DE102012007058A1 - Method for operating an exhaust system of a vehicle and exhaust system - Google Patents

Method for operating an exhaust system of a vehicle and exhaust system

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Publication number
DE102012007058A1
DE102012007058A1 DE102012007058A DE102012007058A DE102012007058A1 DE 102012007058 A1 DE102012007058 A1 DE 102012007058A1 DE 102012007058 A DE102012007058 A DE 102012007058A DE 102012007058 A DE102012007058 A DE 102012007058A DE 102012007058 A1 DE102012007058 A1 DE 102012007058A1
Authority
DE
Germany
Prior art keywords
regeneration
internal combustion
combustion engine
during
particulate filter
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.)
Pending
Application number
DE102012007058A
Other languages
German (de)
Inventor
Dirk Mochmann
Horst Baier
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.)
Daimler AG
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
Priority to DE102012007058A priority Critical patent/DE102012007058A1/en
Publication of DE102012007058A1 publication Critical patent/DE102012007058A1/en
Application status is Pending legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00Electrical control of exhaust gas treating apparatus
    • F01N9/002Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/021Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027Introducing 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
    • F02D41/029Introducing 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06Parameters used for exhaust control or diagnosing
    • F01N2900/08Parameters used for exhaust control or diagnosing said parameters being related to the engine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/021Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D2041/0265Introducing 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/04Introducing corrections for particular operating conditions
    • F02D41/08Introducing corrections for particular operating conditions for idling
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems
    • Y02T10/47Exhaust feedback

Abstract

The invention relates to a method for operating an exhaust system, which has a metering device, via which a reducing agent for the exhaust gas aftertreatment can be introduced into the exhaust gas. A particle filter is regenerated, during which regeneration (26) of the particle filter an internal combustion engine of the vehicle is idled. To reduce a temperature of the metering device, the internal combustion engine is further idled (36) following the regeneration (26) of the particulate filter. Furthermore, the invention relates to an exhaust system for a vehicle.

