaque valeur de débit des gaz (Qech) traversant le catalyseur et de température (Tcat) du catalyseur, à l’intérieur d’une plage comprise entre un seuil minimal et un seuil maximal de quantité d’oxygène (OSmin,OSmax), dont le dépassement correspond respectivement à un début de fuite de monoxyde de carbone ou d’oxydes d’azote. Ces dépassements sont mis en évidence par le fait que la tension (U’λ) d’une sonde à oxygène binaire aval du catalyseur bascule au-delà d’un seuil respectivement maximal et minimal de tension (U’max,U’min), fonction du débit et de la température de ladite sonde aval (T’λ). La régulation est assez rapide pour que la quantité d’oxygène stockée (OS) converge rapidement vers sa consigne (OSc). En cas d’atteinte d’un des seuils de tension due à des erreurs de calcul de quantité d’oxygène stockée (OS), la valeur calculée de la quantité d’oxygène stockée (OS) est réinitialisée sur la valeur de seuil de quantité d’oxygène correspondante.
FR1910314A 2019-09-19 2019-09-19 Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande Active FR3101110B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1910314A FR3101110B1 (fr) 2019-09-19 2019-09-19 Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande
EP20765302.3A EP4031759A1 (fr) 2019-09-19 2020-09-08 Procede de reglage de la richesse d'un moteur a combustion interne a allumage commande
PCT/EP2020/075016 WO2021052808A1 (fr) 2019-09-19 2020-09-08 Procede de reglage de la richesse d'un moteur a combustion interne a allumage commande

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1910314 2019-09-19
FR1910314A FR3101110B1 (fr) 2019-09-19 2019-09-19 Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande

Publications (2)

Publication Number Publication Date
FR3101110A1 FR3101110A1 (fr) 2021-03-26
FR3101110B1 true FR3101110B1 (fr) 2022-03-04

Family

ID=68654783

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1910314A Active FR3101110B1 (fr) 2019-09-19 2019-09-19 Procede de reglage de la richesse d’un moteur a combustion interne a allumage commande

Country Status (3)

Country Link
EP (1) EP4031759A1 (fr)
FR (1) FR3101110B1 (fr)
WO (1) WO2021052808A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128718C2 (de) 1991-08-29 2001-02-01 Bosch Gmbh Robert Verfahren und Vorrichtung zur Kraftstoffmengenregelung für einen Verbrennungsmotor mit Katalysator
US6497093B1 (en) * 2001-06-20 2002-12-24 Ford Global Technologies, Inc. System and method for adjusting air-fuel ratio
DE102004038481B3 (de) * 2004-08-07 2005-07-07 Audi Ag Verfahren zur Regelung des einer Brennkraftmaschine zugeführten Luft/Kraftstoffverhältnisses
DE102006025050B4 (de) * 2006-05-27 2014-04-03 Fev Gmbh Verfahren und Vorrichtung zum Betrieb einer Abgasnachbehandlungsanlage
FR2946394B1 (fr) * 2009-06-03 2015-12-11 Peugeot Citroen Automobiles Sa Procede et systeme de stimulation d'un cataliseur
JP5930031B2 (ja) * 2012-06-25 2016-06-08 日産自動車株式会社 エンジンの排気浄化装置及び排気浄化方法
FR3033364B1 (fr) 2015-03-03 2018-11-30 Renault S.A.S. Dispositif et procede de regulation de la richesse d'un moteur a combustion interne
KR101822562B1 (ko) * 2015-03-31 2018-01-29 도요타지도샤가부시키가이샤 내연 기관의 배기 정화 장치

Also Published As

Publication number Publication date
WO2021052808A1 (fr) 2021-03-25
EP4031759A1 (fr) 2022-07-27
FR3101110A1 (fr) 2021-03-26

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