DE69106247D1 - Verfahren zur An-Bord-Feststellung der Degradierung eines Kraftfahrzeugkatalysators. - Google Patents

Verfahren zur An-Bord-Feststellung der Degradierung eines Kraftfahrzeugkatalysators.

Info

Publication number
DE69106247D1
DE69106247D1 DE69106247T DE69106247T DE69106247D1 DE 69106247 D1 DE69106247 D1 DE 69106247D1 DE 69106247 T DE69106247 T DE 69106247T DE 69106247 T DE69106247 T DE 69106247T DE 69106247 D1 DE69106247 D1 DE 69106247D1
Authority
DE
Germany
Prior art keywords
degradation
board
determining
motor vehicle
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 - Fee Related
Application number
DE69106247T
Other languages
English (en)
Other versions
DE69106247T2 (de
Inventor
Douglas Ray Hamburg
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.)
Ford Werke GmbH
Original Assignee
Ford Werke GmbH
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 Ford Werke GmbH filed Critical Ford Werke GmbH
Application granted granted Critical
Publication of DE69106247D1 publication Critical patent/DE69106247D1/de
Publication of DE69106247T2 publication Critical patent/DE69106247T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/1441—Plural 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1408—Dithering techniques
    • 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
    • Y02T10/12—Improving ICE efficiencies
    • 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)
DE69106247T 1990-06-11 1991-05-24 Verfahren zur An-Bord-Feststellung der Degradierung eines Kraftfahrzeugkatalysators. Expired - Fee Related DE69106247T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/536,372 US5077970A (en) 1990-06-11 1990-06-11 Method of on-board detection of automotive catalyst degradation

Publications (2)

Publication Number Publication Date
DE69106247D1 true DE69106247D1 (de) 1995-02-09
DE69106247T2 DE69106247T2 (de) 1995-05-04

Family

ID=24138221

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69106247T Expired - Fee Related DE69106247T2 (de) 1990-06-11 1991-05-24 Verfahren zur An-Bord-Feststellung der Degradierung eines Kraftfahrzeugkatalysators.

Country Status (4)

Country Link
US (1) US5077970A (de)
EP (1) EP0466311B1 (de)
CA (1) CA2068053A1 (de)
DE (1) DE69106247T2 (de)