Description

  • The invention relates to a method for operating an exhaust system, which has a metering device which is designed for introducing a reducing agent for the exhaust gas aftertreatment into the exhaust gas. A particulate filter of the exhaust system is regenerated, wherein during regeneration of the particulate filter, an internal combustion engine of the vehicle is operated at idle. Furthermore, the invention relates to an exhaust system for a vehicle.
  • From the prior art, a stand regeneration of a particulate filter is known. Here, when the vehicle is stationary, the internal combustion engine of the vehicle is operated at idle. During idle operation, 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.
  • The DE 10 2004 048 335 A1 also describes a regeneration of a particulate filter of a motor vehicle when the vehicle is stationary, but an internal combustion engine of the vehicle is switched off during the regeneration of the particulate filter. This is possible here, since 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 set the temperature required for burning off soot particles in a particle filter arranged downstream of the pre-oxidation unit. In order to avoid undesired heating of a nitrogen oxide storage catalytic converter arranged downstream of the particle filter, 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.
  • However, such an exhaust system with heat exchanger and pre-oxidation unit is relatively expensive.
  • Furthermore, the describes DE 10 2007 056 102 A1 an exhaust system of a motor vehicle, which comprises a particulate filter and an SCR catalyst downstream of the particulate filter (SCR = Selective Catalytic Reduction). In the SCR catalyst, nitrogen oxides from the exhaust gas are converted into nitrogen and water by means of ammonia in a selective catalytic reduction reaction. In order to reduce a heat load on the SCR catalytic converter after the particle filter has been regenerated, 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.
  • This object is achieved by a method having the features of patent claim 1 and by an exhaust system having the features of patent claim 8. Advantageous embodiments with expedient developments of the invention are specified in the dependent claims.
  • In the method according to the invention, 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 device is namely lowered due to the operation of the internal combustion engine at idle following the regeneration and cooled down the metering device. This leads to an extension of the life of the metering device.
  • In addition, this component protection is particularly easy to provide, since only the internal combustion engine for a certain period of time needs to continue to be operated at idle. Elaborate additional facilities for the active removal of heat from the exhaust system can be dispensed with.
  • In an advantageous embodiment of the invention, following the regeneration of the particulate filter, 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 operated after idling in the wake of 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.
  • Preferably, 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. 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.
  • For example, 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. With such an idling speed of the stationary vehicle in normal operation, it is favorable to set a speed of about twice this idling speed during regeneration and following regeneration, that is, for example, of 1200 rpm. Then both the particle filter can be efficiently regenerated and the heat can be well removed from the metering device after regeneration. Advantageously, the time required for the desired cooling down of the metering device can be reduced to one-third to one-fourth if the increased idling speed is set following the regeneration and not the idling speed of the internal combustion engine specified for the normal operation of the vehicle.
  • As further advantageous, it has been shown that the internal combustion engine is operated after the regeneration of the particulate filter at idle until a temperature is less than a predetermined threshold. Such 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.
  • Instead of lowering the temperature to a predetermined threshold value, 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 min to 10 mm away, in particular over a period of 5 minutes, after the regeneration of the particulate filter continue to be operated at idle.
  • During the regeneration of the particulate filter, 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. In the present case, 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.
  • In a further advantageous embodiment of the invention, a fuel is introduced into the exhaust gas during the regeneration of the particulate filter, wherein the introduction of the fuel is prevented in the exhaust gas during the operation taking place after the regeneration operating the internal combustion engine at idle. 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.
  • Finally, it has proven to be advantageous if 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. The vehicle user is thus suggested that the regeneration of the particulate filter is still on; in fact, however, is the regeneration of the particulate filter 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, in particular displaying the regeneration operation on a display, is particularly advantageous in vehicles in which a battery disconnect switch is provided. Such 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, the internal combustion engine can no longer be operated at idle and so the active cooling of the metering device can be achieved.
  • 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. In this case, the control device is designed to continue to operate the internal combustion engine after idling in order to reduce a temperature of the metering device also after the regeneration of the particulate filter. This makes it possible to easily protect the metering device from an undesirably long-lasting heat load.
  • The advantages and preferred embodiments described for the method according to the invention also apply to the exhaust system according to the invention and vice versa.
  • The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively indicated combination but also in other combinations or in isolation, without the scope of To leave invention.
  • Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and with reference to the drawings, in which the same or functionally identical elements are provided with identical reference numerals. Showing:
  • 1 an exhaust aftertreatment unit of an exhaust system for a commercial vehicle, which has a metering unit for a urea solution;
  • 2 the temperature profile in the region of a nozzle of the metering unit in a known from the prior art stand regeneration of the particulate filter without engine wake-up; and
  • 3 the temperature profile at an extended lag of the internal combustion engine of the vehicle following the state regeneration.
