US20090126346A1 - Protecting an oxidation catalyst upstream of a particulate filter for a diesel engine by limitation of injected fuel - Google Patents

Protecting an oxidation catalyst upstream of a particulate filter for a diesel engine by limitation of injected fuel Download PDF

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Publication number
US20090126346A1
US20090126346A1 US11/721,745 US72174505A US2009126346A1 US 20090126346 A1 US20090126346 A1 US 20090126346A1 US 72174505 A US72174505 A US 72174505A US 2009126346 A1 US2009126346 A1 US 2009126346A1
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United States
Prior art keywords
temperature
post
flow rate
air flow
exhaust line
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Abandoned
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US11/721,745
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English (en)
Inventor
Marc Daneau
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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
Assigned to RENAULT S.A.S reassignment RENAULT S.A.S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JULLIARD, ARNAUD, PILLOT, ADRIEN, DANEAU, MARC
Publication of US20090126346A1 publication Critical patent/US20090126346A1/en
Abandoned legal-status Critical Current

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    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • F02D41/405—Multiple injections with post injections
    • 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
    • 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
    • F02D2041/0265—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to decrease temperature of 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
    • 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
    • F02D41/029—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 particulate filter
    • 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
    • F02D41/1446—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 exhaust temperatures
    • 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
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
    • 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

