DE69921896D1 - Vorrichtung und Verfahren zum Feststellen der Verschlechterung eines NOx-Speicherkatalysators - Google Patents

Vorrichtung und Verfahren zum Feststellen der Verschlechterung eines NOx-Speicherkatalysators

Info

Publication number
DE69921896D1
DE69921896D1 DE69921896T DE69921896T DE69921896D1 DE 69921896 D1 DE69921896 D1 DE 69921896D1 DE 69921896 T DE69921896 T DE 69921896T DE 69921896 T DE69921896 T DE 69921896T DE 69921896 D1 DE69921896 D1 DE 69921896D1
Authority
DE
Germany
Prior art keywords
deterioration
determining
catalytic converter
nox storage
storage catalytic
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.)
Expired - Lifetime
Application number
DE69921896T
Other languages
English (en)
Other versions
DE69921896T2 (de
Inventor
Yasuyuki Itou
Kouji Ishihara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Application granted granted Critical
Publication of DE69921896D1 publication Critical patent/DE69921896D1/de
Publication of DE69921896T2 publication Critical patent/DE69921896T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N3/0828—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
    • 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
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration 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
    • 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
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • 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
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
    • 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
DE69921896T 1998-07-02 1999-07-01 Vorrichtung und Verfahren zum Feststellen der Verschlechterung eines NOx-Speicherkatalysators Expired - Lifetime DE69921896T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18714598A JP3684854B2 (ja) 1998-07-02 1998-07-02 内燃機関の触媒劣化診断装置
JP18714598 1998-07-02

Publications (2)

Publication Number Publication Date
DE69921896D1 true DE69921896D1 (de) 2004-12-23
DE69921896T2 DE69921896T2 (de) 2005-03-17

Family

ID=16200920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69921896T Expired - Lifetime DE69921896T2 (de) 1998-07-02 1999-07-01 Vorrichtung und Verfahren zum Feststellen der Verschlechterung eines NOx-Speicherkatalysators

Country Status (4)

Country Link
US (1) US6145305A (de)
EP (1) EP0969194B1 (de)
JP (1) JP3684854B2 (de)
DE (1) DE69921896T2 (de)

