DE102017116405A1 - Method for determining the loading of a particulate filter with ash - Google Patents
Method for determining the loading of a particulate filter with ash Download PDFInfo
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- DE102017116405A1 DE102017116405A1 DE102017116405.7A DE102017116405A DE102017116405A1 DE 102017116405 A1 DE102017116405 A1 DE 102017116405A1 DE 102017116405 A DE102017116405 A DE 102017116405A DE 102017116405 A1 DE102017116405 A1 DE 102017116405A1
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- 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
- F01N3/033—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 in combination with other devices
- F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/04—Filtering activity of particulate filters
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- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
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- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/16—Oxygen
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- 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
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1606—Particle filter loading or soot amount
-
- 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
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1611—Particle filter ash amount
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Die Erfindung betrifft Verfahren zum Bestimmen der Beladung eines Partikelfilters mit Asche und ein Steuergerät für die Durchführung eines solchen Verfahrens. Das erfindungsgemäße Verfahren zum Bestimmen der Beladung eines Partikelfilters mit Asche, wobei der Partikelfilter eine Sauerstoff speichernde katalytische Beschichtung aufweist, umfasst den Schritt, dass die Entladezeit bestimmt wird, in der der im Partikelfilter zuvor gespeicherte Sauerstoff entladen wird, und anhand der Entladezeit die Beladung mit Asche bestimmt wird.The invention relates to methods for determining the loading of a particulate filter with ash and a control device for carrying out such a method. The method according to the invention for determining the loading of a particle filter with ash, wherein the particle filter has an oxygen-storing catalytic coating, comprises the step of determining the discharge time in which the oxygen previously stored in the particle filter is discharged, and the charge on the basis of the discharge time Ash is determined.
Description
Die Erfindung betrifft Verfahren zum Bestimmen der Beladung eines Partikelfilters mit Asche und ein Steuergerät für die Durchführung eines solchen Verfahrens. The invention relates to methods for determining the loading of a particulate filter with ash and a control device for carrying out such a method.
Die
Das erfindungsgemäße Verfahren zum Bestimmen der Beladung eines Partikelfilters mit Asche, wobei der Partikelfilter eine Sauerstoff speichernde katalytische Beschichtung aufweist, umfasst den Schritt, dass die Entladezeit bestimmt wird, in der der im Partikelfilter zuvor gespeicherte Sauerstoff entladen wird, und anhand der Entladezeit die Beladung mit Asche bestimmt wird. The method according to the invention for determining the loading of a particle filter with ash, wherein the particle filter has an oxygen-storing catalytic coating, comprises the step of determining the discharge time in which the oxygen previously stored in the particle filter is discharged, and the charge on the basis of the discharge time Ash is determined.
Im Rahmen der Erfindung wurde erkannt, dass eine Beladung mit Asche Auswirkungen auf die Entladezeit des Partikelfilters hat. Damit eignet sich eine Messung der Entladezeit, die Aschebeladung zu bestimmen. Die Beladung mit Asche kann die Bestimmung einer Beladung des Partikelfilters mit Ruß beeinflussen. Möglicher Vorteil der Erfindung ist daher, dass die bestimmte Aschebeladung bei der Bestimmung einer Rußbeladung berücksichtigt werden kann, um eine Regenerationsstrategie für den Partikelfilter zu verbessern, beispielsweise dadurch, dass der Zeitpunkt einer Regeneration des Partikelfilters genauer ermittelt werden kann. Ein weiterer möglicher Vorteil ist, den Wert für die Aschebeladung für Diagnosezwecke zu verwenden, beispielsweise für die Ermittlung des Zustands des Partikelfilters. In the context of the invention it has been recognized that loading with ash has an effect on the discharge time of the particulate filter. This makes it possible to measure the discharge time to determine the ash load. The ash loading may affect the determination of particulate filter loading with soot. A possible advantage of the invention is therefore that the determined ash charge can be taken into account in the determination of a soot load in order to improve a regeneration strategy for the particulate filter, for example by the fact that the time of regeneration of the particulate filter can be determined more accurately. Another possible advantage is to use the value for the ash charge for diagnostic purposes, for example for determining the state of the particulate filter.
