DE69813134T2 - Verfahren zur Überwachung der Funktionsfähigkeit und der Alterung einer linearen Sauerstoffsonde - Google Patents

Verfahren zur Überwachung der Funktionsfähigkeit und der Alterung einer linearen Sauerstoffsonde

Info

Publication number
DE69813134T2
DE69813134T2 DE1998613134 DE69813134T DE69813134T2 DE 69813134 T2 DE69813134 T2 DE 69813134T2 DE 1998613134 DE1998613134 DE 1998613134 DE 69813134 T DE69813134 T DE 69813134T DE 69813134 T2 DE69813134 T2 DE 69813134T2
Authority
DE
Germany
Prior art keywords
aging
functionality
monitoring
oxygen probe
linear oxygen
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
DE1998613134
Other languages
German (de)
English (en)
Other versions
DE69813134D1 (de
Inventor
Frederic Aimard
Thomas Lavillonniere
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of DE69813134D1 publication Critical patent/DE69813134D1/de
Application granted granted Critical
Publication of DE69813134T2 publication Critical patent/DE69813134T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • 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)
    • F02D41/148—Using a plurality of comparators
    • 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
    • F02D41/2474—Characteristics of 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
DE1998613134 1997-10-17 1998-10-09 Verfahren zur Überwachung der Funktionsfähigkeit und der Alterung einer linearen Sauerstoffsonde Expired - Lifetime DE69813134T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9713064A FR2769985B1 (fr) 1997-10-17 1997-10-17 Procede et systeme de surveillance du fonctionnement et du vieillissement d'un capteur a oxygene lineaire

Publications (2)

Publication Number Publication Date
DE69813134D1 DE69813134D1 (de) 2003-05-15
DE69813134T2 true DE69813134T2 (de) 2003-12-11

Family

ID=9512389

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998613134 Expired - Lifetime DE69813134T2 (de) 1997-10-17 1998-10-09 Verfahren zur Überwachung der Funktionsfähigkeit und der Alterung einer linearen Sauerstoffsonde

Country Status (3)

Country Link
EP (1) EP0909888B1 (fr)
DE (1) DE69813134T2 (fr)
FR (1) FR2769985B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4462142B2 (ja) * 2005-07-28 2010-05-12 株式会社デンソー 内燃機関用制御装置
DE102010041311A1 (de) * 2010-09-24 2012-03-29 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung der Funktion eines Abgassensors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2581828B2 (ja) * 1990-06-01 1997-02-12 株式会社日立製作所 内燃機関の空燃比制御方法及びその制御装置
JP2754501B2 (ja) * 1990-11-29 1998-05-20 本田技研工業株式会社 内燃エンジンの空燃比制御方法及びその空燃比制御に使用する排気濃度センサの劣化検出方法
DE4139561A1 (de) * 1991-11-30 1993-06-03 Bosch Gmbh Robert Verfahren und vorrichtung zum ueberwachen des alterungszustandes einer sauerstoffsonde
JPH08177575A (ja) * 1994-12-28 1996-07-09 Nippondenso Co Ltd 内燃機関の空燃比制御装置の自己診断装置
FR2740173B1 (fr) * 1995-10-18 1997-12-05 Renault Dispositif et procede de diagnostic de l'etat d'une sonde disposee en amont du pot catalytique

Also Published As

Publication number Publication date
DE69813134D1 (de) 2003-05-15
EP0909888A1 (fr) 1999-04-21
FR2769985B1 (fr) 1999-12-31
FR2769985A1 (fr) 1999-04-23
EP0909888B1 (fr) 2003-04-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: HAFT - KARAKATSANIS PATENTANWALTSKANZLEI, 80802 MU