EP1577525A3 - Control method for thermal engine exhaust gases processing and vehicle using this method - Google Patents

Control method for thermal engine exhaust gases processing and vehicle using this method Download PDF

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Publication number
EP1577525A3
EP1577525A3 EP05300128A EP05300128A EP1577525A3 EP 1577525 A3 EP1577525 A3 EP 1577525A3 EP 05300128 A EP05300128 A EP 05300128A EP 05300128 A EP05300128 A EP 05300128A EP 1577525 A3 EP1577525 A3 EP 1577525A3
Authority
EP
European Patent Office
Prior art keywords
trap
nox
exhaust gases
nitrogen oxides
vehicle
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.)
Withdrawn
Application number
EP05300128A
Other languages
German (de)
French (fr)
Other versions
EP1577525A2 (en
Inventor
Arnaud Audoin
Alain Sassi
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1577525A2 publication Critical patent/EP1577525A2/en
Publication of EP1577525A3 publication Critical patent/EP1577525A3/en
Withdrawn legal-status Critical Current

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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
    • F02D41/021—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
    • F02D41/028—Desulfurisation of NOx traps 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
    • F02D41/021—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
    • 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
    • F02D2200/0806—NOx storage amount, i.e. amount of NOx stored on NOx trap
    • 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
    • F02D41/24—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
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un procédé de contrôle du traitement des gaz (406) d'échappement d'un moteur thermique (402), les oxydes d'azote (NOx) compris dans ces gaz (406) étant stockés puis réduits dans un piège (404) modélisé de telle sorte que la réduction de ces oxydes d'azote (NOx) est commandée lorsque la capacité de stockage du piège (404), déterminée selon le modèle, atteint un seuil (Mse).The invention relates to a method for controlling the treatment of exhaust gases (406) of a heat engine (402), the nitrogen oxides (NOx) included in these gases (406) being stored and reduced in a trap ( 404) modeled in such a way that the reduction of these nitrogen oxides (NOx) is controlled when the storage capacity of the trap (404), determined according to the model, reaches a threshold (M se ).

Conformément à l'invention, un tel procédé est caractérisé en ce qu'on contrôle la modélisation du piège (404) en mesurant la quantité d'oxydes d'azote (NOx) stockée dans ce piège (404), au moyen d'une sonde (408) située en aval du piège (404), et en comparant cette mesure à la quantité d'oxydes d'azote (NOx) stockée, déterminée selon le modèle, afin de corriger ce dernier si la quantité mesurée est sensiblement distincte de la quantité modélisée.

Figure 00000001
According to the invention, such a method is characterized by controlling the modeling of the trap (404) by measuring the amount of nitrogen oxides (NOx) stored in this trap (404), by means of a probe (408) downstream of the trap (404), and comparing this measurement with the quantity of nitrogen oxides (NOx) stored, determined according to the model, in order to correct the latter if the quantity measured is substantially distinct from the quantity modeled.
Figure 00000001
EP05300128A 2004-02-27 2005-02-17 Control method for thermal engine exhaust gases processing and vehicle using this method Withdrawn EP1577525A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450385 2004-02-27
FR0450385A FR2866925B1 (en) 2004-02-27 2004-02-27 METHOD FOR MONITORING THE TREATMENT OF EXHAUST GASES OF A HEAT ENGINE AND THERMALLY ENGINE VEHICLE USING SAID METHOD

Publications (2)

Publication Number Publication Date
EP1577525A2 EP1577525A2 (en) 2005-09-21
EP1577525A3 true EP1577525A3 (en) 2005-10-19

Family

ID=34834262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05300128A Withdrawn EP1577525A3 (en) 2004-02-27 2005-02-17 Control method for thermal engine exhaust gases processing and vehicle using this method

Country Status (3)

Country Link
US (1) US20050191754A1 (en)
EP (1) EP1577525A3 (en)
FR (1) FR2866925B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866926B1 (en) * 2004-02-27 2008-02-22 Peugeot Citroen Automobiles Sa DIAGNOSTIC METHOD FOR AN EXHAUST GAS CATALYST OF A THERMAL MOTOR AND VEHICLE USING THE SAME
EP2324349B1 (en) * 2008-09-03 2016-11-30 Testo AG Method and apparatus for capturing measurement values and displaying measurement values

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6418711B1 (en) * 2000-08-29 2002-07-16 Ford Global Technologies, Inc. Method and apparatus for estimating lean NOx trap capacity

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408215A (en) * 1991-09-04 1995-04-18 Ford Motor Company Catalyst monitoring using a hydrocarbon sensor
JP3852788B2 (en) * 1995-10-02 2006-12-06 株式会社小松製作所 Diesel engine NOx catalyst deterioration detection device and its deterioration detection method
US5743084A (en) * 1996-10-16 1998-04-28 Ford Global Technologies, Inc. Method for monitoring the performance of a nox trap
JP3331161B2 (en) * 1996-11-19 2002-10-07 本田技研工業株式会社 Deterioration determination method for exhaust gas purification catalyst device
IT1305375B1 (en) * 1998-08-25 2001-05-04 Magneti Marelli Spa METHOD OF CHECKING THE TITLE OF THE AIR / FUEL MIXTURE SUPPLIED TO AN ENDOTHERMAL ENGINE
JP4158268B2 (en) * 1999-03-17 2008-10-01 日産自動車株式会社 Engine exhaust purification system
JP2000265825A (en) * 1999-03-18 2000-09-26 Nissan Motor Co Ltd Exhaust emission control device for engine
JP2000282848A (en) * 1999-03-30 2000-10-10 Nissan Motor Co Ltd Exhaust emission control device for internal combustion engine
JP3805562B2 (en) * 1999-06-03 2006-08-02 三菱電機株式会社 Exhaust gas purification device for internal combustion engine
JP3570297B2 (en) * 1999-06-10 2004-09-29 株式会社日立製作所 Engine exhaust purification device
JP2001003735A (en) * 1999-06-18 2001-01-09 Hitachi Ltd Engine exhaust emission control device
IT1310465B1 (en) * 1999-09-07 2002-02-18 Magneti Marelli Spa SELF-ADAPTIVE METHOD OF CONTROL OF AN EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINES WITH COMMAND IGNITION.
JP3860981B2 (en) * 2001-08-28 2006-12-20 本田技研工業株式会社 Exhaust gas purification device for internal combustion engine
FR2866926B1 (en) * 2004-02-27 2008-02-22 Peugeot Citroen Automobiles Sa DIAGNOSTIC METHOD FOR AN EXHAUST GAS CATALYST OF A THERMAL MOTOR AND VEHICLE USING THE SAME

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6418711B1 (en) * 2000-08-29 2002-07-16 Ford Global Technologies, Inc. Method and apparatus for estimating lean NOx trap capacity

Also Published As

Publication number Publication date
FR2866925A1 (en) 2005-09-02
FR2866925B1 (en) 2006-10-13
US20050191754A1 (en) 2005-09-01
EP1577525A2 (en) 2005-09-21

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