Die Asche besteht in der Regel aus Verbrennungsrückständen von Öl, der Ruß entsteht aus Rückständen der Verbrennung von Treibstoff. Bei dem Partikelfilter handelt es sich vorzugsweise um einen Partikelfilter für den Einsatz in Abgasnachbehandlungssystemen für Ottomotoren. Besonders bevorzugt ist, dass der Partikelfilter Teil eines Vier-Wege-Katalysators ist. Der Partikelfilter ermöglicht aufgrund der katalytischen Beschichtung, dass auf einen zusätzlichen Katalysator möglicherweise verzichtet werden kann, was ermöglicht, den Bedarf an Bauraum zu reduzieren. Bei der Beschichtung kann es sich um für derartige Partikelfilter üblicherweise eingesetzte Beschichtungen basierend auf Aluminiumoxiden oder Ceroxiden handeln. Ashes usually consist of combustion residues of oil, and soot is the result of fuel combustion. The particulate filter is preferably a particulate filter for use in exhaust aftertreatment systems for gasoline engines. It is particularly preferred that the particle filter is part of a four-way catalyst. Due to the catalytic coating, the particulate filter makes it possible to dispense with an additional catalyst, which makes it possible to reduce the space requirement. The coating can be coatings typically used for such particulate filters based on aluminum oxides or cerium oxides.
Vorteilhafterweise wird die Entladezeit anhand eines Lambda-Sprungs in Flussrichtung eines Abgases stromabwärts des Partikelfilters bestimmt. Die Entladezeit gibt die Zeit an, in der der mit Sauerstoff teilweise oder vollständig beladene Partikelfilter zumindest teilweise entladen wird. Dazu wird vorteilhafterweise eine üblicherweise bereits im Abgasnachbehandlungssystem vorgesehene Lambdasonde eingesetzt, zusätzliche Sensorik ist damit nicht notwendig. Die Entladezeit kann durch den Zeitraum zwischen verschiedenen Punkten bestimmt werden, beispielsweise zwischen dem Beginn der Entladung und dem Einsatz des Sprungs oder an einer Flanke des Sprungs. Die so gemessene Entladezeit kann mit einem Referenzwert verglichen werden. Das Ergebnis des Vergleichs ermöglicht einen Rückschluss auf die Beladung mit Asche. Advantageously, the discharge time is determined based on a lambda jump in the flow direction of an exhaust gas downstream of the particulate filter. The discharge time indicates the time during which the partially or completely charged particle filter is at least partially discharged. For this purpose, a lambda probe, which is usually already provided in the exhaust aftertreatment system, is advantageously used; additional sensor technology is therefore not necessary. Discharge time may be determined by the time period between different points, for example between the beginning of the discharge and the application of the jump or on an edge of the jump. The discharge time measured in this way can be compared with a reference value. The result of the comparison allows a conclusion on the loading of ash.
Das erfindungsgemäße Steuergerät für ein Kraftfahrzeug mit einem Verbrennungsmotor ist eingerichtet, ein Verfahren nach einem der vorhergehenden Ansprüche durchzuführen. The control device according to the invention for a motor vehicle with an internal combustion engine is set up to carry out a method according to one of the preceding claims.
Die abhängigen Ansprüche beschreiben weitere vorteilhafte Ausführungsformen der Erfindung. The dependent claims describe further advantageous embodiments of the invention.
Bevorzugte Ausführungsbeispiele werden anhand der folgenden Figuren näher erläutert. Dabei zeigt Preferred embodiments will be explained in more detail with reference to the following figures. It shows
Die
Gemäß einem Ausführungsbeispiel eines erfindungsgemäßen Verfahrens wird die Entladezeit bestimmt, in der der im Partikelfilter zuvor gespeicherte Sauerstoff entladen wird. Anhand der Entladezeit wird die Beladung mit Asche bestimmt. Das Verfahren wird durch das Steuergerät
Verfahrensgemäß geht der Entladung eine Regeneration des Partikelfilters, also eine Verbrennung des sich im Partikelfilter befindenden Rußes, und eine Beladung des Partikelfilters mit Sauerstoff voraus. Die Beladung erfolgt durch den Betrieb mit einem sauerstoffreichen Gemisch (Lambda > 1). Im Betrieb kann dies beispielsweise während eines Leerlaufs des Verbrennungsmotors, beispielsweise während einer Abfahrt, erfolgen. Ist die sauerstoffspeichernde Beschichtung mit Sauerstoff beladen, vorzugsweise vollständig beladen, erfolgt in einem zeitlich nachfolgenden Schritt die Entladung des Partikelfilters. Hierzu erfolgt der Betrieb mit einem sauerstoffarmen, also kraftstoffreichen Gemisch (Lambda < 1). Solange im Partikelfilter gespeicherter Sauerstoff mit dem kraftstoffreichen Gemisch reagieren kann, bleibt der stromabwärts des Lambdasensors gemessene Lambdawert erhöht, siehe
In diesem Falle wird die Aschebeladung anhand einer Tabelle bestimmt, die für unterschiedliche Entladezeiten einen Wert für die Aschebeladung angibt. Die Tabellenwerte wurden zuvor über ein Modell oder über Referenzmessungen bestimmt. Ein weiteres Beispiel ist, die Aschebeladung anhand eines Modells zu bestimmen, in dem die Entladezeit als Parameter eingeht. In this case, the ash load is determined from a table that indicates a value for the ash load for different discharge times. The table values were previously determined via a model or via reference measurements. Another example is to determine the ash load using a model in which the discharge time is taken as a parameter.
