FR2938009B1 - Procede de controle du fonctionnement d'une vanne de dosage d'un systeme d'agent reducteur d'oxydes nox d'un moteur a combustion - Google Patents

Procede de controle du fonctionnement d'une vanne de dosage d'un systeme d'agent reducteur d'oxydes nox d'un moteur a combustion

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Publication number
FR2938009B1
FR2938009B1 FR0957716A FR0957716A FR2938009B1 FR 2938009 B1 FR2938009 B1 FR 2938009B1 FR 0957716 A FR0957716 A FR 0957716A FR 0957716 A FR0957716 A FR 0957716A FR 2938009 B1 FR2938009 B1 FR 2938009B1
Authority
FR
France
Prior art keywords
reducing agent
controlling
combustion engine
agent system
metering valve
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.)
Active
Application number
FR0957716A
Other languages
English (en)
Other versions
FR2938009A1 (fr
Inventor
Niclas Karlsson
Martin Czasch
Lars Wonnemann
Thomas Lorenz
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 FR2938009A1 publication Critical patent/FR2938009A1/fr
Application granted granted Critical
Publication of FR2938009B1 publication Critical patent/FR2938009B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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]
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/05—Systems for adding substances into exhaust
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • 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
    • 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
    • Y02T10/40—Engine management systems

Abstract

Procédé de contrôle du fonctionnement d'une vanne de dosage (310) d'un système d'agent réducteur d'un moteur à combustion selon lequel l'agent réducteur (105) est débité à partir d'un réservoir (100) par une pompe (120), commandée à pression constante vers une vanne de dosage (310). Selon un procédé : - on applique à la vanne de dosage (310) une grandeur de commande caractérisant la production d'une variation d'état de la vanne de dosage (310), - on saisit une grandeur caractérisant le débit de la pompe (120), et - à partir de la grandeur caractérisant le débit, on conclut au fonctionnement de la vanne de dosage (310).
FR0957716A 2008-11-04 2009-11-02 Procede de controle du fonctionnement d'une vanne de dosage d'un systeme d'agent reducteur d'oxydes nox d'un moteur a combustion Active FR2938009B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008043469.8A DE102008043469B4 (de) 2008-11-04 2008-11-04 Verfahren zur Prüfung der Funktionsfähigkeit eines Dosierventils eines NOx-Reduktionssystems einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
FR2938009A1 FR2938009A1 (fr) 2010-05-07
FR2938009B1 true FR2938009B1 (fr) 2014-12-26

Family

ID=42062862

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0957716A Active FR2938009B1 (fr) 2008-11-04 2009-11-02 Procede de controle du fonctionnement d'une vanne de dosage d'un systeme d'agent reducteur d'oxydes nox d'un moteur a combustion

Country Status (3)

