DE60335460D1 - Verfahren zur diagnose der verschlechterung eines gassensors und gerät zur diagnose einer verschlechterung eines gassensors - Google Patents

Verfahren zur diagnose der verschlechterung eines gassensors und gerät zur diagnose einer verschlechterung eines gassensors

Info

Publication number
DE60335460D1
DE60335460D1 DE60335460T DE60335460T DE60335460D1 DE 60335460 D1 DE60335460 D1 DE 60335460D1 DE 60335460 T DE60335460 T DE 60335460T DE 60335460 T DE60335460 T DE 60335460T DE 60335460 D1 DE60335460 D1 DE 60335460D1
Authority
DE
Germany
Prior art keywords
diagnosis
gas sensor
wearing
failure
sensor failure
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
DE60335460T
Other languages
English (en)
Inventor
Takashi Sasaki
Hiroyuki Abe
Tsuyoshi Eguchi
Yasushi Kojima
Takashi Saito
Akihiro Suzuki
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Application granted granted Critical
Publication of DE60335460D1 publication Critical patent/DE60335460D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/007Arrangements to check the analyser
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/005H2
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20Fuel cells in motive systems, e.g. vehicle, ship, plane
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40Application of hydrogen technology to transportation, e.g. using fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Fuel Cell (AREA)
DE60335460T 2002-05-13 2003-05-12 Verfahren zur diagnose der verschlechterung eines gassensors und gerät zur diagnose einer verschlechterung eines gassensors Expired - Lifetime DE60335460D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002137649 2002-05-13
JP2002374086 2002-12-25
JP2003070227A JP3836440B2 (ja) 2002-05-13 2003-03-14 ガスセンサの劣化診断方法
PCT/JP2003/005897 WO2003096000A1 (fr) 2002-05-13 2003-05-12 Methode de diagnostic de la deterioration d'un capteur de gaz et equipement pour le diagnostic de la deterioration de gaz

Publications (1)

Publication Number Publication Date
DE60335460D1 true DE60335460D1 (de) 2011-02-03

Family

ID=29424252

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60335460T Expired - Lifetime DE60335460D1 (de) 2002-05-13 2003-05-12 Verfahren zur diagnose der verschlechterung eines gassensors und gerät zur diagnose einer verschlechterung eines gassensors

Country Status (6)

