DE102015215928A1 - Method for optimizing the emission reduction strategy - Google Patents
Method for optimizing the emission reduction strategy Download PDFInfo
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- DE102015215928A1 DE102015215928A1 DE102015215928.0A DE102015215928A DE102015215928A1 DE 102015215928 A1 DE102015215928 A1 DE 102015215928A1 DE 102015215928 A DE102015215928 A DE 102015215928A DE 102015215928 A1 DE102015215928 A1 DE 102015215928A1
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- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
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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
- F01N3/08—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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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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
- F01N3/08—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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
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- 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
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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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
- F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
- F01N2900/102—Travelling distance
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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
- F01N2900/12—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle exterior
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- 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
- F02D2200/021—Engine temperature
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- 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
- F02D2200/70—Input parameters for engine control said parameters being related to the vehicle exterior
- F02D2200/701—Information about vehicle position, e.g. from navigation system or GPS signal
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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
- Y02T10/12—Improving ICE efficiencies
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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)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Optimierung der Emissionsreduktionsstrategie eines Kraftfahrzeugs mit einem Navigationssystem, welches über ein System zur Abgasrückführung (AGR) sowie ein System zur selektiven katalytischen Reduktion (SCR) verfügt. Dabei umfasst das Verfahren die folgenden Schritte. Zunächst wird eine Fahrtstrecke in dem Navigationssystem festgelegt (10) und nachfolgend werden das Systems zur Abgasrückführung (AGR) und das Systems zur selektiven katalytischen Reduktion (SCR) in Abhängigkeit von streckenbasierten Informationen angesteuert (14).The invention relates to a method for optimizing the emission reduction strategy of a motor vehicle having a navigation system which has an exhaust gas recirculation (EGR) system and a selective catalytic reduction (SCR) system. The method comprises the following steps. First, a route is set in the navigation system (10), and subsequently the exhaust gas recirculation (EGR) system and the selective catalytic reduction (SCR) system are driven in response to distance-based information (14).
Description
Die Erfindung betrifft ein Verfahren zur Optimierung der Emissionsreduktion eines Kraftfahrzeugs mit einem Navigationssystem. Ferner betrifft die Erfindung ein Computerprogramm, das jeden Schritt des erfindungsgemäßen Verfahrens ausführt, wenn es auf einem Rechengerät abläuft, sowie ein maschinenlesbares Speichermedium, welches das Computerprogramm speichert. Schließlich betrifft die Erfindung ein elektronisches Steuergerät, welches eingerichtet ist, um das erfindungsgemäße Verfahren auszuführen.The invention relates to a method for optimizing the emission reduction of a motor vehicle with a navigation system. Furthermore, the invention relates to a computer program, which executes each step of the method according to the invention, when it runs on a computing device, as well as a machine-readable storage medium, which stores the computer program. Finally, the invention relates to an electronic control device which is set up to carry out the method according to the invention.
Stand der TechnikState of the art
In Kraftfahrzeugen werden heutzutage verschiedene Systeme eingesetzt, um eine Reduktion von Emissionen zu erreichen. Zum einen werden sogenannte SCR-Katalysatoren (selektive katalytische Reduktion) eingesetzt, um den Gehalt von Stickoxiden im Abgas von Brennkraftmaschinen zu verringern. Die SCR-Katalysatoren sind im Abgasbereich einer Brennkraftmaschine angeordnet und reduzieren die im Abgas der Brennkraftmaschine enthaltenen Stickoxide (NOx) in Gegenwart eines Reduktionsmittels zu Stickstoff. In motor vehicles, various systems are used today to achieve a reduction of emissions. On the one hand, so-called SCR catalysts (selective catalytic reduction) are used to reduce the content of nitrogen oxides in the exhaust gas of internal combustion engines. The SCR catalysts are arranged in the exhaust region of an internal combustion engine and reduce the nitrogen oxides (NOx) contained in the exhaust gas of the internal combustion engine in the presence of a reducing agent to nitrogen.
