WO2013149717A1 - Procédé pour faire fonctionner un système d'échappement d'un véhicule et système d'échappement correspondant - Google Patents

Procédé pour faire fonctionner un système d'échappement d'un véhicule et système d'échappement correspondant Download PDF

Info

Publication number
WO2013149717A1
WO2013149717A1 PCT/EP2013/000947 EP2013000947W WO2013149717A1 WO 2013149717 A1 WO2013149717 A1 WO 2013149717A1 EP 2013000947 W EP2013000947 W EP 2013000947W WO 2013149717 A1 WO2013149717 A1 WO 2013149717A1
Authority
WO
WIPO (PCT)
Prior art keywords
regeneration
internal combustion
combustion engine
exhaust gas
vehicle
Prior art date
Application number
PCT/EP2013/000947
Other languages
German (de)
English (en)
Inventor
Dirk Mochmann
Horst Baier
Original Assignee
Daimler 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 Daimler Ag filed Critical Daimler Ag
Publication of WO2013149717A1 publication Critical patent/WO2013149717A1/fr

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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • 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
    • F02D41/029—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 particulate filter
    • 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
    • F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
    • 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
    • F02D2041/0265—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to decrease temperature of the exhaust gas treating apparatus
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • 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

Definitions

  • the invention relates to a method for operating an exhaust system, which has a metering device for introducing a reducing agent for the
  • Exhaust gas aftertreatment is formed in the exhaust gas.
  • a particulate filter of the exhaust system is regenerated, wherein during the regeneration of the particulate filter a
  • the invention relates to an exhaust system for a vehicle.
  • a stand regeneration of a particulate filter is known.
  • the internal combustion engine of the vehicle is operated at idle.
  • the particulate filter is regenerated by burning off soot in the particulate filter.
  • Such a state regeneration is carried out in particular in vehicles in which no regeneration of the particulate filter was carried out during the driving operation or the regeneration could not be completely carried out.
  • DE 10 2004 048 335 A1 likewise describes a regeneration of a particle filter of a motor vehicle when the vehicle is stationary, wherein, however, an internal combustion engine of the vehicle is switched off during the regeneration of the particle filter.
  • the motor vehicle has a secondary fuel supply, which is connected to a pre-oxidation unit in the exhaust system. Fuel is supplied to this pre-oxidation unit in order to adjust the temperature required for the combustion of soot particles in a particle filter arranged downstream of the pre-oxidation unit.
  • a heat exchanger is arranged between the particle filter and the nitrogen oxide storage catalytic converter, via which heat can be withdrawn from the exhaust gas.
  • such an exhaust system with heat exchanger and pre-oxidation unit is relatively expensive.
  • SCR Selective Catalytic Reduction
  • nitrogen oxides from the exhaust gas are converted into nitrogen and water by means of ammonia in a selective catalytic reduction reaction.
  • a fresh air mass flow through the internal combustion engine is increased following the regeneration, for example with the aid of a turbocharger.
  • Object of the present invention is to provide a method and an exhaust system of the type mentioned, by means of which or by means of which in a particularly simple manner, the trained for introducing a reducing agent for the exhaust aftertreatment in the exhaust gas metering device can be protected from undesirable heat load.
  • the internal combustion engine following the regeneration of the particulate filter to reduce a temperature of the metering device, the internal combustion engine is further operated at idle. Due to this extended wake of the internal combustion engine exhaust gas flows through the exhaust system, and with this exhaust heat is also dissipated from the range of the metering device. This serves to protect the components of the metering device. The inevitably increased during the regeneration of the particulate filter temperature of the metering namely due to the operation of the internal combustion engine at idle following the
  • the internal combustion engine is operated at a rotational speed which at least essentially corresponds to a rotational speed set during regeneration. This can be ensured in a particularly simple manner if the speed set during the regeneration of the particulate filter is maintained unchanged after the regeneration. However, it can also be kept in a certain speed range, the speed which is specified for the regeneration. Maintaining a substantially unchanged speed even after the actual regeneration of the particulate filter has the advantage that a vehicle user acoustically perceives no change in the operating state of the internal combustion engine when the internal combustion engine is still operated at idle following the regeneration of the particulate filter. Thus, the vehicle user can be prevented from manually stopping the internal combustion engine prematurely, as could happen if the vehicle user were of the opinion that the regeneration had been completed.
