WO2008111639A1 - 触媒劣化判定装置 - Google Patents

触媒劣化判定装置 Download PDF

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Publication number
WO2008111639A1
WO2008111639A1 PCT/JP2008/054602 JP2008054602W WO2008111639A1 WO 2008111639 A1 WO2008111639 A1 WO 2008111639A1 JP 2008054602 W JP2008054602 W JP 2008054602W WO 2008111639 A1 WO2008111639 A1 WO 2008111639A1
Authority
WO
WIPO (PCT)
Prior art keywords
catalyst
sensor output
oxygen
ammonia
vnh3
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.)
Ceased
Application number
PCT/JP2008/054602
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English (en)
French (fr)
Inventor
Kenji Katoh
Kei Masuda
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.)
Toyota Motor Corp
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Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to EP08722006.7A priority Critical patent/EP2136046B1/en
Priority to CN2008800013979A priority patent/CN101578434B/zh
Priority to US12/517,430 priority patent/US8033168B2/en
Publication of WO2008111639A1 publication Critical patent/WO2008111639A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/03—Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
    • 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
    • F01N2560/021—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting ammonia NH3
    • 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
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • 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
    • F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature 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
    • 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
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　排気浄化触媒の下流の酸素濃度を考慮することで、触媒劣化判定を精度良く行うことが可能な触媒劣化判定装置を提供する。触媒活性状態である場合に、ＮＳＲ触媒下流の酸素センサ出力VO2とアンモニアセンサ出力VNH3を読み込む（ステップ１０４）。この読み込まれた酸素センサ出力VO2が基準値α以上であり、かつ、アンモニアセンサ出力VNH3が基準値β以上である場合には、ＮＳＲ触媒において酸素存在下でアンモニアの酸化反応が起こらないと推定される。この場合、ＮＳＲ触媒が劣化していると判定される（ステップ１０８，１１，１１４）。
PCT/JP2008/054602 2007-03-13 2008-03-13 触媒劣化判定装置 Ceased WO2008111639A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08722006.7A EP2136046B1 (en) 2007-03-13 2008-03-13 Device for judging deterioration of catalyst
CN2008800013979A CN101578434B (zh) 2007-03-13 2008-03-13 催化剂劣化判定装置
US12/517,430 US8033168B2 (en) 2007-03-13 2008-03-13 Catalyst deterioration judgment device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007063353A JP4665923B2 (ja) 2007-03-13 2007-03-13 触媒劣化判定装置
JP2007-063353 2007-03-13

Publications (1)

Publication Number Publication Date
WO2008111639A1 true WO2008111639A1 (ja) 2008-09-18

Family

ID=39759570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054602 Ceased WO2008111639A1 (ja) 2007-03-13 2008-03-13 触媒劣化判定装置

Country Status (5)

Country Link
US (1) US8033168B2 (ja)
EP (1) EP2136046B1 (ja)
JP (1) JP4665923B2 (ja)
CN (1) CN101578434B (ja)
WO (1) WO2008111639A1 (ja)

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US8726723B2 (en) * 2010-02-23 2014-05-20 Cummins Emission Solutions Detection of aftertreatment catalyst degradation
CA2750738C (en) 2010-03-15 2014-04-29 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
CA2755977C (en) 2010-03-15 2014-01-21 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
US9032711B2 (en) 2010-04-01 2015-05-19 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
CN102859160B (zh) * 2010-04-23 2015-09-09 丰田自动车株式会社 催化剂异常诊断装置
CN102985647B (zh) 2010-07-28 2015-06-03 丰田自动车株式会社 内燃机的排气净化装置
CN103003539B (zh) 2010-08-30 2015-03-18 丰田自动车株式会社 内燃机的排气净化装置
US9121325B2 (en) 2010-08-30 2015-09-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
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EP2484876B8 (en) 2010-12-06 2016-09-14 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification method for internal combustion engine
JP5182428B2 (ja) 2010-12-20 2013-04-17 トヨタ自動車株式会社 内燃機関の排気浄化装置
CN103492683B (zh) 2010-12-24 2016-04-20 丰田自动车株式会社 内燃机的排气净化装置
EP2541009B9 (en) * 2011-01-17 2018-02-28 Toyota Jidosha Kabushiki Kaisha Exhaust purification device for internal combustion engine
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EP2698513B1 (en) * 2011-04-12 2016-10-19 Toyota Jidosha Kabushiki Kaisha APPARATUS FOR DETECTING DETERIORATION OF NOx SELECTIVE REDUCTION CATALYST
JP5218672B2 (ja) 2011-04-15 2013-06-26 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP5679913B2 (ja) * 2011-06-14 2015-03-04 住友重機械工業株式会社 クライオポンプ制御装置、クライオポンプシステム、及びクライオポンプ監視方法
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WO2013035155A1 (ja) * 2011-09-06 2013-03-14 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102011083775B4 (de) 2011-09-29 2013-12-05 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
BR112014000026B1 (pt) 2011-11-07 2021-02-09 Toyota Jidosha Kabushiki Kaisha sistema de purificação de exaustão de motor de combustão interna
WO2013069115A1 (ja) 2011-11-09 2013-05-16 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP5724839B2 (ja) * 2011-11-16 2015-05-27 トヨタ自動車株式会社 触媒劣化判定システム
EP2626528B1 (en) 2011-11-30 2016-10-26 Toyota Jidosha Kabushiki Kaisha Exhaust purification device for internal combustion engine
WO2013080328A1 (ja) 2011-11-30 2013-06-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8402741B1 (en) * 2012-01-31 2013-03-26 United Technologies Corporation Gas turbine engine shaft bearing configuration
CN103518045B (zh) 2012-02-07 2016-01-27 丰田自动车株式会社 内燃机的排气净化装置
JP5790868B2 (ja) * 2012-03-07 2015-10-07 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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JP6350444B2 (ja) 2015-08-10 2018-07-04 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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Title
See also references of EP2136046A4 *

Also Published As

Publication number Publication date
EP2136046B1 (en) 2014-08-13
US8033168B2 (en) 2011-10-11
EP2136046A4 (en) 2011-05-11
CN101578434A (zh) 2009-11-11
US20100005873A1 (en) 2010-01-14
CN101578434B (zh) 2011-08-03
EP2136046A1 (en) 2009-12-23
JP2008223611A (ja) 2008-09-25
JP4665923B2 (ja) 2011-04-06

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