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JP2796413B2 (ja) * 1990-08-29 1998-09-10 株式会社日立製作所 内燃機関の空燃比制御方法及び装置
JP2807769B2 (ja) * 1990-08-30 1998-10-08 本田技研工業株式会社 内燃エンジンの制御装置の故障診断方法
JP2917173B2 (ja) * 1990-09-04 1999-07-12 株式会社ユニシアジェックス 内燃機関の空燃比制御装置
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JPH0726580B2 (ja) * 1990-11-20 1995-03-29 トヨタ自動車株式会社 内燃機関の触媒劣化判定装置
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JPH04339147A (ja) * 1991-05-13 1992-11-26 Honda Motor Co Ltd 内燃エンジンの空燃比制御装置
US5157919A (en) * 1991-07-22 1992-10-27 Ford Motor Company Catalytic converter efficiency monitoring
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US5622047A (en) * 1992-07-03 1997-04-22 Nippondenso Co., Ltd. Method and apparatus for detecting saturation gas amount absorbed by catalytic converter
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US5272872A (en) * 1992-11-25 1993-12-28 Ford Motor Company Method and apparatus of on-board catalytic converter efficiency monitoring
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US5492612A (en) * 1994-02-17 1996-02-20 General Motors Corporation Lean shift correction of potentiometric oxygen sensors
JP3496307B2 (ja) * 1994-02-18 2004-02-09 株式会社デンソー 触媒劣化検知法及び空燃比センサ
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SE505235C2 (sv) * 1995-06-07 1997-07-21 Volvo Ab Sätt och anordning för att bestämma syrebuffertkapaciteten i en katalytisk avgasrenare
US5970426A (en) * 1995-09-22 1999-10-19 Rosemount Analytical Inc. Emission monitoring system
GB2311863B (en) * 1996-04-03 1999-11-24 Gen Motors Corp Catalytic converter monitor
JP3729295B2 (ja) * 1996-08-29 2005-12-21 本田技研工業株式会社 内燃機関の空燃比制御装置
US5974786A (en) * 1997-01-21 1999-11-02 Ford Global Technologies, Inc. Adaptive time window to synchronize pre- and post-catalyst oxygen sensor switch counters
US5865026A (en) * 1997-01-21 1999-02-02 Ford Global Technologies, Inc. System and method for monitoring a catalytic converter using adaptable indicator threshold
US6393673B1 (en) 1997-07-31 2002-05-28 3M Innovative Properties Company Mechanical-fastening element
US5974788A (en) * 1997-08-29 1999-11-02 Ford Global Technologies, Inc. Method and apparatus for desulfating a nox trap
US5998210A (en) * 1997-10-01 1999-12-07 Ford Global Technologies, Inc. Method and apparatus for aging a catalyst
GB9722950D0 (en) 1997-10-30 1998-01-07 Lotus Car A method of monitoring efficiency of a catalytic converter and a control systemsuitable for use in the method
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US6434708B1 (en) * 1999-04-09 2002-08-13 Integrated Technology Express, Inc. Programmable timer & methods for scheduling time slices executed by a controller circuit
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KR100313009B1 (ko) * 1999-09-15 2001-11-03 류정열 촉매 변환기의 에이징 계산 방법
JP3625163B2 (ja) * 1999-11-08 2005-03-02 株式会社デンソー 排気浄化用触媒の劣化検出装置
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JP3603797B2 (ja) * 2000-02-17 2004-12-22 日産自動車株式会社 エンジンの排気浄化装置
US6453665B1 (en) * 2000-04-28 2002-09-24 Ford Global Technologies, Inc. Catalyst based adaptive fuel control
US7198952B2 (en) * 2001-07-18 2007-04-03 Toyota Jidosha Kabushiki Kaisha Catalyst deterioration detecting apparatus and method
US6803236B2 (en) * 2001-08-10 2004-10-12 Delphi Technologies, Inc. Diagnostic system for monitoring catalyst performance
US6532734B1 (en) * 2002-02-01 2003-03-18 Ford Global Technologies, Inc. On-board diagnostic catalyst monitoring system
DE10205817A1 (de) * 2002-02-13 2003-08-14 Bosch Gmbh Robert Verfahren und Vorrichtung zur Regelung des Kraftstoff-/Luftverhältnisses eines Verbrennungsprozesses
DE10239258A1 (de) * 2002-08-22 2004-03-04 Volkswagen Ag Verbrennungsmotor und Verfahren zum Betrieb eines Verbrennungsmotors mit einer Kraftstoffregelungsvorrichtung
US7197866B2 (en) * 2003-11-10 2007-04-03 Ford Global Technologies, Llc Control approach for use with dual mode oxygen sensor
US7536851B2 (en) * 2005-03-10 2009-05-26 Gm Global Technology Operations, Inc. Catalyst condition monitor based on differential area under the oxygen sensors curve algorithm
JP4449818B2 (ja) * 2005-05-16 2010-04-14 トヨタ自動車株式会社 触媒劣化判定装置
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US8265858B2 (en) * 2009-09-30 2012-09-11 GM Global Technology Operations LLC Delay calibration systems and methods
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
JP6318005B2 (ja) * 2014-05-28 2018-04-25 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
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Also Published As

Publication number Publication date
CA2068053A1 (en) 1991-12-12
EP0466311B1 (de) 1994-12-28
DE69106247T2 (de) 1995-05-04
US5077970A (en) 1992-01-07
EP0466311A1 (de) 1992-01-15

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8339 Ceased/non-payment of the annual fee