Definitions

  • the present invention relates to a method for controlling an engine, and to an associated system for implementing same.
  • the present invention relates to a method for controlling a vehicle engine, preferably of the diesel type, and to a associated system for implementing same.
  • diesel engine vehicle exhaust systems are commonly equipped with an oxidation catalytic converter (CO) and a particulate filter (FAP) for limiting the pollutant emissions into the environment.
  • CO oxidation catalytic converter
  • FAP particulate filter
  • the CO stops the release of unburnt hydrocarbons and carbon monoxide into the environment.
  • the FAP stops the release of polluting articles of soot into the environment.
  • An FAP regeneration method consists in burning the polluting particles present in the FAP.
  • one or more delayed diesel injections are made in the engine combustion chambers during the expansion phase.
  • This post-injected diesel that is, injected after the top dead center
  • the CO liberates heat. This heat is used to raise the temperature of the gases in the exhaust line, thereby increasing the internal temperature or the FAP to a target temperature at which the particulates present in the FAP burn.
  • the temperature in the exhaust line depends on two main variables: the air flow rate in the exhaust line and the quantity of post-injected diesel.
  • the air flow rate in the exhaust line the lower the air flow rate, the higher the internal temperature of the exhaust line.
  • the higher the quantity of post-injected diesel the higher the internal temperature of the exhaust line.
  • the engine settings for reaching the target temperature at the FAP inlet are made for a liberation of heat at the thermomechanical limit (or “limit temperature before destruction”) of the CO. Moreover, these engine settings are made under steady state conditions. This means that for a constant air flow rate, the quantity of diesel to be post-injected to reach the target temperature in the exhaust line is determined.
  • the air flow rate in the exhaust line is not constant and may be lower than the air flow rate under steady state conditions.
  • the invention provides for a method or controlling an engine comprising an oxidation catalytic converter, the method comprising the step consisting, if at least one pre-defined criterion is satisfied, in calculating a maximum quantity of fuel to be post-injected based on a measured air flow rate and a limit operating temperature of the oxidation catalytic converter.
  • This engine control method is used to calculate the maximum allowable quantity of diesel to be injected to prevent the delayed injection of excessive quantities of fuel, causing damage to the CO by exceeding the limit operating temperature thereof.
  • post-injection means one or more injections of fuel into the compression chambers after the top dead center, that is, in the engine expansion phase.
  • limit operating temperature means the maximum temperature that the CO can withstand without damage. The use of the CO at a temperature above the limit operating temperature causes damage thereto.
  • the invention also relates to an engine comprising an oxidation catalytic converter, characterized in that it comprises a computer for calculating a maximum quantity of fuel to be post-injected based on a measured air flow rate and a limit operating temperature of the oxidation catalytic converter.
  • the invention also relates to a motor vehicle, the motor vehicle comprising an engine as previously described.
  • FIG. 1 is a diagram representing a system for implementing the inventive method
  • FIG. 2 is a graph showing the internal temperature of the oxidation catalytic converter as a function of an air flow rate and a quantity of post-injected diesel.
  • This figure show a motor vehicle 1 comprising a diesel type of engine 2 , that is, running on diesel fuel, and an exhaust line 3 equipped with an oxidation catalytic converter 4 , a flowmeter 8 , a computer 6 and a particulate filter 5 .
  • the computer 6 is suitable for supervising the operation of the engine 2 , the oxidation catalytic converter 4 and the particulate filter 5 .
  • the computer comprises, for example, one or more processors, one or more microcontrollers, one or more microcomputers, one or more programmable robots, one or more specific integrated circuits for application, or other programmable circuits know to a person skilled in the art.
  • the engine 2 comprises combustion chambers 7 into which the diesel is injected.
  • the diesel injection in the combustion chamber 7 is controlled by the computer 6 .
  • the oxidation catalytic converter (CO) 4 is located upstream of the particulate filter (FAP) 5 on the exhaust line 3 , that is, the CO 4 is closer to the engine 3 than the FAP 5 .
  • the CO 4 may also be directly installed in the FAP 5 .
  • the CO 4 comprises a catalytic agent such as a mixture of palladium and platinum.
  • the flowmeter 8 is used to measure the mass air flow rate in the exhaust line 3 .
  • the flowmeter 8 may be any type of air flowmeter such as a flow measuring instrument with a Pitot tube or a model.
  • the FAP 5 retains the particulates which accumulate therein as the engine 2 is used. This accumulation of particulate ultimately clogs the FAP 5 , creating a high backpressure at the exhaust of the engine 2 (that is, the gases have difficulty escaping from the engine), thereby considerably decreasing its performance. In order to recover the performance of the engine 2 , a method is used to regenerate the FAP 5 .
  • the FAP 5 regeneration method consists in raising the temperature of the exhaust gases to a target temperature to cause the combustion of the soot inside the FAP 5 .
  • a computer 6 controls delayed injections, or post-injections, in the combustion chambers 7 .
  • the post-injected diesel is expelled into she exhaust line 3 , then oxidized in the CO 4 which liberates heat during the conversion of the post-injected diesel to harmless gas.
  • This heat liberated by the CO 4 causes an increase in the gas temperature in the exhaust line 3 , and therefore also an increase in the internal temperature of the FAP.
  • the quantity of heat liberated by the CO depends on the quantity of post-injected diesel on the one hand, and the air flow rate in the exhaust line 3 on the other. In fact, it has been found that:
  • FIG. 2 is a graph showing the internal temperature of the CO (on the y-axis 13 ) as a function of the air flow rate (on the x-axis 14 ).
  • This graph comprises three segments 10 , 11 , 12 obtained for three different quantities of post-injected diesel.
  • the first segment 10 is obtained for a quantity of post-injected diesel of 5 mg/cp
  • the second segment 11 is obtained for a quantity of post-injected diesel of 10 mg/cp
  • the third segment 12 is obtained for a quantity of pest-injected diesel of 20 mg/cp.
  • T internal-catalyst f(Q air — mass ; Q post — delayed ),
  • the quantity of diesel to be post-injected is set for an air flow rate under steady state conditions, that is, for a constant air flow rate.
  • a problem therefore arises when the air flow rate of the engine is not equal to the air flow rate under steady state conditions, particularly during transients. Under these conditions, the real air flow rate may be lower than the value considered under steady state conditions, which guaranteed the integrity of the CO for the set post-injection quantity.
  • the internal temperature of the catalyst is then higher than the temperature observed under steady state conditions, causing damage to the CO.
  • the engine control method for limiting the quantities of post-injected diesel comprises the following steps.
  • One step of the method consists in measuring the real air flow rate in the exhaust line using the flowmeter 8 .
  • the measured value of the real air flow rate is sent to the computer 6 which compares it to a steady state air flow rate used for the engine settings suitable for reaching the target temperature.
  • Another step consists in determining, according to a set of criteria, whether a step for calculating a maximum allowable quantity of post-injected diesel can be activated. If the measured real air flow rate is lower than the steady state air flow rate, the step for calculating the maximum allowable quantity of post-injected diesel is carried out.
  • Another step consists in calculating the maximum allowable quantity of post-injected diesel.
  • the computer 6 uses an equation of the type
  • Q post — delayed — MAX is the maximum allowable volumetric quantity of post-injected diesel.
  • the mass air flow rate in the exhaust line is known because measured by the flowmeter 8 , the limit operating temperature of the CO is known because given by the manufacture so that the form of equation given above can be used to determine the maximum allowable quantity of post-injected diesel.
  • the computer orders the delayed injection into the combustion chambers of a quantity of diesel lower than or equal to the maximum allowable quantity of post-injected diesel calculated.
  • the engine control method for limiting the quantities of post-injected diesel can be used in association with a method for controlling the temperature in the exhaust line.
  • the method for controlling the temperature of the exhaust line comprises the following steps.
  • the temperature in the exhaust line is measured using a temperature sensor placed upstream of the FAP.
  • the computer orders an increase in the quantity of post-injected fuel to raise the gas temperature in the exhaust line to the target temperature. In contrast, if the temperature measured by the temperature sensor is higher the target temperature, the computer orders a decrease in the quantity of post-injected fuel to lower the temperature of the gases to the target temperature.
  • the control method uses saturation terminals to limit the quantity of post-injected diesel. By using the method for limiting the quantity of post-injected diesel in the computer, this serves to adapt the saturation terminals used in the temperature control method and thereby avoid the risk of catalyst damage.
  • the engine employed to describe the engine control method was a diesel type of vehicle engine, that is to say running on diesel fuel.
  • the engine control method can be implemented in other engine categories—high-pressure cleaning engine, concrete mixer engine, etc.
  • the engine control method can also be implemented in engines running on other motor fuels, such as gasoline engines.

