GB2342597B - Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream - Google Patents

Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Info

Publication number
GB2342597B
GB2342597B GB9921660A GB9921660A GB2342597B GB 2342597 B GB2342597 B GB 2342597B GB 9921660 A GB9921660 A GB 9921660A GB 9921660 A GB9921660 A GB 9921660A GB 2342597 B GB2342597 B GB 2342597B
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
nox
monitoring
catalytic converter
connected downstream
sensor connected
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
GB9921660A
Other versions
GB2342597A (en )
GB9921660D0 (en )
Inventor
Joachim Berger
Rene Schnek
Andreas Blumenstock
Klaus Winkler
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
Grant date

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495Controlling the catalytic process
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/007Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/021Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/14Introducing closed-loop corrections
    • F02D41/1438Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146Introducing 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/14Introducing closed-loop corrections
    • F02D41/1438Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146Introducing 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
    • F02D41/1463Introducing 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/14Introducing closed-loop corrections
    • F02D41/1438Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493Details
    • F02D41/1495Detection of abnormalities in the air/fuel ratio feedback system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/03Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2200/00Input parameters for engine control
    • F02D2200/02Input parameters for engine control the parameters being related to the engine
    • F02D2200/08Exhaust gas treatment apparatus parameters
    • F02D2200/0806NOx storage amount, i.e. amount of NOx stored on NOx trap
    • 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
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems
    • Y02T10/47Exhaust feedback
GB9921660A 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream Expired - Fee Related GB2342597B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998143871 DE19843871B4 (en) 1998-09-25 1998-09-25 Diagnosis of a NOx storage catalytic converter with a downstream NOx sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0116045A GB2360955B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream
GB0116050A GB2360956B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Publications (3)

Publication Number Publication Date
GB9921660D0 GB9921660D0 (en) 1999-11-17
GB2342597A true GB2342597A (en) 2000-04-19
GB2342597B true GB2342597B (en) 2001-09-05

Family

ID=7882137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9921660A Expired - Fee Related GB2342597B (en) 1998-09-25 1999-09-15 Monitoring of an NOx-storage catalytic converter having an NOx-sensor connected downstream

Country Status (3)

Country Link
JP (1) JP4289736B2 (en)
DE (1) DE19843871B4 (en)
GB (1) GB2342597B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922981A1 (en) * 1999-05-19 2000-11-30 Bosch Gmbh Robert A method for monitoring the soundness of a NO¶x¶ storage catalyst
DE10023080B4 (en) * 2000-05-11 2009-10-22 Volkswagen Ag Method and device for monitoring a storage capacity of a NOx storage catalytic converter
DE10036453A1 (en) * 2000-07-26 2002-02-14 Bosch Gmbh Robert Operating a nitrogen oxide storage catalyst on vehicle IC engine comprises storing nitrogen oxides generated from the engine in first phase in storage catalyst
DE10039709A1 (en) * 2000-08-14 2002-03-07 Bosch Gmbh Robert A method and control apparatus for determining the condition of a nitrogen oxide (NOx) storage catalytic converter
US6698188B2 (en) 2000-12-08 2004-03-02 Toyota Jidosha Kabushiki Kaisha Emission control apparatus of internal combustion engine
JP3649130B2 (en) * 2001-01-22 2005-05-18 トヨタ自動車株式会社 Exhaust gas purification system for an internal combustion engine
DE10300555B4 (en) * 2002-01-10 2009-03-19 Toyota Jidosha Kabushiki Kaisha, Toyota-shi Verschlechterungsermittelungsvorrichtung for an internal combustion engine exhaust gas control apparatus and Verschlechterungsermittelungsverfahren
DE10226873B4 (en) * 2002-06-12 2012-05-31 Volkswagen Ag Method for controlling the operating mode selector of an internal combustion engine
DE10258876A1 (en) * 2002-12-06 2004-08-19 Volkswagen Ag Process and apparatus for diagnosis of an NOx storage catalytic converter when the vehicle
DE10305452B4 (en) * 2002-12-30 2013-04-18 Volkswagen Ag A method for diagnosing a catalyst in the exhaust stream of an internal combustion engine and device for carrying out the method
DE10302700B4 (en) * 2002-12-31 2013-01-17 Volkswagen Ag Process and apparatus for diagnosis of an NOx storage catalytic converter in the exhaust tract of an internal combustion engine
ES2298679T3 (en) * 2003-03-13 2008-05-16 Magneti Marelli Powertrain S.P.A. Method for estimating the degradation of the trapping capacity of a catalytic converter nox-trap type.
DE10312440B4 (en) * 2003-03-20 2006-04-06 Siemens Ag Exhaust gas purification method for lean combustion engines
DE10313216B4 (en) * 2003-03-25 2012-07-12 Robert Bosch Gmbh A method of operating a arranged in the exhaust region of an internal combustion engine, nitrogen oxide (NOx) storage catalytic converter
JP2005273653A (en) * 2004-02-27 2005-10-06 Nissan Motor Co Ltd Deterioration diagnosis device for filter
DE102004049577A1 (en) * 2004-10-12 2006-04-20 Robert Bosch Gmbh A method of operating an internal combustion engine, a NOx storage catalyst and an NOx sensor arranged in an exhaust area, and apparatus for carrying out the method
DE102005050517A1 (en) * 2005-10-21 2007-04-26 Umicore Ag & Co. Kg Method for operating a nitrogen oxide storage catalyst to a diesel engine
JP4737010B2 (en) * 2006-08-30 2011-07-27 トヨタ自動車株式会社 The catalyst deterioration diagnosis apparatus
JP4729518B2 (en) * 2007-03-07 2011-07-20 トヨタ自動車株式会社 Apparatus for diagnosing deterioration of the NOx catalyst
JP4349425B2 (en) 2007-03-19 2009-10-21 日産自動車株式会社 Diagnostic apparatus for the NOx catalyst
FR2942502A1 (en) * 2009-02-24 2010-08-27 Peugeot Citroen Automobiles Sa Nitrogen oxide controlling method for oil engine of motor vehicle, involves operating engine according to calibration so as to provoke reduction of nitrogen oxide production source, when engine is placed in specific environment
GB201210028D0 (en) * 2012-06-06 2012-07-18 Gm Global Tech Operations Inc Method of assessing the thermal ageing of a catalyst in an exhaust system of an internal combustion engine
KR101406495B1 (en) * 2012-12-17 2014-06-27 현대자동차주식회사 Lnt control method for vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437153A (en) * 1992-06-12 1995-08-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
JPH0988560A (en) * 1995-09-27 1997-03-31 Nissan Motor Co Ltd Diagnostic device for engine
GB2307311A (en) * 1995-11-20 1997-05-21 Daimler Benz Ag Method operating IC engine to control storage of NOx in storage catalyst
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
US5778666A (en) * 1996-04-26 1998-07-14 Ford Global Technologies, Inc. Method and apparatus for improving engine fuel economy
EP0928890A2 (en) * 1998-01-10 1999-07-14 Degussa Aktiengesellschaft Method for operating an NOx storage catalytic converter
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
EP0950801A1 (en) * 1998-04-14 1999-10-20 Degussa-Hüls Aktiengesellschaft Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3316066B2 (en) * 1993-12-22 2002-08-19 富士重工業株式会社 Trouble diagnosis device for an exhaust gas purifying device
DE19635977A1 (en) * 1996-09-05 1998-03-12 Bosch Gmbh Robert Sensor for monitoring an NOx catalyst

