EP1403492A3 - Method for operating a direct injection engine - Google Patents

Method for operating a direct injection engine Download PDF

Info

Publication number
EP1403492A3
EP1403492A3 EP03021026A EP03021026A EP1403492A3 EP 1403492 A3 EP1403492 A3 EP 1403492A3 EP 03021026 A EP03021026 A EP 03021026A EP 03021026 A EP03021026 A EP 03021026A EP 1403492 A3 EP1403492 A3 EP 1403492A3
Authority
EP
European Patent Office
Prior art keywords
operating condition
operating
nitrogen oxides
direct injection
seconds
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
EP03021026A
Other languages
German (de)
French (fr)
Other versions
EP1403492A2 (en
EP1403492B1 (en
Inventor
Ekkehard Dr. Pott
Helmut Sperling
Bernd Dr. Stiebels
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 EP1403492A2 publication Critical patent/EP1403492A2/en
Publication of EP1403492A3 publication Critical patent/EP1403492A3/en
Application granted granted Critical
Publication of EP1403492B1 publication Critical patent/EP1403492B1/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
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
    • F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
    • F02D41/3029—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode further comprising a homogeneous charge spark-ignited mode
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3076—Controlling fuel injection according to or using specific or several modes of combustion with special conditions for selecting a mode of combustion, e.g. for starting, for diagnosing
    • 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

Abstract

Process for operating a direct injection I.C. engine containing a catalyst system with a nitrogen oxides storage catalyst comprises storing nitrogen oxides in the storage catalyst under a first operating condition, and releasing the nitrogen oxides from the catalyst under a second operating condition. A predetermined maximum time duration is assigned to each point in a load rotational speed mapping for each first operating condition which then switches to a second operating condition assigned to this point. The first operating condition comprises a lean operation, especially a shift operation and/or homogeneous lean operation. The lambda value for an air-fuel ratio in the first operating condition is more than 1.1. The second operating condition comprises a stoichiometric operation with a lambda value for an air-fuel ratio equal to 1. The predetermined maximum time duration is 0-20 seconds, preferably 0-5 seconds.
EP03021026A 2002-09-24 2003-09-17 Method for operating a direct injection engine Expired - Lifetime EP1403492B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10244391 2002-09-24
DE10244391A DE10244391A1 (en) 2002-09-24 2002-09-24 Method for operating a direct injection internal combustion engine

Publications (3)

Publication Number Publication Date
EP1403492A2 EP1403492A2 (en) 2004-03-31
EP1403492A3 true EP1403492A3 (en) 2006-09-06
EP1403492B1 EP1403492B1 (en) 2008-08-27

Family

ID=31969502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03021026A Expired - Lifetime EP1403492B1 (en) 2002-09-24 2003-09-17 Method for operating a direct injection engine

Country Status (3)

Country Link
EP (1) EP1403492B1 (en)
AT (1) ATE406514T1 (en)
DE (2) DE10244391A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008057930A1 (en) * 2008-11-19 2010-05-20 Bayerische Motoren Werke Aktiengesellschaft Control method for an internal combustion engine
EP2792863B1 (en) 2013-02-20 2019-07-24 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
DE102021102240A1 (en) 2021-02-01 2022-08-04 Volkswagen Aktiengesellschaft Exhaust aftertreatment in an internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69221287T2 (en) * 1991-10-03 1998-02-19 Toyota Motor Co Ltd DEVICE FOR CLEANING ENGINE EXHAUST GAS
US5964199A (en) * 1996-12-25 1999-10-12 Hitachi, Ltd. Direct injection system internal combustion engine controlling apparatus
US6079397A (en) * 1997-08-08 2000-06-27 Nissan Motor Co., Ltd. Apparatus and method for estimating concentration of vaporized fuel purged into intake air passage of internal combustion engine
DE10001837A1 (en) * 1999-06-10 2000-12-14 Mitsubishi Electric Corp Exhaust gas purifier for an IC engine comprises a nitrogen oxides catalyst arranged in the exhaust gas channel of the engine, and an air-fuel ratio regulator
US20020128116A1 (en) * 1999-09-10 2002-09-12 Masanao Idogawa Combustion control apparatus for internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712356C1 (en) * 1997-03-25 1998-07-09 Daimler Benz Ag Pollution-reduction method for direct-injection petrol engine
DE19824915C1 (en) * 1998-06-04 1999-02-18 Daimler Benz Ag Method of controlling fuel injection for motor vehicle internal combustion engine
DE10035406C2 (en) * 2000-07-19 2002-07-18 Lic Tec Ag Cham Top jaw for chucks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69221287T2 (en) * 1991-10-03 1998-02-19 Toyota Motor Co Ltd DEVICE FOR CLEANING ENGINE EXHAUST GAS
US5964199A (en) * 1996-12-25 1999-10-12 Hitachi, Ltd. Direct injection system internal combustion engine controlling apparatus
US6079397A (en) * 1997-08-08 2000-06-27 Nissan Motor Co., Ltd. Apparatus and method for estimating concentration of vaporized fuel purged into intake air passage of internal combustion engine
DE10001837A1 (en) * 1999-06-10 2000-12-14 Mitsubishi Electric Corp Exhaust gas purifier for an IC engine comprises a nitrogen oxides catalyst arranged in the exhaust gas channel of the engine, and an air-fuel ratio regulator
US20020128116A1 (en) * 1999-09-10 2002-09-12 Masanao Idogawa Combustion control apparatus for internal combustion engine

Also Published As

Publication number Publication date
EP1403492A2 (en) 2004-03-31
ATE406514T1 (en) 2008-09-15
DE10244391A1 (en) 2004-04-01
DE50310403D1 (en) 2008-10-09
EP1403492B1 (en) 2008-08-27

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