EP1118756A3 - Method and apparatus for controlling the regeneration of an NOx-adsorption catalyst - Google Patents

Method and apparatus for controlling the regeneration of an NOx-adsorption catalyst Download PDF

Info

Publication number
EP1118756A3
EP1118756A3 EP01101084A EP01101084A EP1118756A3 EP 1118756 A3 EP1118756 A3 EP 1118756A3 EP 01101084 A EP01101084 A EP 01101084A EP 01101084 A EP01101084 A EP 01101084A EP 1118756 A3 EP1118756 A3 EP 1118756A3
Authority
EP
European Patent Office
Prior art keywords
pdat
hil
converter
regeneration
nox
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
EP01101084A
Other languages
German (de)
French (fr)
Other versions
EP1118756B1 (en
EP1118756A2 (en
Inventor
Jens Dr. Drückhammer
Frank Schulze
Axel Lang
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
Priority claimed from DE10008564A external-priority patent/DE10008564A1/en
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP1118756A2 publication Critical patent/EP1118756A2/en
Publication of EP1118756A3 publication Critical patent/EP1118756A3/en
Application granted granted Critical
Publication of EP1118756B1 publication Critical patent/EP1118756B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust 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
    • F01N3/0842—Nitrogen oxides
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing 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
    • F02D41/0275—Introducing 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
    • 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
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing 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
    • F02D41/0275—Introducing 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
    • F02D41/028—Desulfurisation of NOx traps or adsorbent
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/03—Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04—Sulfur or sulfur oxides

Abstract

An NO<HIL><PDAT>x </SB><PDAT>concentration in exhaust gas is measured downstream of an NO<HIL><PDAT>x </SB><PDAT>storage converter. For determining an operating state, particularly damage to the NO<HIL><PDAT>x </SB><PDAT>storage converter, when the NO<HIL><PDAT>x </SB><PDAT>storage converter switches from an absorption mode to a regeneration mode, the values of characteristic features of an NO<HIL><PDAT>x </SB><PDAT>desorption peak in the time curve of the NOx concentration are ascertained and compared to predetermined test patterns, with a comparison result being formed, from which a converter-state signal that characterizes the operating state of the NO<HIL><PDAT>x </SB><PDAT>converter is determined.</PTEXT>
EP01101084A 2000-01-19 2001-01-18 Method and apparatus for controlling the regeneration of an NOx-adsorption catalyst Expired - Lifetime EP1118756B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10001994 2000-01-19
DE10001994 2000-01-19
DE10008564 2000-02-24
DE10008564A DE10008564A1 (en) 2000-01-19 2000-02-24 Nitrogen oxide storage catalyst diagnosis process, involving reporting value of characteristics of desorption peak as storage catalyst changes mode

Publications (3)

Publication Number Publication Date
EP1118756A2 EP1118756A2 (en) 2001-07-25
EP1118756A3 true EP1118756A3 (en) 2003-07-09
EP1118756B1 EP1118756B1 (en) 2007-01-03

Family

ID=26003914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101084A Expired - Lifetime EP1118756B1 (en) 2000-01-19 2001-01-18 Method and apparatus for controlling the regeneration of an NOx-adsorption catalyst

Country Status (4)

Country Link
US (1) US6632764B2 (en)
EP (1) EP1118756B1 (en)
AT (1) ATE350569T1 (en)
DE (1) DE50111757D1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6820417B2 (en) 2001-11-29 2004-11-23 Analytical Engineering, Inc. Exhaust aftertreatment system and method for an internal combustion engine
EP1723112A1 (en) * 2004-03-11 2006-11-22 Theravance, Inc. Biphenyl compounds useful as muscarinic receptor antagonists
JP4589961B2 (en) * 2004-03-15 2010-12-01 ハネウェル・インターナショナル・インコーポレーテッド Apparatus and method for accumulating and releasing sulfur-containing aromatic compounds from an internal combustion engine fuel stream
US20090255875A1 (en) * 2008-04-11 2009-10-15 Unger Peter D Improvements in regeneration of sulfur sorbents
US7210286B2 (en) * 2004-12-20 2007-05-01 Detroit Diesel Corporation Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter
US7441403B2 (en) * 2004-12-20 2008-10-28 Detroit Diesel Corporation Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities
US7461504B2 (en) * 2004-12-21 2008-12-09 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter
US7076945B2 (en) 2004-12-22 2006-07-18 Detroit Diesel Corporation Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter
US20060130465A1 (en) * 2004-12-22 2006-06-22 Detroit Diesel Corporation Method and system for controlling exhaust gases emitted from an internal combustion engine
US7434388B2 (en) 2004-12-22 2008-10-14 Detroit Diesel Corporation Method and system for regeneration of a particulate filter
GB0603942D0 (en) * 2006-02-28 2006-04-05 Johnson Matthey Plc Exhaust system for a spark-ignited internal combustion engine
GB0716833D0 (en) * 2007-08-31 2007-10-10 Nunn Andrew D On board diagnostic system
DE102007046353B3 (en) * 2007-09-27 2009-04-16 Continental Automotive Gmbh Regeneration process for a storage catalytic converter
US7704383B2 (en) * 2007-10-16 2010-04-27 Honeywell Interational Inc. Portable fuel desulfurization unit
US20110185708A1 (en) * 2010-01-29 2011-08-04 Eaton Corporation Adaptive Desulfation Control Algorithm
US8701390B2 (en) * 2010-11-23 2014-04-22 International Engine Intellectual Property Company, Llc Adaptive control strategy
WO2012127624A1 (en) * 2011-03-22 2012-09-27 トヨタ自動車株式会社 System for determining deterioration of catalyst
FR3028557A3 (en) * 2014-11-13 2016-05-20 Renault Sa METHOD FOR CONTROLLING A MOTORIZATION DEVICE AND ASSOCIATED MOTORIZATION DEVICE
US10920645B2 (en) 2018-08-02 2021-02-16 Ford Global Technologies, Llc Systems and methods for on-board monitoring of a passive NOx adsorption catalyst