Die bestimmte Aschebeladung wird vorzugsweise bei der Bestimmung einer Rußbeladung des Partikelfilters verwendet. Alternativ oder zusätzlich ist es möglich, die Aschebeladung für die Bestimmung einer Sauerstoffspeicherfähigkeit des Partikelfilters, insbesondere einer Verschlechterung der Sauerstoffspeicherfähigkeit, oder für Diagnosezwecke zu verwenden. The particular ash charge is preferably used in determining soot loading of the particulate filter. Alternatively or additionally, it is possible to use the ash charge for the determination of an oxygen storage capacity of the particulate filter, in particular a deterioration of the oxygen storage capacity, or for diagnostic purposes.
In einer bevorzugten Ausführungsform wird bei der Bestimmung der Aschebeladung eine Alterung des Partikelfilters berücksichtigt. Dies kann beispielsweise über eine Tabelle oder ein Modell erfolgen. Dazu können auf an sich bekannte Verfahren zur Bestimmung der Alterung zurückgegriffen werden. In a preferred embodiment, an aging of the particulate filter is taken into account in the determination of the ash charge. This can be done for example via a table or a model. For this purpose, recourse can be had to methods known per se for determining the aging.
Des Weiteren ist es möglich, die Aschebeladung zusätzlich über mindestens ein weiteres, vom Ansatz her unterschiedliches Verfahren zu bestimmen. In Frage kommen beispielsweise eine Bestimmung der Aschebeladung über eine Differenzdruckmessung über den Filter, über die Berücksichtigung des Ölverbrauchs, oder über ein Verfahren, dass auf Mikrowellen basiert. Dies ermöglicht es, durch Mittelwertbildung oder durch Ausschluss von Ergebnissen, die außerhalb eines Toleranzbandes liegen, die Genauigkeit der Bestimmung der Aschebeladung zu erhöhen und damit beispielsweise Regenerationsstrategien zu optimieren. Furthermore, it is possible to additionally determine the ash charge by means of at least one further process, which is different from the batch. For example, a determination of the ash charge via a differential pressure measurement over the filter, on the consideration of the oil consumption, or a method that is based on microwaves come into question. This makes it possible to increase the accuracy of the determination of the ash charge by averaging or by excluding results which are outside of a tolerance band, and thus to optimize regeneration strategies, for example.
Ebenfalls ist es möglich, falls die so bestimmte Aschebeladung bei der Bestimmung einer Sauerstoffspeicherfähigkeit berücksichtigt wurde, das Ergebnis mit mit dem Ergebnis anderer Methoden für die Bestimmung der Sauerstoffspeicherfähigkeit zu vergleichen und/oder zu kombinieren. It is also possible, if the thus determined ash charge was taken into account in the determination of an oxygen storage capacity, to compare and / or combine the result with the result of other methods for determining the oxygen storage capacity.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.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.
Zitierte PatentliteraturCited patent literature
- WO 2014178633 A1 [0002] WO 2014178633 A1 [0002]
- WO 2017109514 A1 [0002] WO 2017109514 A1 [0002]
- DE 102014209810 A1 [0002] DE 102014209810 A1 [0002]
- JP 2016136011 A [0002] JP 2016136011 A [0002]
- US 20170182447 A1 [0002] US 20170182447 A1 [0002]
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE102017116405.7A DE102017116405A1 (en) | 2017-07-20 | 2017-07-20 | Method for determining the loading of a particulate filter with ash |
DE102018116870.5A DE102018116870A1 (en) | 2017-07-20 | 2018-07-12 | Method for determining the loading of a particulate filter with ash |
CN201810788841.1A CN109281735A (en) | 2017-07-20 | 2018-07-18 | Method for determining the dust load of particulate filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017116405.7A DE102017116405A1 (en) | 2017-07-20 | 2017-07-20 | Method for determining the loading of a particulate filter with ash |
Publications (1)
Publication Number | Publication Date |
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DE102017116405A1 true DE102017116405A1 (en) | 2017-10-26 |
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DE102017116405.7A Withdrawn DE102017116405A1 (en) | 2017-07-20 | 2017-07-20 | Method for determining the loading of a particulate filter with ash |
DE102018116870.5A Pending DE102018116870A1 (en) | 2017-07-20 | 2018-07-12 | Method for determining the loading of a particulate filter with ash |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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DE102018116870.5A Pending DE102018116870A1 (en) | 2017-07-20 | 2018-07-12 | Method for determining the loading of a particulate filter with ash |
