DE102012201128B3 - Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts - Google Patents

Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts Download PDF

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Publication number
DE102012201128B3
DE102012201128B3 DE102012201128A DE102012201128A DE102012201128B3 DE 102012201128 B3 DE102012201128 B3 DE 102012201128B3 DE 102012201128 A DE102012201128 A DE 102012201128A DE 102012201128 A DE102012201128 A DE 102012201128A DE 102012201128 B3 DE102012201128 B3 DE 102012201128B3
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Prior art keywords
urea
exhaust gas
tract
level
urea solution
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DE102012201128A
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German (de)
English (en)
Inventor
Yasser Mohammed Sayed Yacoub
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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Publication date
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Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to DE102012201128A priority Critical patent/DE102012201128B3/de
Application granted granted Critical
Publication of DE102012201128B3 publication Critical patent/DE102012201128B3/de
Priority to CN201310027645.XA priority patent/CN103225533B/zh
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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
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/07—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0412—Methods of control or diagnosing using pre-calibrated maps, tables or charts
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas sensor
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1404—Exhaust gas temperature
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE102012201128A 2012-01-26 2012-01-26 Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts Active DE102012201128B3 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102012201128A DE102012201128B3 (de) 2012-01-26 2012-01-26 Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts
CN201310027645.XA CN103225533B (zh) 2012-01-26 2013-01-24 尿素喷射

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012201128A DE102012201128B3 (de) 2012-01-26 2012-01-26 Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts

Publications (1)

Publication Number Publication Date
DE102012201128B3 true DE102012201128B3 (de) 2013-01-17

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ID=47425869

Family Applications (1)

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DE102012201128A Active DE102012201128B3 (de) 2012-01-26 2012-01-26 Verfahren, Steuergerät und Speichermedium zur Steuerung einer Harnstoffinjektion bei niedrigen Abgastemperaturen unter Berücksichtigung des Harnstoffgehalts

Country Status (2)

Country Link
CN (1) CN103225533B (zh)
DE (1) DE102012201128B3 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10072548B2 (en) * 2015-09-29 2018-09-11 Deere & Company Method for injecting reductant into an exhaust gas of an engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008018063A1 (de) * 2007-05-02 2008-11-06 Ford Global Technologies, LLC, Dearborn Fahrzeugbasierte Strategie zum Entfernen von Harnstoffablagerungen aus einem SCR-Katalysator
DE102009044546A1 (de) * 2008-11-18 2010-05-20 Denso Corporation, Kariya-City Abgasreinigungssteuerungsvorrichtung und Abgasreinigungssystem einer Verbrennungsmaschine
DE102009053520A1 (de) * 2008-11-19 2010-06-24 GM Global Technology Operations, Inc., Detroit System und Verfahren zur Regelung einer Ammoniak-(NH3)-Speicherung bei geringen Stickoxid-(NOx)-Massendurchflüssen
EP2375023A1 (en) * 2010-04-07 2011-10-12 Ford Global Technologies, LLC Method of controlling urea dosing in an exhaust system of a vehicle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6449947B1 (en) * 2001-10-17 2002-09-17 Fleetguard, Inc. Low pressure injection and turbulent mixing in selective catalytic reduction system
US7335014B2 (en) * 2003-06-12 2008-02-26 Mobotec Usa, Inc. Combustion NOx reduction method
SE526404C2 (sv) * 2004-01-20 2005-09-06 Scania Cv Abp Förfarande och anordning för styrning av insprutning av reduktionsmedel
JP4904281B2 (ja) * 2004-10-29 2012-03-28 フィリップ・モリス・ユーエスエイ・インコーポレイテッド リーンバーン内燃エンジンのＮＯｘ還元用の還元剤計量システム
JP4444165B2 (ja) * 2005-06-10 2010-03-31 日産ディーゼル工業株式会社 エンジンの排気浄化装置
JP4710868B2 (ja) * 2007-04-25 2011-06-29 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP4888216B2 (ja) * 2007-05-08 2012-02-29 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102009015419A1 (de) * 2009-03-27 2010-09-30 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Zufuhr von Reduktionsmittel in ein Abgassystem und entsprechendes Abgassystem
CN102155279B (zh) * 2011-04-19 2012-11-07 潍柴动力股份有限公司 用于控制柴油发动机的尿素喷射系统的设备和方法
CN102518496A (zh) * 2012-01-05 2012-06-27 潍柴动力股份有限公司 一种尿素喷射量的控制方法和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008018063A1 (de) * 2007-05-02 2008-11-06 Ford Global Technologies, LLC, Dearborn Fahrzeugbasierte Strategie zum Entfernen von Harnstoffablagerungen aus einem SCR-Katalysator
DE102009044546A1 (de) * 2008-11-18 2010-05-20 Denso Corporation, Kariya-City Abgasreinigungssteuerungsvorrichtung und Abgasreinigungssystem einer Verbrennungsmaschine
DE102009053520A1 (de) * 2008-11-19 2010-06-24 GM Global Technology Operations, Inc., Detroit System und Verfahren zur Regelung einer Ammoniak-(NH3)-Speicherung bei geringen Stickoxid-(NOx)-Massendurchflüssen
EP2375023A1 (en) * 2010-04-07 2011-10-12 Ford Global Technologies, LLC Method of controlling urea dosing in an exhaust system of a vehicle

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Publication number Publication date
CN103225533B (zh) 2018-01-30
CN103225533A (zh) 2013-07-31

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