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437153A (en) * 1992-06-12 1995-08-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
JPH0988560A (en) * 1995-09-27 1997-03-31 Nissan Motor Co Ltd Diagnostic device for engine
GB2307311A (en) * 1995-11-20 1997-05-21 Daimler Benz Ag Method operating IC engine to control storage of NOx in storage catalyst
US5778666A (en) * 1996-04-26 1998-07-14 Ford Global Technologies, Inc. Method and apparatus for improving engine fuel economy
US5771685A (en) * 1996-10-16 1998-06-30 Ford Global Technologies, Inc. Method for monitoring the performance of a NOx trap
EP0928890A2 (en) * 1998-01-10 1999-07-14 Degussa Aktiengesellschaft Method for operating an NOx storage catalytic converter
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
EP0950801A1 (en) * 1998-04-14 1999-10-20 Degussa-Hüls Aktiengesellschaft Process for detecting the deterioration of a nitrogen oxide adsorbing catalyst

Also Published As

Publication number Publication date Type
JP2000104536A (en) 2000-04-11 application
DE19843871B4 (en) 2005-05-04 grant
GB2342597A (en) 2000-04-19 application
GB9921660D0 (en) 1999-11-17 grant
DE19843871A1 (en) 2001-08-02 application
JP4289736B2 (en) 2009-07-01 grant

Similar Documents

Publication Publication Date Title
DE29611788U1 (en) catalytic converter
KR0183499B1 (en) Aldehyde-telechelic polyisobutylenes catalytic method for preparing the same with high conversion and selectivity
GB2330309B (en) Ankle-foot orthosis
GB2314124B (en) Wave energy converter
GB2302619B (en) Boost converter
DE69901551T2 (en) Flexible programmable sigma-delta analog converter
JPH1189805K1 (en) Sphygmomanometer
GB9807703D0 (en) Dewaterig membrane structure
GB2341119B (en) Dialysis probe
GB9811208D0 (en) Reactor device
GB9814164D0 (en) Ballscrew
GB9904253D0 (en) Acoustic structural element
GB9622036D0 (en) A method of monitoring efficiency of a catalytic converter and a control system suitable for use in the method
GB9822104D0 (en) Patent application
GB9613814D0 (en) Supported polymerisation catalysts
GB9816607D0 (en) Turbine
GB9724573D0 (en) Movement monitoring system
GB9918932D0 (en) Saw
GB2318309B (en) Desulphurisation
GB9602037D0 (en) Desulphurisation
GB9826296D0 (en) Ultrasonic resonator
GB9919726D0 (en) Pipe connection assembly
GB9401613D0 (en) Catalysis
GB9722219D0 (en) Video monitoring
GB2318418B (en) Method for monitoring the performance of a NOx trap

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170915