Ein weiteres Mittel zur Reduktion von Stickoxidemissionen ist die sogenannte Abgasrückführung (AGR). Bei diesem Verfahren wird Abgas der der Brennkraftmaschine zugeführten Frischluft hinzugemischt. Dieses Inertgas führt zu einer Verminderung des Sauerstoffeintrags und durch seine Wärmekapazität zu einer Verringerung der Spitzentemperatur bei der Verbrennung. Insgesamt wird so eine Verminderung der Stickoxidemission erreicht.Another means of reducing nitrogen oxide emissions is the so-called exhaust gas recirculation (EGR). In this method, exhaust gas of the internal combustion engine supplied fresh air is added. This inert gas leads to a reduction in the oxygen input and by its heat capacity to a reduction in the peak temperature during combustion. Overall, a reduction of nitrogen oxide emissions is achieved.
Aus der
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Verfahren zur Optimierung der Emissionsreduktionsstrategie eines Kraftfahrzeugs mit einem Navigationssystem, welches über ein System zur Abgasrückführung (AGR) sowie ein System zur selektiven katalytischen Reduktion (SCR) verfügt, umfasst die folgenden Schritte: Zunächst wird eine Fahrtstrecke in dem Navigationssystem festgelegt. Das System zur Abgasrückführung (AGR) sowie das System zur selektiven katalytischen Reduktion (SCR) werden sodann in Abhängigkeit von streckenbasierten Informationen angesteuert. Durch dieses Verfahren ist eine für die festgelegte Strecke optimierte Ansteuerung beider Systeme in Abhängigkeit von streckenbasierten Informationen möglich, was zu einer optimalen Umsetzung von Stickoxiden (NOx) führt.The method according to the invention for optimizing the emission reduction strategy of a motor vehicle with a navigation system which has an exhaust gas recirculation (EGR) system and a selective catalytic reduction (SCR) system comprises the following steps: First, a travel route is defined in the navigation system. The exhaust gas recirculation (EGR) system and the selective catalytic reduction (SCR) system are then activated in response to distance-based information. This method enables optimized control of both systems as a function of distance-based information, which leads to optimal conversion of nitrogen oxides (NOx).
Bevorzugterweise werden die streckenbasierten Informationen aus einer CLOUD bezogen. Auf diese Weise ist es möglich, auf einfache Weise auf eine sehr große aktuelle, die Fahrtstrecke charakterisierende, Datenmenge zuzugreifen.Preferably, the distance-based information is obtained from a CLOUD. In this way, it is possible to easily access a very large current amount of data characterizing the route.
Insbesondere sind die streckenbasierten Informationen aus der CLOUD mindestens eine der folgenden: Geschwindigkeitsbegrenzungen entlang der Strecke, Art der Strecke, Höhenverlauf der Strecke, Länge der Strecke, Dauer der Strecke, Beschleunigungs- und/oder Abbremspunkte entlang der Strecke, Temperatur- und Umgebungsbedingungsänderungen entlang der Strecke. Es ist besonders vorteilhaft, mehrere Informationen, die die Fahrtstrecke beschreiben, zu verwenden, da auf diese Weise die Fahrtstrecke genauer charakterisiert werden kann. In particular, the distance-based information from the CLOUD is at least one of the following: speed limits along the route, type of route, elevation of the route, length of the route, duration of the route, acceleration and / or deceleration points along the route, temperature and environmental changes along the route Route. It is particularly advantageous to use a plurality of information describing the route, since in this way the route can be characterized more accurately.
Gemäß einer Ausführungsform der Erfindung werden in Abhängigkeit von einer Motorlast und einer Fahrzeuggeschwindigkeit entweder das System zur Abgasrückführung (AGR) oder das Systems zur selektiven katalytischen Reduktion (SCR) oder beide Systeme genutzt. Auf diese Weise werden die beiden verschiedenen Systeme in Abhängigkeit von der Fahrtstrecke so verwendet, dass sie am effektivsten arbeiten und eine Optimierung der Umsetzung von Stickoxiden erreicht wird.According to an embodiment of the invention, either the exhaust gas recirculation (EGR) system or the selective catalytic reduction (SCR) system or both systems are utilized depending on engine load and vehicle speed. In this way, the two different systems depending on the route are used so that they work most effectively and an optimization of the implementation of nitrogen oxides is achieved.
