WO2008043952A3 - Systeme de determination du debit massique d'oxydes d'azote emis dans les gaz d'echappement d'un moteur a combustion interne - Google Patents

Systeme de determination du debit massique d'oxydes d'azote emis dans les gaz d'echappement d'un moteur a combustion interne Download PDF

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Publication number
WO2008043952A3
WO2008043952A3 PCT/FR2007/052107 FR2007052107W WO2008043952A3 WO 2008043952 A3 WO2008043952 A3 WO 2008043952A3 FR 2007052107 W FR2007052107 W FR 2007052107W WO 2008043952 A3 WO2008043952 A3 WO 2008043952A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow rate
nitrogen oxides
mass flow
internal combustion
determining
Prior art date
Application number
PCT/FR2007/052107
Other languages
English (en)
Other versions
WO2008043952A2 (fr
Inventor
Regis Gauthier
Linda Hadjiat
Mohammed Ouazzani-Chahdi
Original Assignee
Renault Sa
Regis Gauthier
Linda Hadjiat
Mohammed Ouazzani-Chahdi
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 Renault Sa, Regis Gauthier, Linda Hadjiat, Mohammed Ouazzani-Chahdi filed Critical Renault Sa
Publication of WO2008043952A2 publication Critical patent/WO2008043952A2/fr
Publication of WO2008043952A3 publication Critical patent/WO2008043952A3/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
    • F02D41/1438—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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1461—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 NOx content or concentration of the exhaust gases emitted by the engine
    • F02D41/1462—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 NOx content or concentration of the exhaust gases emitted by the engine with determination means using an estimation
    • 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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1463—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 NOx content or concentration of the exhaust gases downstream of 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
    • 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]
    • 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
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • 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
    • F02D41/146—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 NOx content or concentration
    • 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
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2422—Selective use of one or more tables

Landscapes

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

Abstract

L' invention concerne un système de détermination du débit massique d' oxydes d'azote émis dans les gaz d' échappement d'un moteur à combustion interne comprenant une unité de contrôle électronique (7) comprenant des premiers moyens de calcul (17) capables de calculer le débit massique d' oxydes d' azote à partir de valeurs de débits de carburant injecté, de signaux d'un capteur de la vitesse de rotation du moteur et d'un ensemble mémorisé de valeurs de débits massiques d' oxydes d' azote en fonction du débit de carburant injecté et de la vitesse de rotation N du moteur. L'unité de contrôle électronique (7) comprend également des deuxièmes moyens de calcul (18) capables de calculer le débit de carburant injecté à partir des valeurs de richesse mesurées par une sonde à oxygène (10), et de fournir aux premiers moyens de calcul (17) les valeurs calculées de débit de carburant injecté.
PCT/FR2007/052107 2006-10-09 2007-10-09 Systeme de determination du debit massique d'oxydes d'azote emis dans les gaz d'echappement d'un moteur a combustion interne WO2008043952A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0654164A FR2906842B1 (fr) 2006-10-09 2006-10-09 Systeme de determination du debit massique d'oxydes d'azote emis dans les gaz d'echappement d'un moteur a combustion interne
FR0654164 2006-10-09

Publications (2)

Publication Number Publication Date
WO2008043952A2 WO2008043952A2 (fr) 2008-04-17
WO2008043952A3 true WO2008043952A3 (fr) 2008-06-19

Family

ID=38036365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/052107 WO2008043952A2 (fr) 2006-10-09 2007-10-09 Systeme de determination du debit massique d'oxydes d'azote emis dans les gaz d'echappement d'un moteur a combustion interne

Country Status (2)

Country Link
FR (1) FR2906842B1 (fr)
WO (1) WO2008043952A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933736B1 (fr) * 2008-07-10 2012-07-20 Peugeot Citroen Automobiles Sa Procede de controle instantane des emissions d'oxydes d'azote
FR3006372B1 (fr) * 2013-05-31 2017-02-24 Renault Sa Procede d'estimation des emissions polluantes d'un moteur a combustion interne et procede associe de pilotage du moteur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020069864A1 (en) * 2000-12-07 2002-06-13 Koji Takahashi Device and method for controlling air-fuel ratio of internal combustion engine
US6619107B1 (en) * 1999-09-17 2003-09-16 Horiba Ltd Simple method of measuring nitrogen oxide in running vehicles
EP1408331A2 (fr) * 2002-10-11 2004-04-14 General Motors Corporation Procédé pour l'estimation d'oxydes d'azote en temps réel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6619107B1 (en) * 1999-09-17 2003-09-16 Horiba Ltd Simple method of measuring nitrogen oxide in running vehicles
US20020069864A1 (en) * 2000-12-07 2002-06-13 Koji Takahashi Device and method for controlling air-fuel ratio of internal combustion engine
EP1408331A2 (fr) * 2002-10-11 2004-04-14 General Motors Corporation Procédé pour l'estimation d'oxydes d'azote en temps réel

Also Published As

Publication number Publication date
WO2008043952A2 (fr) 2008-04-17
FR2906842A1 (fr) 2008-04-11
FR2906842B1 (fr) 2008-12-05

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