US20090241516A1 - System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line - Google Patents

System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line Download PDF

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Publication number
US20090241516A1
US20090241516A1 US12/066,765 US6676506A US2009241516A1 US 20090241516 A1 US20090241516 A1 US 20090241516A1 US 6676506 A US6676506 A US 6676506A US 2009241516 A1 US2009241516 A1 US 2009241516A1
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United States
Prior art keywords
injector
fuel
pump
pressure
supplied
Prior art date
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Abandoned
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US12/066,765
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English (en)
Inventor
Laurent Leprieur
Alexandre Martinez
Violaine Ploton
Nicolas Thouvenel
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Renault SAS
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Renault SAS
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Filing date
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: MARTINEZ, ALEXANDRE, PLOTON, VIOLAINE, LEPRIEUR, LAURENT, THOUVENEL, NICOLAS
Publication of US20090241516A1 publication Critical patent/US20090241516A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/05—Systems for adding substances into exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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 system and a method for regenerating a catalytic particulate filter located in the exhaust line of a diesel engine.
  • a catalytic particulate filter traps particles of soot emitted by the engine. To prevent the filter from becoming blocked, periodic regeneration phases burn off the trapped particles. The trapped particles are burnt off by increasing the temperature of the exhaust gases.
  • the French patent application filed under the number 04 53187 relates to the regeneration of a catalytic particulate filter by injecting fuel into the exhaust.
  • the fuel is injected by an injector located in the exhaust line of a diesel engine upstream of the catalytic particulate filter.
  • a system such as this for regenerating a catalytic particulate filter presents new risks should it fail.
  • that document does not disclose any system for monitoring the fuel pump that supplies fuel to the injector located in the exhaust line.
  • One object of the invention is to check that the state of activation of the fuel pump for supplying the injector in the vehicle exhaust line with fuel does actually correspond to the desired state of activation of the fuel pump.
  • the invention proposes a system for regenerating a catalytic particulate filter located in the exhaust line of a diesel engine.
  • the regeneration system comprises an electronic control unit, a controlled fuel injector located upstream of the catalytic particulate filter and supplied with fuel by a controlled pump, and a sensor for measuring the pressure at which fuel is supplied to said injector.
  • the system further comprises detection means for detecting a fault with the state of activation of the pump on the basis of the pressure at which fuel is supplied to said injector.
  • the detection means detect a fault with the state of activation of the pump when the pump is active when it should be inactive or when the pump is inactive when it should be active. It is therefore possible to detect defective operation of such a catalytic particulate filter regeneration system and thus be able to avoid failure of such a system.
  • the invention makes it possible to improve the safety of the occupants of the vehicle by detecting a failure in the state of activation of the pump used to supply fuel to the injector positioned upstream of the catalytic particulate filter.
  • said detection means comprise first comparison means for comparing the pressure at which fuel is supplied to said injector against a first threshold pressure.
  • said detection means comprise second comparison means for comparing the respective value of first system operating parameters against first predetermined values.
  • Conditions on system operating parameters need to be met in order for an inactivity fault with the pump to be able to be detected. In other words, conditions on system operating parameters have to be met in order to be able to detect that the pump is active when it should be inactive.
  • said detection means are designed to detect an inactivity fault with the pump when, for a period of time at least equal to a first predetermined period of time, the pressure at which fuel is supplied to said injector exceeds said first threshold pressure and said first parameters have adopted said respective first predetermined values.
  • said detection means comprise third comparison means for comparing the pressure at which fuel is supplied to said injector against a second threshold pressure.
  • said detection means comprise fourth comparison means for comparing the respective value of second system operating parameters against second predetermined values.
