DE19681596T1 - Vorrichtung und Verfahren zum Erkennen einer Verschlechterung eines NO¶x¶-Katalysators in einem Dieselmotor - Google Patents

Vorrichtung und Verfahren zum Erkennen einer Verschlechterung eines NO¶x¶-Katalysators in einem Dieselmotor

Info

Publication number
DE19681596T1
DE19681596T1 DE19681596T DE19681596T DE19681596T1 DE 19681596 T1 DE19681596 T1 DE 19681596T1 DE 19681596 T DE19681596 T DE 19681596T DE 19681596 T DE19681596 T DE 19681596T DE 19681596 T1 DE19681596 T1 DE 19681596T1
Authority
DE
Germany
Prior art keywords
catalyst
diesel engine
detecting deterioration
deterioration
detecting
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Withdrawn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
DE19681596T
Other languages
English (en)
Inventor
Koutarou Wakamoto
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Publication of DE19681596T1 publication Critical patent/DE19681596T1/de
Withdrawn legal-status Critical Current

Links

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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N2550/02—Catalytic activity of catalytic converters
    • 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
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/023—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting HC
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02T10/12—Improving ICE efficiencies
    • 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
DE19681596T 1995-10-02 1996-10-01 Vorrichtung und Verfahren zum Erkennen einer Verschlechterung eines NO¶x¶-Katalysators in einem Dieselmotor Withdrawn DE19681596T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27835095A JP3852788B2 (ja) 1995-10-02 1995-10-02 ディーゼルエンジンのＮＯｘ 触媒の劣化検出装置およびその劣化検出方法
PCT/JP1996/002857 WO1997013058A1 (fr) 1995-10-02 1996-10-01 APPAREIL ET PROCEDE DE DETECTION DE LA DETERIORATION DU CATALYSEUR ANTI-NOx D'UN MOTEUR DIESEL

Publications (1)

Publication Number Publication Date
DE19681596T1 true DE19681596T1 (de) 1998-11-05

Family

ID=17596116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681596T Withdrawn DE19681596T1 (de) 1995-10-02 1996-10-01 Vorrichtung und Verfahren zum Erkennen einer Verschlechterung eines NO¶x¶-Katalysators in einem Dieselmotor

Country Status (5)

Country Link
US (1) US6079203A (de)
JP (1) JP3852788B2 (de)
DE (1) DE19681596T1 (de)
GB (1) GB2320581B (de)
WO (1) WO1997013058A1 (de)

