EP1561933A1 - Système d'aide à la régénération de moyens de dépollution intégrés dans une ligne d'échappement d'un moteur thermique - Google Patents
Système d'aide à la régénération de moyens de dépollution intégrés dans une ligne d'échappement d'un moteur thermique Download PDFInfo
- Publication number
- EP1561933A1 EP1561933A1 EP05290199A EP05290199A EP1561933A1 EP 1561933 A1 EP1561933 A1 EP 1561933A1 EP 05290199 A EP05290199 A EP 05290199A EP 05290199 A EP05290199 A EP 05290199A EP 1561933 A1 EP1561933 A1 EP 1561933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- temperature
- mode
- rich
- motor
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title 1
- 230000008929 regeneration Effects 0.000 claims abstract description 13
- 238000011069 regeneration method Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
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
Definitions
- the present invention relates to a system for aiding regeneration of pollution control means integrated in an exhaust line of an engine of a motor vehicle.
- such means of depollution can for example comprise a NOx trap that is a system for reducing polluting emissions thermal engines of motor vehicles.
- the engine is then associated with means for controlling its operation to switch it between standard mode operation poor and regenerative operation in rich mode, according to parameters different control of the operation of this engine.
- the trap NOx stores these and when this trap is saturated, it triggers its regeneration by switching the engine to the rich operating mode of destocking NOx in which the motor produces gearboxes such as for example CO and HC.
- At least one parameter for controlling the operation of the engine that is to say at least one parameter relating to the injection of fuel into the engine (quantity, phasing, pressure, etc ...) and / or at least one parameter of the motor supply air loop (air flow, recycling, turbocharger pressure, etc .).
- the object of the invention is to improve such a system to take account for variations in environmental conditions.
- the subject of the invention is a regeneration aid system of pollution control means integrated in an exhaust line of an engine of a motor vehicle, by tilting the motor between an operation in lean mode and rich mode operation, depending on parameters different control of the operation of this engine, characterized in what it comprises means for measuring the temperature of the gases supplying the motor and means for correcting at least one parameter of operation control of the engine in rich mode according to this measured temperature, and in that the means for measuring the temperature include a temperature sensor for compressed air between a compressor a turbocharger and an air cooler associated with the engine.
- the subject of the invention is also a system for aiding regeneration of pollution control means integrated in an exhaust line of an engine of a motor vehicle, by tilting the motor between an operation in lean mode and rich mode operation, depending on parameters different control of the operation of this engine, characterized in what it comprises means for measuring the temperature of the gases supplying the motor and means for correcting at least one parameter of operation control of the engine in rich mode according to this measured temperature, and in that the means for measuring the temperature include an air temperature sensor before a compressor a turbocharger associated with the engine.
- the subject of the invention is also a system for aiding regeneration of pollution control means integrated in an exhaust line of an engine of a motor vehicle, by tilting the motor between an operation in lean mode and rich mode operation, depending on parameters different control of the operation of this engine, characterized in what it comprises means for measuring the temperature of the gases supplying the motor and means for correcting at least one parameter of operation control of the engine in rich mode according to this measured temperature, and in that the temperature measuring means comprise a temperature sensor of the compressed air between an air cooler and the inlet of the engine recycle gases.
- this figure shows a regeneration aid system.
- depollution means designated by the general reference 1 on this figure, integrated for example in an exhaust line 2 of a heat engine 3 of a motor vehicle.
- This engine is also associated with air supply means designated by the general reference 4 and means for controlling its diet in fuel designated by the general reference 5, comprising for example means with a common rail for supplying the fuel injectors in the cylinders of this engine.
- the depollution means comprise for example a NOx trap and the control means 6 are then adapted to switch the operation of the motor, between poor standard operation and in rich regeneration mode, according to different parameters of operation check of it.
- Parameters 7 are then used to drive the motor in poor operation, while the parameters 8 are used to operate the engine in rich regeneration mode.
- this system also comprises means for measuring the temperature of the engine supply gases, designated by the reference 9 in this figure, and means for correcting at least one parameter operating mode of the engine in rich mode, depending on this temperature measured in order to adapt this operation to the conditions encountered.
- the temperature of the gases is taken into account.
- engine power to correct in rich mode one or more of the parameters engine operation control according to this temperature actual measured.
- the parameter (s) may be one or more control parameters of the feed air loop of the such as, for example, air flow, exhaust gas recirculation, the turbocharger pressure if the engine is associated with such a turbocharger and / or one or more fuel injection control parameters in the cylinders thereof, such as, for example, the flow, the phase, or the pressure, etc ...