  • the internal combustion engine is operated after the regeneration at a speed which is higher than a predetermined during idling in the state of the vehicle in normal operation speed.
  • a speed which is higher than a predetermined during idling in the state of the vehicle in normal operation speed Specifying such an increased speed namely a particularly high exhaust gas mass flow is passed through the exhaust system.
  • This large exhaust gas mass flow is capable of removing a great deal of heat from the area of the metering device in a particularly short time.
  • the speed of the internal combustion engine predetermined during normal operation of the vehicle may be in a speed range from 500 rpm to 600 rpm. In such an idle speed of the stationary vehicle in normal operation, it is favorable during regeneration and in the
  • both the particle filter can be efficiently regenerated and the heat can be well removed from the metering device after regeneration.
  • the time required for the desired cooling down of the metering device can be reduced to one-third to one-fourth, if the increased after the regeneration Idle speed is set and not specified for normal operation of the vehicle idle speed of the internal combustion engine.
  • the internal combustion engine is operated after the regeneration of the particulate filter at idle until a temperature is less than a predetermined threshold.
  • a temperature can be detected in particular at the metering device in order to ensure particularly well that a thermal load on the metering device is kept as low as possible.
  • the idling operation of the internal combustion engine continued after the regeneration of the particulate filter can then be ended when the temperature is lowered by a predetermined value. It is likewise easy to implement with regard to control engineering if, additionally or alternatively, the internal combustion engine is operated after idling in the regeneration of the particle filter until a predetermined period of time has elapsed. Thus, for example, the internal combustion engine over a period of 3 minutes to 10 minutes, in particular over a period of 5 minutes, after the regeneration of the particulate filter continue to be operated at idle.
  • At least one parameter of the internal combustion engine is preferably set, which causes an increase of an exit temperature of the exhaust gas at an outlet of the internal combustion engine.
  • the setting of such parameters of the internal combustion engine is also referred to as thermal management, which supports to ensure that during regeneration in the region of the particulate filter, a sufficiently high temperature is present to promote the burning of the soot particles in the particulate filter.
  • the at least one parameter, which causes the exhaust gas outlet temperature to increase is preferably reset following the regeneration. The thermal management is thus prevented, and then flows a relatively cool exhaust gas flow into the exhaust system. Thus, heat can be removed from the area of the metering device particularly quickly.
  • a fuel is introduced into the exhaust gas during the regeneration of the particulate filter, wherein the introduction of the fuel into the exhaust gas takes place during the following after the regeneration. finding operating the internal combustion engine idle is prevented.
  • the metered addition of fuel, in particular of fuel, into the exhaust gas serves during the regeneration of the particulate filter to adjust the high temperatures required for burning off the soot particles. These high temperatures are no longer needed after the regeneration, but on the contrary would hinder the desired cooling of the metering device.
  • a vehicle user is communicated with a regeneration mode of the particulate filter, wherein this regeneration mode is also communicated to the vehicle user while the internal combustion engine is operating after regeneration of the particulate filter.
  • This regeneration mode is also communicated to the vehicle user while the internal combustion engine is operating after regeneration of the particulate filter.
  • the vehicle user is thus suggested that the regeneration of the particulate filter is still on; in fact, however, the regeneration of the particulate filter is already completed, and the (preferably increased) speed of the internal combustion engine is still maintained only for cooling the metering device. It can be so reliably avoided that the vehicle user takes the internal combustion engine out of service before the internal combustion engine has taken care in idle for the desired cooling down the metering device.
  • Such communication is particularly advantageous in vehicles in which a battery disconnect switch is provided.
  • a battery disconnect switch is provided for example in commercial vehicles, which are designed for transporting dangerous goods.
  • the battery disconnect switch ensures in such vehicles that after switching off the internal combustion engine within a predetermined period of time all the control devices of the vehicle are taken out of service. However, if a control commands to the internal combustion engine issuing control unit shut down, so the internal combustion engine is no longer in the
  • the exhaust system according to the invention for a vehicle comprises a metering device, which is designed to introduce a reducing agent for the exhaust gas aftertreatment into the exhaust gas. Furthermore, a particle filter and a control device are provided, by means of which, during a regeneration of the particulate filter, an idling operation of an internal combustion engine of the vehicle is adjustable.