Country Link
US (1) US7251981B2 (de)
EP (1) EP1505385B1 (de)
JP (1) JP3836440B2 (de)
CA (1) CA2485604C (de)
DE (1) DE60335460D1 (de)
WO (1) WO2003096000A1 (de)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003294674A (ja) 2002-04-04 2003-10-15 Honda Motor Co Ltd ガスセンサの取付構造
JP4636425B2 (ja) * 2004-04-02 2011-02-23 トヨタ自動車株式会社 燃料電池システム
JP2006153857A (ja) * 2004-10-26 2006-06-15 Nissan Motor Co Ltd 水素センサの劣化検知システム、劣化検知方法及び水素濃度測定手段の劣化検知システム
JP3950135B2 (ja) * 2004-11-26 2007-07-25 株式会社日立製作所 ガス検知システム
JP2006153598A (ja) 2004-11-26 2006-06-15 Honda Motor Co Ltd ガス検出装置およびガス検出素子の制御方法
JP5219232B2 (ja) * 2005-03-10 2013-06-26 理研計器株式会社 燃料電池を用いた給電装置
JP4919609B2 (ja) * 2005-03-11 2012-04-18 理研計器株式会社 燃料電池を用いた給電装置
JP4758145B2 (ja) * 2005-06-03 2011-08-24 シチズンホールディングス株式会社 接触燃焼式ガスセンサ
US7846595B2 (en) * 2006-02-14 2010-12-07 Ford Global Technologies, Llc System and method to operate a fuel cell in the exhaust of an internal combustion engine
CN100387976C (zh) * 2006-04-21 2008-05-14 原德林 甲烷传感器智能校验装置
US7937984B2 (en) * 2006-12-29 2011-05-10 Honeywell International Inc. Gas sensor test system and methods related thereto
JP4277925B2 (ja) * 2007-10-10 2009-06-10 トヨタ自動車株式会社 ガス検出システム、車両、およびガス検出システムの点検方法
JP4863960B2 (ja) * 2007-10-12 2012-01-25 日立オートモティブシステムズ株式会社 酸素センサの検査方法
JP4892511B2 (ja) * 2008-04-15 2012-03-07 本田技研工業株式会社 ガスセンサ
JP5303196B2 (ja) * 2008-06-10 2013-10-02 矢崎総業株式会社 ガス検出装置及び経年変化補正方法
JP2010019732A (ja) * 2008-07-11 2010-01-28 Honda Motor Co Ltd ガスセンサ
JP5042150B2 (ja) * 2008-07-11 2012-10-03 本田技研工業株式会社 ガスセンサ
JP5179997B2 (ja) * 2008-08-08 2013-04-10 矢崎総業株式会社 ガス検出装置
JP5247306B2 (ja) * 2008-08-26 2013-07-24 矢崎総業株式会社 ガス検出装置
JP5424665B2 (ja) * 2009-02-16 2014-02-26 理研計器株式会社 接触燃焼式ガス検出装置
JP2010237007A (ja) * 2009-03-31 2010-10-21 Honda Motor Co Ltd ガスセンサ
JP4853548B2 (ja) * 2009-05-29 2012-01-11 株式会社デンソー 排気センサ診断装置
BR112012008468A2 (pt) 2009-10-30 2020-09-15 Mine Safety Appliances Company sensor de gás combustível e método de operar um sensor de gás combustível
JP2011237407A (ja) 2010-04-15 2011-11-24 Ngk Spark Plug Co Ltd 可燃性ガス検出装置および可燃性ガス検出素子の制御方法
JPWO2011145492A1 (ja) * 2010-05-17 2013-07-22 本田技研工業株式会社 接触燃焼式ガスセンサ
JP2012163341A (ja) 2011-02-03 2012-08-30 Honda Motor Co Ltd 水素検出システム
JP5342602B2 (ja) 2011-05-20 2013-11-13 本田技研工業株式会社 ガスセンサ
US20130017465A1 (en) * 2011-07-11 2013-01-17 GM Global Technology Operations LLC Leakage diagnostic for a fuel cell system in idle-stop mode
US9784755B2 (en) * 2011-10-14 2017-10-10 Msa Technology, Llc Sensor interrogation
US9562873B2 (en) 2011-10-14 2017-02-07 Msa Technology, Llc Sensor interrogation
JP2014010011A (ja) * 2012-06-28 2014-01-20 Denso Corp 湿度センサ
ITMO20120222A1 (it) * 2012-09-20 2014-03-21 C R D Ct Ricerche Ducati Trent O S R L Sistema e metodo per il monitoraggio dell'inquinamento atmosferico
FR2999709B1 (fr) 2012-12-19 2018-11-30 Compagnie Generale Des Etablissements Michelin Detecteur de fuite d'hydrogene
FR2999811B1 (fr) 2012-12-19 2016-11-04 Michelin & Cie Systeme a pile a combustible equipe d'un detecteur de fuite d'hydrogene
JP5921474B2 (ja) * 2013-03-21 2016-05-24 東京瓦斯株式会社 センサ装置、そのセンサ制御プログラム、そのセンサ制御方法およびセンサ制御システム
DE102013008425B3 (de) * 2013-05-16 2014-05-22 Dräger Safety AG & Co. KGaA Verfahren zur Erkennung von Sensorvergiftungen und Teststation zur Durchführung des Verfahrens
US9835574B2 (en) 2014-07-02 2017-12-05 Stmicroelectronics S.R.L. Gas measurement device and measurement method thereof
AU2016291738A1 (en) * 2015-07-13 2018-02-01 Nuvera Fuel Cells, LLC Generation of oxygen depleted air by a fuel cell system
WO2017122357A1 (ja) * 2016-01-15 2017-07-20 三菱電機株式会社 劣化診断装置、劣化診断システム、列車、劣化診断方法及び劣化診断プログラム
JP6772467B2 (ja) * 2016-01-26 2020-10-21 スズキ株式会社 燃料電池システム
US10112486B2 (en) * 2016-09-21 2018-10-30 Hyundai Motor Company Apparatus for detecting gas leakage of a vehicle equipped with a fuel cell system
JP6790655B2 (ja) * 2016-09-23 2020-11-25 アイシン精機株式会社 燃料電池システム
US10234412B2 (en) 2016-11-04 2019-03-19 Msa Technology, Llc Identification of combustible gas species via pulsed operation of a combustible gas sensor
US10900922B2 (en) 2018-07-17 2021-01-26 Msa Technology, Llc Power reduction in combustible gas sensors
JP7091941B2 (ja) * 2018-08-27 2022-06-28 トヨタ自動車株式会社 燃料ガス供給制御装置およびその方法、ならびに燃料電池車の起動方法
US11112378B2 (en) 2019-06-11 2021-09-07 Msa Technology, Llc Interrogation of capillary-limited sensors
IT201900010647A1 (it) * 2019-07-02 2021-01-02 St Microelectronics Srl Procedimento di funzionamento di un dispositivo sensore di gas, e corrispondente dispositivo sensore di gas
US11703473B2 (en) 2019-12-11 2023-07-18 Msa Technology, Llc Operation of combustible gas sensor in a dynamic mode with a constant resistance setpoint
CN112229881A (zh) * 2020-09-22 2021-01-15 中煤科工集团重庆研究院有限公司 抑制载体催化甲烷检测元件信号突变的装置及方法
JP7165710B2 (ja) * 2020-10-30 2022-11-04 本田技研工業株式会社 燃料電池車両
DE102021105014A1 (de) 2021-03-02 2022-09-08 Dräger Safety AG & Co. KGaA Verfahren zur Auswertung von Daten wenigstens eines mobilen und eines stationären Gasmessgeräts sowie System zur Überwachung mindestens einer Gaskonzentration
DE102022106689A1 (de) * 2021-03-30 2022-10-06 Dräger Safety AG & Co. KGaA Gasdetektionsvorrichtung mit einem Detektor und einem Kompensator und Gasdetektionsverfahren
DE102022208287A1 (de) 2022-08-09 2023-05-11 Vitesco Technologies GmbH Verfahren zum Ermitteln eines Fehlers einer Gassensorvorrichtung und Gassensorvorrichtung
DE102022209399B3 (de) * 2022-09-09 2023-09-07 Vitesco Technologies GmbH Verfahren zur Diagnose eines Wasserstoffsensors, Wasserstoffsensor, Computerprogramm und computerlesbares Medium

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419888A (en) * 1979-06-14 1983-12-13 Kabushikikaisha Shibaura Denshi Seisakusho Humidity measuring method
JPS61239153A (ja) 1985-04-16 1986-10-24 Kazutoshi Nakao 気体検出センサの経時特性補正方法
JPH0652662B2 (ja) 1987-09-30 1994-07-06 株式会社日立製作所 燃料電池
JPH03202767A (ja) * 1989-06-15 1991-09-04 Honda Motor Co Ltd 内燃エンジンの排気ガス濃度検出器の劣化検出方法
JP2876544B2 (ja) * 1990-09-05 1999-03-31 本田技研工業株式会社 触媒温度センサ劣化検出装置
JP2797810B2 (ja) 1992-02-04 1998-09-17 ヤマハ株式会社 ディジタルオーディオ機器
JP3219855B2 (ja) * 1992-06-24 2001-10-15 株式会社リコー ガス測定方法及びガス測定装置
US5243954A (en) * 1992-12-18 1993-09-14 Dresser Industries, Inc. Oxygen sensor deterioration detection
JPH06223850A (ja) 1993-01-29 1994-08-12 Mitsubishi Heavy Ind Ltd 固体高分子電解質燃料電池の運転保護システム
JP3494508B2 (ja) 1995-06-26 2004-02-09 日本碍子株式会社 可燃性ガスセンサ、可燃性ガス濃度の測定方法及び触媒劣化検知方法
JPH1010069A (ja) 1996-06-20 1998-01-16 Hitachi Ltd 未燃物濃度測定装置及び触媒診断装置
JP3316789B2 (ja) 1996-08-02 2002-08-19 矢崎総業株式会社 接触燃焼式ガスセンサ及び接触燃焼式ガスセンサの製造方法
JPH10170463A (ja) 1996-12-12 1998-06-26 Tokyo Gas Co Ltd 半導体式センサを用いた可燃性ガス検知器の点検方法
US6673480B1 (en) * 1998-07-02 2004-01-06 Ballard Power Systems Inc. Sensor cell for an electrochemical fuel cell stack
JP4001723B2 (ja) * 2001-03-28 2007-10-31 本田技研工業株式会社 改質触媒装置の触媒性能回復方法
DE10164293A1 (de) * 2001-12-28 2003-07-10 Wagner Alarm Sicherung Verfahren und Vorrichtung zum Messen des Sauerstoffgehaltes
US20040005494A1 (en) * 2002-07-05 2004-01-08 Drake Javit A. Chemical sensing in fuel cell systems

Also Published As

Publication number Publication date
US7251981B2 (en) 2007-08-07
EP1505385A4 (de) 2007-11-28
JP2004251862A (ja) 2004-09-09
JP3836440B2 (ja) 2006-10-25
EP1505385A1 (de) 2005-02-09
CA2485604A1 (en) 2003-11-20
EP1505385B1 (de) 2010-12-22
CA2485604C (en) 2009-02-24
US20050155405A1 (en) 2005-07-21
WO2003096000A1 (fr) 2003-11-20

Similar Documents

Publication Publication Date Title
DE60335460D1 (de) Verfahren zur diagnose der verschlechterung eines gassensors und gerät zur diagnose einer verschlechterung eines gassensors
DE50310892D1 (de) Verfahren und Vorrichtung zur Überwachung eines Erfassungsbereiches
ATE365274T1 (de) Verfahren zur überwachung eines sensors
DE502004011733D1 (de) Verfahren und optisches system zur vermessung der topographie eines messobjekts
DE602005024639D1 (de) Verfahren und Gerät zur Diagnose des Ermüdungsversagens von Turboladern
DE602004005547D1 (de) Verfahren und System zur Überwachung eines Flüssigkeitsdurchflusses
DE60312256D1 (de) Überwachungssystem, Verfahren zur Fernsteuerung eines Sensors, und Fernsteuerung für die überwachungsvorrichtung
DE60335749D1 (de) Vorrichtung und Verfahren zum ausfallsicheren Entkuppeln eines Unterwasser-Bohrlochs
DE60306614T8 (de) Vorrichtung und Verfahren zur Überwachung der nahen Umgebung eines Fahrzeuges
DE602005018461D1 (de) Verfahren und vorrichtung zur untersuchung der anbringgenauigkeit einer komponente
DE60323270D1 (de) Verfahren und vorrichtung zur inspektion eines rohres
DE502005002111D1 (de) Verfahren und Vorrichtung zur Formerfassung eines zahntechnischen Objektes
DE602004002423D1 (de) Fehlerdiagnosesystem einer Vorrichtung zur Abgasdruckerhöhung
DE502006002842D1 (de) Verfahren und anordnung zur überwachung einer sensoranordnung
DE50204393D1 (de) Verfahren und vorrichtung zur betriebsüberwachung eines gleitlagers
DE50214305D1 (de) Verfahren zur überprüfung der funktionsfähigkeit eines drucksensors
DE50308550D1 (de) Sensor und verfahren zur überwachung wenigstens eines sensors
DE60303471D1 (de) Fehlererkennungseinrichtung und -verfahren für den Längsbeschleunigungssensor eines Fahrzeugs
DE602004004243D1 (de) Verfahren und Vorrichtung zur Messung der Wirksamkeit einer Sportbewegung
DE60333195D1 (de) Verfahren zur diagnose des myokardinfarktrisikos
DE502004010423D1 (de) Verfahren zur überwachung eines drehratensensors
DE50112075D1 (de) Verfahren und vorrichtung zur überwachung eines sensors
DE60300344D1 (de) Verfahren und Vorrichtung zur Überwachung der Zusammensetzung eines zweikomponentigen Atemgasgemisches
DE502004003259D1 (de) Verfahren zur Überwachung eines Kettenzuges und Kettenzug
DE60201809D1 (de) Verfahren und Vorrichtung zur Überwachung eines Abgassensors