FR2840954A1 - Systeme de detection d'anomalie pour un capteur d'oxygene et procede de detection d'anomalie - Google Patents

Systeme de detection d'anomalie pour un capteur d'oxygene et procede de detection d'anomalie Download PDF

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Publication number
FR2840954A1
FR2840954A1 FR0307281A FR0307281A FR2840954A1 FR 2840954 A1 FR2840954 A1 FR 2840954A1 FR 0307281 A FR0307281 A FR 0307281A FR 0307281 A FR0307281 A FR 0307281A FR 2840954 A1 FR2840954 A1 FR 2840954A1
Authority
FR
France
Prior art keywords
oxygen
air
catalyst
fuel ratio
rich
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.)
Withdrawn
Application number
FR0307281A
Other languages
English (en)
French (fr)
Inventor
Kazutaka Hattori
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
Publication of FR2840954A1 publication Critical patent/FR2840954A1/fr
Withdrawn legal-status Critical Current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
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/0295—Control according to the amount of oxygen that is stored on the exhaust gas treating apparatus
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/023—Temperature of lubricating oil or working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0814—Oxygen storage amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0816—Oxygen storage capacity
    • 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
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
FR0307281A 2002-06-17 2003-06-17 Systeme de detection d'anomalie pour un capteur d'oxygene et procede de detection d'anomalie Withdrawn FR2840954A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002175274A JP2004019542A (ja) 2002-06-17 2002-06-17 酸素センサの異常検出装置

Publications (1)

Publication Number Publication Date
FR2840954A1 true FR2840954A1 (fr) 2003-12-19

Family

ID=29707027

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0307281A Withdrawn FR2840954A1 (fr) 2002-06-17 2003-06-17 Systeme de detection d'anomalie pour un capteur d'oxygene et procede de detection d'anomalie

Country Status (4)

Country Link
US (1) US20040226282A1 (de)
JP (1) JP2004019542A (de)
DE (1) DE10326736A1 (de)
FR (1) FR2840954A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006257944A (ja) * 2005-03-16 2006-09-28 Fujitsu Ten Ltd 内燃機関の異常検出装置
JP4940903B2 (ja) * 2005-11-18 2012-05-30 トヨタ自動車株式会社 排気浄化システム
JP4844257B2 (ja) * 2006-06-27 2011-12-28 トヨタ自動車株式会社 触媒劣化検出装置
JP4561702B2 (ja) * 2006-07-06 2010-10-13 トヨタ自動車株式会社 排気センサの異常診断装置
US7444235B2 (en) * 2007-02-06 2008-10-28 Gm Global Technology Operations, Inc. Post catalyst oxygen sensor diagnostic
JP4548443B2 (ja) * 2007-04-27 2010-09-22 トヨタ自動車株式会社 内燃機関の酸素センサ故障診断装置
JP5024405B2 (ja) * 2010-03-09 2012-09-12 トヨタ自動車株式会社 触媒劣化検出装置
JP6090092B2 (ja) * 2013-10-01 2017-03-08 トヨタ自動車株式会社 空燃比センサの異常診断装置
EP3054135B1 (de) 2013-10-01 2019-03-06 Toyota Jidosha Kabushiki Kaisha Anomaliendiagnosesystem für einen luft-kraftstoff-verhältnis-sensor
JP2015090072A (ja) * 2013-11-04 2015-05-11 株式会社デンソー 排出ガスセンサの異常診断装置
JP6065888B2 (ja) * 2014-07-29 2017-01-25 トヨタ自動車株式会社 空燃比センサの異常診断装置
JP6222037B2 (ja) * 2014-10-23 2017-11-01 トヨタ自動車株式会社 空燃比センサの異常診断装置
KR101822562B1 (ko) * 2015-03-31 2018-01-29 도요타지도샤가부시키가이샤 내연 기관의 배기 정화 장치
EP3551861A4 (de) * 2016-12-09 2020-11-04 Cummins Inc. Systeme und verfahren für katalysatorsensordiagnostik
JP7103176B2 (ja) 2018-11-07 2022-07-20 トヨタ自動車株式会社 ガスセンサの故障検出装置、ガスセンサの故障検出方法
JP2021116730A (ja) * 2020-01-24 2021-08-10 トヨタ自動車株式会社 下流側空燃比検出装置の異常診断装置
JP7444081B2 (ja) * 2021-01-08 2024-03-06 トヨタ自動車株式会社 内燃機関の制御装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05296088A (ja) * 1992-04-16 1993-11-09 Nippondenso Co Ltd 内燃機関の異常検出装置
JP2858288B2 (ja) * 1993-09-02 1999-02-17 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における自己診断装置
IT1273044B (it) * 1994-07-19 1997-07-01 Weber Srl Sistema elettronico di controllo titolo della miscela aria benzina alimentata ad un motore a combustione interna
IT1285311B1 (it) * 1996-03-12 1998-06-03 Magneti Marelli Spa Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore
US5842340A (en) * 1997-02-26 1998-12-01 Motorola Inc. Method for controlling the level of oxygen stored by a catalyst within a catalytic converter
JP3542471B2 (ja) * 1997-09-10 2004-07-14 本田技研工業株式会社 内燃機関の酸素濃度センサの異常検出装置
DE60116158T2 (de) * 2000-02-23 2006-06-29 Nissan Motor Co. Ltd. Luft-Kraftstoff-Verhältnis-Steuerungssystem
US6662638B2 (en) * 2001-11-26 2003-12-16 Ford Global Technologies, Llc System and method for determining degradation of an exhaust gas sensor in an engine

Also Published As

Publication number Publication date
JP2004019542A (ja) 2004-01-22
US20040226282A1 (en) 2004-11-18
DE10326736A1 (de) 2004-01-08

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Effective date: 20060228