  • 1 shows from an exhaust system of a commercial vehicle only roughly schematically an exhaust aftertreatment unit 10 in a top view. The exhaust aftertreatment unit 10 In the present case, it is approximately parallelepiped-shaped and extends in the direction of the plane of the drawing. In the exhaust aftertreatment unit 10 are preferably a plurality of catalytically and / or filter technically effective exhaust aftertreatment devices are arranged, which is not shown separately here. In any case, in the exhaust aftertreatment unit 10 arranged at least einthermisch regenerable particle filter. This is present in an area 14 the exhaust aftertreatment unit 10 arranged and preferably extends parallel to the plane extending in the plane of the longitudinal extension of the exhaust aftertreatment unit 10 , About an inlet 12 When operating a (not shown) internal combustion engine of the commercial vehicle, the exhaust gas flows into the exhaust gas aftertreatment unit 10 one.
  • Furthermore, one is on the exhaust aftertreatment unit 10 attached dosing unit 16 provided, via which a reducing agent can be introduced into the exhaust gas. Without limiting the general public, it is assumed below that this is a metering unit for metering liquid urea solution. In this case, in the exhaust aftertreatment unit 10 in addition to the particulate filter, an SCR catalyst is arranged as a further exhaust aftertreatment component. From the urea of the urea solution is released in the hot exhaust gas by thermolysis and / or hydrolysis 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.
  • During thermal regeneration of the particulate filter, the dosing unit 16 exposed to a relatively high temperature load. This is especially good based on a 2 shown curve 18 illustrates which the temperature T at a nozzle of the dosing unit 16 indicates, via which the aqueous urea solution is introduced into the exhaust gas. The temperature T is in 2 on an ordinate 20 plotted, and the time t on an abscissa 22 ,
  • At a first time 24 begins a phase of regeneration 26 of the particulate filter. Here is the regeneration 26 when the vehicle is stationary, so it is made a so-called state regeneration. This state regeneration is also referred to as high-idle regeneration, ie regeneration at high idle speed. It is during regeneration 26 of the particulate filter is compared to the normal speed at idle without particulate filter regeneration increased idle speed of the engine set while the vehicle is stationary. An accelerator pedal of the vehicle is inactive during high-idle regeneration.
  • By within the term thermal management summarizable internal engine measures is during the regeneration 26 increases the temperature of the exhaust gas at the outlet of the internal combustion engine. In addition, fuel is metered into the exhaust gas downstream of the internal combustion engine. This leads to a strong increase in the temperature of the exhaust gas, so that soot particles that have accumulated in the particulate filter are burned off. The corresponding increase in the temperature T in the dosing unit 16 during regeneration 26 is through a section 28 the curve 18 in 2 illustrated. The vehicle user is shown on a display that the high-idle regeneration is active.
  • With the end of regeneration 26 So from a second time 30 is turned off in a conventional approach, the internal combustion engine, which can also be done automatically. The temperature T in the region of the nozzle of the dosing unit 16 Therefore, gradually decreases again, as is the case from a section 32 the curve 18 in 2 is apparent. However, this temperature drop to one for the dosing unit 16 as harmless as possible value comparatively long.
  • In the present invention, as this is a curve 34 in 3 is evident, following the regeneration 26 that is about the time 30 In addition, the internal combustion engine of the vehicle continues to operate in idle mode, in particular with the increased idle speed, which even during the regeneration 26 was set. The section 28 the curve 34 in 3 therefore corresponds to the section 28 the curve 18 in 2 However, in the case of the 3 illustrated method of the invention during a period of time 36 made after-run of the internal combustion engine of the vehicle for a rapid removal of heat from the metering 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 the time 30 the regeneration of the particulate filter is completed.
  • However, the above-described thermal management for increasing the exhaust temperature of the exhaust gas leaving the internal combustion engine becomes during this period 36 prevented. Likewise, during the time span 36 no more fuel is added to the exhaust gas. This results in a comparatively large exhaust gas mass flow with low inlet temperature via the inlet 12 in the exhaust aftertreatment unit 10 entry.
  • This high exhaust gas mass flow leads to a targeted and efficient cooling down of the dosing unit 16 , Accordingly, a second section runs 38 the curve 34 in 3 well below the reference also in 3 marked section 32 ,
  • After a predetermined or predefinable period of time, the cooling lag of the internal combustion engine is terminated and the internal combustion engine is shut off or operated again with a normally provided lower idling speed, which preferably takes place automatically. In the present case, the cooling lag of the internal combustion engine at a time 40 stopped and turned off the internal combustion engine, in which at the nozzle of the metering unit 16 a temperature which is tolerable for the desired protection of the component is present, for example a temperature of 130 ° C. However, the cooling lag 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 ΔT, or if any other predetermined period of time 36 has passed. For example, the internal combustion engine can idle at increased speed over the time period 36 be operated for a period of 5 minutes to 8 minutes.
  • During operation of the internal combustion engine at idle speed with increased speed can namely already within a period of time 36 for example, 5 minutes, a lowering of the temperature T can be achieved by about 40 ° C.
  • Both during regeneration 26 as well as during the time span 36 the vehicle user is notified that the high-idle regeneration is active. For example, for this purpose, a total runtime and / or a remaining runtime of the stand regeneration can be specified on a display. In these displayed run times of the stand regeneration, the time span is preferred 36 counted in, even if the actual regeneration 26 at the time 30 already completed. For example, it is suggested to the vehicle user during the time span 36 take the regeneration 26 of the particulate filter still on.
  • In addition, the vehicle user does not notice a difference in the rotational speed of the internal combustion engine during the regeneration 26 and during the time span 36 , So he will not be tempted, the internal combustion engine of the vehicle before the end of the cooling lag of the same, ie before the time 40 to take out of service.
  • This is particularly useful in a trained for dangerous goods transport commercial vehicle, since here after stopping the internal combustion engine, a battery disconnector ensures that all control devices of the vehicle are taken out of service. In the present case, however, provides the engine control unit during the period 36 for the operation of the internal combustion engine at idle with further compared to the idle in normal operation increased speed of, for example, 1200 U / min. This would run counter to a decommissioning of the engine control unit due to the operation of the battery disconnect switch.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • DE 102004048335 A1 [0003]
    • DE 102007056102 A1 [0005]

