DE50108081D1 - METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE - Google Patents

METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE

Info

Publication number
DE50108081D1
DE50108081D1 DE50108081T DE50108081T DE50108081D1 DE 50108081 D1 DE50108081 D1 DE 50108081D1 DE 50108081 T DE50108081 T DE 50108081T DE 50108081 T DE50108081 T DE 50108081T DE 50108081 D1 DE50108081 D1 DE 50108081D1
Authority
DE
Germany
Prior art keywords
noxx
concentration
determining
exhaust gas
combustion engine
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
DE50108081T
Other languages
German (de)
Inventor
Hermann Hahn
Soeren Hinze
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
Priority to DE50108081T priority Critical patent/DE50108081D1/en
Application granted granted Critical
Publication of DE50108081D1 publication Critical patent/DE50108081D1/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
    • F02D41/1444—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
    • 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
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
DE50108081T 2000-01-26 2001-01-18 METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE Expired - Lifetime DE50108081D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50108081T DE50108081D1 (en) 2000-01-26 2001-01-18 METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2000103228 DE10003228A1 (en) 2000-01-26 2000-01-26 Measurement of exhaust nitrogen oxide downstream of storage catalyst, includes stage in which minimum value is found, forming sensor zero calibration signal
DE50108081T DE50108081D1 (en) 2000-01-26 2001-01-18 METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE
PCT/EP2001/000540 WO2001055565A2 (en) 2000-01-26 2001-01-18 METHOD AND DEVICE FOR DETECTING A NOx CONCENTRATION OF AN EXHAUST GAS STREAM PERTAINING TO A COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
DE50108081D1 true DE50108081D1 (en) 2005-12-22

Family

ID=7628738

Family Applications (2)

Application Number Title Priority Date Filing Date
DE2000103228 Withdrawn DE10003228A1 (en) 2000-01-26 2000-01-26 Measurement of exhaust nitrogen oxide downstream of storage catalyst, includes stage in which minimum value is found, forming sensor zero calibration signal
DE50108081T Expired - Lifetime DE50108081D1 (en) 2000-01-26 2001-01-18 METHOD AND DEVICE FOR DETERMINING NOXX CONCENTRATION OF AN EXHAUST GAS FLOW OF AN INTERNAL COMBUSTION ENGINE

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE2000103228 Withdrawn DE10003228A1 (en) 2000-01-26 2000-01-26 Measurement of exhaust nitrogen oxide downstream of storage catalyst, includes stage in which minimum value is found, forming sensor zero calibration signal

Country Status (4)

Country Link
EP (1) EP1255917B1 (en)
AU (1) AU2001237318A1 (en)
DE (2) DE10003228A1 (en)
WO (1) WO2001055565A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202869A1 (en) * 2002-01-24 2003-08-21 Volkswagen Ag Correction of output signals for nitrogen oxide concentration measurement from sensors located within exhaust system of IC engine comprises applying correction to oscillating output signal for predetermined interval following start-up
DE10223385B4 (en) * 2002-05-25 2017-01-05 Volkswagen Ag Method and device for controlling a sensor
DE10249610B4 (en) * 2002-10-18 2010-10-07 Volkswagen Ag Method and device for controlling a NOx storage catalytic converter
EP1434049B1 (en) * 2002-12-29 2017-02-22 Volkswagen Aktiengesellschaft Method of and device for monitoring the NOx signal of an NOx sensor
DE10310954A1 (en) * 2003-03-13 2004-09-23 Robert Bosch Gmbh Diagnostic procedure for a NOx sensor
DE10339062A1 (en) * 2003-04-16 2004-11-11 Volkswagen Ag Method for determining an offset value of a sensor signal and device for carrying out the method
FR2853934A1 (en) * 2003-04-16 2004-10-22 Volkswagen Ag Procedure for determining offset signal value from NOx detector in IC engine exhaust system, uses signal values taken during stoichiometric operating mode
DE10326932A1 (en) * 2003-06-16 2005-01-27 Audi Ag Process to monitor the condition of a nitric oxide sensor in an automotive exhaust system by comparison of a cold value with a known threshold value
DE102004022814B4 (en) * 2004-05-08 2010-06-10 Audi Ag Method for operating a lean-running internal combustion engine of a vehicle, in particular of a motor vehicle
FR2948979B1 (en) * 2009-08-07 2011-07-22 Peugeot Citroen Automobiles Sa METHOD OF DIAGNOSING AND CONTROLLING A NITROGEN OXIDE SENSOR
CN114166990B (en) * 2021-12-03 2023-11-14 国网湖南省电力有限公司 Based on NO x Denitrification ammonia injection uniformity detection method for concentration time domain feature analysis
DE102022202200B3 (en) * 2022-03-03 2023-02-02 Vitesco Technologies GmbH Method for calibrating an exhaust gas sensor of an internal combustion engine for a vehicle and internal combustion engine for a vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1077375B1 (en) * 1997-03-21 2012-06-20 Ngk Spark Plug Co., Ltd Method and apparatus for measuring NOx gas concentration
DE69815256T2 (en) * 1997-10-14 2004-05-06 NGK Spark Plug Co., Ltd., Nagoya Method and device for determining the operating state of a NOx occlusion catalyst
JP3684854B2 (en) * 1998-07-02 2005-08-17 日産自動車株式会社 Catalyst deterioration diagnosis device for internal combustion engine

Also Published As

Publication number Publication date
WO2001055565A3 (en) 2002-01-10
AU2001237318A1 (en) 2001-08-07
DE10003228A1 (en) 2001-09-06
WO2001055565A2 (en) 2001-08-02
EP1255917A2 (en) 2002-11-13
EP1255917B1 (en) 2005-11-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)