  • the control device is designed to reduce the temperature of the metering device, the internal combustion engine also following the Regenerate the particulate filter continues to operate at idle. This makes it easy to protect the metering device from being undesirably long
  • Fig. 1 shows an exhaust aftertreatment unit of an exhaust system for a
  • FIG. 2 shows the temperature profile in the region of a nozzle of the dosing unit in the case of a state-of-the-art state regeneration of the particle filter without engine after-run
  • Fig. 3 shows the temperature profile at an extended caster of
  • FIG. 1 shows, from an exhaust system of a commercial vehicle, only roughly schematically an exhaust gas aftertreatment unit 10 in a plan view.
  • the exhaust-gas aftertreatment unit 10 is approximately parallelepiped-shaped and extends in the direction of the plane of the drawing.
  • a plurality of catalytically and / or filter-technically effective exhaust aftertreatment components are preferably arranged, which is not shown separately here.
  • at least one thermally regenerable particle filter is arranged in the exhaust gas aftertreatment unit 10. This In the present case, it is arranged in a region 14 of the exhaust gas aftertreatment unit 10 and preferably extends parallel to the longitudinal extent of the exhaust gas aftertreatment unit 10 extending into the plane of the drawing.
  • the exhaust gas flows into the exhaust gas aftertreatment unit 10 via an inlet 12 when an internal combustion engine (not shown) of the commercial vehicle is operated.
  • a metering unit 16 attached to the exhaust aftertreatment unit 10 is provided, via which a reducing agent can be introduced into the exhaust gas.
  • a metering unit for metering liquid urea solution is arranged in the exhaust gas aftertreatment unit 10 as a further exhaust aftertreatment component. From the urea of the urea solution is in the hot exhaust gas by thermolysis and / or
  • Hydrolysis released ammonia which in turn serves as a reducing agent for a selective catalytic reduction of nitrogen oxides contained in the exhaust gas on the SCR catalyst.
  • the dosing unit 16 is exposed to a comparatively high temperature load. This is particularly well illustrated by a curve 18 shown in FIG. 2, which indicates the temperature T at a nozzle of the metering unit 16, via which the aqueous urea solution is introduced into the exhaust gas.
  • the temperature T is plotted on an ordinate 20 in FIG. 2, and the time t on an abscissa 22.
  • a phase of regeneration 26 of the particulate filter begins.
  • the regeneration 26 takes place when the vehicle is stationary, so it is a so-called state regeneration made.
  • This state regeneration is also referred to as high-idle regeneration, ie regeneration at high idle speed. Namely, during regeneration 26 of the particulate filter, an idling speed of the internal combustion engine increased relative to the normal idle speed without particulate filter regeneration while the vehicle is stopped. An accelerator pedal of the vehicle is inactive during high-idle regeneration.
  • thermal management summarizable internal engine measures 26 the temperature of the exhaust gas at the outlet of the internal combustion engine is increased during the regeneration. In addition, downstream of the
  • Section 28 of the curve 18 in Fig. 2 illustrates. The vehicle user is shown on a display that the high-idle regeneration is active.
  • Regenerating 26 was set. Although the section 28 of the curve 34 in FIG. 3 therefore corresponds to the section 28 of the curve 18 in FIG. 2, in the case of the method according to the invention illustrated with reference to FIG. 3, the overrun of the internal combustion engine of the vehicle made during a period of time 36 ensures a rapid one Dissipation of heat from the dosing unit 16. The idling operation and in particular the increased idling speed of the internal combustion engine is thus maintained without intervention of the vehicle user after it has been detected by means of a control unit that at time 30, the regeneration of the particulate filter is completed.
  • Fuel is more metered into the exhaust. This results in a comparatively large exhaust gas mass flow with low inlet temperature via the inlet 12 in the
  • the cooling after-run of the internal combustion engine following the high-idle regeneration of the particulate filter may also be terminated when the temperature T is lowered by a predetermined value ⁇ or when an otherwise determined period of time 36 has elapsed.
  • the internal combustion engine may be idled at an increased speed for a period of 5 minutes to 8 minutes over the period 36.
  • a lowering of the temperature T by about 40 ° C can be achieved.
  • the vehicle user is notified that the high-idle regeneration is active.
  • a total runtime and / or a remaining runtime of the stand regeneration can be specified on a display.
  • the time period 36 is included in these displayed periods of stand regeneration, even if the actual regeneration 26 at the time, 30 is already completed. For example, it is suggested to the vehicle user that the regeneration 26 of the particulate filter is still continuing during the period 36.
  • Battery disconnect switch ensures that all control units of the vehicle except Operation. In the present case, however, ensures the engine control unit during the period 36 for the operation of the internal combustion engine at idle with continued over the idle in normal operation increased speed of

