EP2347112A1 - Procédé de régénération pour un filtre à particules diesel sans brûleur - Google Patents

Procédé de régénération pour un filtre à particules diesel sans brûleur

Info

Publication number
EP2347112A1
EP2347112A1 EP09759676A EP09759676A EP2347112A1 EP 2347112 A1 EP2347112 A1 EP 2347112A1 EP 09759676 A EP09759676 A EP 09759676A EP 09759676 A EP09759676 A EP 09759676A EP 2347112 A1 EP2347112 A1 EP 2347112A1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
regeneration
requested
control
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.)
Withdrawn
Application number
EP09759676A
Other languages
German (de)
English (en)
Inventor
Taghi Akbarian
Heiner BÜLTE
Ulrich Pape
Thorsten Van Der Tuuk
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.)
Deutz AG
Original Assignee
Deutz 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 Deutz AG filed Critical Deutz AG
Publication of EP2347112A1 publication Critical patent/EP2347112A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D2041/026—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus using an external load, e.g. by increasing generator load or by changing the gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/08—Exhaust gas treatment apparatus parameters
    • F02D2200/0812—Particle filter loading
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
    • F02D2200/604—Engine control mode selected by driver, e.g. to manually start particle filter regeneration or to select driving style

Definitions

  • the invention relates to a method for regenerating a particulate filter in the exhaust system of an internal combustion engine, wherein the regeneration takes place by increasing the exhaust gas temperature, which takes place by increasing an output or absorbed by an auxiliary engine torque.
  • the invention has for its object to provide a regeneration method for a diesel particulate filter without a burner for an internal combustion engine, which can be used in particular in a work machine.
  • a hydraulic machine is used as an additional machine.
  • hydraulic machines are usually installed in working machines, so that no additional equipment is necessary here.
  • larger power bandwidths than in electrical machines are covered. This creates a wider range of uses than is possible with electric machines.
  • a direct or indirect activation of the auxiliary machine is carried out or requested by a central engine control electronics when a predetermined loading limit of the soot filter has been reached.
  • the current loading density of the soot filter can be retrieved in a suitable manner.
  • Possible determination methods are direct measurement methods or calculation methods with evaluation of characteristic diagrams and current operating states of the internal combustion engine.
  • the load delivered or received by the hydraulic machine is then increased semi-automatically or automatically until the exhaust-gas temperature, which is measured via at least one corresponding sensor, is within a desired temperature window.
  • monitoring takes place so that the burn-off temperature in the particulate filter does not exceed both a lower and an upper limit.
  • an indirect control during a parking mode of the internal combustion engine is requested.
  • Park mode in this context means that the internal combustion engine is running, the implement or the work machine in which the internal combustion engine is installed, but is not in a working mode.
  • the (indirect) control is requested by an optional display, and after triggering by a start button, the optional display changes to an operating display for the duration of the regeneration process that then takes place.
  • This manual start of the regeneration process ensures that the appropriate operator can decide whether the regeneration process can be started or not. For example, it is conceivable that the work machine is turned off is to be and accordingly an unfavorable time to start a regeneration process would be present.
  • the internal combustion engine control electronics continuously send a signal sequence to the control electronics of the hydraulic machine with the following information:
  • Regeneration is in progress / not in progress
  • the regeneration process is then started, it is calculated on the basis of the present measured values whether the hydraulic machine has to be adjusted with regard to the delivered or absorbed torque and, if so, to what extent it has to be adjusted.
  • Regeneration then starts. For the duration of the then running regeneration process, the operator by an optical and / or acoustic signal (operation display) of this process in
  • the engine control electronics When the regeneration process is completed, the engine control electronics returns to normal operation and the corresponding signals are turned off.
  • the internal combustion engine control electronics the corresponding tasks by this then directly controls an example used in the hydraulic circuit valve. With this valve, the torque is then set in the desired manner.
  • the internal combustion engine should not be turned off during an ongoing regeneration process. If this happens, for example, for compelling reasons, a corresponding information is stored in a memory of the engine control electronics and beyond the corresponding data, for example, how far the regeneration had progressed at the time of Abs damagess.
  • Operating mode means that normal working operation is meant.
  • the internal combustion engine is running and the working device or the working machine in which the internal combustion engine is installed is in working mode.
  • this operating mode there is normally a direct control, that is, the regeneration is started automatically, if the boundary conditions explained above are given.
  • the operating mode continues, at least normally, until regeneration is complete.
  • the current regeneration can be displayed optically, for example, to inform the operator.
  • an indirect control can also be provided, in which - as already described above - a manual triggering of the regeneration process is initiated , The regeneration then runs off automatically, that is, there is no controlling manual intervention in the hydraulic necessary.
  • the regeneration method according to the invention thus provides the possibility of influencing the relationship between the oxidation of nitrogen oxide (NO.sub.x) and soot by internal engine internal combustion engine measures and / or an increase in the exhaust gas temperature by increasing the torque delivered or absorbed by the auxiliary machine in order to set the conditions for starting to fulfill a regeneration.
  • the ratio of emitted nitrogen oxide (NO x ) to carbon black should be within a specified range. If the actual ratio is outside this range, then an appropriate value can be set.
  • the internal combustion engine electronics issues a warning signal when a first loading density and a requested indirect activation are exceeded.
  • a second loading density is exceeded, this is a power reduction of the internal combustion engine. If these are also ignored or the internal combustion engine continues to operate without power reduction without the initiation of a regeneration process, a time-delayed shutdown of the internal combustion engine takes place in a third stage. Then (again with a time delay) a restart of the internal combustion engine is possible, in which case - if not the required regeneration (unavoidable). as soon as) is initiated - a renewed shutdown of the internal combustion engine takes place.
  • the single figure shows in the form of a flow chart, the continuously running operations.
  • the degree of filling 1 of the particulate filter is determined and then determined in a diagnostic step (calculation step) 2, which loading density is present. If it is determined that at least a first limit value has been exceeded without a manual regeneration to be initiated being initiated, a warning signal 3 is emitted. In a next step 4, it is then checked whether the regeneration has been initiated or not. If this is not the case, then there is a power reduction 8 and a renewed check as to whether the regeneration has been initiated or not. If this is again not the case, the internal combustion engine is turned off in a step 9 and the associated data is stored in a memory 10.
  • step 4 If it is determined in step 4 that the regeneration has been initiated, a distinction is made as to whether the regeneration is to be carried out in parking mode 5 or operating mode 6. After a completely completed regeneration 7, the determination of the degree of filling 1 is started again. In an incomplete completed regeneration 7 (by stopping the engine) this is additionally noted in the memory 10. LIST OF REFERENCE NUMBERS