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07208151A (en) * 1994-01-27 1995-08-08 Toyota Motor Corp Exhaust emission control device of internal combustion engine
DE19511548A1 (en) * 1995-03-29 1996-06-13 Daimler Benz Ag Nitrous oxide reduction system in vehicle engine exhaust
DE19607151C1 (en) * 1996-02-26 1997-07-10 Siemens Ag Regeneration of nitrogen oxide storage catalyst
EP0814248A2 (en) * 1996-06-21 1997-12-29 Ngk Insulators, Ltd. Method of controlling an engine exhaust gas system and method of detecting deterioration of catalyst/adsorbing means
EP0872633A2 (en) * 1997-04-18 1998-10-21 Volkswagen Aktiengesellschaft Process for the reduction of nitrogen oxides in the exhaust gas of an internal combustion engine
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
WO1999049190A1 (en) * 1998-03-20 1999-09-30 Ab Volvo Method and arrangement for control of air-fuel ratio of combustion engine
WO2000000729A1 (en) * 1998-06-26 2000-01-06 Siemens Aktiengesellschaft METHOD FOR REGENERATING AN NOx STORAGE CATALYST FOR AN INTERNAL COMBUSTION ENGINE
EP1053777A1 (en) * 1999-05-19 2000-11-22 Robert Bosch Gmbh Process for controlling the catalytic activity of an NOx-storage catalyst

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US4973399A (en) * 1989-11-03 1990-11-27 Mobil Oil Corporation Catalytic cracking of hydrocarbons
JP3311051B2 (en) * 1992-12-16 2002-08-05 日本碍子株式会社 Exhaust gas purification method and apparatus
JP3440654B2 (en) * 1994-11-25 2003-08-25 トヨタ自動車株式会社 Exhaust gas purification device
DE19645202B4 (en) 1995-12-23 2006-05-11 Volkswagen Ag Method for monitoring the conversion rate of an exhaust gas catalytic converter for an internal combustion engine
DE19800665C1 (en) * 1998-01-10 1999-07-01 Degussa Method for operating a nitrogen oxide storage catalytic converter
DE19808382A1 (en) 1998-02-27 1999-09-02 Volkswagen Ag Control of a NOx absorber catalytic converter
FR2778205B1 (en) * 1998-04-29 2000-06-23 Inst Francais Du Petrole CONTROLLED HYDROCARBON INJECTION PROCESS INTO AN EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE
DE19828929A1 (en) * 1998-06-29 2000-01-05 Siemens Ag Method for checking the dynamic behavior of a sensor in the exhaust tract of an internal combustion engine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07208151A (en) * 1994-01-27 1995-08-08 Toyota Motor Corp Exhaust emission control device of internal combustion engine
DE19511548A1 (en) * 1995-03-29 1996-06-13 Daimler Benz Ag Nitrous oxide reduction system in vehicle engine exhaust
DE19607151C1 (en) * 1996-02-26 1997-07-10 Siemens Ag Regeneration of nitrogen oxide storage catalyst
EP0814248A2 (en) * 1996-06-21 1997-12-29 Ngk Insulators, Ltd. Method of controlling an engine exhaust gas system and method of detecting deterioration of catalyst/adsorbing means
EP0872633A2 (en) * 1997-04-18 1998-10-21 Volkswagen Aktiengesellschaft Process for the reduction of nitrogen oxides in the exhaust gas of an internal combustion engine
EP0936349A2 (en) * 1998-02-12 1999-08-18 Nissan Motor Company, Limited Method and system for diagnosing deterioration of NOx catalyst
WO1999049190A1 (en) * 1998-03-20 1999-09-30 Ab Volvo Method and arrangement for control of air-fuel ratio of combustion engine
WO2000000729A1 (en) * 1998-06-26 2000-01-06 Siemens Aktiengesellschaft METHOD FOR REGENERATING AN NOx STORAGE CATALYST FOR AN INTERNAL COMBUSTION ENGINE
EP1053777A1 (en) * 1999-05-19 2000-11-22 Robert Bosch Gmbh Process for controlling the catalytic activity of an NOx-storage catalyst

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) *

Also Published As

Publication number Publication date
EP1118756B1 (en) 2007-01-03
EP1118756A2 (en) 2001-07-25
ATE350569T1 (en) 2007-01-15
US6632764B2 (en) 2003-10-14
DE50111757D1 (en) 2007-02-15
US20020128146A1 (en) 2002-09-12

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