DE69626459T2 - Auswertungsvorrichtung der Leistungsverschlechterung eines Katalysators - Google Patents

Auswertungsvorrichtung der Leistungsverschlechterung eines Katalysators

Info

Publication number
DE69626459T2
DE69626459T2 DE69626459T DE69626459T DE69626459T2 DE 69626459 T2 DE69626459 T2 DE 69626459T2 DE 69626459 T DE69626459 T DE 69626459T DE 69626459 T DE69626459 T DE 69626459T DE 69626459 T2 DE69626459 T2 DE 69626459T2
Authority
DE
Germany
Prior art keywords
evaluating
deterioration
performance
catalytic converter
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
DE69626459T
Other languages
English (en)
Other versions
DE69626459D1 (de
Inventor
Toshio Tanahashi
Masakatsu Sanada
Koji Yokota
Shinichi Matsunaga
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
Application granted granted Critical
Publication of DE69626459D1 publication Critical patent/DE69626459D1/de
Publication of DE69626459T2 publication Critical patent/DE69626459T2/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
    • 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
    • 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
    • F01N2550/02—Catalytic activity of 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
DE69626459T 1995-10-25 1996-10-24 Auswertungsvorrichtung der Leistungsverschlechterung eines Katalysators Expired - Lifetime DE69626459T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27778095 1995-10-25
JP08161999A JP3135499B2 (ja) 1995-10-25 1996-06-21 触媒の劣化判定装置

Publications (2)

Publication Number Publication Date
DE69626459D1 DE69626459D1 (de) 2003-04-10
DE69626459T2 true DE69626459T2 (de) 2003-12-24

Family

ID=26487942

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69626459T Expired - Lifetime DE69626459T2 (de) 1995-10-25 1996-10-24 Auswertungsvorrichtung der Leistungsverschlechterung eines Katalysators

Country Status (4)

Country Link
US (1) US5722238A (de)
EP (1) EP0770768B1 (de)
JP (1) JP3135499B2 (de)
DE (1) DE69626459T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786586A3 (de) * 1996-06-21 1997-10-29 Toyota Motor Co Ltd Auswertungsvorrichtung der Leistungsverschlechterung eines Katalysators
JP2000204929A (ja) * 1999-01-11 2000-07-25 Mitsubishi Electric Corp 内燃機関の触媒劣化検出装置
US7918086B2 (en) * 2005-10-19 2011-04-05 Ford Global Technologies, Llc System and method for determining a NOx storage capacity of catalytic device
JP4747984B2 (ja) * 2006-07-31 2011-08-17 いすゞ自動車株式会社 触媒劣化量推定方法及び触媒劣化量推定装置
KR101305632B1 (ko) * 2011-09-21 2013-09-09 기아자동차주식회사 배기정화장치의 피독감지시스템 및 감지방법
JP5790545B2 (ja) * 2012-03-05 2015-10-07 三菱自動車工業株式会社 触媒診断装置及び触媒診断方法
JP7351318B2 (ja) * 2021-02-12 2023-09-27 トヨタ自動車株式会社 内燃機関の制御装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3303981B2 (ja) * 1991-12-20 2002-07-22 株式会社日立製作所 エンジン排気ガス浄化装置の診断装置
JP3088213B2 (ja) * 1993-03-16 2000-09-18 三菱電機株式会社 触媒コンバータの劣化検出装置
JP3157061B2 (ja) * 1993-04-26 2001-04-16 株式会社日立製作所 触媒劣化診断システム
JP3376651B2 (ja) * 1993-10-22 2003-02-10 株式会社デンソー 内燃機関の排気浄化装置
JPH09506949A (ja) * 1993-12-21 1997-07-08 シーメンス アクチエンゲゼルシヤフト 触媒の変換能力の検査方法
JP2785707B2 (ja) * 1994-09-20 1998-08-13 日産自動車株式会社 内燃機関の排気浄化装置
JP3475531B2 (ja) * 1994-12-06 2003-12-08 日産自動車株式会社 内燃機関における排気浄化触媒の性能回復装置

Also Published As

Publication number Publication date
JPH09177544A (ja) 1997-07-08
EP0770768A1 (de) 1997-05-02
EP0770768B1 (de) 2003-03-05
JP3135499B2 (ja) 2001-02-13
DE69626459D1 (de) 2003-04-10
US5722238A (en) 1998-03-03

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)