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DE19926139A1 (de) * 1999-06-09 2000-12-14 Volkswagen Ag Kalibrierung eines NOx-Sensors
DE19942270A1 (de) 1999-09-04 2001-03-15 Bosch Gmbh Robert Verfahren zum Betreiben einer Brennkraftmaschine
DE19963901A1 (de) * 1999-12-31 2001-07-12 Bosch Gmbh Robert Verfahren zum Betreiben eines Katalysators einer Brennkraftmaschine
WO2001053672A1 (de) * 2000-01-19 2001-07-26 Volkswagen Aktiengesellschaft VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINES NOx-SPEICHERKATALYSATORS
DE10003228A1 (de) * 2000-01-26 2001-09-06 Volkswagen Ag Verfahren und Vorrichtung zur Bestimmung einer NOx-Konzentration eines Abgasstromes einer Verbrennungskraftmaschine
US6360530B1 (en) * 2000-03-17 2002-03-26 Ford Global Technologies, Inc. Method and apparatus for measuring lean-burn engine emissions
US6860100B1 (en) * 2000-03-17 2005-03-01 Ford Global Technologies, Llc Degradation detection method for an engine having a NOx sensor
US6308515B1 (en) * 2000-03-17 2001-10-30 Ford Global Technologies, Inc. Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent
US6629453B1 (en) 2000-03-17 2003-10-07 Ford Global Technologies, Llc Method and apparatus for measuring the performance of an emissions control device
US6363715B1 (en) * 2000-05-02 2002-04-02 Ford Global Technologies, Inc. Air/fuel ratio control responsive to catalyst window locator
US6389803B1 (en) * 2000-08-02 2002-05-21 Ford Global Technologies, Inc. Emission control for improved vehicle performance
US6691507B1 (en) 2000-10-16 2004-02-17 Ford Global Technologies, Llc Closed-loop temperature control for an emission control device
JP3649130B2 (ja) * 2001-01-22 2005-05-18 トヨタ自動車株式会社 内燃機関の排気浄化装置
US6588200B1 (en) 2001-02-14 2003-07-08 Ford Global Technologies, Llc Method for correcting an exhaust gas oxygen sensor
US6622476B2 (en) * 2001-02-14 2003-09-23 Ford Global Technologies, Llc Lean NOx storage estimation based on oxygen concentration corrected for water gas shift reaction
US6546718B2 (en) 2001-06-19 2003-04-15 Ford Global Technologies, Inc. Method and system for reducing vehicle emissions using a sensor downstream of an emission control device
US6467259B1 (en) 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine
US6650991B2 (en) 2001-06-19 2003-11-18 Ford Global Technologies, Llc Closed-loop method and system for purging a vehicle emission control
US6615577B2 (en) 2001-06-19 2003-09-09 Ford Global Technologies, Llc Method and system for controlling a regeneration cycle of an emission control device
US6694244B2 (en) 2001-06-19 2004-02-17 Ford Global Technologies, Llc Method for quantifying oxygen stored in a vehicle emission control device
US6604504B2 (en) 2001-06-19 2003-08-12 Ford Global Technologies, Llc Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine
US6487853B1 (en) 2001-06-19 2002-12-03 Ford Global Technologies. Inc. Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor
US6453666B1 (en) 2001-06-19 2002-09-24 Ford Global Technologies, Inc. Method and system for reducing vehicle tailpipe emissions when operating lean
US6463733B1 (en) 2001-06-19 2002-10-15 Ford Global Technologies, Inc. Method and system for optimizing open-loop fill and purge times for an emission control device
US6553754B2 (en) 2001-06-19 2003-04-29 Ford Global Technologies, Inc. Method and system for controlling an emission control device based on depletion of device storage capacity
US6502387B1 (en) 2001-06-19 2003-01-07 Ford Global Technologies, Inc. Method and system for controlling storage and release of exhaust gas constituents in an emission control device
US6539706B2 (en) 2001-06-19 2003-04-01 Ford Global Technologies, Inc. Method and system for preconditioning an emission control device for operation about stoichiometry
US6490860B1 (en) 2001-06-19 2002-12-10 Ford Global Technologies, Inc. Open-loop method and system for controlling the storage and release cycles of an emission control device
US6691020B2 (en) 2001-06-19 2004-02-10 Ford Global Technologies, Llc Method and system for optimizing purge of exhaust gas constituent stored in an emission control device
DE10258876A1 (de) * 2002-12-06 2004-08-19 Volkswagen Ag Verfahren und Vorrichtung zur Diagnose eines NOx-Speicher-Katalysators bei stehendem Fahrzeug
US6925796B2 (en) * 2003-11-19 2005-08-09 Ford Global Technologies, Llc Diagnosis of a urea SCR catalytic system
DE102007001417B4 (de) * 2007-01-09 2009-11-12 Ford Global Technologies, LLC, Dearborn Vorrichtung zur Abschätzung des Beladungszustandes eines NOx-Speicherkatalysators
JP5604953B2 (ja) 2010-04-15 2014-10-15 いすゞ自動車株式会社 排気ガス浄化装置及び排気ガス浄化装置の制御方法
JP6614223B2 (ja) * 2017-03-31 2019-12-04 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP6435369B2 (ja) 2017-04-26 2018-12-05 株式会社キャタラー 排ガス浄化システム及び自動推進車両
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods

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WO1993025806A1 (en) * 1992-06-12 1993-12-23 Toyota Jidosha Kabushiki Kaisha Exhaust emission control system for internal combustion engine
JP2586739B2 (ja) 1992-06-12 1997-03-05 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2843879B2 (ja) * 1993-01-22 1999-01-06 本田技研工業株式会社 内燃エンジンの触媒劣化検出装置
JPH0797957A (ja) * 1993-09-30 1995-04-11 Honda Motor Co Ltd 内燃機関における排ガス浄化装置
JP2836522B2 (ja) * 1995-03-24 1998-12-14 トヨタ自動車株式会社 内燃機関の排気浄化装置
JPH08338297A (ja) * 1995-04-12 1996-12-24 Toyota Motor Corp 触媒劣化判定装置
JPH09195751A (ja) * 1996-01-18 1997-07-29 Toyota Motor Corp 電気ヒータを備えた触媒の劣化検出装置
JPH1071325A (ja) * 1996-06-21 1998-03-17 Ngk Insulators Ltd エンジン排ガス系の制御方法および触媒／吸着手段の劣化検出方法
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
JP3522472B2 (ja) 1996-12-25 2004-04-26 株式会社三協精機製作所 ディスクオルゴール装置

Also Published As

Publication number Publication date
JP3684854B2 (ja) 2005-08-17
EP0969194A3 (de) 2003-03-26
DE69921896T2 (de) 2005-03-17
JP2000018023A (ja) 2000-01-18
EP0969194A2 (de) 2000-01-05
US6145305A (en) 2000-11-14
EP0969194B1 (de) 2004-11-17

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