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WO2009038123A1 - 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
WO2009038123A1
WO2009038123A1 PCT/JP2008/066846 JP2008066846W WO2009038123A1 WO 2009038123 A1 WO2009038123 A1 WO 2009038123A1 JP 2008066846 W JP2008066846 W JP 2008066846W WO 2009038123 A1 WO2009038123 A1 WO 2009038123A1
Authority
WO
WIPO (PCT)
Prior art keywords
sox
emission rate
recovery control
poisoning recovery
lowering
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/JP2008/066846
Other languages
English (en)
French (fr)
Inventor
Masahide Iida
Nobumoto Ohashi
Atsushi Hayashi
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
Original Assignee
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 US12/678,635 priority Critical patent/US8375706B2/en
Priority to EP08832029A priority patent/EP2196647B1/en
Publication of WO2009038123A1 publication Critical patent/WO2009038123A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • 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—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents using means for controlling, e.g. purging, the absorbents or adsorbents
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • 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
    • 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
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/027—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting SOx
    • 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
    • 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
    • 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)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　吸蔵還元型ＮＯｘ触媒に対するＳＯｘ被毒回復制御をより短期間で完了することの可能な技術を提供する。 　ＳＯｘ被毒回復制御中において、ＮＯｘ触媒のＳＯｘ吸蔵量の減少に起因するＳＯｘ放出速度のＳＯｘ被毒回復制御開始時に対する低下度合い（ＳＯｘ放出速度低下度合いＤｄｗ）を推定する。そして、ＳＯｘ放出速度低下度合いＤｄｗが大きくなるに従って、触媒床温Ｔｃをより高温側の目標温度Ｔｃｔまで昇温させると共に、排気空燃比Ａ／Ｆをよりリッチ側の目標空燃比Ａ／Ｆｔまで低下させることにより、ＳＯｘ被毒回復制御中のＳＯｘ放出速度Ｖｓｏｘが低下することを抑制する。
PCT/JP2008/066846 2007-09-18 2008-09-18 内燃機関の排気浄化システム Ceased WO2009038123A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/678,635 US8375706B2 (en) 2007-09-18 2008-09-18 Exhaust gas purification system of an internal combustion engine
EP08832029A EP2196647B1 (en) 2007-09-18 2008-09-18 Exhaust gas purifying system for internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-241129 2007-09-18
JP2007241129A JP4816606B2 (ja) 2007-09-18 2007-09-18 内燃機関の排気浄化システム

Publications (1)

Publication Number Publication Date
WO2009038123A1 true WO2009038123A1 (ja) 2009-03-26

Family

ID=40467933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066846 Ceased WO2009038123A1 (ja) 2007-09-18 2008-09-18 内燃機関の排気浄化システム

Country Status (4)

Country Link
US (1) US8375706B2 (ja)
EP (1) EP2196647B1 (ja)
JP (1) JP4816606B2 (ja)
WO (1) WO2009038123A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5163809B2 (ja) * 2009-04-06 2013-03-13 トヨタ自動車株式会社 内燃機関の排気浄化装置
CN102667457B (zh) * 2009-11-26 2013-11-06 丰田自动车株式会社 硫磺成分检测装置
JP2011220158A (ja) * 2010-04-07 2011-11-04 Ud Trucks Corp エンジンの排気浄化装置
JP5768607B2 (ja) * 2011-09-05 2015-08-26 三菱自動車工業株式会社 内燃機関の排気浄化装置
JP5900728B2 (ja) * 2011-10-05 2016-04-06 三菱自動車工業株式会社 エンジンの排気浄化装置
WO2013161062A1 (ja) * 2012-04-27 2013-10-31 トヨタ自動車株式会社 内燃機関の制御装置
GB2504975A (en) * 2012-08-15 2014-02-19 Gm Global Tech Operations Inc Method of controlling a DeSOx regeneration process of a Lean NOx Trap
US9657665B2 (en) 2013-02-25 2017-05-23 Cummins Inc. System, method, and apparatus for sulfur recovery on an SCR catalyst
US9194268B2 (en) * 2013-10-14 2015-11-24 GM Global Technology Operations LLC Exhaust gas treatment system including an enhanced SCR diagnostic unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274228A (ja) * 1999-03-25 2000-10-03 Nissan Motor Co Ltd エンジンの排気浄化装置
JP2001349230A (ja) * 2000-06-07 2001-12-21 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2002256858A (ja) * 2001-02-26 2002-09-11 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2003097332A (ja) * 2001-09-25 2003-04-03 Mitsubishi Electric Corp 内燃機関の排気浄化装置および浄化法
JP2003293747A (ja) 2002-04-04 2003-10-15 Toyota Motor Corp 内燃機関の排気浄化装置及び触媒機能の管理方法
JP2005090253A (ja) 2003-09-12 2005-04-07 Toyota Motor Corp 内燃機関の排気浄化システム
JP2005291039A (ja) 2004-03-31 2005-10-20 Toyota Motor Corp 内燃機関の排気浄化システム
JP2006057467A (ja) * 2004-08-17 2006-03-02 Toyota Motor Corp 内燃機関の排気浄化装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3237607B2 (ja) * 1997-05-26 2001-12-10 トヨタ自動車株式会社 内燃機関の触媒被毒再生装置
JP3405183B2 (ja) * 1998-03-30 2003-05-12 トヨタ自動車株式会社 圧縮着火式内燃機関
JP3228232B2 (ja) * 1998-07-28 2001-11-12 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2004162694A (ja) * 2002-09-20 2004-06-10 Mazda Motor Corp エンジンの排気浄化装置
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
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
WO2006059470A1 (ja) 2004-11-30 2006-06-08 Isuzu Motors Limited 排気ガス浄化システムの脱硫制御方法及び排気ガス浄化システム
JP3969423B2 (ja) * 2005-01-06 2007-09-05 トヨタ自動車株式会社 内燃機関の排気浄化装置
US7481046B2 (en) * 2005-02-28 2009-01-27 Ford Global Technologies, Llc Method of desulfating a NOx storage and conversion device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274228A (ja) * 1999-03-25 2000-10-03 Nissan Motor Co Ltd エンジンの排気浄化装置
JP2001349230A (ja) * 2000-06-07 2001-12-21 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2002256858A (ja) * 2001-02-26 2002-09-11 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2003097332A (ja) * 2001-09-25 2003-04-03 Mitsubishi Electric Corp 内燃機関の排気浄化装置および浄化法
JP2003293747A (ja) 2002-04-04 2003-10-15 Toyota Motor Corp 内燃機関の排気浄化装置及び触媒機能の管理方法
JP2005090253A (ja) 2003-09-12 2005-04-07 Toyota Motor Corp 内燃機関の排気浄化システム
JP2005291039A (ja) 2004-03-31 2005-10-20 Toyota Motor Corp 内燃機関の排気浄化システム
JP2006057467A (ja) * 2004-08-17 2006-03-02 Toyota Motor Corp 内燃機関の排気浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2196647A4 *

Also Published As

Publication number Publication date
EP2196647B1 (en) 2012-10-24
EP2196647A1 (en) 2010-06-16
JP2009068481A (ja) 2009-04-02
US20100212296A1 (en) 2010-08-26
US8375706B2 (en) 2013-02-19
EP2196647A4 (en) 2011-11-16
JP4816606B2 (ja) 2011-11-16

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