WO2005066468A3 - Verfahren zur regeneration eines stickoxid-speicherkatalysators - Google Patents

Verfahren zur regeneration eines stickoxid-speicherkatalysators Download PDF

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Publication number
WO2005066468A3
WO2005066468A3 PCT/EP2004/013604 EP2004013604W WO2005066468A3 WO 2005066468 A3 WO2005066468 A3 WO 2005066468A3 EP 2004013604 W EP2004013604 W EP 2004013604W WO 2005066468 A3 WO2005066468 A3 WO 2005066468A3
Authority
WO
WIPO (PCT)
Prior art keywords
nitrogen oxide
regeneration phase
accumulator catalyst
regenerating
combustion engine
Prior art date
Application number
PCT/EP2004/013604
Other languages
English (en)
French (fr)
Other versions
WO2005066468A2 (de
Inventor
Jens Franz
Uwe Hofmann
Original Assignee
Daimler Chrysler Ag
Jens Franz
Uwe Hofmann
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 Daimler Chrysler Ag, Jens Franz, Uwe Hofmann filed Critical Daimler Chrysler Ag
Priority to JP2006545959A priority Critical patent/JP4518277B2/ja
Priority to US10/584,237 priority patent/US7946108B2/en
Publication of WO2005066468A2 publication Critical patent/WO2005066468A2/de
Publication of WO2005066468A3 publication Critical patent/WO2005066468A3/de

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
    • F02D41/021—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
    • 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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)

Abstract

Es wird ein Verfahren zur Regeneration eines in einer Abgasleitung (3) einer Brennkraftmaschine (1) angeordneten Stickoxid-Speicherkatalysators (4) vorgeschlagen. Bei dem Verfahren wird bei Überschreiten eines vorgebbaren Auslöseschwellenwertes für die Stickoxidkonzentration im Abgas ausgangsseitig des Stickoxid-Speicherkatalysators (4) in einer ersten Regenerationsphase (11) für die Luftzahl λM des der Brennkraftmaschine (1) zugeführten Luft-­Kraftstoffgemisches ein konstanter Wert eingestellt. An die erste Regenerationsphase (11) schliesst sich eine zweite Regenerationsphase (12) an. Erfindungsgemäss wird in der zweiten Regenerationsphase (12) die zeitliche Änderung d λM/dt der Luftzahl λM in Abhängigkeit vom Massenstrom des durch den Stickoxid-Speicherkatalysator (4) strömenden Abgases oder in Abhängigkeit von einer mit dem Abgasmassenstrom verknüpften Brennkraftmaschinenbetriebsgrösse eingestellt.
PCT/EP2004/013604 2003-12-24 2004-12-01 Verfahren zur regeneration eines stickoxid-speicherkatalysators WO2005066468A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006545959A JP4518277B2 (ja) 2003-12-24 2004-12-01 ＮＯｘ吸蔵触媒コンバータの再生方法
US10/584,237 US7946108B2 (en) 2003-12-24 2004-12-01 Method for regenerating a nitrogen oxide storage catalytic converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10361286A DE10361286B4 (de) 2003-12-24 2003-12-24 Verfahren zur Regeneration eines Stickoxid-Speicherkatalysators
DE10361286.6 2003-12-24

Publications (2)

Publication Number Publication Date
WO2005066468A2 WO2005066468A2 (de) 2005-07-21
WO2005066468A3 true WO2005066468A3 (de) 2009-03-12

Family

ID=34683890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/013604 WO2005066468A2 (de) 2003-12-24 2004-12-01 Verfahren zur regeneration eines stickoxid-speicherkatalysators

Country Status (4)

Country Link
US (1) US7946108B2 (de)
JP (1) JP4518277B2 (de)
DE (1) DE10361286B4 (de)
WO (1) WO2005066468A2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050517A1 (de) * 2005-10-21 2007-04-26 Umicore Ag & Co. Kg Verfahren zum Betreiben eines Stickoxid-Speicherkatalysators an einem Dieselmotor
KR100821793B1 (ko) * 2005-12-12 2008-04-11 현대자동차주식회사 NOx 흡장촉매 재생방법
US8112988B2 (en) * 2006-03-16 2012-02-14 Ford Global Technologies, Llc System and method for desulfating a NOx trap
US20080104944A1 (en) * 2006-10-31 2008-05-08 Caterpillar Inc. Engine emissions control system
DE102007022592A1 (de) * 2007-05-14 2008-11-27 Robert Bosch Gmbh Verfahren zur Bestimmung einer Kraftstoffzusammensetzung
FR2925357A1 (fr) * 2007-12-21 2009-06-26 Renault Sas Procede et systeme de regeneration d'un piege a nox
US8359829B1 (en) * 2009-06-25 2013-01-29 Ramberg Charles E Powertrain controls
DE102010036667A1 (de) * 2010-07-28 2012-02-02 Ford Global Technologies, Llc. Verfahren zum Anpassen eines Nachbehandlungsbauteils im Abluftsystem eines Kraftfahrzeugs
AU2013295586B2 (en) 2012-07-27 2016-10-20 SerVaas Laboratories, Inc. Catalytic converter, a kit for servicing a catalytic converter, and method for servicing a catalytic converter
US9752480B2 (en) * 2012-12-23 2017-09-05 Mack Trucks, Inc. Method of operating a diesel engine and diesel engine arrangement having plural operating modes
JP6163837B2 (ja) * 2013-04-04 2017-07-19 いすゞ自動車株式会社 排気ガス浄化システム
AU2020208415A1 (en) * 2019-01-17 2021-07-22 Ohio State Innovation Foundation Systems, methods and materials for stable phase syngas generation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915793A1 (de) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Verfahren zur Desorption eines Stickoxidadsorbers einer Abgasreinigungsanlage
EP1209332A2 (de) * 2000-11-22 2002-05-29 Volkswagen Aktiengesellschaft Verfahren und Vorrichtungen zur Regeneration eines NOx-Speicherkatalysators
DE10113947A1 (de) * 2001-03-22 2002-09-26 Daimler Chrysler Ag Verfahren zur Verringerung des Stickoxidgehalts im Abgas einer im Mager-Fett-Wechsel betreibbaren Brennkraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2998481B2 (ja) * 1993-03-16 2000-01-11 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2002106404A (ja) * 1994-04-12 2002-04-10 Toyota Motor Corp 内燃機関の排気浄化方法
JP3334636B2 (ja) * 1998-08-13 2002-10-15 三菱自動車工業株式会社 内燃機関の排気浄化装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915793A1 (de) * 1999-04-08 2000-10-19 Daimler Chrysler Ag Verfahren zur Desorption eines Stickoxidadsorbers einer Abgasreinigungsanlage
EP1209332A2 (de) * 2000-11-22 2002-05-29 Volkswagen Aktiengesellschaft Verfahren und Vorrichtungen zur Regeneration eines NOx-Speicherkatalysators
DE10113947A1 (de) * 2001-03-22 2002-09-26 Daimler Chrysler Ag Verfahren zur Verringerung des Stickoxidgehalts im Abgas einer im Mager-Fett-Wechsel betreibbaren Brennkraftmaschine

Also Published As

Publication number Publication date
US7946108B2 (en) 2011-05-24
WO2005066468A2 (de) 2005-07-21
DE10361286B4 (de) 2013-09-19
JP4518277B2 (ja) 2010-08-04
DE10361286A1 (de) 2005-07-21
JP2008502835A (ja) 2008-01-31
US20070234710A1 (en) 2007-10-11

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