Claims (8)

  1. Method for operating a metering device ( 16 ) for introducing a reducing agent for the exhaust aftertreatment exhaust system ( 10 ) of a vehicle in which a particulate filter is regenerated, wherein during regeneration ( 26 ) of the particle filter, an internal combustion engine of the vehicle is operated at idle, characterized in that for reducing a temperature of the metering device ( 16 ) following regeneration ( 26 ) of the particulate filter, the internal combustion engine is still operated idle ( 36 ).
  2. A method according to claim 1, characterized in that the internal combustion engine following regeneration ( 26 ) is operated at a speed which, during regeneration ( 26 ) set at least substantially corresponds.
  3. A method according to claim 1 or 2, characterized in that the internal combustion engine following regeneration ( 26 ) is operated at a speed which, in particular by about twice, is higher than a predetermined during idling in the state of the vehicle during normal operation, in particular in the speed range from 500 rev / min to 600 rev / min lying speed.
  4. Method according to one of claims 1 to 3, characterized in that the internal combustion engine after the regeneration ( 26 ) of the particulate filter is operated at idle, - to one, in particular at the metering device ( 16 ), temperature (T) is less than a predetermined threshold and / or lowered by a predetermined value (.DELTA.T) and / or - until a predetermined period of time ( 36 ) has passed.
  5. Method according to one of claims 1 to 4, characterized in that during the regeneration ( 26 ) of the particulate filter at least one parameter of the internal combustion engine is set, which causes an increase of an outlet temperature of the exhaust gas at an outlet of the internal combustion engine, wherein the at least one parameter following the regeneration ( 26 ) is reset.
  6. Method according to one of claims 1 to 5, characterized in that during the regeneration ( 26 ) of the particulate filter, a fuel is introduced into the exhaust gas, wherein the introduction of the fuel into the exhaust gas during the following after the regeneration ( 26 ) is held operating the internal combustion engine idling.
  7. Method according to one of claims 1 to 6, characterized in that a regeneration operation of the particulate filter is communicated to a vehicle user, wherein also during the following after the regeneration ( 26 ) of the particle filter operating the internal combustion engine at idle the vehicle user of the regeneration operation is communicated.
  8. Exhaust system for a vehicle, which has a metering device designed for introducing a reducing agent for the exhaust gas aftertreatment into the exhaust gas ( 16 ) and a particle filter, wherein by means of a control device during a regeneration ( 26 ) of the particulate filter during idling operation of an internal combustion engine of the vehicle is adjustable, characterized in that the control device is adapted to reduce a temperature of the metering device ( 16 ) the internal combustion engine following regeneration ( 26 ) of the particulate filter continue to operate at idle.
DE102012007058A 2012-04-05 2012-04-05 Method for operating an exhaust system of a vehicle and exhaust system Pending DE102012007058A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102012007058A DE102012007058A1 (en) 2012-04-05 2012-04-05 Method for operating an exhaust system of a vehicle and exhaust system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012007058A DE102012007058A1 (en) 2012-04-05 2012-04-05 Method for operating an exhaust system of a vehicle and exhaust system
PCT/EP2013/000947 WO2013149717A1 (en) 2012-04-05 2013-03-28 Method for operating an exhaust gas system of a vehicle, and corresponding exhaust gas system