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)
US11/721,745 2004-12-14 2005-12-01 Protecting an oxidation catalyst upstream of a particulate filter for a diesel engine by limitation of injected fuel Abandoned US20090126346A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0413262 2004-12-14
FR0413262A FR2879254B1 (fr) 2004-12-14 2004-12-14 Protection du catalyseur d'oxydation place en amont de filtre a particules pour moteur diesel par limitation de carburant injecte
PCT/FR2005/051026 WO2006064143A1 (fr) 2004-12-14 2005-12-01 Protection d’un catalyseur d'oxydation place en amont de filtre a particules pour moteur diesel par limitation de carburant injecte

Publications (1)

Publication Number Publication Date
US20090126346A1 true US20090126346A1 (en) 2009-05-21

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Application Number Title Priority Date Filing Date
US11/721,745 Abandoned US20090126346A1 (en) 2004-12-14 2005-12-01 Protecting an oxidation catalyst upstream of a particulate filter for a diesel engine by limitation of injected fuel

Country Status (7)

Country Link
US (1) US20090126346A1 (fr)
EP (1) EP1834074B1 (fr)
JP (1) JP2008523321A (fr)
AT (1) ATE500412T1 (fr)
DE (1) DE602005026709D1 (fr)
FR (1) FR2879254B1 (fr)
WO (1) WO2006064143A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100222982A1 (en) * 2009-02-27 2010-09-02 Gm Global Technology Operations, Inc. Torque model-based cold start diagnostic systems and methods
EP2550442A4 (fr) * 2010-03-23 2016-06-01 Scania Cv Abp Procédé d'adaptation d'un capteur de débit massique
EP2550447A4 (fr) * 2010-03-23 2016-06-01 Scania Cv Abp Procédé de détermination d'une relation entre le temps de fonctionnement pour un injecteur d'un cylindre dans un moteur à combustion et la quantité de combustible injectée par l'injecteur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4306722B2 (ja) 2006-11-24 2009-08-05 トヨタ自動車株式会社 燃料噴射装置
JP4630861B2 (ja) * 2006-11-27 2011-02-09 トヨタ自動車株式会社 内燃機関の排気浄化装置
CN101571077A (zh) * 2008-04-29 2009-11-04 福特环球技术公司 增加直喷式增压内燃发动机的扭矩的方法

