DE69612326D1 - Vorrichtung zum Feststellen der Verschlechterung eines Katalysators einer Brennkraftmaschine - Google Patents

Vorrichtung zum Feststellen der Verschlechterung eines Katalysators einer Brennkraftmaschine

Info

Publication number
DE69612326D1
DE69612326D1 DE69612326T DE69612326T DE69612326D1 DE 69612326 D1 DE69612326 D1 DE 69612326D1 DE 69612326 T DE69612326 T DE 69612326T DE 69612326 T DE69612326 T DE 69612326T DE 69612326 D1 DE69612326 D1 DE 69612326D1
Authority
DE
Germany
Prior art keywords
deterioration
determining
combustion engine
internal combustion
catalytic converter
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
DE69612326T
Other languages
English (en)
Other versions
DE69612326T2 (de
Inventor
Noritake Mitsutani
Shin Adachi
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
Priority claimed from JP07144690A external-priority patent/JP3139328B2/ja
Priority claimed from JP7191527A external-priority patent/JPH0941951A/ja
Priority claimed from JP05589196A external-priority patent/JP3156582B2/ja
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of DE69612326D1 publication Critical patent/DE69612326D1/de
Application granted granted Critical
Publication of DE69612326T2 publication Critical patent/DE69612326T2/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
    • F01N11/007—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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)
DE69612326T 1995-06-12 1996-06-11 Vorrichtung zum Feststellen der Verschlechterung eines Katalysators einer Brennkraftmaschine Expired - Lifetime DE69612326T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP07144690A JP3139328B2 (ja) 1995-06-12 1995-06-12 内燃機関の触媒劣化判別装置
JP7191527A JPH0941951A (ja) 1995-07-27 1995-07-27 内燃機関の触媒劣化判別装置
JP05589196A JP3156582B2 (ja) 1996-03-13 1996-03-13 内燃機関の触媒劣化判別装置

Publications (2)

Publication Number Publication Date
DE69612326D1 true DE69612326D1 (de) 2001-05-10
DE69612326T2 DE69612326T2 (de) 2001-08-23

Family

ID=27295739

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69612326T Expired - Lifetime DE69612326T2 (de) 1995-06-12 1996-06-11 Vorrichtung zum Feststellen der Verschlechterung eines Katalysators einer Brennkraftmaschine

Country Status (3)

Country Link
US (1) US5724809A (de)
EP (1) EP0748927B1 (de)
DE (1) DE69612326T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5887421A (en) * 1996-03-18 1999-03-30 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting the deterioration of a three-way catalytic converter for an internal combustion engine
JP3336854B2 (ja) * 1996-04-11 2002-10-21 トヨタ自動車株式会社 内燃機関の触媒劣化判別装置
JP4092743B2 (ja) * 1996-07-05 2008-05-28 マツダ株式会社 エンジンの触媒劣化検出方法およびその装置
JP3267188B2 (ja) * 1997-05-12 2002-03-18 トヨタ自動車株式会社 内燃機関の触媒劣化判定装置
US6050128A (en) * 1998-05-28 2000-04-18 Ford Global Technologies, Inc. Catalyst deterioration monitoring
US6336320B1 (en) * 1998-07-10 2002-01-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for an internal combustion engine
DE19913901C2 (de) * 1999-03-26 2001-10-18 Siemens Ag Verfahren zum Überprüfen der Funktionsfähigkeit eines Katalysators
US6195986B1 (en) * 1999-06-21 2001-03-06 Ford Global Technologies, Inc. Method and system for monitoring a catalytic converter
DE19932715A1 (de) * 1999-07-16 2001-01-18 Volkswagen Ag Verfahren zur Zustandserfassung eines Katalysatorsystems
JP2001098981A (ja) * 1999-09-30 2001-04-10 Toyota Motor Corp 内燃機関の触媒劣化判定装置
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
US6993899B2 (en) * 2001-06-20 2006-02-07 Ford Global Technologies, Llc System and method for controlling catalyst storage capacity
JP4042376B2 (ja) * 2001-10-11 2008-02-06 トヨタ自動車株式会社 内燃機関の触媒劣化検出装置
US6922985B2 (en) * 2003-01-21 2005-08-02 Daimlerchrysler Corporation Exhaust catalyst monitoring arrangement
JP4228900B2 (ja) * 2003-12-05 2009-02-25 トヨタ自動車株式会社 内燃機関の空燃比制御装置
FR2883329B1 (fr) * 2005-03-18 2007-05-11 Renault Sas Dispositif de surveillance d'un filtre a particules equipant la ligne d'echappement d'un moteur a combustion interne.
JP4254819B2 (ja) * 2006-07-25 2009-04-15 トヨタ自動車株式会社 内燃機関の制御装置
JP4221026B2 (ja) * 2006-12-25 2009-02-12 三菱電機株式会社 内燃機関の空燃比制御装置
JP4780180B2 (ja) * 2008-11-26 2011-09-28 トヨタ自動車株式会社 車両の充電システム
JP2014092097A (ja) * 2012-11-05 2014-05-19 Toyota Motor Corp 内燃機関の始動制御装置
US9441566B2 (en) * 2013-03-29 2016-09-13 Honda Motor Co., Ltd. Exhaust emission purification control device for engine
JP6107586B2 (ja) 2013-10-02 2017-04-05 トヨタ自動車株式会社 内燃機関の制御装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0718368B2 (ja) * 1990-04-02 1995-03-06 トヨタ自動車株式会社 内燃機関の触媒劣化検出装置
JP2503829B2 (ja) * 1991-04-23 1996-06-05 トヨタ自動車株式会社 内燃機関の空燃比制御装置
JPH0598947A (ja) * 1991-10-11 1993-04-20 Toyota Motor Corp 内燃機関の触媒劣化判別装置
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
JP2754433B2 (ja) * 1992-03-10 1998-05-20 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
JP2812023B2 (ja) * 1991-11-12 1998-10-15 トヨタ自動車株式会社 触媒劣化度検出装置
US5337555A (en) * 1991-12-13 1994-08-16 Mazda Motor Corporation Failure detection system for air-fuel ratio control system
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
JPH05263686A (ja) * 1992-03-23 1993-10-12 Toyota Motor Corp 内燃機関の触媒劣化判別装置
JP2626433B2 (ja) * 1992-12-09 1997-07-02 トヨタ自動車株式会社 触媒劣化検出装置
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
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
GB9315918D0 (en) * 1993-07-31 1993-09-15 Lucas Ind Plc Method of and apparatus for monitoring operation of a catalyst
US5386693A (en) * 1993-09-27 1995-02-07 Ford Motor Company Engine air/fuel control system with catalytic converter monitoring
US5351484A (en) * 1993-12-16 1994-10-04 Ford Motor Company Light-off catalyst monitor
JP3438298B2 (ja) * 1994-03-25 2003-08-18 マツダ株式会社 空燃比センサの故障検出装置
JP3248359B2 (ja) * 1994-07-30 2002-01-21 スズキ株式会社 内燃機関の触媒劣化検出装置

Also Published As

Publication number Publication date
DE69612326T2 (de) 2001-08-23
US5724809A (en) 1998-03-10
EP0748927B1 (de) 2001-04-04
EP0748927A1 (de) 1996-12-18

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