EP1074718A3 - Method for testing plausibility of engine and probe parameters using a wide range lambda sensor - Google Patents

Method for testing plausibility of engine and probe parameters using a wide range lambda sensor Download PDF

Info

Publication number
EP1074718A3
EP1074718A3 EP00115537A EP00115537A EP1074718A3 EP 1074718 A3 EP1074718 A3 EP 1074718A3 EP 00115537 A EP00115537 A EP 00115537A EP 00115537 A EP00115537 A EP 00115537A EP 1074718 A3 EP1074718 A3 EP 1074718A3
Authority
EP
European Patent Office
Prior art keywords
engine
plausibility
testing
wide range
lambda sensor
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
EP00115537A
Other languages
German (de)
French (fr)
Other versions
EP1074718B1 (en
EP1074718A2 (en
Inventor
Christian Hess
Thorsten Rebohl
Hans-Georg Nitzke
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1074718A2 publication Critical patent/EP1074718A2/en
Publication of EP1074718A3 publication Critical patent/EP1074718A3/en
Application granted granted Critical
Publication of EP1074718B1 publication Critical patent/EP1074718B1/en
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
    • F02D41/14—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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The method involves detecting a measurement signal for the lambda probe (18, 20), determining a demand signal for the lambda probe using a model of the engine (12) and deriving a monitoring value from the ratio of measurement signal to demand signal for comparison with a defined threshold value
EP00115537A 1999-08-03 2000-07-19 Method for testing plausibility of engine and probe parameters using a wide range lambda sensor Expired - Lifetime EP1074718B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19936355A DE19936355A1 (en) 1999-08-03 1999-08-03 Procedure for the plausibility check of engine sizes and sensor sizes using a continuous lambda probe
DE19936355 1999-08-03

Publications (3)

Publication Number Publication Date
EP1074718A2 EP1074718A2 (en) 2001-02-07
EP1074718A3 true EP1074718A3 (en) 2001-09-26
EP1074718B1 EP1074718B1 (en) 2004-11-10

Family

ID=7916920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115537A Expired - Lifetime EP1074718B1 (en) 1999-08-03 2000-07-19 Method for testing plausibility of engine and probe parameters using a wide range lambda sensor

Country Status (3)

Country Link
EP (1) EP1074718B1 (en)
AT (1) ATE282144T1 (en)
DE (2) DE19936355A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029633A1 (en) * 2000-04-07 2001-10-11 Volkswagen Ag Multi-flow exhaust system of a multi-cylinder engine and method for controlling an air-fuel ratio
DE10111586A1 (en) 2001-03-10 2002-09-12 Volkswagen Ag Process for operating internal combustion engines
DE10128969C1 (en) * 2001-06-15 2002-12-12 Audi Ag Method for diagnosing guide probe fitted downstream from catalytic converter in system for controlling engine, involves detecting oxygen content in exhaust system for an internal combustion engine.
DE10250219A1 (en) * 2002-10-23 2004-05-06 Volkswagen Ag Regulator and method for regulating a NOx sensor arranged in an exhaust gas duct of an internal combustion engine
DE10307342B4 (en) * 2003-02-21 2005-08-11 Volkswagen Ag Device and method for model-based on-board diagnostics
JP4459566B2 (en) * 2003-07-10 2010-04-28 本田技研工業株式会社 Exhaust gas sensor deterioration diagnosis device
DE102005016075B4 (en) * 2005-04-08 2007-04-12 Audi Ag Method for diagnosing a lambda probe assigned to the exhaust gas catalytic converter of an internal combustion engine
DE102005034247A1 (en) 2005-07-22 2007-01-25 Robert Bosch Gmbh Monitoring of exhaust emission limits
JP4697201B2 (en) * 2007-07-19 2011-06-08 トヨタ自動車株式会社 Abnormality detection device for internal combustion engine
JP4816773B2 (en) * 2009-07-16 2011-11-16 株式会社デンソー Exhaust component concentration sensor response detection device
DE102009028367A1 (en) * 2009-08-10 2011-02-17 Robert Bosch Gmbh Method and device for dynamic diagnosis of an exhaust gas probe
DE102011088296A1 (en) 2011-12-12 2013-06-13 Robert Bosch Gmbh Method and device for monitoring the dynamics of gas sensors
DE102012201033A1 (en) 2012-01-25 2013-07-25 Robert Bosch Gmbh Method and control unit for determining a dead time of an exhaust gas sensor
DE102013201734A1 (en) * 2013-02-04 2014-08-07 Robert Bosch Gmbh Method for operating oxygen sensor arrangement in exhaust gas system of internal combustion engine, involves detecting values for diagnosis of active oxygen adjustment, where former value represents oxygen storage capacity of catalyst
FR3115597B1 (en) * 2020-10-23 2022-09-09 Vitesco Technologies Calculator for vehicle probe fouling diagnostics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5550762A (en) * 1993-12-20 1996-08-27 Doll; John A. Diagnostic system for electronic automotive system
US5676119A (en) * 1995-09-25 1997-10-14 Honda Giken Kogyo Kabushiki Kaisha Air-fuel ratio control system for internal combustion engines
US5781878A (en) * 1995-06-05 1998-07-14 Nippondenso Co., Ltd. Apparatus and method for diagnosing degradation or malfunction of oxygen sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612212B4 (en) * 1995-03-31 2005-12-08 Denso Corp., Kariya Diagnostic device for an air / fuel ratio sensor
DE19606652B4 (en) * 1996-02-23 2004-02-12 Robert Bosch Gmbh Method of setting the air-fuel ratio for an internal combustion engine with a downstream catalytic converter
DE19844994C2 (en) * 1998-09-30 2002-01-17 Siemens Ag Method for diagnosing a continuous lambda probe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5550762A (en) * 1993-12-20 1996-08-27 Doll; John A. Diagnostic system for electronic automotive system
US5781878A (en) * 1995-06-05 1998-07-14 Nippondenso Co., Ltd. Apparatus and method for diagnosing degradation or malfunction of oxygen sensor
US5676119A (en) * 1995-09-25 1997-10-14 Honda Giken Kogyo Kabushiki Kaisha Air-fuel ratio control system for internal combustion engines

Also Published As

Publication number Publication date
EP1074718B1 (en) 2004-11-10
ATE282144T1 (en) 2004-11-15
EP1074718A2 (en) 2001-02-07
DE19936355A1 (en) 2001-02-08
DE50008573D1 (en) 2004-12-16

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