EP1247966A3 - Method for testing the switching time of O2-sensors - Google Patents

Method for testing the switching time of O2-sensors Download PDF

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Publication number
EP1247966A3
EP1247966A3 EP02003958A EP02003958A EP1247966A3 EP 1247966 A3 EP1247966 A3 EP 1247966A3 EP 02003958 A EP02003958 A EP 02003958A EP 02003958 A EP02003958 A EP 02003958A EP 1247966 A3 EP1247966 A3 EP 1247966A3
Authority
EP
European Patent Office
Prior art keywords
sensors
testing
switching time
fuel injection
fuel
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.)
Granted
Application number
EP02003958A
Other languages
German (de)
French (fr)
Other versions
EP1247966A2 (en
EP1247966B1 (en
Inventor
Armin Köhler
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP1247966A2 publication Critical patent/EP1247966A2/en
Publication of EP1247966A3 publication Critical patent/EP1247966A3/en
Application granted granted Critical
Publication of EP1247966B1 publication Critical patent/EP1247966B1/en
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
    • 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
    • F02D41/04—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

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)
  • Testing Of Engines (AREA)

Abstract

Verfahren zur Erkennung vertauscht angeschlossener O2-Sensoren, die im Abgasstrang einer Brennkraftmaschine hintereinander angeordnet und an eine Regeleinrichtung für die Kraftstoffeinspritzung angeschlossen sind, dadurch gekennzeichnet, daß die Kraftstoffeinspritzung während eines Prüfzeitraums abgeschaltet oder das Kraftstoff-Luft-Verhältnis verändert wird und die Reaktionszeiten bis zum Auftreten der dadurch bedingten Signaländerungen der O2-Sensoren gemessen und ausgewertet werden.

Figure 00000001
Method for detecting interchanged O 2 sensors, which are arranged one behind the other in the exhaust line of an internal combustion engine and are connected to a control device for fuel injection, characterized in that the fuel injection is switched off during a test period or the fuel-air ratio is changed and the reaction times up to the occurrence of the resulting signal changes of the O 2 sensors are measured and evaluated.
Figure 00000001
EP20020003958 2001-04-06 2002-02-22 Method for testing the switching time of O2-sensors Expired - Fee Related EP1247966B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117244 2001-04-06
DE2001117244 DE10117244A1 (en) 2001-04-06 2001-04-06 Procedure for detecting swapped connected O¶2¶ sensors

Publications (3)

Publication Number Publication Date
EP1247966A2 EP1247966A2 (en) 2002-10-09
EP1247966A3 true EP1247966A3 (en) 2004-12-22
EP1247966B1 EP1247966B1 (en) 2006-05-17

Family

ID=7680669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020003958 Expired - Fee Related EP1247966B1 (en) 2001-04-06 2002-02-22 Method for testing the switching time of O2-sensors

Country Status (2)

Country Link
EP (1) EP1247966B1 (en)
DE (2) DE10117244A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331334B4 (en) * 2003-07-10 2012-12-20 Volkswagen Ag Method for operating an internal combustion engine
DE10331331B4 (en) 2003-07-10 2012-03-01 Volkswagen Ag Method for operating an internal combustion engine
DE10331333B4 (en) * 2003-07-10 2016-01-14 Volkswagen Ag Method for operating an internal combustion engine
DE10339325A1 (en) 2003-08-25 2005-03-31 Volkswagen Ag Method and device for commutation diagnosis of lambda probes
EP1724458A1 (en) * 2005-05-19 2006-11-22 Delphi Technologies, Inc. Method and apparatus for diagnosing a measured value
DE102005035423B4 (en) * 2005-07-28 2010-12-02 Continental Automotive Gmbh Method and device for assigning a plurality of sensors of a sensor type to measurement objects of an internal combustion engine
JP4539554B2 (en) * 2005-12-26 2010-09-08 株式会社デンソー Exhaust gas purification device for internal combustion engine
DE102008004207A1 (en) * 2008-01-14 2009-07-16 Robert Bosch Gmbh Method and control unit for checking an exhaust aftertreatment system of an internal combustion engine
DE102012007159A1 (en) 2012-04-07 2012-10-18 Daimler Ag Exhaust system for internal combustion engine of vehicle, has predetermined mounting positions for multiple exhaust gas sensors and electronic control unit with electrical connection ports for connection of exhaust gas sensor
DE102016222009B4 (en) 2015-12-22 2021-09-30 Ford Global Technologies, Llc Monitoring of the aging condition of a catalytic converter
CN108603433B (en) * 2016-02-10 2020-07-07 斯堪尼亚商用车有限公司 Method and system for diagnosing an exhaust gas sensor
CN111042900A (en) * 2018-10-12 2020-04-21 罗伯特·博世有限公司 Method for detecting the installation position of a nitrogen oxide sensor, storage medium, electronic control unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691465A2 (en) * 1994-07-04 1996-01-10 Bayerische Motoren Werke Aktiengesellschaft Method to detect cross-connected lambda sensors
DE19734670C1 (en) * 1997-08-11 1999-05-27 Daimler Chrysler Ag Exchanging test for lambda sensors
US6092413A (en) * 1997-02-19 2000-07-25 Daimlerchrysler Ag Method for testing correctly connected lambda sensors
DE10026213A1 (en) * 2000-05-26 2001-11-29 Volkswagen Ag Configuring combustion engine lambda probes by detecting to which controller inputs lambda probes are connected, controller providing correct association of probes and cylinder banks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691465A2 (en) * 1994-07-04 1996-01-10 Bayerische Motoren Werke Aktiengesellschaft Method to detect cross-connected lambda sensors
US6092413A (en) * 1997-02-19 2000-07-25 Daimlerchrysler Ag Method for testing correctly connected lambda sensors
DE19734670C1 (en) * 1997-08-11 1999-05-27 Daimler Chrysler Ag Exchanging test for lambda sensors
DE10026213A1 (en) * 2000-05-26 2001-11-29 Volkswagen Ag Configuring combustion engine lambda probes by detecting to which controller inputs lambda probes are connected, controller providing correct association of probes and cylinder banks

Also Published As

Publication number Publication date
EP1247966A2 (en) 2002-10-09
EP1247966B1 (en) 2006-05-17
DE50206777D1 (en) 2006-06-22
DE10117244A1 (en) 2002-11-07

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