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US3145722A (en) * 1962-02-28 1964-08-25 Robertshaw Controls Co Pneumatic controller
US4831821A (en) * 1986-06-11 1989-05-23 Toyota Jidosha Kabushiki Kaisha System for purifying exhaust gas from a diesel engine
US4887426A (en) * 1987-08-28 1989-12-19 Webasto Ag Fahrzeugtechnik Process and device for operating an exhaust gas burner
US5953911A (en) * 1998-02-04 1999-09-21 Goal Line Environmental Technologies Llc Regeneration of catalyst/absorber
US6021639A (en) * 1995-06-28 2000-02-08 Mitsubishi Heavy Industries, Ltd. Black smoke eliminating device for internal combustion engine and exhaust gas cleaning system including the device
US6314722B1 (en) * 1999-10-06 2001-11-13 Matros Technologies, Inc. Method and apparatus for emission control
US20020157386A1 (en) * 2001-03-27 2002-10-31 Satoshi Hiranuma Exhaust emission control system of internal combustion engine
US20020178716A1 (en) * 2001-12-18 2002-12-05 Hepburn Jeffrey Scott System and method for removing NOx from an emission control device
US20030200745A1 (en) * 2002-04-24 2003-10-30 Ford Global Technologies, Inc. Control for diesel engine with particulate filter
US6823663B2 (en) * 2002-11-21 2004-11-30 Ford Global Technologies, Llc Exhaust gas aftertreatment systems
US6851258B2 (en) * 2002-06-28 2005-02-08 Nissan Motor Co., Ltd. Regeneration of particulate filter
US6865472B2 (en) * 2002-09-27 2005-03-08 Horiba Ltd. Vehicle-installed exhaust gas analyzing apparatus
US6941746B2 (en) * 2002-11-21 2005-09-13 Combustion Components Associates, Inc. Mobile diesel selective catalytic reduction systems and methods
US6948311B2 (en) * 2000-11-11 2005-09-27 Robert Bosch Gmbh Method and device for controlling an exhaust gas aftertreatment system
US7275365B2 (en) * 2004-11-05 2007-10-02 Southwest Research Institute Method for controlling temperature in a diesel particulate filter during regeneration
US7313913B2 (en) * 2004-03-15 2008-01-01 Denso Corporation Exhaust gas purification system of internal combustion engine
US7634907B2 (en) * 2003-11-07 2009-12-22 Peugeot Citroen Automobiles Sa System for assisting in the regeneration of motor vehicle depollution means integrated in an exhaust line of a vehicle diesel engine

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JP3750195B2 (ja) * 1996-05-30 2006-03-01 株式会社デンソー 内燃機関の窒素酸化物浄化装置
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FR2804168B1 (fr) * 2000-01-20 2002-08-02 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration d'un filtre a particules integre dans une ligne d'echappement d'un moteur diesel de vehicule automobile
ATE354722T1 (de) * 2000-03-09 2007-03-15 Volkswagen Ag Verfahren und vorrichtung zur steuerung einer heizmassnahme in einer abgasreinigungsanlage von brennkraftmaschinen
JP3951619B2 (ja) * 2001-02-22 2007-08-01 いすゞ自動車株式会社 連続再生型ディーゼルパティキュレートフィルタ装置及びその再生制御方法
JP3755495B2 (ja) * 2002-08-09 2006-03-15 マツダ株式会社 エンジンの排気浄化装置
FR2846049B1 (fr) * 2002-10-18 2006-06-23 Renault Sa Procede de regeneration d'un filtre a particules et dispositif de mise en oeuvre
JP4135495B2 (ja) * 2002-12-20 2008-08-20 いすゞ自動車株式会社 燃料噴射制御装置