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un système d'échappement qui comprend un dispositif de dosage par l'intermédiaire duquel un agent de réduction peut être introduit dans les gaz d'échappement pour leur traitement secondaire. Un filtre à particules est régénéré, un moteur à combustion interne du véhicule tournant au ralenti pendant la régénération (26) du filtre à particules. Le moteur à combustion interne tourne encore au ralenti (36) après la régénération (26) du filtre à particules, ce qui permet de réduire la température du dispositif de dosage. L'invention concerne également un système d'échappement d'un véhicule.
PCT/EP2013/000947 2012-04-05 2013-03-28 Procédé pour faire fonctionner un système d'échappement d'un véhicule et système d'échappement correspondant WO2013149717A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012007058.6A DE102012007058B4 (de) 2012-04-05 2012-04-05 Verfahren zum Betreiben einer Abgasanlage eines Fahrzeugs
DE102012007058.6 2012-04-05

Publications (1)

Publication Number Publication Date
WO2013149717A1 true WO2013149717A1 (fr) 2013-10-10

Family

ID=48095781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/000947 WO2013149717A1 (fr) 2012-04-05 2013-03-28 Procédé pour faire fonctionner un système d'échappement d'un véhicule et système d'échappement correspondant

Country Status (2)

Country Link
DE (1) DE102012007058B4 (fr)
WO (1) WO2013149717A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9567917B2 (en) 2014-06-18 2017-02-14 Perkins Engines Company Limited Method for controlling an engine system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019124785B4 (de) 2019-09-16 2023-07-20 Audi Ag Verfahren zum Betreiben eines Kraftfahrzeugs
CN112576391B (zh) * 2020-11-30 2022-09-23 潍柴动力股份有限公司 提升驻车再生效率的方法、装置及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030217549A1 (en) * 2002-03-04 2003-11-27 Tetsuya Watanabe Exhaust emission control device for internal combustion engine
DE102004048335A1 (de) 2004-10-01 2006-04-13 J. Eberspächer GmbH & Co. KG Abgasanlage für eine Brennkraftmaschine und zugehöriges Betriebsverfahren
FR2905406A3 (fr) * 2006-08-29 2008-03-07 Renault Sas Procede de controle de regeneration d'un filtre a particules
EP1942263A1 (fr) * 2005-10-25 2008-07-09 Isuzu Motors Limited Procede de regulation d un systeme de purification de gaz d'echappement et systeme de purification de gaz d'echappement
DE102007056102A1 (de) 2007-11-15 2009-05-20 Continental Automotive Gmbh Verfahren zum Betreiben eines Verbrennungsmotors und eines daran angeschlossenen Abgasnachbehandlungssystems mit einem Partikelfilter und einem SCR-Katalysator
WO2011087431A1 (fr) * 2010-01-14 2011-07-21 Scania Cv Ab Procédé et système permettant d'indiquer à l'extérieur une régénération du filtre à particules dans un système d'échappement de véhicule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005083305A (ja) 2003-09-10 2005-03-31 Mazda Motor Corp エンジンの排気浄化装置
US20070193258A1 (en) 2006-02-21 2007-08-23 Berke Paul L Controlling engine operation during diesel particulate filter regeneration to avoid runaway
US20080163610A1 (en) * 2007-01-05 2008-07-10 Matthew Thomas Baird Method and system for regenerating exhaust system filtering and catalyst components using variable high engine idle
DE102008032322B4 (de) * 2008-07-09 2024-01-11 Kuka Roboter Gmbh Verfahren zum Montieren zweier Bauteile mittels eines Leichtbauroboters
US8516799B2 (en) * 2009-12-23 2013-08-27 Ford Global Technologies, Llc Methods and systems for emission system control
US10018089B2 (en) 2010-09-09 2018-07-10 Dow Global Technologies Llc Method and apparatus for decreasing fuel comsumption during particulate filter generation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030217549A1 (en) * 2002-03-04 2003-11-27 Tetsuya Watanabe Exhaust emission control device for internal combustion engine
DE102004048335A1 (de) 2004-10-01 2006-04-13 J. Eberspächer GmbH & Co. KG Abgasanlage für eine Brennkraftmaschine und zugehöriges Betriebsverfahren
EP1942263A1 (fr) * 2005-10-25 2008-07-09 Isuzu Motors Limited Procede de regulation d un systeme de purification de gaz d'echappement et systeme de purification de gaz d'echappement
FR2905406A3 (fr) * 2006-08-29 2008-03-07 Renault Sas Procede de controle de regeneration d'un filtre a particules
DE102007056102A1 (de) 2007-11-15 2009-05-20 Continental Automotive Gmbh Verfahren zum Betreiben eines Verbrennungsmotors und eines daran angeschlossenen Abgasnachbehandlungssystems mit einem Partikelfilter und einem SCR-Katalysator
WO2011087431A1 (fr) * 2010-01-14 2011-07-21 Scania Cv Ab Procédé et système permettant d'indiquer à l'extérieur une régénération du filtre à particules dans un système d'échappement de véhicule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9567917B2 (en) 2014-06-18 2017-02-14 Perkins Engines Company Limited Method for controlling an engine system