- the means for measuring the temperature can in turn be adapted to measure the temperature of the ambient environment of the vehicle, as measured for example in the air intake line in the engine, via a sensor placed for example before the compressor, if the engine is associated with a turbocharger or elsewhere on the vehicle, as example in a rearview mirror of it.
- this sensor can also be adapted to measure the temperature of the compressed air between the compressor and the air cooler motor supply or the temperature of the compressed air between the cooler of air and the entry of recycle gases into the engine.
- the parameters 8 used can then be in the form a pre-established map of values of the parameter or parameters according to the temperature and allowing depending on the measured temperature to get the or the corresponding parameters.
- the temperature measuring means can be formed for example in a flow meter.
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
- les moyens de dépollution comprennent un piège à NOx ;
- les moyens de mesure de température comprennent un capteur de température dans l'environnement du véhicule ;
- le capteur de température est formé dans un débitmètre ;
- le paramètre corrigé est un paramètre de contrôle d'injection de carburant dans le moteur ; et
- le paramètre corrigé est un paramètre de contrôle de la boucle d'air d'alimentation du moteur.
Claims (8)
- Système d'aide à la régénération de moyens de dépollution (1) intégrés dans une ligne d'échappement (2) d'un moteur thermique (3) d'un véhicule automobile, par basculement du moteur entre un fonctionnement en mode pauvre et un fonctionnement en mode riche, selon des paramètres différents (7,8) de contrôle du fonctionnement de ce moteur, caractérisé en ce qu'il comporte des moyens (9) de mesure de la température des gaz d'alimentation du moteur et des moyens (8) de correction d'au moins un paramètre de contrôle de fonctionnement du moteur en mode riche en fonction de cette température mesurée, et en ce que les moyens de mesure de la température comprennent un capteur de température de l'air comprimé entre un compresseur d'un turbocompresseur et un refroidisseur d'air associés au moteur (3).
- Système d'aide à la régénération de moyens de dépollution (1) intégrés dans une ligne d'échappement (2) d'un moteur thermique (3) d'un véhicule automobile, par basculement du moteur entre un fonctionnement en mode pauvre et un fonctionnement en mode riche, selon des paramètres différents (7,8) de contrôle du fonctionnement de ce moteur, caractérisé en ce qu'il comporte des moyens (9) de mesure de la température des gaz d'alimentation du moteur et des moyens (8) de correction d'au moins un paramètre de contrôle de fonctionnement du moteur en mode riche en fonction de cette température mesurée, et en ce que les moyens de mesure de la température comprennent un capteur de température de l'air avant un compresseur d'un turbocompresseur associé au moteur.
- Système d'aide à la régénération de moyens de dépollution (1) intégrés dans une ligne d'échappement (2) d'un moteur thermique (3) d'un véhicule automobile, par basculement du moteur entre un fonctionnement en mode pauvre et un fonctionnement en mode riche, selon des paramètres différents (7,8) de contrôle du fonctionnement de ce moteur, caractérisé en ce qu'il comporte des moyens (9) de mesure de la température des gaz d'alimentation du moteur et des moyens (8) de correction d'au moins un paramètre de contrôle de fonctionnement du moteur en mode riche en fonction de cette température mesurée, et en ce que les moyens de mesure de température comprennent un capteur de température de l'air comprimé entre un refroidisseur d'air et l'entrée des gaz de recyclage du moteur (3).
- Système selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de dépollution comprennent un piège à NOx.
- Système selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de mesure de température comprennent un capteur de température dans l'environnement du véhicule.
- Système selon l'une quelconque des revendications précédentes, caractérisé en ce que le capteur de température est formé dans un débitmètre.
- Système selon l'une quelconque des revendications précédentes, caractérisé en ce que le paramètre corrigé est un paramètre de contrôle d'injection de carburant dans le moteur.
