EP2513437A1 - Regeneration von partikelfiltern - Google Patents
Regeneration von partikelfilternInfo
- Publication number
- EP2513437A1 EP2513437A1 EP10800701A EP10800701A EP2513437A1 EP 2513437 A1 EP2513437 A1 EP 2513437A1 EP 10800701 A EP10800701 A EP 10800701A EP 10800701 A EP10800701 A EP 10800701A EP 2513437 A1 EP2513437 A1 EP 2513437A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- air
- engine according
- supply unit
- 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- Withdrawn
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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
- F01N3/0256—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases the fuel being ignited by electrical means
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
-
- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
- F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
Definitions
- the invention relates to an internal combustion engine and a method for operating an internal combustion engine.
- a system for regenerating a particulate filter in an exhaust pipe of an engine is known, the sensor means for detecting the temperature at the front of the filter, an air pump for supplying the front of the filter with an air flow, a heating device for electrical heating the filter and control means for energizing the heating device and the air pump during the regeneration of the filter and for calculating the temperature rise speed of the front temperature of the filter by the output of the sensor means to control the air flow of the air pump, so that the temperature rise speed reaches a predetermined value and thereby increasing the front temperature of the filter to a predetermined ignition value and controlling the air flow such that the temperature rise rate of the front temperature is reduced if a second predetermined value is exceeded, such that a In this way, the temperature rise speed of the front temperature is limited to a predetermined range.
- This is disadvantageous that no reliable statement about a stoichiometric mode of operation can be obtained by means of a simple temperature measurement.
- Air pump is a volumetric flow conveyor.
- the air volume In order to determine the exact air mass flow of the pump for a stoichiometric operation, the air volume must be multiplied by the density in order to calculate and approximately obtain the air mass flow from three sensor values and one pump characteristic diagram. Depending on the density on the suction side, the mass flow can vary with constant volumetric flow. Adjustment of the mass flow is only possible if the temperature and the pressure on the suction side are measured.
- a pressure sensor on the pressure side of the pump is needed to calculate the pressure ratio. From the requested mass flow, a volume flow is now determined on the basis of the density. This enters into a three-dimensional pump map with the pressure ratio, which determines a speed at which the pump must be operated. In this known approach there are inaccuracies z. B. by the pressure and suction pressure sensor values or the temperature sensor values, as well as in the area of the pump map by manufacturing tolerances of the manufacturer and by the changing temperature of the pump.
- the object is achieved by a device according to claim 1 and a method according to claim 1 1.
- An inventive burner thus obtains a defined, stoichiometric air fuel ratio. It is advantageous to replace the previously required three sensors and the pump map by a mass flow sensor. This measures z. B. the mass flow on the suction side of the pump and is evaluated directly by the power electronics of the compressor. The entire regulation of the mass flow is now transferred to the power electronics of the pump. The actual value is compared with the setpoint value and the speed is readjusted in accordance with the stoichiometric specifications.
- FIG. 1 shows an internal combustion engine 1 with an intake tract 2 and an exhaust tract 3. In the intake tract 2 is an air filter 4.
- a burner 6 In the exhaust tract 3 of the internal combustion engine 1 is a burner 6, a downstream oxidation catalyst 9, a diesel particulate filter 10 and an SCR catalyst 1 1.
- a temperature sensor 15 In the oxidation catalyst 9 there is a temperature sensor 15, the Temperature required for process control determined and forwarded to the control or control unit 5.
- the control or control unit 5 is connected to the combined control device 12 or power electronics 13 by means of data transmission connection.
- the combined control device 12 or power electronics 13 is in the air supply unit 7, which is designed in this embodiment as a claw compressor integrated, which saves space and conduction paths and leads to shorter reaction times.
- the air mass sensor 8 is in the intake tract 2 between the air filter 4 and pump. 7 arranged.
- the measurement signals of the sensor 8 are processed directly in the combined control device 12 and power electronics 13.
- a turbocharger 14 is arranged between the intake tract 2 and the exhaust tract 4. In an alternative embodiment, it is provided that a full-flow burner is used. When using a Vollstrombrenners can be disp
- FIG. 2 shows an internal combustion engine 1 with an intake tract 2 and an exhaust tract 3.
- intake tract 2 In the intake tract 2 is an air filter 4.
- exhaust tract 3 of the internal combustion engine 1 In the exhaust tract 3 of the internal combustion engine 1 is a burner 6, a downstream oxidation catalyst 9, a diesel particulate filter 10 and an SCR catalyst. 1 1 .