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EP0881367B1 (de) * 1997-05-30 2002-10-16 Volkswagen Aktiengesellschaft Katalysatorsystem zur Entstickung von Abgasen bei Dieselbrennkraftmaschinen
JP3799824B2 (ja) * 1998-06-26 2006-07-19 日産自動車株式会社 内燃機関の排気浄化装置
US6336320B1 (en) * 1998-07-10 2002-01-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for an internal combustion engine
DE19911664A1 (de) * 1999-03-16 2000-09-21 Volkswagen Ag Kalibrierung eines NOx-Sensors
US6311484B1 (en) * 2000-02-22 2001-11-06 Engelhard Corporation System for reducing NOx transient emission
US6408616B1 (en) * 2000-07-20 2002-06-25 Ford Global Technologies, Inc. Diesel OBD-II system for detection of degradation of catalyst activity
DE10059427A1 (de) * 2000-11-30 2002-06-06 Bosch Gmbh Robert Einrichtung und Verfahren zur Nachbehandlung von Abgasen
DE10113010A1 (de) * 2001-03-17 2002-09-19 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Abgasnachbehandlungssystems
US6487852B1 (en) 2001-09-04 2002-12-03 Ford Global Technologies, Inc. Method and apparatus for controlling reactant injection into an active lean NOx catalyst
US7121085B2 (en) 2001-09-04 2006-10-17 Ford Global Technologies, Llc Method and apparatus for controlling hydrocarbon injection into engine exhaust to reduce NOx
US6546720B2 (en) 2001-09-04 2003-04-15 Ford Global Technologies, Inc. Method and apparatus for controlling the amount of reactant to be added to a substance using a sensor which is responsive to both the reactant and the substance
JP4093302B2 (ja) * 2002-03-29 2008-06-04 いすゞ自動車株式会社 ＮＯｘ浄化システムの触媒劣化判定方法及びＮＯｘ浄化システム
JP3969273B2 (ja) * 2002-10-03 2007-09-05 株式会社デンソー 内燃機関の排気浄化装置
US6862879B2 (en) 2002-11-21 2005-03-08 Ford Global Technologies, Llc Diesel aftertreatment system
US6895747B2 (en) 2002-11-21 2005-05-24 Ford Global Technologies, Llc Diesel aftertreatment systems
US6834498B2 (en) * 2002-11-21 2004-12-28 Ford Global Technologies, Llc Diesel aftertreatment systems
DE10254843A1 (de) * 2002-11-25 2004-06-03 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Abgasnachbehandlungssystems
JP2005090256A (ja) * 2003-09-12 2005-04-07 Toyota Motor Corp 内燃機関の排気浄化装置における圧力検出機構
FR2866925B1 (fr) * 2004-02-27 2006-10-13 Peugeot Citroen Automobiles Sa Procede de controle du traitement des gaz d'echappement d'un moteur thermique et vehicule a moteur thermique mettant en oeuvre ce procede
JP4290109B2 (ja) 2004-10-29 2009-07-01 日産ディーゼル工業株式会社 排気浄化装置
JP4640062B2 (ja) * 2005-09-12 2011-03-02 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP4718613B2 (ja) * 2005-09-29 2011-07-06 ボルボ ラストバグナー アーベー 排気後処理システムの診断方法
JP4760289B2 (ja) * 2005-10-17 2011-08-31 トヨタ自動車株式会社 内燃機関の排気浄化装置
FR2892766A1 (fr) * 2005-10-27 2007-05-04 Renault Sas Dispositif de traitement d'oxydes d'azote pour gaz d'echappement de vehicule automobile
JP2007315235A (ja) * 2006-05-24 2007-12-06 Toyota Motor Corp 内燃機関の排気浄化システム
JP4428361B2 (ja) * 2006-05-24 2010-03-10 トヨタ自動車株式会社 内燃機関の排気浄化システム
JP5590640B2 (ja) * 2007-08-01 2014-09-17 日産自動車株式会社 排気ガス浄化システム
US7624628B2 (en) * 2007-12-20 2009-12-01 Southwest Research Institute Monitoring of exhaust gas oxidation catalysts
DE102008005640A1 (de) * 2008-01-23 2009-07-30 Daimler Ag Verfahren zur Ermittlung der Stickstoffdioxidkonzentration in Abgasen
JP4666018B2 (ja) * 2008-07-29 2011-04-06 株式会社デンソー 内燃機関の排気浄化装置
US20100154387A1 (en) * 2008-12-19 2010-06-24 Toyota Jidosha Kabushiki Kaisha Abnormality detection device for reductant addition valve
WO2010093286A1 (en) * 2009-02-12 2010-08-19 Volvo Lastvagnar Ab Method for operating an exhaust aftertreatment system and exhaust aftertreatment system
US8156736B2 (en) * 2009-05-28 2012-04-17 GM Global Technology Operations LLC Exhaust hydrocarbon injection control system and method
CN102116191B (zh) * 2009-12-30 2014-04-09 中国第一汽车集团公司 一种氧传感器老化诊断方法
KR101406419B1 (ko) 2012-08-22 2014-06-13 현대자동차주식회사 Ｄｏｃ 재생주기 결정방법
JP6408363B2 (ja) * 2014-12-03 2018-10-17 日本碍子株式会社 触媒劣化診断方法
JP6401595B2 (ja) 2014-12-03 2018-10-10 日本碍子株式会社 触媒劣化診断方法
JP6374780B2 (ja) * 2014-12-03 2018-08-15 日本碍子株式会社 触媒劣化診断システムおよび触媒劣化診断方法
US10450934B2 (en) * 2016-08-04 2019-10-22 Mitsui Mining & Smelting Co., Ltd. Catalyst deterioration detecting system and catalyst deterioration detecting method

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JP2705039B2 (ja) * 1990-08-28 1998-01-26 本田技研工業株式会社 内燃エンジンの三元触媒の劣化検出装置
US5201802A (en) * 1991-02-04 1993-04-13 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification system for an internal combustion engine
JP2956257B2 (ja) * 1991-04-30 1999-10-04 いすゞ自動車株式会社 ディーゼル機関の触媒式排気浄化装置
JPH05195756A (ja) * 1992-01-21 1993-08-03 Hino Motors Ltd エンジンの排ガス浄化装置
JP3062710B2 (ja) * 1992-05-12 2000-07-12 マツダ株式会社 触媒の劣化検出装置
US5433074A (en) * 1992-07-30 1995-07-18 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for an engine
US5367875A (en) * 1992-12-07 1994-11-29 Coltec Industries Inc Automated catalytic reduction system
SE9301344D0 (sv) * 1993-04-22 1993-04-22 Siemens-Elema Ab Foerfarande och anordning foer att bestaemma volymen hos en baelgbehaallare foer medikament vid ett implanterbart infusionssystem
JPH07279651A (ja) * 1994-04-12 1995-10-27 Toyota Motor Corp 内燃機関の排気浄化装置
DE4426020B4 (de) * 1994-07-22 2005-07-28 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung der Funktionsfähigkeit eines Katalysators im Abgaskanal einer Brennkraftmaschine
US5584176A (en) * 1994-12-23 1996-12-17 Ford Motor Company Engine control to achieve rapid catalyst warm-up

Also Published As

Publication number Publication date
GB2320581A (en) 1998-06-24
US6079203A (en) 2000-06-27
GB9806354D0 (en) 1998-05-20
JP3852788B2 (ja) 2006-12-06
WO1997013058A1 (fr) 1997-04-10
JPH0996215A (ja) 1997-04-08
GB2320581B (en) 1999-12-01

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