- Système selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le paramètre corrigé est un paramètre de contrôle de la boucle d'air d'alimentation du moteur.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0401013 | 2004-02-03 | ||
| FR0401013A FR2865772B1 (fr) | 2004-02-03 | 2004-02-03 | Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echappement d'un moteur thermique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1561933A1 true EP1561933A1 (fr) | 2005-08-10 |
| EP1561933B1 EP1561933B1 (fr) | 2008-05-21 |
Family
ID=34673887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05290199A Expired - Lifetime EP1561933B1 (fr) | 2004-02-03 | 2005-01-28 | Système d'aide à la régénération de moyens de dépollution intégrés dans une ligne d'échappement d'un moteur thermique |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7367181B2 (fr) |
| EP (1) | EP1561933B1 (fr) |
| AT (1) | ATE396335T1 (fr) |
| DE (1) | DE602005006857D1 (fr) |
| ES (1) | ES2306040T3 (fr) |
| FR (1) | FR2865772B1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0994243A2 (fr) * | 1998-10-14 | 2000-04-19 | Nissan Motor Co., Ltd. | Dispositif de purification de gaz d'échappement |
| EP1028243A2 (fr) * | 1999-02-09 | 2000-08-16 | Mazda Motor Corporation | Dispositif de commande pour moteur à injection directe |
| EP1193383A2 (fr) * | 2000-09-29 | 2002-04-03 | Mazda Motor Corporation | Dispositif , méthode et programme d'ordinateur de commande du carburant d'un moteur |
| EP1302647A2 (fr) * | 2001-10-15 | 2003-04-16 | Toyota Jidosha Kabushiki Kaisha | Système de purification de gaz d'échappement pour moteur à combustion interne |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5888436A (ja) * | 1981-11-19 | 1983-05-26 | Honda Motor Co Ltd | 吸気温度による補正機能を有する内燃エンジンの空燃比補正装置 |
| JPH02163443A (ja) * | 1988-12-19 | 1990-06-22 | Toyota Motor Corp | 過給機付エンジンの制御装置 |
| DE4318078A1 (de) * | 1993-06-01 | 1994-12-08 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
| JP3356878B2 (ja) * | 1994-05-09 | 2002-12-16 | 本田技研工業株式会社 | 内燃機関の空燃比制御装置 |
| US5910099A (en) * | 1997-02-28 | 1999-06-08 | General Motors Corporation | Turbocharged engine cooling system control with fuel economy optimization |
| DE69816579T2 (de) * | 1997-12-19 | 2004-06-03 | Toyota Jidosha K.K., Toyota | Brennkraftmaschine mit NOx-Katalysator für Magergemischverbrennung |
| US6128899A (en) * | 1998-04-17 | 2000-10-10 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust gas purification system for internal combustion engine |
| US6053144A (en) * | 1998-11-05 | 2000-04-25 | Caterpillar Inc. | Diesel engine with a combustor which provides combustion products to reduce NOx production in a combustion chamber |
| JP3782269B2 (ja) * | 1999-11-12 | 2006-06-07 | 本田技研工業株式会社 | 内燃機関の空燃比制御装置 |
| US6347519B1 (en) * | 2000-03-31 | 2002-02-19 | Detroit Diesel Corporation | System and method for measuring recirculated exhaust gas flow in a compression-ignition engine |
-
2004
- 2004-02-03 FR FR0401013A patent/FR2865772B1/fr not_active Expired - Fee Related
-
2005
- 2005-01-28 ES ES05290199T patent/ES2306040T3/es not_active Expired - Lifetime
- 2005-01-28 AT AT05290199T patent/ATE396335T1/de not_active IP Right Cessation
- 2005-01-28 EP EP05290199A patent/EP1561933B1/fr not_active Expired - Lifetime
- 2005-01-28 DE DE602005006857T patent/DE602005006857D1/de not_active Expired - Lifetime
- 2005-02-02 US US11/048,121 patent/US7367181B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0994243A2 (fr) * | 1998-10-14 | 2000-04-19 | Nissan Motor Co., Ltd. | Dispositif de purification de gaz d'échappement |
| EP1028243A2 (fr) * | 1999-02-09 | 2000-08-16 | Mazda Motor Corporation | Dispositif de commande pour moteur à injection directe |
| EP1193383A2 (fr) * | 2000-09-29 | 2002-04-03 | Mazda Motor Corporation | Dispositif , méthode et programme d'ordinateur de commande du carburant d'un moteur |
| EP1302647A2 (fr) * | 2001-10-15 | 2003-04-16 | Toyota Jidosha Kabushiki Kaisha | Système de purification de gaz d'échappement pour moteur à combustion interne |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050166591A1 (en) | 2005-08-04 |
| ES2306040T3 (es) | 2008-11-01 |
| FR2865772B1 (fr) | 2007-12-14 |
| FR2865772A1 (fr) | 2005-08-05 |
| EP1561933B1 (fr) | 2008-05-21 |
| US7367181B2 (en) | 2008-05-06 |
| ATE396335T1 (de) | 2008-06-15 |
| DE602005006857D1 (de) | 2008-07-03 |
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