- oxidation catalytic converter 9 In the oxidation catalytic converter 9 is a temperature sensor 15 which determines the temperature required for the process control and forwards it to the control or control unit 5.
- the control or control unit 5 is connected to the combined control device 12 or power electronics 13 by means of data transmission connection.
- the combined control device 12 or power electronics 13 is integrated in the air supply unit 7, which is designed in this embodiment as a claw compressor.
- the air mass sensor 8 is arranged in the exhaust tract 2 between the pump 7 and the burner 6. The measurement signals of the sensor 8 are processed directly in the combined control device 12 and power electronics 13.
- a turbocharger 14 is arranged between the intake tract 2 and the exhaust tract
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009058714 | 2009-12-17 | ||
| DE102010021753.0A DE102010021753B4 (de) | 2009-12-17 | 2010-05-27 | Regeneration von Partikelfiltern |
| PCT/EP2010/007593 WO2011082769A1 (de) | 2009-12-17 | 2010-12-14 | Regeneration von partikelfiltern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2513437A1 true EP2513437A1 (de) | 2012-10-24 |
Family
ID=43618722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10800701A Withdrawn EP2513437A1 (de) | 2009-12-17 | 2010-12-14 | Regeneration von partikelfiltern |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2513437A1 (de) |
| DE (1) | DE102010021753B4 (de) |
| WO (1) | WO2011082769A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019134345B3 (de) * | 2019-12-13 | 2021-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren für einen Abgastrakt eines Kraftfahrzeugs |
| DE102022214199A1 (de) | 2022-12-21 | 2024-06-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Betreiben einer Anlage zur Zuführung von Luft zu einem Brenner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207057A (en) * | 1991-05-16 | 1993-05-04 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device for an engine |
| WO2006089780A1 (de) * | 2005-02-24 | 2006-08-31 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Frischgasversorgungseinrichtung für eine turboaufgeladene kolbenbrennkraftmaschine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621552B2 (ja) * | 1989-02-13 | 1994-03-23 | いすゞ自動車株式会社 | パティキュレートトラップの再燃焼装置 |
| DE4447286A1 (de) * | 1994-12-30 | 1996-07-04 | Eberspaecher J | Fahrzeugheizgerät mit geregeltem Verbrennungsluftgebläse |
| US7741127B2 (en) * | 2001-08-06 | 2010-06-22 | Southwest Research Institute | Method for producing diesel exhaust with particulate material for testing diesel engine aftertreatment devices |
| US9140159B2 (en) * | 2007-09-18 | 2015-09-22 | Eugene V. Gonze | High exhaust temperature, zoned, electrically-heated particulate matter filter |
| DE102008032601A1 (de) * | 2008-07-11 | 2010-01-14 | Volkswagen Ag | Verfahren zum Einstellen eines Zustandes eines Abgasstroms einer Brennkraftmaschine eines Kraftfahrzeuges |
| US20110183274A1 (en) * | 2008-08-26 | 2011-07-28 | Michael Bahn | Producing ageing gas for exhaust gas after-treatment systems |
| DE102009003738A1 (de) * | 2009-04-03 | 2010-10-07 | Hjs Fahrzeugtechnik Gmbh & Co. Kg | Abgasreinigungsanlage sowie Verfahren zum Zuführen von thermischer Energie zum Auslösen und/oder Unterstützen eines in einer Abgasreinigungsanlage ablaufenden Prozesses |
-
2010
- 2010-05-27 DE DE102010021753.0A patent/DE102010021753B4/de not_active Expired - Fee Related
- 2010-12-14 EP EP10800701A patent/EP2513437A1/de not_active Withdrawn
- 2010-12-14 WO PCT/EP2010/007593 patent/WO2011082769A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207057A (en) * | 1991-05-16 | 1993-05-04 | Toyota Jidosha Kabushiki Kaisha | Air-fuel ratio control device for an engine |
| WO2006089780A1 (de) * | 2005-02-24 | 2006-08-31 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Frischgasversorgungseinrichtung für eine turboaufgeladene kolbenbrennkraftmaschine |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2011082769A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011082769A1 (de) | 2011-07-14 |
| DE102010021753B4 (de) | 2016-02-04 |
| DE102010021753A1 (de) | 2011-06-22 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20120606 |
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| AK | Designated contracting states |
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| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20151130 |
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| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01N 3/025 20060101ALI20180508BHEP Ipc: F01N 3/32 20060101AFI20180508BHEP Ipc: F01N 3/023 20060101ALI20180508BHEP |
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| INTG | Intention to grant announced |
Effective date: 20180614 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20181025 |