EP1422410A3 - Verfahren zum Betreiben einer mehrzylindrigen Brennkraftmaschine mit einem NOx-Speicherkatalysator - Google Patents

Verfahren zum Betreiben einer mehrzylindrigen Brennkraftmaschine mit einem NOx-Speicherkatalysator Download PDF

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Publication number
EP1422410A3
EP1422410A3 EP03015856A EP03015856A EP1422410A3 EP 1422410 A3 EP1422410 A3 EP 1422410A3 EP 03015856 A EP03015856 A EP 03015856A EP 03015856 A EP03015856 A EP 03015856A EP 1422410 A3 EP1422410 A3 EP 1422410A3
Authority
EP
European Patent Office
Prior art keywords
lambda
combustion engine
internal combustion
transition
fuel ratio
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
EP03015856A
Other languages
English (en)
French (fr)
Other versions
EP1422410A2 (de
EP1422410B1 (de
Inventor
Dirk Hartmann
Jens Wagner
Sujay Sirur
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1422410A2 publication Critical patent/EP1422410A2/de
Publication of EP1422410A3 publication Critical patent/EP1422410A3/de
Application granted granted Critical
Publication of EP1422410B1 publication Critical patent/EP1422410B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0082—Controlling each cylinder individually per groups or banks
    • 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
    • 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
    • F01N13/011—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 purifying devices arranged in parallel
    • 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
    • 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
    • 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
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • 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
    • 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
    • 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
    • F02D2250/18—Control of the engine output torque
    • F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Betreiben einer mehrzylindrigen Brennkraftmaschine (1), in deren Abgasstrom ein Stickoxid (NOx)-Speicherkatalysator (12) angeordnet ist. Bei dem Verfahren wird bei Bedarf aus einem Normalbetrieb in einen Heizbetrieb zum Aufheizen des NOx-Speicherkatalysators (12) übergegangen. In dem Heizbetrieb wird ein Teil der Zylinder (2, 5) der Brennkraftmaschine (1) mit einem mageren oder stöchiometrischen Luft-Kraftstoff-Verhältnis (Lambda_1) und ein anderer Teil der Zylinder (3, 4) mit einem fetten Luft-Kraftstoff-Verhältnis (Lambda_2) betrieben (sog. Split-Lambda-Betrieb). Um störende Drehmomentschwankungen während eines Übergangs zwischen dem Normalbetrieb und dem Heizbetrieb zu verringern, wird vorgeschlagen, dass ein Lambda-Wirkungsgrad (η(Lambda_1)) der mit einem mageren oder stöchiometrischen Luft-Kraftstoff-Verhältnis (Lambda_1) betriebenen Zylinder (2, 5) der Brennkraftmaschine (1) während des Übergangs von dem Normalbetrieb in den Heizbetrieb oder von dem Heizbetrieb in den Normalbetrieb einen vorgebbaren Gradienten nicht übersteigt. Dies kann bspw. dadurch erzielt werden, dass der Lambda-Wirkungsgrad (η(Lambda_1)) oder ein Luft-Kraftstoff-Verhältnis (Lambda_1) der mager betriebenen Zylinder (2, 5) der Brennkraftmaschine (1) zeitabhängig oder in Abhängigkeit von einer Drehzahl (n) oder einem Wunsch-Drehmoment (Mw) der Brennkraftmaschine (1) während des Übergangs vorgegeben werden.
EP03015856.2A 2002-11-22 2003-07-11 Verfahren zum betreiben einer mehrzylindrigen brennkraftmaschine mit einem nox-speicherkatalysator Expired - Lifetime EP1422410B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10254683 2002-11-22
DE2002154683 DE10254683A1 (de) 2002-11-22 2002-11-22 Verfahren zum Betreiben einer mehrzylindrigen Brennkraftmaschine mit einem NOx-Speicherkatalysator

Publications (3)

Publication Number Publication Date
EP1422410A2 EP1422410A2 (de) 2004-05-26
EP1422410A3 true EP1422410A3 (de) 2004-12-15
EP1422410B1 EP1422410B1 (de) 2019-05-22

Family

ID=32185917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015856.2A Expired - Lifetime EP1422410B1 (de) 2002-11-22 2003-07-11 Verfahren zum betreiben einer mehrzylindrigen brennkraftmaschine mit einem nox-speicherkatalysator

Country Status (2)

Country Link
EP (1) EP1422410B1 (de)
DE (1) DE10254683A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2874653B1 (fr) * 2004-08-31 2008-11-07 Renault Sas Procede de controle d'un moteur de vehicule equipe d'un pot catalytique
JP4285459B2 (ja) * 2005-08-22 2009-06-24 トヨタ自動車株式会社 内燃機関の排気浄化装置
AT503125B1 (de) * 2006-05-05 2007-08-15 Man Nutzfahrzeuge Oesterreich Mehrzylindrige brennkraftmaschine mit mehreren katalysatoren im abgasstrang
JP4127295B2 (ja) 2006-06-07 2008-07-30 トヨタ自動車株式会社 内燃機関のスロットル弁制御装置
EP1939420A1 (de) * 2006-12-30 2008-07-02 Umicore AG & Co. KG Verfahren zum Entschwefeln von Stickoxid-Speicherkatalysatoren in der Abgasanlage eines Magermotors
US7797929B2 (en) 2007-05-21 2010-09-21 Ford Global Technologies, Llc Low temperature emission control
DE102011084635A1 (de) * 2011-10-17 2013-04-18 Robert Bosch Gmbh Verfahren zum Betrieb einer Brennkraftmaschine und Recheneinheit
DE102011084630B4 (de) * 2011-10-17 2023-12-14 Robert Bosch Gmbh Verfahren zum Betrieb einer Brennkraftmaschine und Recheneinheit
DE102019101138A1 (de) * 2019-01-17 2020-07-23 Bayerische Motoren Werke Aktiengesellschaft Fremd gezündete Brennkraftmaschine und Verfahren zum Betreiben der Brennkraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020789A1 (de) * 1999-05-19 2001-07-12 Ford Global Tech Inc Verfahren und System für den Übergang zwischen magerem und stöchiometrischem Kraftstoff-Luft-Verhältnis in einem mit magerer Verbrennung betriebenen Motor
DE10005954A1 (de) * 2000-02-09 2001-08-16 Bosch Gmbh Robert Entschwefelung eines Speicherkatalysators durch Aufheizen
EP1205648A2 (de) * 2000-11-10 2002-05-15 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Katalysatorbeheizung
DE10131880A1 (de) * 2000-07-12 2002-05-16 Ford Global Tech Inc Verfahren zur Steuerung des Übersetzungsverhältnisses und der Betriebsart bei Magerverbrennungsmotoren
US6467259B1 (en) * 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020789A1 (de) * 1999-05-19 2001-07-12 Ford Global Tech Inc Verfahren und System für den Übergang zwischen magerem und stöchiometrischem Kraftstoff-Luft-Verhältnis in einem mit magerer Verbrennung betriebenen Motor
DE10005954A1 (de) * 2000-02-09 2001-08-16 Bosch Gmbh Robert Entschwefelung eines Speicherkatalysators durch Aufheizen
DE10131880A1 (de) * 2000-07-12 2002-05-16 Ford Global Tech Inc Verfahren zur Steuerung des Übersetzungsverhältnisses und der Betriebsart bei Magerverbrennungsmotoren
EP1205648A2 (de) * 2000-11-10 2002-05-15 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Katalysatorbeheizung
US6467259B1 (en) * 2001-06-19 2002-10-22 Ford Global Technologies, Inc. Method and system for operating dual-exhaust engine

Also Published As

Publication number Publication date
DE10254683A1 (de) 2004-06-03
EP1422410A2 (de) 2004-05-26
EP1422410B1 (de) 2019-05-22

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