DE3567698D1 - Apparatus for discriminating operativeness/inoperativeness of an air-fuel ratio sensor - Google Patents

Apparatus for discriminating operativeness/inoperativeness of an air-fuel ratio sensor

Info

Publication number
DE3567698D1
DE3567698D1 DE8585114215T DE3567698T DE3567698D1 DE 3567698 D1 DE3567698 D1 DE 3567698D1 DE 8585114215 T DE8585114215 T DE 8585114215T DE 3567698 T DE3567698 T DE 3567698T DE 3567698 D1 DE3567698 D1 DE 3567698D1
Authority
DE
Germany
Prior art keywords
inoperativeness
operativeness
discriminating
air
fuel ratio
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
Application number
DE8585114215T
Other languages
English (en)
Inventor
Mitsunori Takao
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
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Application granted granted Critical
Publication of DE3567698D1 publication Critical patent/DE3567698D1/de
Expired 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
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • 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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time of the sensor
DE8585114215T 1984-11-30 1985-11-07 Apparatus for discriminating operativeness/inoperativeness of an air-fuel ratio sensor Expired DE3567698D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59254431A JPH0697002B2 (ja) 1984-11-30 1984-11-30 空燃比センサの良否判定装置

Publications (1)

Publication Number Publication Date
DE3567698D1 true DE3567698D1 (en) 1989-02-23

Family

ID=17264888

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585114215T Expired DE3567698D1 (en) 1984-11-30 1985-11-07 Apparatus for discriminating operativeness/inoperativeness of an air-fuel ratio sensor

Country Status (4)

Country Link
US (1) US4677955A (de)
EP (1) EP0184020B1 (de)
JP (1) JPH0697002B2 (de)
DE (1) DE3567698D1 (de)

