EP1259718B8 - Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators - Google Patents

Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators Download PDF

Info

Publication number
EP1259718B8
EP1259718B8 EP01909616A EP01909616A EP1259718B8 EP 1259718 B8 EP1259718 B8 EP 1259718B8 EP 01909616 A EP01909616 A EP 01909616A EP 01909616 A EP01909616 A EP 01909616A EP 1259718 B8 EP1259718 B8 EP 1259718B8
Authority
EP
European Patent Office
Prior art keywords
regeneration
idle
storage catalyst
initiated
internal combustion
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
EP01909616A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1259718B1 (de
EP1259718A1 (de
Inventor
Hermann Hahn
Sören 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
Publication of EP1259718A1 publication Critical patent/EP1259718A1/de
Publication of EP1259718B1 publication Critical patent/EP1259718B1/de
Application granted granted Critical
Publication of EP1259718B8 publication Critical patent/EP1259718B8/de
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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • 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
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/41—Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster

Definitions

  • the invention relates to a device and a method for controlling a NO x regeneration of a NO x storage catalytic converter arranged in the exhaust line of an internal combustion engine for motor vehicles with the features mentioned in the preambles of the independent claims
  • the exhaust gas cleaning system usually comprises components such as particle filters or catalysts. If a raw NO x emission of the internal combustion engine is to be reduced, these catalysts include a reduction catalyst if the mass flows of reducing pollutants such as carbon monoxide CO and incompletely burned hydrocarbons HC are sufficiently high in the area of the reduction catalytic converter is converted to nitrogen using the reducing agents NO x
  • the catalyst is a Assigned NO x memory, which absorbs the NO x as nitrate.
  • the NO x memory can be combined with the catalyst as a so-called NO x memory catalyst
  • a storage capacity of the NO x storage catalytic converter is naturally limited in quantity, so that to avoid NO x breakthroughs, a NO x regeneration must take place at regular intervals.
  • NO x regeneration there is a change in the stoichiometric or rich operation NO x absorbed by nitrate is released again.
  • the NO x regeneration is usually started when a threshold value for a loaded state of the NO x storage catalytic converter or a NO x emission (breakthrough emission) detected downstream by a NO x sensor measuring device is exceeded.
  • the disadvantage here is that the determination of a The need for regeneration in all operating phases of the motor vehicle is based on the same criteria.
  • the NO x regeneration is initiated only after predetermined time intervals and
  • a lean phase in the idle period can be extended to the next mandatory NO x regeneration or be regulated according to the specified time intervals
  • the device according to the invention has means with which the described method steps can be carried out.
  • Such means is preferably a control device in which a procedure is stored in digitized form that enables control of the NO x regeneration in idle mode.
  • the control device can be implemented as an independent control unit are or can also be integrated into an already frequently existing engine control unit
  • a NO x regeneration is currently being carried out during a change to idling, this is preferably completed when the change to idling takes place in a fuel cut-off phase, a speed is above a predetermined threshold value or a motor vehicle speed still exceeds a predetermined limit speed If the NO x regeneration is interrupted, a flag is set which leads to the NO x regeneration being continued in a subsequent acceleration phase. Of course, the flag is withdrawn if a NO x regeneration had to be carried out in idle mode
  • NO x -Regenerat ⁇ on under specification of a lambda value in the range of 0.85 to 1, 0 by feeds on any case, the NO x should -Regenerat ⁇ on but less fat than usual NO x -Regenerat ⁇ onen be carried out this way, let the Larger development in comparison to the "normal" NO x regeneration at lambda values that are significantly less than 0.85, decrease
  • the measures mentioned can reduce the number of NO x regenerations in idle mode compared to the other operating phases of the motor vehicle, so that fuel consumption, NO x emissions during NO x regeneration and the development of larvae are reduced
  • FIG. 1 shows a circuit diagram of an internal combustion engine with a NO x storage catalytic converter arranged in the exhaust line and