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DE102012007058A1 true DE102012007058A1 (en) 2013-10-10

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WO (1) WO2013149717A1 (en)

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Publication number Priority date Publication date Assignee Title
GB2527331B (en) 2014-06-18 2017-01-25 Perkins Engines Co Ltd A method for controlling an engine system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004048335A1 (en) 2004-10-01 2006-04-13 J. Eberspächer GmbH & Co. KG Exhaust system for internal combustion engine, motor vehicle, comprises exhaust line in which oxidation catalyst is arranged for treating exhaust gases coming from internal combustion engine
DE102007046564A1 (en) * 2007-01-05 2008-07-10 Detroit Diesel Corp., Detroit Method and system for reclaiming Abgasanlagenfilterungs- and catalyst components using a variable engine idling at a high speed
DE102008032322A1 (en) * 2008-07-09 2009-04-02 Daimler Ag Method for mounting differential gear housing and rear axle gear unit housing by lightweight construction robot, involves contacting housings by robots such that differential gear housing is partially and oscillatingly moved by robot
DE102007056102A1 (en) 2007-11-15 2009-05-20 Continental Automotive Gmbh A method of operating an internal combustion engine and connected thereto, the exhaust aftertreatment system with a particle filter and a SCR catalyst
DE102010063871A1 (en) * 2009-12-23 2011-06-30 Ford Global Technologies, LLC, Mich. Methods and systems for the emission control system

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JP3879833B2 (en) * 2002-03-04 2007-02-14 三菱自動車工業株式会社 Exhaust gas purification system for an internal combustion engine
JP3992057B2 (en) * 2005-10-25 2007-10-17 いすゞ自動車株式会社 Control method and exhaust gas purification system of an exhaust gas purification system
FR2905406A3 (en) * 2006-08-29 2008-03-07 Renault Sas Particle filter regeneration control method for internal combustion engine of vehicle, involves evaluating oxygen quantity consumed in exhaust line, and using test bench to control motor through control unit to admit fuel quantity in line
SE535339C2 (en) * 2010-01-14 2012-07-03 Scania Cv Ab Method and system for indicating regeneration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004048335A1 (en) 2004-10-01 2006-04-13 J. Eberspächer GmbH & Co. KG Exhaust system for internal combustion engine, motor vehicle, comprises exhaust line in which oxidation catalyst is arranged for treating exhaust gases coming from internal combustion engine
DE102007046564A1 (en) * 2007-01-05 2008-07-10 Detroit Diesel Corp., Detroit Method and system for reclaiming Abgasanlagenfilterungs- and catalyst components using a variable engine idling at a high speed
DE102007056102A1 (en) 2007-11-15 2009-05-20 Continental Automotive Gmbh A method of operating an internal combustion engine and connected thereto, the exhaust aftertreatment system with a particle filter and a SCR catalyst
DE102008032322A1 (en) * 2008-07-09 2009-04-02 Daimler Ag Method for mounting differential gear housing and rear axle gear unit housing by lightweight construction robot, involves contacting housings by robots such that differential gear housing is partially and oscillatingly moved by robot
DE102010063871A1 (en) * 2009-12-23 2011-06-30 Ford Global Technologies, LLC, Mich. Methods and systems for the emission control system

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