Abstract

L'invention concerne un procédé de régénération d'un filtre à particules monté sur le système d'échappement d'une machine à combustion interne. La régénération s'effectue en augmentant la température des gaz d'échappement grâce à une augmentation du couple fourni ou absorbé par une machine secondaire. L'invention propose un procédé de régénération pour un filtre à particules diesel sans brûleur pour moteur à combustion interne qui peut en particulier être utilisé sur une machine de travail. Le procédé de régénération est caractérisé en ce que l'on utilise, comme machine secondaire, une machine hydraulique et que la commande directe ou indirecte de la machine secondaire est effectuée à partir de l'électronique centrale de commande de la machine à combustion interne.
EP09759676A 2008-11-21 2009-11-19 Procédé de régénération pour un filtre à particules diesel sans brûleur Withdrawn EP2347112A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810058520 DE102008058520A1 (de) 2008-11-21 2008-11-21 Regenerationsverfahren für einen Dieselpartikelfilter ohne Brenner
PCT/EP2009/008236 WO2010057633A1 (fr) 2008-11-21 2009-11-19 Procédé de régénération pour un filtre à particules diesel sans brûleur

Publications (1)

Publication Number Publication Date
EP2347112A1 true EP2347112A1 (fr) 2011-07-27

Family

ID=41665014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09759676A Withdrawn EP2347112A1 (fr) 2008-11-21 2009-11-19 Procédé de régénération pour un filtre à particules diesel sans brûleur

Country Status (3)

Country Link
EP (1) EP2347112A1 (fr)
DE (1) DE102008058520A1 (fr)
WO (1) WO2010057633A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9366172B2 (en) 2013-06-04 2016-06-14 GM Global Technology Operations LLC Particulate filter device monitoring system for an internal combustion engine
DE102014112738A1 (de) * 2014-09-04 2016-03-10 Still Gmbh Verfahren zur Steuerung einer verbrennungsmotorisch angetriebenen mobilen Arbeitsmaschine mit Rußpartikelfilter
KR20210053626A (ko) * 2019-11-04 2021-05-12 두산인프라코어 주식회사 건설기계의 운행 제어 방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3660936D1 (en) * 1985-04-04 1988-11-17 Zeuna Staerker Kg Method for regenerating a soot filter in a diesel internal-combustion engine
JPS63297722A (ja) * 1987-05-29 1988-12-05 Toyota Autom Loom Works Ltd ディ−ゼル排気浄化装置の再生方法
DE10010013A1 (de) * 2000-03-02 2001-09-06 Still Gmbh Fahrzeug mit einer Brennkraftmaschine und mindestens einer elektrischen Maschine
FR2833301B1 (fr) * 2001-12-07 2006-06-30 Renault Procede de gestion de l'energie dans un vehicule automobile equipe d'un moteur a combustion interne et d'un filtre a particules
JP2004137968A (ja) * 2002-10-17 2004-05-13 Toyota Industries Corp 産業車両用エンジンの排気浄化装置および排気浄化方法
JP3755495B2 (ja) * 2002-08-09 2006-03-15 マツダ株式会社 エンジンの排気浄化装置
JP2005337062A (ja) * 2004-05-25 2005-12-08 Toyota Industries Corp 排ガス浄化フィルタ再生装置
DE102005003628A1 (de) 2005-01-26 2006-08-03 Robert Bosch Gmbh Verfahren zum Betreiben eines Antriebsstrangs mit einer Elektromaschine und Vorrichtung zur Durchführung des Verfahrens
JP4580803B2 (ja) * 2005-03-31 2010-11-17 キャタピラー エス エー アール エル 内燃機関用排気ガス浄化装置の目詰り報知装置
BRPI0621826B1 (pt) * 2006-06-14 2019-09-03 Volvo Lastvagnar Ab Método para regenerar uma unidade de purificação de gás de exaustão e sistema de motorde combustão interna compreendendo tal unidade
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
JP2008223612A (ja) * 2007-03-13 2008-09-25 Hino Motors Ltd 排気浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010057633A1 *

Also Published As

Publication number Publication date
DE102008058520A1 (de) 2010-05-27
WO2010057633A1 (fr) 2010-05-27

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