  • FIG. 2 shows a block diagram for controlling a NO x regeneration of the NO x .
  • FIG. 1 shows an internal combustion engine 10 with a NO x storage catalytic converter 14 arranged subsequently in the exhaust line 12.
  • a suitable sensor system for detecting the air conditions in the exhaust gas or the proportions of specific pollutant components is assigned to the exhaust line 12.
  • a gas sensor 16 as a lambda sensor and a gas sensor 18 can be provided as a NO x -sens ⁇ t ⁇ ve measuring device.
  • the data recorded by the sensors are made available in a known manner in an engine control unit 20.
  • models are stored in digitized form with which actuating variables for the components assigned to the internal combustion engine 10 are determined allow an influencing of the combustion process with regard to an air ratio, a ignition angle or also an injected fuel mass.
  • an opening angle of an exhaust gas recirculation valve 22 o can be used as manipulated variables the one position of a throttle valve 24
  • the device and the method for regulating the combustion process are sufficiently known and are therefore not explained in more detail here
  • an NO x raw emission of the internal combustion engine 10 is increased and at the same time the reducing agents carbon monoxide CO and incompletely burned hydrocarbons HC required for converting NO x are reduced since this operating range has proven to be particularly economical has to avoid NO x emissions, the NO in a storage component of the NO x Storage catalyst 14 are absorbed If there is a change to stoichiometric or rich operation, the NO x stored in the form of nitrate is desorbed again very quickly, at least immediately after the atmospheric conditions have changed in the NO x storage catalyst 14. If the reducing agent mass flows are too low, the reducing agents are then available the catalyst component of the NO x storage catalytic converter is not possible to the extent necessary that undesirable NO x emissions can occur
  • step S1 it is determined in a first query whether the motor vehicle is in an idling phase (step S1). If this is not the case, then the NO x regeneration of the NO ⁇ storage catalytic converter 14 can be controlled using a conventional method. For example, a loading state of the NO x storage catalytic converter 14 or a NO x emission downstream of the NO x storage catalytic converter 14 are monitored (step S2). If a threshold value for this size is exceeded, the NO x regeneration is initiated by a change in stoichiometric or rich operation
  • a subsequent query (step S3) first determines whether the change to idle takes place during an ongoing NO x regeneration. If the answer is in the affirmative, it is determined in step S4 whether there is an overrun fuel cut-off phase and / or the motor vehicle still has a speed that is above a predetermined limit speed, and / or a rotational speed exceeds a predetermined threshold value. If these boundary conditions exist, the NO regeneration is first completed (step S5). Otherwise, the ongoing NO x regeneration is interrupted and a flag is set (step S6) The flag is used to ensure that after the end of the idling phase, for example in a subsequent acceleration phase of the motor vehicle, the NO x regeneration is resumed
  • Steps S5 and S6 or if the change to idle does not take place during an ongoing NO x regeneration is followed by a redefinition of the threshold values for determining the need for regeneration (step S7) the threshold values for the state of loading or the NO x emissions used in the conventional methods are increased.
  • the values are to be set in such a way that no significant NO x breakthroughs can occur during idling be ensured for the other operating phases of the internal combustion engine 10
  • a fixed time interval can be specified in step S7, after which the NO x regeneration must be carried out.
  • it has proven to be advantageous to control the air ratio during the NO x -Regenerat ⁇ on to a value in the range of ⁇ 0.85 to 1, 0 and at least less fat than in the usual NO x regeneration, since then the development of larvae is much lower

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
EP01909616A 2000-02-17 2001-01-12 Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators Expired - Lifetime EP1259718B8 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10007049 2000-02-17
DE10007049A DE10007049A1 (de) 2000-02-17 2000-02-17 Vorrichtung und Verfahren zur Steuerung einer NO¶x¶-Regeneration eines NO¶x¶-Speicherkatalysators
PCT/EP2001/000336 WO2001061173A1 (de) 2000-02-17 2001-01-12 Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators

Publications (3)

Publication Number Publication Date
EP1259718A1 EP1259718A1 (de) 2002-11-27
EP1259718B1 EP1259718B1 (de) 2005-09-21
EP1259718B8 true EP1259718B8 (de) 2006-03-01

