WO2009041641A1 - 内燃機関の排気浄化システム - Google Patents

内燃機関の排気浄化システム Download PDF

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Publication number
WO2009041641A1
WO2009041641A1 PCT/JP2008/067532 JP2008067532W WO2009041641A1 WO 2009041641 A1 WO2009041641 A1 WO 2009041641A1 JP 2008067532 W JP2008067532 W JP 2008067532W WO 2009041641 A1 WO2009041641 A1 WO 2009041641A1
Authority
WO
WIPO (PCT)
Prior art keywords
nox
combustion engine
internal combustion
purification system
concentration
Prior art date
Application number
PCT/JP2008/067532
Other languages
English (en)
French (fr)
Inventor
Nobumoto Ohashi
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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 Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to EP08834127A priority Critical patent/EP2196646B1/en
Priority to US12/680,332 priority patent/US8402753B2/en
Publication of WO2009041641A1 publication Critical patent/WO2009041641A1/ja

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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
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • 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
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/91—NOx-storage component incorporated in the catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
    • 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
    • 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
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1612—SOx amount trapped in catalyst
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1614—NOx amount trapped in catalyst
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

本発明は、ＮＯｘ触媒に吸蔵されたＮＯｘをより好適に還元することを目的とする。本発明では、ＮＯｘ還元制御の実行条件が成立したときのＮＯｘ吸蔵量が所定吸蔵量より多いときにはＯ2濃度低下手段によって排気のＯ2濃度を低下させると共に還元剤供給手段によってＮＯｘ触媒に還元剤を供給することでＮＯｘ還元制御を実行する（Ｓ１０５、Ｓ１０６）。また、ＮＯｘ還元制御の実行条件が成立したときのＮＯｘ吸蔵量が所定吸蔵量以下のときはＯ2濃度低下手段によって排気のＯ2濃度を低下させることなく還元剤供給手段によってＮＯｘ触媒に還元剤を供給することでＮＯｘ還元制御を実行する（Ｓ１０６）。
PCT/JP2008/067532 2007-09-27 2008-09-26 内燃機関の排気浄化システム WO2009041641A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08834127A EP2196646B1 (en) 2007-09-27 2008-09-26 Exhaust gas purification system for an internal combustion engine
US12/680,332 US8402753B2 (en) 2007-09-27 2008-09-26 Exhaust gas purification system for an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-251983 2007-09-27
JP2007251983A JP5045339B2 (ja) 2007-09-27 2007-09-27 内燃機関の排気浄化システム

Publications (1)

Publication Number Publication Date
WO2009041641A1 true WO2009041641A1 (ja) 2009-04-02

Family

ID=40511521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067532 WO2009041641A1 (ja) 2007-09-27 2008-09-26 内燃機関の排気浄化システム

Country Status (4)

Country Link
US (1) US8402753B2 (ja)
EP (1) EP2196646B1 (ja)
JP (1) JP5045339B2 (ja)
WO (1) WO2009041641A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4706645B2 (ja) * 2007-02-23 2011-06-22 トヨタ自動車株式会社 内燃機関の排気浄化システム
FR2983904A1 (fr) * 2011-12-13 2013-06-14 Renault Sa Systeme et procede de controle de debit de carburant fourni par une soupape de dosage de carburant d'une ligne d'echappement d'un vehicule automobile
WO2013136463A1 (ja) 2012-03-14 2013-09-19 トヨタ自動車株式会社 内燃機関の制御装置
CN106232204A (zh) * 2014-02-28 2016-12-14 卡明斯公司 在发动期间管理后处理部件效率
JP6477088B2 (ja) * 2015-03-20 2019-03-06 いすゞ自動車株式会社 ＮＯｘ吸蔵量推定装置
JP6202031B2 (ja) * 2015-03-27 2017-09-27 トヨタ自動車株式会社 排気浄化制御装置
JP6550996B2 (ja) * 2015-07-16 2019-07-31 いすゞ自動車株式会社 吸蔵量推定装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002349252A (ja) * 2001-05-23 2002-12-04 Isuzu Motors Ltd 排気ガス浄化システム
JP2004052561A (ja) 2002-07-16 2004-02-19 Nissan Motor Co Ltd ディーゼルエンジンの排気浄化装置
JP2004162694A (ja) * 2002-09-20 2004-06-10 Mazda Motor Corp エンジンの排気浄化装置
JP2005291057A (ja) * 2004-03-31 2005-10-20 Mitsubishi Fuso Truck & Bus Corp 排気ガス浄化装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3237440B2 (ja) * 1995-02-28 2001-12-10 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP3487209B2 (ja) * 1999-02-23 2004-01-13 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2004005256A (ja) 2002-05-31 2004-01-08 Sony Corp データ配信方法、並びに、情報処理装置、情報処理方法及び情報処理プログラム
JP4288942B2 (ja) * 2002-12-20 2009-07-01 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP3770256B2 (ja) * 2003-08-08 2006-04-26 日産自動車株式会社 エンジンの排気浄化装置
JP4492145B2 (ja) * 2004-02-10 2010-06-30 いすゞ自動車株式会社 排気ガス浄化方法及び排気ガス浄化システム
FR2871849B1 (fr) * 2004-06-17 2006-09-08 Renault Sas Procede et dispositif pour gerer le fonctionnement d'un piege a oxydes d'azote, et diagnostiquer son etat de vieillissement
JP4417878B2 (ja) * 2005-05-16 2010-02-17 いすゞ自動車株式会社 排気ガス浄化方法及び排気ガス浄化システム
JP4677837B2 (ja) * 2005-07-08 2011-04-27 いすゞ自動車株式会社 排気ガス浄化システムの再生制御方法及び排気ガス浄化システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002349252A (ja) * 2001-05-23 2002-12-04 Isuzu Motors Ltd 排気ガス浄化システム
JP2004052561A (ja) 2002-07-16 2004-02-19 Nissan Motor Co Ltd ディーゼルエンジンの排気浄化装置
JP2004162694A (ja) * 2002-09-20 2004-06-10 Mazda Motor Corp エンジンの排気浄化装置
JP2005291057A (ja) * 2004-03-31 2005-10-20 Mitsubishi Fuso Truck & Bus Corp 排気ガス浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2196646A4 *

Also Published As

Publication number Publication date
JP2009085018A (ja) 2009-04-23
JP5045339B2 (ja) 2012-10-10
EP2196646A4 (en) 2011-08-10
EP2196646B1 (en) 2012-10-24
US20100242480A1 (en) 2010-09-30
US8402753B2 (en) 2013-03-26
EP2196646A1 (en) 2010-06-16

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