  • said detection means are designed to detect an activity fault with the pump when, for a period of time at least equal to a second predetermined period of time, the pressure at which said injector is supplied with fuel is below said second threshold pressure, and said second parameters have adopted said respective second predetermined values.
  • the first and second predetermined periods of time may, for example, be equal.
  • said first parameters comprise information representing the state of the demand for activation of said pump, information representing the state of stabilization of the pressure at which fuel is supplied to said injector, information representing the state of operation of the sensor that measures the pressure at which fuel is supplied to said injector, information representing the state of operation of said pump, and information representing the state of operation of said injector.
  • said second parameters comprise information representing the state of the demand for activation of said pump, information representing the state of operation of the sensor that measures the pressure at which fuel is supplied to said injector, information representing the state of operation of said pump, and information representing the state of operation of said injector.
  • said first predetermined values respectively represent the absence of a demand to activate the pump, a stabilized pressure, the absence of a fault with the operation of the sensor that measures the pressure at which fuel is supplied to said injector, the absence of a fault with the operation of said pump, and the absence of a fault with the operation of said injector.
  • said second predetermined values respectively represent a demand to activate the pump, the absence of a fault with the operation of the sensor that measures the pressure at which fuel is supplied to said injector, the absence of a fault with the operation of said pump, and the absence of a fault with the operation of said injector.
  • FIG. 1 is a block diagram of one embodiment of a system according to one aspect of the invention.
  • FIG. 2 is a block diagram illustrating the pressure at which fuel is supplied to the pump as a function of the pump activation command for normal pump operation
  • FIG. 3 is a block diagram of one embodiment of the method according to one aspect of the invention.
  • FIG. 1 depicts a system according to the invention, carried on board a motor vehicle.
  • the exhaust line 1 of a motor vehicle fitted with a diesel engine comprises a catalytic device 2 for oxidizing hydrocarbons and carbon monoxide.
  • the exhaust line also comprises a catalytic particulate filter 3 comprising an oxidation catalytic converter 4 and a particulate filter 5 .
  • An injector 6 sprays fuel upstream of the oxidation catalytic converter 4 .
  • the oxidation catalytic converter 4 is periodically called upon, during the phases in which the particulate filter 5 is being regenerated, to create heat to regenerate the particulate filter 5 .
  • Injecting fuel via the injector 6 allows the temperature of the exhaust gases to be raised.
  • the injector 6 is supplied with fuel by a line 7 connecting the injector 6 to a fuel tank 8 .
  • a fuel pump 9 supplies the injector 6 with pressurized fuel along the line 7 .
  • the fuel supply line 7 is equipped with a sensor 10 for measuring the pressure P at which the injector 6 is supplied with fuel.
  • the injector 6 , the sensor 10 and the pump 9 are connected to an electronic control unit 11 by connections 12 , 13 and 14 , respectively.
  • the electronic control unit 11 comprises a detection module 15 for detecting a fault with the state of activation of the pump 9 on the basis of the pressure P at which fuel is supplied to the injector 6 as measured by the pressure sensor 10 .
  • the detection module 15 comprises a first comparison module 16 for comparing the pressure P at which fuel is supplied to the injector 6 , as measured by the pressure sensor 10 , against a first threshold pressure P thresh — min .
  • the first comparison module 16 makes it possible to test whether the pressure P at which fuel is being supplied to the injector 6 is above a first threshold pressure P thresh — min .
  • the detection module 15 further comprises a second comparison module 17 for comparing the respective value of first system operating parameters against first predetermined values.
  • the first parameters comprise, for example, information representing the state of the demand for activation of the pump 9 , information representing the state of stabilization of the pressure P at which fuel is supplied to the injector 6 , information representing the state of operation of the sensor 9 that measures the pressure P at which fuel is supplied to the injector 6 , information representing the state of operation of the pump 9 , and information representing the state of operation of the injector 6 .
