DE69500627T2 - Vorrichtung zur Feststellung der Degradierung eines Katalysators - Google Patents

Vorrichtung zur Feststellung der Degradierung eines Katalysators

Info

Publication number
DE69500627T2
DE69500627T2 DE69500627T DE69500627T DE69500627T2 DE 69500627 T2 DE69500627 T2 DE 69500627T2 DE 69500627 T DE69500627 T DE 69500627T DE 69500627 T DE69500627 T DE 69500627T DE 69500627 T2 DE69500627 T2 DE 69500627T2
Authority
DE
Germany
Prior art keywords
degradation
catalyst
determining
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 - Fee Related
Application number
DE69500627T
Other languages
English (en)
Other versions
DE69500627D1 (de
Inventor
Kenji Fukaya
Kazuo Hayashi
Makoto Hori
Masahiro Hamaya
Minoru Ohta
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.)
Denso Corp
Original Assignee
Denso 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 Denso Corp filed Critical Denso Corp
Application granted granted Critical
Publication of DE69500627D1 publication Critical patent/DE69500627D1/de
Publication of DE69500627T2 publication Critical patent/DE69500627T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01N11/007—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
DE69500627T 1994-02-18 1995-02-17 Vorrichtung zur Feststellung der Degradierung eines Katalysators Expired - Fee Related DE69500627T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2090994 1994-02-18
JP27350994 1994-11-08
JP32469394A JP3496307B2 (ja) 1994-02-18 1994-12-27 触媒劣化検知法及び空燃比センサ

Publications (2)

Publication Number Publication Date
DE69500627D1 DE69500627D1 (de) 1997-10-09
DE69500627T2 true DE69500627T2 (de) 1998-04-02

Family

ID=27283216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69500627T Expired - Fee Related DE69500627T2 (de) 1994-02-18 1995-02-17 Vorrichtung zur Feststellung der Degradierung eines Katalysators

Country Status (5)

Country Link
US (1) US5545377A (de)
EP (1) EP0668438B1 (de)
JP (1) JP3496307B2 (de)
CA (1) CA2142744C (de)
DE (1) DE69500627T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505040C2 (sv) * 1995-07-25 1997-06-16 Nordic Sensor Technologies Ab Mätcell för gasavkänning
US5899062A (en) * 1997-01-22 1999-05-04 Ford Global Technologies, Inc. Catalyst monitor using arc length ratio of pre- and post-catalyst sensor signals
US5998210A (en) * 1997-10-01 1999-12-07 Ford Global Technologies, Inc. Method and apparatus for aging a catalyst
JP3429180B2 (ja) * 1998-01-28 2003-07-22 日本特殊陶業株式会社 酸素センサ
SE514042C2 (sv) 1998-05-08 2000-12-18 Nordic Sensor Technologies Ab Sensoranordning
SE523918C2 (sv) 1999-01-25 2004-06-01 Appliedsensor Sweden Ab Förfarande för framställning av integrerade sensorgrupper på ett gemensamt substrat samt en mask för användning vid förfarandet
DE60040849D1 (de) * 1999-07-19 2009-01-02 Johnson Matthey Plc Überwachungsinstrument
JP4457464B2 (ja) * 2000-06-01 2010-04-28 トヨタ自動車株式会社 触媒劣化検出装置
US7198952B2 (en) * 2001-07-18 2007-04-03 Toyota Jidosha Kabushiki Kaisha Catalyst deterioration detecting apparatus and method
US6922985B2 (en) * 2003-01-21 2005-08-02 Daimlerchrysler Corporation Exhaust catalyst monitoring arrangement
JP4577161B2 (ja) * 2005-09-02 2010-11-10 トヨタ自動車株式会社 内燃機関の排気浄化装置
BRPI0701909A2 (pt) * 2007-05-03 2008-12-16 Fabio Cesar Atui clipe hemostÁtico, dispositivo para a aplicaÇço de um clipe hemostÁtico e seu uso
US8726723B2 (en) 2010-02-23 2014-05-20 Cummins Emission Solutions Detection of aftertreatment catalyst degradation
JP5331753B2 (ja) * 2010-06-04 2013-10-30 日立オートモティブシステムズ株式会社 エンジンの制御装置
US8932871B2 (en) * 2011-08-02 2015-01-13 GM Global Technology Operations LLC Ozone conversion sensors for an automobile
US8897955B2 (en) 2011-10-19 2014-11-25 GM Global Technology Operations LLC Ozone converting catalyst fault identification systems and methods
US9038369B2 (en) 2013-02-13 2015-05-26 Cummins Inc. Systems and methods for aftertreatment system diagnostics
JP6447813B2 (ja) * 2014-12-25 2019-01-09 三菱自動車工業株式会社 多気筒内燃機関の排気装置
US10982581B2 (en) 2019-03-07 2021-04-20 Ford Global Technologies, Llc Method and system for improving detecting an empty catalyst housing
WO2022168792A1 (ja) * 2021-02-05 2022-08-11 ヤマハ発動機株式会社 ストラドルドビークル

