DE69407685D1 - Verbesserte Überwachung einer Sauerstoffsonde für Auspuffgase - Google Patents

Verbesserte Überwachung einer Sauerstoffsonde für Auspuffgase

Info

Publication number
DE69407685D1
DE69407685D1 DE69407685T DE69407685T DE69407685D1 DE 69407685 D1 DE69407685 D1 DE 69407685D1 DE 69407685 T DE69407685 T DE 69407685T DE 69407685 T DE69407685 T DE 69407685T DE 69407685 D1 DE69407685 D1 DE 69407685D1
Authority
DE
Germany
Prior art keywords
exhaust gases
oxygen probe
improved monitoring
monitoring
improved
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
DE69407685T
Other languages
English (en)
Other versions
DE69407685T2 (de
Inventor
Thomas Scott Gee
Thomas Anthony Schubert
Paul F Smith
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 Motor Co
Original Assignee
Ford Motor Co
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 Motor Co filed Critical Ford Motor Co
Application granted granted Critical
Publication of DE69407685D1 publication Critical patent/DE69407685D1/de
Publication of DE69407685T2 publication Critical patent/DE69407685T2/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
    • F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
    • 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
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0082—Controlling each cylinder individually per groups or banks
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2454—Learning of the air-fuel ratio control
    • F02D41/2458—Learning of the air-fuel ratio control with an additional dither signal

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)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
DE69407685T 1993-03-15 1994-02-01 Verbesserte Überwachung einer Sauerstoffsonde für Auspuffgase Expired - Fee Related DE69407685T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/031,408 US5390650A (en) 1993-03-15 1993-03-15 Exhaust gas oxygen sensor monitoring

Publications (2)

Publication Number Publication Date
DE69407685D1 true DE69407685D1 (de) 1998-02-12
DE69407685T2 DE69407685T2 (de) 1998-04-16

Family

ID=21859310

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69407685T Expired - Fee Related DE69407685T2 (de) 1993-03-15 1994-02-01 Verbesserte Überwachung einer Sauerstoffsonde für Auspuffgase

Country Status (4)

Country Link
US (1) US5390650A (de)
EP (1) EP0637684B1 (de)
JP (1) JPH06273366A (de)
DE (1) DE69407685T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3577728B2 (ja) * 1993-12-03 2004-10-13 株式会社デンソー 内燃機関の空燃比制御装置
JPH07259612A (ja) * 1994-03-18 1995-10-09 Honda Motor Co Ltd 内燃エンジンの排気ガス濃度センサ異常検出装置
DE19706382C2 (de) * 1997-02-19 2003-03-06 Daimler Chrysler Ag Verfahren zur Prüfung auf korrekt angeschlossene Lambda-Sonden
DE19828929A1 (de) 1998-06-29 2000-01-05 Siemens Ag Verfahren zur Überprüfung des Dynamikverhaltens eines Meßaufnehmers im Abgastrakt einer Brennkraftmaschine
US6324835B1 (en) * 1999-10-18 2001-12-04 Ford Global Technologies, Inc. Engine air and fuel control
DE19951581B4 (de) * 1999-10-27 2012-04-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Gleichstellung wenigstens zweier Zylinderbänke einer Brennkraftmaschine
US6354077B1 (en) * 2000-01-20 2002-03-12 Ford Global Technologies, Inc. Method and system for controlling air/fuel level in two-bank exhaust system
US6553756B1 (en) 2001-02-16 2003-04-29 Ford Global Technologies, Inc. Method for selecting a cylinder group when changing an engine operational parameter
US6497228B1 (en) 2001-02-16 2002-12-24 Ford Global Technologies, Inc. Method for selecting a cylinder group when adjusting a frequency of air/fuel ratio oscillations
US6553982B1 (en) 2001-02-16 2003-04-29 Ford Global Technologies, Inc. Method for controlling the phase difference of air/fuel ratio oscillations in an engine
US6550466B1 (en) 2001-02-16 2003-04-22 Ford Global Technologies, Inc. Method for controlling the frequency of air/fuel ratio oscillations in an engine
DE102007045984A1 (de) * 2007-09-26 2009-04-02 Continental Automotive Gmbh Verfahren zur Ermittlung der dynamischen Eigenschaften eines Abgassensors einer Brennkraftmaschine
JP4858728B2 (ja) * 2009-09-11 2012-01-18 三菱自動車工業株式会社 内燃機関の制御装置
US8939010B2 (en) 2011-11-01 2015-01-27 GM Global Technology Operations LLC System and method for diagnosing faults in an oxygen sensor
DE102013214541B4 (de) * 2012-08-03 2016-01-21 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Verfahren zur diagnose eines defekts in einem sauerstoffsensor auf grundlage einer motordrehzahl
US9146177B2 (en) 2012-08-03 2015-09-29 GM Global Technology Operations LLC System and method for diagnosing a fault in an oxygen sensor based on engine speed
US9057338B2 (en) 2012-11-09 2015-06-16 GM Global Technology Operations LLC Exhaust gas oxygen sensor fault detection systems and methods using fuel vapor purge rate
US9453472B2 (en) 2013-11-08 2016-09-27 GM Global Technology Operations LLC System and method for diagnosing a fault in an oxygen sensor based on ambient temperature

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982547A (ja) * 1983-09-29 1984-05-12 Nissan Motor Co Ltd 空燃比制御装置
JPS60190631A (ja) * 1984-03-12 1985-09-28 Nissan Motor Co Ltd 空燃比制御装置
US4703735A (en) * 1984-05-25 1987-11-03 Mazda Motor Corporation Air-fuel ratio control system for multicylinder engine
DE3821357A1 (de) * 1988-06-24 1990-02-15 Bosch Gmbh Robert Verfahren und vorrichtung zur lambdaregelung mit mehreren sonden
DE3834711A1 (de) * 1988-10-12 1990-04-19 Bosch Gmbh Robert Verfahren und vorrichtung zur fehlererkennung und/oder fehlerbehandlung bei stereo-lambdaregelung
US5157919A (en) * 1991-07-22 1992-10-27 Ford Motor Company Catalytic converter efficiency monitoring
US5159810A (en) * 1991-08-26 1992-11-03 Ford Motor Company Catalytic converter monitoring using downstream oxygen sensor

Also Published As

Publication number Publication date
EP0637684A1 (de) 1995-02-08
US5390650A (en) 1995-02-21
JPH06273366A (ja) 1994-09-30
DE69407685T2 (de) 1998-04-16
EP0637684B1 (de) 1998-01-07

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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