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145722A (en) * 1962-02-28 1964-08-25 Robertshaw Controls Co Pneumatic controller
US4831821A (en) * 1986-06-11 1989-05-23 Toyota Jidosha Kabushiki Kaisha System for purifying exhaust gas from a diesel engine
US4887426A (en) * 1987-08-28 1989-12-19 Webasto Ag Fahrzeugtechnik Process and device for operating an exhaust gas burner
US6021639A (en) * 1995-06-28 2000-02-08 Mitsubishi Heavy Industries, Ltd. Black smoke eliminating device for internal combustion engine and exhaust gas cleaning system including the device
US5953911A (en) * 1998-02-04 1999-09-21 Goal Line Environmental Technologies Llc Regeneration of catalyst/absorber
US6314722B1 (en) * 1999-10-06 2001-11-13 Matros Technologies, Inc. Method and apparatus for emission control
US6948311B2 (en) * 2000-11-11 2005-09-27 Robert Bosch Gmbh Method and device for controlling an exhaust gas aftertreatment system
US20020157386A1 (en) * 2001-03-27 2002-10-31 Satoshi Hiranuma Exhaust emission control system of internal combustion engine
US20020178716A1 (en) * 2001-12-18 2002-12-05 Hepburn Jeffrey Scott System and method for removing NOx from an emission control device
US20030200745A1 (en) * 2002-04-24 2003-10-30 Ford Global Technologies, Inc. Control for diesel engine with particulate filter
US6851258B2 (en) * 2002-06-28 2005-02-08 Nissan Motor Co., Ltd. Regeneration of particulate filter
US6865472B2 (en) * 2002-09-27 2005-03-08 Horiba Ltd. Vehicle-installed exhaust gas analyzing apparatus
US6941746B2 (en) * 2002-11-21 2005-09-13 Combustion Components Associates, Inc. Mobile diesel selective catalytic reduction systems and methods
US6823663B2 (en) * 2002-11-21 2004-11-30 Ford Global Technologies, Llc Exhaust gas aftertreatment systems
US7634907B2 (en) * 2003-11-07 2009-12-22 Peugeot Citroen Automobiles Sa System for assisting in the regeneration of motor vehicle depollution means integrated in an exhaust line of a vehicle diesel engine
US7313913B2 (en) * 2004-03-15 2008-01-01 Denso Corporation Exhaust gas purification system of internal combustion engine
US7275365B2 (en) * 2004-11-05 2007-10-02 Southwest Research Institute Method for controlling temperature in a diesel particulate filter during regeneration

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100222982A1 (en) * 2009-02-27 2010-09-02 Gm Global Technology Operations, Inc. Torque model-based cold start diagnostic systems and methods
US8364376B2 (en) * 2009-02-27 2013-01-29 GM Global Technology Operations LLC Torque model-based cold start diagnostic systems and methods
EP2550442A4 (fr) * 2010-03-23 2016-06-01 Scania Cv Abp Procédé d'adaptation d'un capteur de débit massique
EP2550447A4 (fr) * 2010-03-23 2016-06-01 Scania Cv Abp Procédé de détermination d'une relation entre le temps de fonctionnement pour un injecteur d'un cylindre dans un moteur à combustion et la quantité de combustible injectée par l'injecteur

Also Published As

Publication number Publication date
FR2879254A1 (fr) 2006-06-16
EP1834074B1 (fr) 2011-03-02
JP2008523321A (ja) 2008-07-03
EP1834074A1 (fr) 2007-09-19
WO2006064143A1 (fr) 2006-06-22
ATE500412T1 (de) 2011-03-15
FR2879254B1 (fr) 2007-01-26
DE602005026709D1 (de) 2011-04-14

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