Country Status (2)
Country | Link |
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CN (1) | CN109281735A (en) |
DE (2) | DE102017116405A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019086333A1 (en) * | 2017-10-30 | 2019-05-09 | Volkswagen Aktiengesellschaft | Method for operating an exhaust gas system |
WO2019214771A1 (en) | 2018-05-09 | 2019-11-14 | Bayerische Motoren Werke Aktiengesellschaft | Determination of an ash loading of a particulate filter for an internal combustion engine |
DE102018010415B3 (en) | 2018-05-09 | 2021-11-04 | Bayerische Motoren Werke Aktiengesellschaft | Determining an ash load in a particulate filter for an internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112727581B (en) * | 2020-10-30 | 2022-03-15 | 联合汽车电子有限公司 | Method for calculating content of particles in particle catcher |
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WO2014178633A1 (en) | 2013-05-02 | 2014-11-06 | 희성촉매 주식회사 | Gasoline particulate filter for gasoline direct injection engine |
DE102014209810A1 (en) | 2014-05-22 | 2015-11-26 | Robert Bosch Gmbh | Method and device for detecting a soot and ash charge of a particulate filter |
JP2016136011A (en) | 2015-01-23 | 2016-07-28 | 株式会社デンソー | Control device of internal combustion engine |
WO2017109514A1 (en) | 2015-12-24 | 2017-06-29 | Johnson Matthey Public Limited Company | Gasoline particulate filter |
US20170182447A1 (en) | 2015-06-08 | 2017-06-29 | Cts Corporation | Radio Frequency Process Sensing, Control, and Diagnostics Network and System |
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DE102006025050B4 (en) * | 2006-05-27 | 2014-04-03 | Fev Gmbh | Method and device for operating an exhaust aftertreatment system |
US9091190B2 (en) * | 2012-08-01 | 2015-07-28 | GM Global Technology Operations LLC | Accumulated ash correction during soot mass estimation in a vehicle exhaust aftertreatment device |
DE102014204682A1 (en) * | 2014-03-13 | 2015-10-01 | Umicore Ag & Co. Kg | Catalyst system for reducing noxious gases from gasoline internal combustion engines |
DE102015212514B4 (en) * | 2015-07-03 | 2024-03-07 | Volkswagen Aktiengesellschaft | Method for exhaust gas aftertreatment and device for cleaning the exhaust gas of an internal combustion engine |
DE102015219777B4 (en) * | 2015-10-13 | 2020-01-23 | Continental Automotive Gmbh | Exhaust treatment of an internal combustion engine |
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2017
- 2017-07-20 DE DE102017116405.7A patent/DE102017116405A1/en not_active Withdrawn
-
2018
- 2018-07-12 DE DE102018116870.5A patent/DE102018116870A1/en active Pending
- 2018-07-18 CN CN201810788841.1A patent/CN109281735A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2014178633A1 (en) | 2013-05-02 | 2014-11-06 | 희성촉매 주식회사 | Gasoline particulate filter for gasoline direct injection engine |
DE102014209810A1 (en) | 2014-05-22 | 2015-11-26 | Robert Bosch Gmbh | Method and device for detecting a soot and ash charge of a particulate filter |
JP2016136011A (en) | 2015-01-23 | 2016-07-28 | 株式会社デンソー | Control device of internal combustion engine |
US20170182447A1 (en) | 2015-06-08 | 2017-06-29 | Cts Corporation | Radio Frequency Process Sensing, Control, and Diagnostics Network and System |
WO2017109514A1 (en) | 2015-12-24 | 2017-06-29 | Johnson Matthey Public Limited Company | Gasoline particulate filter |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019086333A1 (en) * | 2017-10-30 | 2019-05-09 | Volkswagen Aktiengesellschaft | Method for operating an exhaust gas system |
WO2019214771A1 (en) | 2018-05-09 | 2019-11-14 | Bayerische Motoren Werke Aktiengesellschaft | Determination of an ash loading of a particulate filter for an internal combustion engine |
DE102018207227A1 (en) * | 2018-05-09 | 2019-11-14 | Bayerische Motoren Werke Aktiengesellschaft | Determining an ash charge of a particulate filter for an internal combustion engine |
DE102018207227B4 (en) | 2018-05-09 | 2021-10-07 | Bayerische Motoren Werke Aktiengesellschaft | Determining an ash load in a particulate filter for an internal combustion engine |
DE102018010415B3 (en) | 2018-05-09 | 2021-11-04 | Bayerische Motoren Werke Aktiengesellschaft | Determining an ash load in a particulate filter for an internal combustion engine |
US11268425B2 (en) | 2018-05-09 | 2022-03-08 | Bayerische Motoren Werke Aktiengesellschaft | Determination of an ash loading of a particulate filter for an internal combustion engine |
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