  • the detection module 15 also comprises a third comparison module 18 for comparing the pressure P at which fuel is supplied to the injector 6 against a second threshold pressure P thresh — max .
  • the detection module 15 comprises a fourth comparison module 19 for comparing the respective value of second system operating parameters against second predetermined values.
  • FIG. 2 is a schematic diagram of the change in the pressure P at which fuel is supplied to the injector 6 as a function of activation and deactivation of the pump 9 supplying fuel to the injector 6 .
  • FIG. 2 illustrates activation or deactivation of the pump 9 with no fault with the state of activation of the pump 9 .
  • the pressure P at which fuel is supplied to the injector 6 switches from the value P 1 to the value P 2 .
  • the pressure P at which fuel is supplied to the injector 6 is measured by the sensor 10 that measures the fuel pressure P in the line 7 .
  • the value P 1 is of the order of 3 bar
  • the value P 2 is of the order of 5.5 bar.
  • the pressure P at which fuel is supplied to the injector 6 remains stable at the value P 2 until a moment t 2 when deactivation of the fuel pump 9 is commanded.
  • the pressure P at which fuel is supplied to the injector 6 then decreases for a period of time ⁇ t deac until it reaches the value P 1 .
  • FIG. 3 illustrates one embodiment of the method according to the invention.
  • the pressure measuring sensor 10 continuously measures the pressure P at which the injector 6 is supplied, and transmits the measured values to the electronic control unit 11 via the connection 13 , (step 20 ). At the same time, a fault of activation of the pump 9 , and a fault of non-activation of the pump 9 are detected on the basis of the pressure P at which fuel is supplied to the injector 6 .
  • the branch 21 corresponds to detection of a fault of non-activation of the pump 9 and the branch 22 corresponds to detection of a fault of activation of the pump.
  • the starting point is to test whether the pressure P at which fuel is supplied to the injector 6 exceeds the first threshold pressure P thresh — min and whether the first system operating parameters have adopted the first predetermined values (step 23 ). This is because in order for there to be a fault of non-activation of the pump, that is to say in order for the pump to be active when it should be inactive, the pressure P at which fuel is supplied to the injector 6 has to exceed a first threshold pressure P thresh — min slightly above the pressure P 1 . The first system operating parameters have also to have adopted the first predetermined values.
  • step 23 If these conditions (step 23 ) are satisfied for at least a first predetermined period of time ⁇ t 1 (step 24 ) then a fault of non-activation of the pump (step 25 ) is detected because the pump is active when it should not be.
  • the starting point is to test whether the pressure P at which fuel is supplied to the injector 6 is below the second threshold pressure P thresh — max , and whether the second system operating parameters have adopted the second predetermined values (step 26 ).
  • the pressure P at which fuel is supplied to the injector 6 has to be below a second threshold pressure P thresh — max slightly lower than the pressure P 2 .
  • the second system operating parameters have also to have adopted the second predetermined values.
  • the information representing the state of the demand to activate the pump 9 to represent a demand to activate the pump 9
  • the information representing the state of operation of the sensor 10 that measures the pressure P at which fuel P is supplied to the injector 6 to represent the absence of a fault of the operation of the measurement sensor 10
  • the information representing the state of operation of the pump 9 to represent the absence of a fault in the operation of the pump 9
  • the information representing the state of operation of the injector 6 to represent the absence of a fault with the operation of the injector 6 .
  • a deactivated phase corresponds to a period ⁇ t deac , for example of the order of 30 minutes, during which the pressure drops from the value P 2 corresponding to the pump 9 being active to the value P 1 corresponding to the pump 9 being inactive.
  • the present invention makes it possible to check the state of activation of the pump that supplies fuel to an injector positioned upstream of a catalytic particulate filter and thus improve control over the operation of the filter regeneration phases.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US12/066,765 2005-09-13 2006-09-07 System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line Abandoned US20090241516A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0509334A FR2890686B1 (fr) 2005-09-13 2005-09-13 Systeme et procede de regeneration d'un filtre a particules catalytique situe dans la ligne d'echappement d'un moteur diesel
FR0509334 2005-09-13
PCT/FR2006/050852 WO2007031669A1 (fr) 2005-09-13 2006-09-07 Systeme et procede de regeneration d'un filtre a particules catalytique situe dans la ligne d'echappement d'un moteur diesel