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639932B2 (ja) * 1985-06-13 1994-05-25 トヨタ自動車株式会社 内燃機関の空燃比制御装置
JPH0726578B2 (ja) * 1986-10-13 1995-03-29 トヨタ自動車株式会社 内燃機関の空燃比制御装置
JPH083421B2 (ja) * 1986-11-18 1996-01-17 株式会社ソキア 傾斜角検出器
US5154055A (en) * 1990-01-22 1992-10-13 Nippondenso Co., Ltd. Apparatus for detecting purification factor of catalyst
JPH0440355A (ja) 1990-06-05 1992-02-10 Daihatsu Motor Co Ltd 触媒コンバータの診断方法
US5077970A (en) * 1990-06-11 1992-01-07 Ford Motor Company Method of on-board detection of automotive catalyst degradation
JP2600987B2 (ja) * 1990-07-09 1997-04-16 日産自動車株式会社 空燃比制御装置の診断装置
US5313791A (en) * 1991-06-28 1994-05-24 Ford Motor Company Method for detecting catalyst malfunctions
JP2570930B2 (ja) * 1991-10-11 1997-01-16 トヨタ自動車株式会社 内燃機関の触媒劣化判別装置
JP2626384B2 (ja) * 1991-12-16 1997-07-02 トヨタ自動車株式会社 触媒劣化判別装置
JPH0620909A (ja) 1992-06-30 1994-01-28 Hitachi Ltd 露光方法及び薄膜多層基板
US5363647A (en) * 1992-10-13 1994-11-15 Mitsubishi Denki Kabushiki Kaisha Dual-sensor type air fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same
JP3303174B2 (ja) 1993-03-17 2002-07-15 アイシン精機株式会社 車上測位装置
JP3496765B2 (ja) 1993-05-11 2004-02-16 株式会社リコス Ｃａｔｖネットワークを利用したカラオケデータ配信システム
EP0634567B1 (de) * 1993-07-16 1996-09-18 Siemens Aktiengesellschaft Anpassung von Verfahren zur Katalysatorwirkungsgradüberprüfung an Katalysatoren mit unterschiedlichem Wirkungsgrad
US5390490A (en) * 1993-11-04 1995-02-21 Ford Motor Company Method and apparatus for measuring the efficacy of a catalytic converter

Also Published As

Publication number Publication date
CA2142744A1 (en) 1995-08-19
CA2142744C (en) 2001-07-24
EP0668438B1 (de) 1997-09-03
EP0668438A1 (de) 1995-08-23
JP3496307B2 (ja) 2004-02-09
JPH08189343A (ja) 1996-07-23
US5545377A (en) 1996-08-13
DE69500627D1 (de) 1997-10-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee