EP1138898A3 - Method and device for purification of exhaust gases - Google Patents

Method and device for purification of exhaust gases Download PDF

Info

Publication number
EP1138898A3
EP1138898A3 EP01250100A EP01250100A EP1138898A3 EP 1138898 A3 EP1138898 A3 EP 1138898A3 EP 01250100 A EP01250100 A EP 01250100A EP 01250100 A EP01250100 A EP 01250100A EP 1138898 A3 EP1138898 A3 EP 1138898A3
Authority
EP
European Patent Office
Prior art keywords
exhaust gases
nox
purifying
purification
terminating
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
EP01250100A
Other languages
German (de)
French (fr)
Other versions
EP1138898B1 (en
EP1138898A2 (en
Inventor
Ekkehard Dr. Pott
Achim Donnerstag
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 EP1138898A2 publication Critical patent/EP1138898A2/en
Publication of EP1138898A3 publication Critical patent/EP1138898A3/en
Application granted granted Critical
Publication of EP1138898B1 publication Critical patent/EP1138898B1/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
    • 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
    • F02D41/14—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
    • F02D41/1441—Plural sensors
    • 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
    • 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

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)

Abstract

Process for purifying IC engine exhaust gases comprises terminating a NOx regeneration depending on one of the NOx storage catalysts (3, 4); and measuring a condition parameter value characteristic for the termination of the NOx regeneration. An Independent claim is also included for an apparatus for purifying IC engine exhaust gases comprising an engine control unit (5) having a controller (6) for terminating the NOx regeneration. Preferred Features: The exhaust gas branches are brought together at a connecting point downstream of the NOx storage catalysts and upstream of a connected oxidation catalyst.
EP01250100A 2000-03-28 2001-03-21 Method and device for purification of exhaust gases Expired - Lifetime EP1138898B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015330A DE10015330A1 (en) 2000-03-28 2000-03-28 Process and device for exhaust gas purification
DE10015330 2000-03-28

Publications (3)

Publication Number Publication Date
EP1138898A2 EP1138898A2 (en) 2001-10-04
EP1138898A3 true EP1138898A3 (en) 2003-11-05
EP1138898B1 EP1138898B1 (en) 2005-06-15

Family

ID=7636660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01250100A Expired - Lifetime EP1138898B1 (en) 2000-03-28 2001-03-21 Method and device for purification of exhaust gases

Country Status (3)

Country Link
EP (1) EP1138898B1 (en)
AT (1) ATE298041T1 (en)
DE (2) DE10015330A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4304428B2 (en) * 2003-02-07 2009-07-29 いすゞ自動車株式会社 Exhaust gas purification system for internal combustion engine
DE10331334B4 (en) * 2003-07-10 2012-12-20 Volkswagen Ag Method for operating an internal combustion engine
DE10331331B4 (en) 2003-07-10 2012-03-01 Volkswagen Ag Method for operating an internal combustion engine
DE10331333B4 (en) * 2003-07-10 2016-01-14 Volkswagen Ag Method for operating an internal combustion engine
JP4120563B2 (en) * 2003-11-06 2008-07-16 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
DE102004015129A1 (en) * 2004-03-27 2005-10-13 Robert Bosch Gmbh Management of an internal combustion engine comprising two banks of cylinders comprises controlled regeneration of downstream nitrogen oxide storage catalysts
JPWO2010089901A1 (en) * 2009-02-06 2012-08-09 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701858A1 (en) * 1994-09-13 1996-03-20 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an engine
EP0903478A2 (en) * 1997-09-19 1999-03-24 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an internal combustion engine
DE19816276A1 (en) * 1998-04-11 1999-10-14 Audi Ag Method for operating an internal combustion engine
JP2000018021A (en) * 1998-07-03 2000-01-18 Toyota Motor Corp Exhaust emission control device for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701858A1 (en) * 1994-09-13 1996-03-20 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an engine
EP0903478A2 (en) * 1997-09-19 1999-03-24 Toyota Jidosha Kabushiki Kaisha An exhaust gas purification device for an internal combustion engine
DE19816276A1 (en) * 1998-04-11 1999-10-14 Audi Ag Method for operating an internal combustion engine
JP2000018021A (en) * 1998-07-03 2000-01-18 Toyota Motor Corp Exhaust emission control device for internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *

Also Published As

Publication number Publication date
ATE298041T1 (en) 2005-07-15
DE10015330A1 (en) 2002-02-21
EP1138898B1 (en) 2005-06-15
EP1138898A2 (en) 2001-10-04
DE50106491D1 (en) 2005-07-21

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