Publications (1)

Publication Number Publication Date
US20090241516A1 true US20090241516A1 (en) 2009-10-01

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ID=36021817

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US12/066,765 Abandoned US20090241516A1 (en) 2005-09-13 2006-09-07 System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line

Country Status (9)

Country Link
US (1) US20090241516A1 (de)
EP (1) EP1929136B1 (de)
JP (1) JP2009508057A (de)
CN (1) CN101263284B (de)
AT (1) ATE491874T1 (de)
DE (1) DE602006018968D1 (de)
FR (1) FR2890686B1 (de)
RU (1) RU2409748C2 (de)
WO (1) WO2007031669A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111727305A (zh) * 2018-03-23 2020-09-29 神钢建机株式会社 包括发动机的工程机械
US20230193802A1 (en) * 2021-12-16 2023-06-22 Caterpillar Inc. Prognostic alert strategy for reductant pump in exhaust aftertreatment system for engine

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SE535632C2 (sv) * 2010-06-21 2012-10-23 Scania Cv Ab Förfarande vid förekomst av luft i vätsketillförsel vid ett SCR-system och motsvarande SCR-system
CN104329141A (zh) * 2014-10-29 2015-02-04 凯龙高科技股份有限公司 一种dpf柴油机颗粒过滤系统电控装置
KR101766110B1 (ko) * 2016-01-19 2017-08-07 현대자동차주식회사 분리형 hci 시스템의 고장여부 진단방법 및 장치

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US20080295490A1 (en) * 2007-05-31 2008-12-04 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Exhaust purification system for internal combustion engine
US20090188239A1 (en) * 2005-09-23 2009-07-30 Renault S.A.S. System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line
US20100162687A1 (en) * 2007-04-13 2010-07-01 Renault S.A.S. Method and device for the control of the operating state of the catalytic converter of the exhaust line of an internal combustion engine

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JP3607976B2 (ja) * 1999-03-29 2005-01-05 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2000303886A (ja) * 1999-04-20 2000-10-31 Denso Corp 高圧燃料系異常検出装置
EP1176290B1 (de) * 2000-07-24 2007-02-28 Toyota Jidosha Kabushiki Kaisha Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE10059427A1 (de) * 2000-11-30 2002-06-06 Bosch Gmbh Robert Einrichtung und Verfahren zur Nachbehandlung von Abgasen
JP2004324587A (ja) * 2003-04-25 2004-11-18 Mitsubishi Fuso Truck & Bus Corp 内燃機関の排気浄化装置
JP3896998B2 (ja) * 2003-07-08 2007-03-22 トヨタ自動車株式会社 内燃機関の排気浄化装置

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Publication number Priority date Publication date Assignee Title
US20090188239A1 (en) * 2005-09-23 2009-07-30 Renault S.A.S. System and method for regenerating a catalytic particulate filter located in a diesel engine exhaust line
US20100162687A1 (en) * 2007-04-13 2010-07-01 Renault S.A.S. Method and device for the control of the operating state of the catalytic converter of the exhaust line of an internal combustion engine
US20080295490A1 (en) * 2007-05-31 2008-12-04 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Exhaust purification system for internal combustion engine
US7963105B2 (en) * 2007-05-31 2011-06-21 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Exhaust purification system for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111727305A (zh) * 2018-03-23 2020-09-29 神钢建机株式会社 包括发动机的工程机械
US20230193802A1 (en) * 2021-12-16 2023-06-22 Caterpillar Inc. Prognostic alert strategy for reductant pump in exhaust aftertreatment system for engine
US11933211B2 (en) * 2021-12-16 2024-03-19 Caterpillar Inc. Prognostic alert strategy for reductant pump in exhaust aftertreatment system for engine

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Publication number Publication date
JP2009508057A (ja) 2009-02-26
RU2008114366A (ru) 2009-10-20
ATE491874T1 (de) 2011-01-15
FR2890686A1 (fr) 2007-03-16
CN101263284B (zh) 2010-05-19
EP1929136A1 (de) 2008-06-11
CN101263284A (zh) 2008-09-10
DE602006018968D1 (de) 2011-01-27
WO2007031669A1 (fr) 2007-03-22
RU2409748C2 (ru) 2011-01-20
EP1929136B1 (de) 2010-12-15
FR2890686B1 (fr) 2007-10-19

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