Also Published As

Publication number Publication date
DE102012007058B4 (de) 2023-09-28
DE102012007058A1 (de) 2013-10-10

Similar Documents

Publication Publication Date Title
EP1121513B1 (fr) Procede de reduction des oxydes d'azote dans les gaz d'echappement d'un moteur a combustion interne fonctionnant avec un melange pauvre
DE10066237B4 (de) Verfahren zur Regeneration eines Partikelfilters einer Kraftfahrzeug-Brennkraftmaschine
DE102009008165B4 (de) System zur Regelung der Einbringungsmenge an Harnstoff in ein Abgas eines Fahrzeugs
EP2697488B1 (fr) Procédé pour controler un systeme de dosage scr
EP3099905B1 (fr) Procédé d'ajustement de la température d'un dispositif de retraitement de gaz d'échappement
WO2006100051A1 (fr) Vehicule a moteur a combustion interne et procede pour faire fonctionner un moteur a combustion interne
WO2017088958A1 (fr) Dispositif de post-traitement des gaz d'échappement pour un moteur à combustion interne et procédé pour faire fonctionner un dispositif d'entraînement équipé d'un tel dispositif de post-traitement des gaz d'échappement
EP2788598B1 (fr) Procédé et dispositif de fonctionnement d'un moteur à combustion interne équipé d'un module d'épuration des gaz d'échappement
DE112011104731T5 (de) Miniaturregenerationseinheit
DE19749400A1 (de) Verfahren zur Verringerung des NOX-Gehaltes im Abgas einer Dieselbrennkraftmaschine
DE102005015479A1 (de) Vorrichtung und Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors
DE102014105043A1 (de) Elektrisch beheizter DOC unter Verwendung von NOx-Steuerungen während eines Kaltstarts mittels KW-SCR
DE112013005723T5 (de) Reduktionsmitteleinspritzsteuerungssystem
DE102011105589A1 (de) Systeme und verfahren zur unterbrechung einerpartikelfilterregeneration
WO2009037327A1 (fr) Procédé de détection de la durée d'ouverture minimale d'un dispositif d'apport d'agent de réduction dans un système de post-traitement des gaz d'échappement comportant un catalyseur scr
EP2131019A1 (fr) Procédé de gestion d'un dispositif de traitement de gaz d'échappement et dispositif de traitement de gaz d'échappement
DE102013215525A1 (de) Leitsystem zum Zuführen von Luft und Abgasen zu einer Brennkraftmaschine hin und zum Abführen der von der Brennkraftmaschine erzeugten Abgase von der Brennkraftmaschine weg
DE102010033604B4 (de) Steuersysteme für einen motor zur regeneration von partikelmaterialfi ltern
WO2013149717A1 (fr) Procédé pour faire fonctionner un système d'échappement d'un véhicule et système d'échappement correspondant
EP3167171B1 (fr) Procédé permettant le dosage d'un agent de réduction d'un système de catalyseur scr et système de catalyseur scr correspondant
WO2019101639A1 (fr) Procédé permettant de faire fonctionner un système d'échappement, en particulier d'un véhicule automobile
DE102004049289B4 (de) Abgasnachbehandlungssystem und Abgasnachbehandlungsverfahren für einen Verbrennungsmotor
DE102018110424A1 (de) Wärmeregelsystem für fahrzeuge mit einem aktiven abgasbehandlungsmanagement
DE102007056102B4 (de) Verfahren zum Betreiben eines Verbrennungsmotors und eines daran angeschlossenen Abgasnachbehandlungssystems mit einem Partikelfilter und einem SCR-Katalysator
EP3428414B1 (fr) Dispositif et procédé pour systèmes de purification des gaz d'échappement des véhicules diesel, en particulier destinés à la mise à niveau des véhicules diesel pourvus de filtre à particules diesel, en particulier pour un mode de conduite urbain

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13716200

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13716200

Country of ref document: EP

Kind code of ref document: A1