Family

ID=7631189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01909616A Expired - Lifetime EP1259718B8 (de) 2000-02-17 2001-01-12 Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators

Country Status (6)

Country Link
EP (1) EP1259718B8 (ja)
JP (1) JP4421162B2 (ja)
CN (1) CN100340755C (ja)
AT (1) ATE305087T1 (ja)
DE (2) DE10007049A1 (ja)
WO (1) WO2001061173A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2833993B1 (fr) * 2001-12-26 2004-06-25 Renault Procede de gestion du fonctionnement de dispositifs de post-traitement actifs inseres dans la ligne d'echappement d'un moteur a combustion interne
JP3812653B2 (ja) * 2002-01-17 2006-08-23 三菱自動車工業株式会社 車両用内燃機関の排気浄化装置
DE10242914B4 (de) * 2002-09-16 2006-01-12 Siemens Ag Verfahren zur Adaption der NOx-Rohemission bei Verbrennungskraftmaschinen
DE10305635B4 (de) * 2003-02-11 2011-01-13 Continental Automotive Gmbh Abgasreinigungsverfahren für Magerbrennkraftmaschinen
FR2862097B1 (fr) * 2003-11-07 2006-02-17 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echappement d'un moteur diesel de vehicule
FR2862103B1 (fr) * 2003-11-07 2006-02-17 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echapement d'un moteur diesel de vehicule automobile
FR2862096B1 (fr) * 2003-11-07 2006-02-17 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echappement d'un moteur de vehicule
FR2862098B1 (fr) * 2003-11-07 2006-02-17 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echappement d'un moteur diesel de vehicule
FR2862099B1 (fr) 2003-11-07 2006-04-14 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration de moyens de depollution integres dans une ligne d'echappement d'un moteur diesel de vehicule
DE102011101079B4 (de) * 2011-05-10 2020-08-20 Umicore Ag & Co. Kg Verfahren zur Regeneration von NOx-Speicherkatalysatoren von Dieselmotoren mit Niederdruck-AGR
JP6481392B2 (ja) * 2015-02-02 2019-03-13 いすゞ自動車株式会社 排気浄化システム
CN104929736B (zh) * 2015-07-13 2017-11-10 潍柴动力股份有限公司 燃气车载催化器再生的控制方法
DE102017223819A1 (de) * 2017-12-27 2019-06-27 Hyundai Motor Company Regenerationssystem, Fahrzeug umfassend dasselbe und Regenerationsverfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0752521B1 (en) * 1995-01-20 2001-04-04 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning method for internal combustion engine
DE19636790A1 (de) * 1996-09-11 1998-03-12 Volkswagen Ag NOx-Abgasreinigungsverfahren
DE19640161A1 (de) * 1996-09-28 1998-04-02 Volkswagen Ag NOx-Abgasreinigungsverfahren
DE19716275C1 (de) * 1997-04-18 1998-09-24 Volkswagen Ag Verfahren zur Stickoxidreduzierung im Abgas einer Brennkraftmaschine
DE19758018A1 (de) * 1997-12-29 1999-07-01 Volkswagen Ag Regeneration eines NOx-Speicherkatalysators eines Verbrennungsmotors
DE19828609A1 (de) * 1998-06-26 1999-12-30 Siemens Ag Verfahren zur Regeneration eines NO¶x¶-Speicherkatalysators für eine Brennkraftmaschine

Also Published As

Publication number Publication date
DE10007049A1 (de) 2001-08-23
DE50107485D1 (de) 2006-02-02
EP1259718B1 (de) 2005-09-21
WO2001061173A1 (de) 2001-08-23
CN100340755C (zh) 2007-10-03
EP1259718A1 (de) 2002-11-27
ATE305087T1 (de) 2005-10-15
CN1401054A (zh) 2003-03-05
JP2003522897A (ja) 2003-07-29
JP4421162B2 (ja) 2010-02-24