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US4819601A (en) * 1987-04-15 1989-04-11 Toyota Jidosha Kabushiki Kaisha Diagnostic system of an air-fuel ratio control device
JPH0730728B2 (ja) * 1987-05-30 1995-04-10 マツダ株式会社 エンジンのアイドル回転数制御装置
JPS648334A (en) * 1987-06-30 1989-01-12 Mazda Motor Air-fuel ratio controller of engine
US5249119A (en) * 1990-05-02 1993-09-28 Idemitsu Kosan Company Limited Apparatus for and method of detecting a malfunction of a controller
KR940004344B1 (ko) * 1990-07-10 1994-05-23 미쯔비시지도오샤고오교오 가부시기가이샤 공연비 제어장치
AU662131B2 (en) * 1991-03-28 1995-08-24 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Control device for internal combustion engine
DE4139561A1 (de) * 1991-11-30 1993-06-03 Bosch Gmbh Robert Verfahren und vorrichtung zum ueberwachen des alterungszustandes einer sauerstoffsonde
DE4203502A1 (de) * 1992-02-07 1993-08-12 Bosch Gmbh Robert Verfahren und vorrichtung zum beurteilen der funktionsfaehigkeit einer lambdaregelung
US5305727A (en) * 1992-06-01 1994-04-26 Ford Motor Company Oxygen sensor monitoring
JP3498817B2 (ja) * 1995-06-14 2004-02-23 株式会社デンソー 内燃機関の排気系故障診断装置
JP3156604B2 (ja) * 1996-02-28 2001-04-16 トヨタ自動車株式会社 内燃機関の空燃比制御装置
US6860100B1 (en) 2000-03-17 2005-03-01 Ford Global Technologies, Llc Degradation detection method for an engine having a NOx sensor
US6499293B1 (en) * 2000-03-17 2002-12-31 Ford Global Technologies, Inc. Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine
US6360530B1 (en) 2000-03-17 2002-03-26 Ford Global Technologies, Inc. Method and apparatus for measuring lean-burn engine emissions
US6691507B1 (en) 2000-10-16 2004-02-17 Ford Global Technologies, Llc Closed-loop temperature control for an emission control device
US6539706B2 (en) 2001-06-19 2003-04-01 Ford Global Technologies, Inc. Method and system for preconditioning an emission control device for operation about stoichiometry
US6604504B2 (en) 2001-06-19 2003-08-12 Ford Global Technologies, Llc Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine
US6502387B1 (en) 2001-06-19 2003-01-07 Ford Global Technologies, Inc. Method and system for controlling storage and release of exhaust gas constituents in an emission control device
US6487853B1 (en) 2001-06-19 2002-12-03 Ford Global Technologies. Inc. Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor
US6650991B2 (en) * 2001-06-19 2003-11-18 Ford Global Technologies, Llc Closed-loop method and system for purging a vehicle emission control
US6546718B2 (en) 2001-06-19 2003-04-15 Ford Global Technologies, Inc. Method and system for reducing vehicle emissions using a sensor downstream of an emission control device
US6691020B2 (en) 2001-06-19 2004-02-10 Ford Global Technologies, Llc Method and system for optimizing purge of exhaust gas constituent stored in an emission control device
US6453666B1 (en) 2001-06-19 2002-09-24 Ford Global Technologies, Inc. Method and system for reducing vehicle tailpipe emissions when operating lean
US6615577B2 (en) 2001-06-19 2003-09-09 Ford Global Technologies, Llc Method and system for controlling a regeneration cycle of an emission control device
US6553754B2 (en) 2001-06-19 2003-04-29 Ford Global Technologies, Inc. Method and system for controlling an emission control device based on depletion of device storage capacity
US6467259B1 (en) 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine
US6490860B1 (en) 2001-06-19 2002-12-10 Ford Global Technologies, Inc. Open-loop method and system for controlling the storage and release cycles of an emission control device
US6694244B2 (en) 2001-06-19 2004-02-17 Ford Global Technologies, Llc Method for quantifying oxygen stored in a vehicle emission control device
US6463733B1 (en) 2001-06-19 2002-10-15 Ford Global Technologies, Inc. Method and system for optimizing open-loop fill and purge times for an emission control device
DE10223385B4 (de) * 2002-05-25 2017-01-05 Volkswagen Ag Verfahren und Vorrichtung zur Steuerung eines Sensors
US6860144B2 (en) * 2003-02-18 2005-03-01 Daimlerchrysler Corporation Oxygen sensor monitoring arrangement
JP6782931B2 (ja) 2017-09-27 2020-11-11 日立造船株式会社 渦電流探傷装置
CN109916057B (zh) * 2017-12-07 2021-03-26 杭州三花研究院有限公司 一种空调系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2301354C3 (de) * 1973-01-12 1981-03-12 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum Regeln des Kraftstoff-Luftverhältnisses bei Brennkraftmaschinen
US3938479A (en) * 1974-09-30 1976-02-17 The Bendix Corporation Exhaust gas sensor operating temperature detection system
JPS5297029A (en) * 1976-02-12 1977-08-15 Nissan Motor Co Ltd Air fuel ratio controller
JPS52135925A (en) * 1976-05-10 1977-11-14 Nissan Motor Co Ltd Air fuel ratio control equipment
JPS5319887A (en) * 1976-08-08 1978-02-23 Nippon Soken Deterioration detecting apparatus for oxygen concentration detector
JPS5848750A (ja) * 1981-09-16 1983-03-22 Toyota Motor Corp 内燃機関の空燃比制御装置
JPS58144649A (ja) * 1982-01-29 1983-08-29 Nissan Motor Co Ltd 空燃比制御装置
US4512313A (en) * 1982-06-04 1985-04-23 Mazda Motor Corporation Engine control system having exhaust gas sensor
JPS5915651A (ja) * 1982-07-15 1984-01-26 Hitachi Ltd 空燃比制御装置
JPS5934439A (ja) * 1982-08-19 1984-02-24 Honda Motor Co Ltd 空燃比フイ−ドバツク制御方法

Also Published As

Publication number Publication date
EP0184020B1 (de) 1989-01-18
JPH0697002B2 (ja) 1994-11-30
EP0184020A2 (de) 1986-06-11
EP0184020A3 (en) 1986-12-30
JPS61132747A (ja) 1986-06-20
US4677955A (en) 1987-07-07

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition