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FR2852395B1 - METHOD FOR DIAGNOSING A NOX DETECTOR - Google Patents

METHOD FOR DIAGNOSING A NOX DETECTOR

Info

Publication number
FR2852395B1
FR2852395B1 FR0402531A FR0402531A FR2852395B1 FR 2852395 B1 FR2852395 B1 FR 2852395B1 FR 0402531 A FR0402531 A FR 0402531A FR 0402531 A FR0402531 A FR 0402531A FR 2852395 B1 FR2852395 B1 FR 2852395B1
Authority
FR
France
Prior art keywords
diagnosing
nox detector
nox
detector
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
FR0402531A
Other languages
French (fr)
Other versions
FR2852395A1 (en
Inventor
Eberhard Schnaibel
Klaus Winkler
Christoph Woll
Gunther Kegel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2852395A1 publication Critical patent/FR2852395A1/en
Application granted granted Critical
Publication of FR2852395B1 publication Critical patent/FR2852395B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4073—Composition or fabrication of the solid electrolyte
    • 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
    • F02D41/146—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 NOx content or concentration
    • F02D41/1463—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 NOx content or concentration of the exhaust gases downstream of exhaust gas treatment apparatus
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/4175—Calibrating or checking the analyser
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
FR0402531A 2003-03-13 2004-03-11 METHOD FOR DIAGNOSING A NOX DETECTOR Expired - Fee Related FR2852395B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10310954A DE10310954A1 (en) 2003-03-13 2003-03-13 Diagnostic procedure for a NOx sensor

Publications (2)

Publication Number Publication Date
FR2852395A1 FR2852395A1 (en) 2004-09-17
FR2852395B1 true FR2852395B1 (en) 2006-12-29

Family

ID=32892121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0402531A Expired - Fee Related FR2852395B1 (en) 2003-03-13 2004-03-11 METHOD FOR DIAGNOSING A NOX DETECTOR

Country Status (4)

Country Link
JP (1) JP4589016B2 (en)
DE (1) DE10310954A1 (en)
FR (1) FR2852395B1 (en)
IT (1) ITMI20040430A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006487B4 (en) * 2006-09-27 2018-11-08 Robert Bosch Gmbh Method for diagnosing an exhaust gas sensor arranged in an exhaust region of an internal combustion engine and device for carrying out the method
FR2906312B1 (en) 2006-09-27 2016-04-15 Bosch Gmbh Robert METHOD FOR DIAGNOSING AN EXHAUST GAS SENSOR EQUIPPED WITH AN INTERNAL COMBUSTION ENGINE AND DEVICE FOR CARRYING OUT SAID METHOD
JP4537417B2 (en) * 2007-03-06 2010-09-01 トヨタ自動車株式会社 NOx sensor abnormality diagnosis device
JP2009281952A (en) * 2008-05-26 2009-12-03 Nissan Diesel Motor Co Ltd Device for determining abnormal condition of nox sensor
WO2010134167A1 (en) * 2009-05-19 2010-11-25 トヨタ自動車株式会社 Abnormality diagnostic apparatus for nox sensor
SE535748C2 (en) * 2010-04-08 2012-12-04 Scania Cv Ab Apparatus and method for detecting a state of a NOx sensor of a motor vehicle
JP5789925B2 (en) * 2010-07-08 2015-10-07 いすゞ自動車株式会社 NOx sensor diagnostic device and SCR system
US9097192B2 (en) * 2011-03-15 2015-08-04 Delphi Technologies, Inc. Method and apparatus for identifying gas sensor faults
US8567175B2 (en) * 2011-08-22 2013-10-29 General Electric Company Emissions prediction system for power generation system
EP2836688B1 (en) * 2012-04-10 2016-08-17 Volvo Lastvagnar AB A self-diagnosing method for diagnosing a scr system
NL2015086B1 (en) * 2015-07-03 2017-01-30 Daf Trucks Nv Method, apparatus, and system for diagnosing at least one NOx-sensor of a diesel engine system.
US10329986B2 (en) * 2017-07-18 2019-06-25 Gm Global Technology Operations Llc. Model-based monitoring for selective catalytic reduction device in aftertreatment assembly

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19945374A1 (en) * 1999-09-22 2001-03-29 Volkswagen Ag Method for monitoring the function of a NO¶x¶ sensor arranged in an exhaust gas duct of an internal combustion engine
DE10003228A1 (en) * 2000-01-26 2001-09-06 Volkswagen Ag Measurement of exhaust nitrogen oxide downstream of storage catalyst, includes stage in which minimum value is found, forming sensor zero calibration signal
DE10032571A1 (en) * 2000-07-05 2002-03-28 Volkswagen Ag Catalyst system monitoring method for internal combustion engine of vehicle, involves determining catalyst state code value based on amount of NOx present in exhaust gas corresponding to rich and lean air fuel ratio
DE10049685A1 (en) * 2000-10-07 2002-04-11 Volkswagen Ag Process for single diagnosis of a nitrogen oxides sensor arranged in the exhaust gas line of an internal combustion engine comprises using a lambda signal characterizing the lambda value of the exhaust gas
DE10062289A1 (en) * 2000-12-14 2002-07-04 Siemens Ag Method for diagnosing a NOx sensor in the exhaust tract of an internal combustion engine
US6453663B1 (en) * 2001-08-16 2002-09-24 Ford Global Technologies, Inc NOx sensor monitoring
JP2003120399A (en) * 2001-10-09 2003-04-23 Toyota Motor Corp APPARATUS FOR DETECTING ABNORMALITY OF NOx SENSOR
JP2004212145A (en) * 2002-12-27 2004-07-29 Riken Corp Diagnostic device for gas sensor
JP4273306B2 (en) * 2003-03-05 2009-06-03 三菱ふそうトラック・バス株式会社 NOx sensor abnormality determination device

Also Published As

Publication number Publication date
ITMI20040430A1 (en) 2004-06-05
JP4589016B2 (en) 2010-12-01
JP2004279418A (en) 2004-10-07
FR2852395A1 (en) 2004-09-17
DE10310954A1 (en) 2004-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20151130