DE50114044D1 - Process and devices for the regeneration of a NOx storage catalyst - Google Patents

Process and devices for the regeneration of a NOx storage catalyst

Info

Publication number
DE50114044D1
DE50114044D1 DE50114044T DE50114044T DE50114044D1 DE 50114044 D1 DE50114044 D1 DE 50114044D1 DE 50114044 T DE50114044 T DE 50114044T DE 50114044 T DE50114044 T DE 50114044T DE 50114044 D1 DE50114044 D1 DE 50114044D1
Authority
DE
Germany
Prior art keywords
regeneration
devices
nox storage
storage catalyst
catalyst
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
DE50114044T
Other languages
German (de)
Inventor
Hermann Hahn
Ekkehard Pott
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
Priority claimed from DE2000157938 external-priority patent/DE10057938A1/en
Priority claimed from DE2000157936 external-priority patent/DE10057936A1/en
Application filed by Volkswagen AG filed Critical Volkswagen AG
Application granted granted Critical
Publication of DE50114044D1 publication Critical patent/DE50114044D1/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
    • F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • 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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0802—Temperature of the exhaust gas treatment apparatus
    • F02D2200/0804—Estimation of the temperature of the 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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0806—NOx storage amount, i.e. amount of NOx stored on NOx trap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0814—Oxygen storage amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0816—Oxygen storage capacity
    • 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
    • F02D41/1454—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 oxygen content or concentration or the air-fuel ratio
DE50114044T 2000-11-22 2001-11-21 Process and devices for the regeneration of a NOx storage catalyst Expired - Lifetime DE50114044D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000157938 DE10057938A1 (en) 2000-11-22 2000-11-22 Regenerating nitrogen oxides storage catalyst in I.C. engine involves extrapolating oxygen-dependent signal from oxygen-sensitive measuring device
DE2000157936 DE10057936A1 (en) 2000-11-22 2000-11-22 Regenerating nitrogen oxides storage catalyst in exhaust gas channel of lean-burn I.C. engine involves using extrapolated oxygen-dependent signal

Publications (1)

Publication Number Publication Date
DE50114044D1 true DE50114044D1 (en) 2008-08-07

Family

ID=26007746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50114044T Expired - Lifetime DE50114044D1 (en) 2000-11-22 2001-11-21 Process and devices for the regeneration of a NOx storage catalyst

Country Status (2)

Country Link
EP (1) EP1209332B8 (en)
DE (1) DE50114044D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10361286B4 (en) * 2003-12-24 2013-09-19 Daimler Ag Process for the regeneration of a nitrogen oxide storage catalyst
GB2424197B (en) * 2005-03-15 2009-01-14 Ford Global Tech Llc A method for adaptively controlling the regeneration of a lean nox trap
US8006480B2 (en) * 2007-07-25 2011-08-30 Eaton Corporation Physical based LNT regeneration strategy
GB2504975A (en) * 2012-08-15 2014-02-19 Gm Global Tech Operations Inc Method of controlling a DeSOx regeneration process of a Lean NOx Trap
FR3030620B1 (en) * 2014-12-22 2018-03-09 Renault S.A.S METHOD FOR PURGING A NITROGEN OXIDE TRAP AND ASSOCIATED MOTORIZATION DEVICE
US9631565B2 (en) * 2015-09-15 2017-04-25 Hyundai Motor Company Control method for improving nitrogen oxide purification performance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0814031A (en) * 1994-06-24 1996-01-16 Hitachi Ltd Judgement on reduction and absorption performance of nox reduction catalyst in internal combustion engine, and reduction of nox
EP0940570B1 (en) * 1998-01-09 2001-08-22 Ford Global Technologies, Inc. Method for regenerating a nitrogen oxide trap in the exhaust system of an internal combustion engine taking into account the exhaust gas mass flow
DE19808382A1 (en) * 1998-02-27 1999-09-02 Volkswagen Ag Control of a NOx absorber catalytic converter
DE19844082C1 (en) * 1998-09-25 1999-10-14 Siemens Ag Regeneration of a nitrogen oxides storage catalyst used with lean burn engine
FR2785331B1 (en) * 1998-10-28 2000-12-22 Renault METHOD FOR CONTROLLING THE PURGE OF NITROGEN OXIDES FROM A CATALYTIC EXHAUST TREATMENT POT OF AN INTERNAL COMBUSTION ENGINE
DE19915793A1 (en) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Process for the desorption of a nitrogen oxide adsorber of an exhaust gas cleaning system

Also Published As

Publication number Publication date
EP1209332B1 (en) 2008-06-25
EP1209332A3 (en) 2004-06-09
EP1209332A2 (en) 2002-05-29
EP1209332B8 (en) 2008-08-13

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