Country Link
US (1) US8145408B2 (fr)
DE (1) DE102008043469B4 (fr)
FR (1) FR2938009B1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5633190B2 (ja) * 2010-05-25 2014-12-03 いすゞ自動車株式会社 復帰制御システム
SE535143C2 (sv) * 2010-05-28 2012-04-24 Scania Cv Ab Metod och system för provning av ett insprutningssystem vid en avgasningsprocess eller en förbränningsprocess
FR2961853A1 (fr) * 2010-06-23 2011-12-30 Inergy Automotive Systems Res Methode pour controler un systeme scr
FR2961854A1 (fr) * 2010-06-23 2011-12-30 Inergy Automotive Systems Res Methode pour controler un systeme scr
CN103038474B (zh) * 2010-06-23 2016-08-03 英瑞杰汽车系统研究公司 用于监控scr系统的方法
DE102011078870A1 (de) 2011-01-20 2012-07-26 Robert Bosch Gmbh Verfahren zur Überwachung von Funktionen eines Dosiersystems
EP2780562A1 (fr) * 2011-11-16 2014-09-24 Emitec Gesellschaft für Emissionstechnologie mbH Dispositif de distribution pour distribuer un additif liquide hors d'un réservoir et procédé correspondant
DE102012206430B4 (de) 2012-04-19 2015-10-08 Robert Bosch Gmbh Verfahren zur Diagnose eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens
DE102012212562B4 (de) * 2012-07-18 2020-11-26 Robert Bosch Gmbh Verfahren zum Betreiben eines Pumpensystems
DE102012215024A1 (de) * 2012-08-23 2014-02-27 Robert Bosch Gmbh Verfahren zur Überwachung eines Drucksensors in einem Förder- und Dosiersystem für ein Reaktionsmittel eines Katalysators
DE102012218092A1 (de) 2012-10-04 2014-04-10 Robert Bosch Gmbh Verfahren zur Funktionsüberwachung von Dosierventilen eines Dosiersystems
DE112014001022B4 (de) 2013-02-27 2021-07-29 Cummins Ip, Inc. Vorrichtung, Verfahren und System zur Diagnose der Leistung von Reduktionsmittelabgabe
DE102013207866A1 (de) 2013-04-30 2015-08-13 Robert Bosch Gmbh Verfahren zur Diagnose eines Dosier-Systems und Vorrichtung zur Durchführung des Verfahrens
DE102013212729B4 (de) 2013-06-28 2023-02-16 Robert Bosch Gmbh Verfahren zur Diagnose eines Dosier-Systems und Vorrichtung zur Durchführung des Verfahrens sowie Steuergerät-Programm und Steuergerät-Programmprodukt
US8920757B1 (en) * 2013-10-24 2014-12-30 Cummins Emission Solutions Inc. Reductant dosing control systems and methods
DE102016213415A1 (de) 2015-08-31 2017-03-02 Robert Bosch Engineering and Business Solutions Ltd. Vorrichtung zum bestimmen einer anomalie in einem mit druck beaufschlagten fluidzufuhrsystem und verfahren dafür
DE102016210619A1 (de) * 2016-06-15 2017-12-21 Robert Bosch Gmbh Verfahren zur Diagnose eines Reagenzmittel-Dosiersystems, Vorrichtung zur Durchführung des Verfahrens, Computer-Programm sowie Computer-Programmprodukt
DE102018200467A1 (de) * 2018-01-12 2019-07-18 Robert Bosch Gmbh Verfahren zum Einlernen von mindestens einem Pumpenmerkmal einer Pumpe eines Fördermoduls eines SCR-Katalysatorsystems
DE102020007053A1 (de) 2020-11-19 2022-05-19 Hydac Fluidtechnik Gmbh Prüfvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436415A1 (de) * 1994-10-12 1996-04-18 Bosch Gmbh Robert Einrichtung zum Nachbehandeln von Abgasen einer selbstzündenden Brennkraftmaschine
GB9511996D0 (en) * 1995-06-13 1995-08-09 Lucas Ind Plc Fuel system
DE19646646C2 (de) 1996-11-12 1998-12-10 Daimler Benz Ag Verfahren und Vorrichtung zur Stickoxidreduktionsmittelzudosierung zum Abgas einer Verbrennungsanlage
DE19819579C1 (de) 1998-04-30 1999-09-30 Siemens Ag Verfahren und Vorrichtung zur Abgasnachbehandlung für eine mit einem SCR-Katalysator ausgestattete Brennkraftmaschine
DE102004021372B4 (de) 2004-04-30 2014-05-28 Robert Bosch Gmbh Verfahren zum Dosieren eines Reagenzmittels zur Reinigung des Abgases von Brennkraftmaschinen und Vorrichtung zur Durchführung des Verfahrens
JP4659648B2 (ja) * 2006-03-08 2011-03-30 本田技研工業株式会社 燃料供給系の異常判定装置
US20080302089A1 (en) * 2007-06-06 2008-12-11 Paul Way Dispensing System with Remotely Mounted Metering Device
DE102007044001B4 (de) * 2007-09-14 2019-08-01 Robert Bosch Gmbh Verfahren zur Steuerung eines Kraftstoffeinspritzsystems einer Brennkraftmaschine

Also Published As

Publication number Publication date
US8145408B2 (en) 2012-03-27
FR2938009A1 (fr) 2010-05-07
US20100114455A1 (en) 2010-05-06
DE102008043469B4 (de) 2019-01-17
DE102008043469A1 (de) 2010-05-06

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