Similar Documents

Publication Publication Date Title
EP0872633B1 (de) Verfahren zur Stickoxidreduzierung im Abgas einer Brennkraftmaschine
DE10224601B4 (de) Verfahren und Steuereinrichtung zur Steuerung des Beriebes einer Brennkraftmaschine
DE3504197C2 (ja)
EP1259718B8 (de) Vorrichtung und verfahren zur steuerung einer nox-regeneration eines nox-speicherkatalysators
DE19943814C2 (de) Verfahren und Vorrichtung zur Reinigung einer Mager-NOx-Falle
EP1272744B1 (de) VORRICHTUNG UND VERFAHREN ZUR ERMITTLUNG EINER REGENERATIONSNOTWENDIGKEIT EINES NOx-SPEICHERKATALYSATORS
DE60126189T2 (de) Verfahren und Vorrichtung zur Abgasemissionssteuerung einer Brennkraftmaschine
EP0903477A2 (de) Verfahren zur Regeneration einer Stickoxidfalle im Abgassystem eines Verbrennungsmotors
DE10114456A1 (de) Vorrichtung und Verfahren zur Koordination von abgasrelevanten Maßnahmen
DE10001837B4 (de) Steuerung für eine Auspuffgasreinigungseinrichtung einer Brennkraftmaschine
DE10226873B4 (de) Verfahren zur Steuerung der Betriebsartenwahl einer Verbrennungskraftmaschine
EP1111208B1 (de) Verfahren zur Regelung eines Arbeitsmodus einer Verbrennungskraftmaschine eines Kraftfahrzeuges während einer Regeneration eines in einem Abgaskanal angeordneten Speicherkatalysators
EP0614003B1 (de) Verfahren zur Steuerung des Schubbetriebes einer Brennkraftmaschine
DE102004041217A1 (de) Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE69811863T2 (de) Verfahren zum steuern der regeneration des abgaskatalysators einer brennkraftmaschine
EP1134390B1 (de) Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10316830B4 (de) Einrichtung und Verfahren zur Steuerung des Luft/Kraftstoff-Verhältnisses eines Verbrennungsmotors
EP1100613B1 (de) VERFAHREN ZUR REGENERATION EINES NOx-SPEICHERKATALYSATORS
DE10249609B4 (de) Verfahren zur Steuerung eines NOx-Speicherkatalysators
DE102006041674A1 (de) Verfahren und Steuergerät zum Betreiben eines Dieselmotors
DE19939050B4 (de) Verfahren zur Regelung eines Arbeitsmodus einer Verbrennungskraftmaschine von Kraftfahrzeugen während einer Regeneration eines Speicherkatalysators
EP1300572B1 (de) Verfahren und Vorrichtung zur Steuerung einer magerlauffähigen Verbrennungskraftmaschine
EP1210509B1 (de) Verfahren zur regelung eines verbrennungsvorgangs in einer verbrennungskraftmaschine wärhrend einer regeneration eines speicherkatalysators
EP1200715B1 (de) Verfahren zur regelung einer regeneration eines in einem abgaskanal einer verbrennungskraftmaschine angeordneten speicherkatalysators
DE10001310A1 (de) Vorrichtung und Verfahren zur Steuerung einer NOx-Regeneration eines NOx-Speicherkatalysators

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020917

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HINZE, SOEREN

Inventor name: HAHN, HERMANN

17Q First examination report despatched

Effective date: 20040816

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050921

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HINZE, SOEREN

Inventor name: HAHN, HERMANN

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50107485

Country of ref document: DE

Date of ref document: 20051027

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051221

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051221

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060101

RTI2 Title (correction)

Free format text: DEVICE AND METHOD FOR CONTROLLING THE NOX REGENERATION OF A NOX STORAGE CATALYST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060108

RTI2 Title (correction)

Free format text: DEVICE AND METHOD FOR CONTROLLING THE NOX- REGENERATION OF A NOX-STORAGE CATALYST

REF Corresponds to:

Ref document number: 50107485

Country of ref document: DE

Date of ref document: 20060202

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060221

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060622

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061020

EN Fr: translation not filed
BERE Be: lapsed

Owner name: VOLKSWAGEN A.G.

Effective date: 20060131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050921

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120131

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120131

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130801

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50107485

Country of ref document: DE

Effective date: 20130801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130112