Bei erhöhter Motorlast und erhöhter Motortemperatur wird insbesondere das System zur selektiven katalytischen Reduktion (SCR) aktiviert und die Raten des Systems zur Abgasrückführung (AGR) werden reduziert. So wird vorteilhafterweise nicht nur die Umsetzung von Stickoxiden optimiert, sondern auch die Effizienz des Kraftstoffs gesteigert. Dabei wird hier unter der Effizienz des Kraftstoffs die Effizienz der Kraftstoffausnutzung verstanden. Eine erhöhte Motorlast sowie eine erhöhte Motortemperatur sind für die Durchführung der selektiven katalytischen Reduktion geeignet, so dass die Umsetzung von Stickoxiden optimiert wird. Des Weiteren werden die Raten des Systems zur Abgasrückführung (AGR) reduziert, um die Kraftstoffeffizienz zu steigern. In particular, with increased engine load and engine temperature, the selective catalytic reduction (SCR) system is activated and the rates of the exhaust gas recirculation (EGR) system are reduced. Thus, not only the implementation of nitrogen oxides is advantageously optimized, but also increases the efficiency of the fuel. Here, the efficiency of the fuel is understood as the efficiency of fuel utilization. An increased engine load as well as an increased engine temperature are suitable for carrying out the selective catalytic reduction, so that the conversion of nitrogen oxides is optimized. Furthermore, the rates of the exhaust gas recirculation (EGR) system are reduced to increase fuel efficiency.
Bei reduzierter Motorlast und reduzierter Motortemperatur wird vorzugsweise das System zur Abgasrückführung (AGR) aktiviert und die Dosierraten des Systems zur selektiven katalytischen Reduktion (SCR) werden reduziert. Hierdurch wird die Umsetzung von Stickoxiden optimiert. Eine reduzierte Motorlast und eine reduzierte Motortemperatur sind gut geeignet für die Durchführung der Abgasrückführung (AGR), wobei allerdings die Dosierraten der selektiven katalytischen Reduktion (SCR) reduziert werden, um eine Verbesserung der Umsetzung von Stickoxiden zu erreichen. Die Umsetzung von Stickoxiden wird optimiert, wobei sich die Kraftstoffeffizienz jedoch verschlechtert.With reduced engine load and reduced engine temperature, it is preferable to activate the exhaust gas recirculation (EGR) system and reduce the metering rates of the selective catalytic reduction (SCR) system. This optimizes the conversion of nitrogen oxides. A reduced Engine load and reduced engine temperature are well suited for performing exhaust gas recirculation (EGR), however, reducing selective catalytic reduction (SCR) metering rates to improve nitrogen oxide conversion. The conversion of nitrogen oxides is optimized, but the fuel efficiency deteriorates.
Bei einem Kaltstart und einer erhöhten Motortemperatur wird insbesondere das System zur Abgasrückführung (AGR) aktiviert und die Dosierraten des Systems zur selektiven katalytischen Reduktion (SCR) werden erhöht. Wenn bei einem Kaltstart des Kraftfahrzeugs eine minimale Temperaturerhöhung stattfindet und die Beschaffenheit der voraus liegenden Fahrtstrecke zu einer minimalen Erhöhung der Kraftfahrzeuggeschwindigkeit führt, so resultiert dies in einer reduzierten Motorlast und einer reduzierten Motortemperatur. Eine niedrige Motorlast und eine niedrige Temperatur sind wiederum geeignet für die Durchführung der Abgasrückführung (AGR). Gleichzeitig werden die Dosierraten der selektiven katalytischen Reduktion (SCR) erhöht, wenn die Temperatur zunimmt, um die verbleibenden Stickoxide zu entfernen. Somit wird eine optimierte Umsetzung der Stickoxide erreicht, während die Effizienz des Kraftstoffs abnimmt.In particular, in the case of a cold start and an increased engine temperature, the exhaust gas recirculation (EGR) system is activated and the metering rates of the selective catalytic reduction (SCR) system are increased. If a minimum increase in temperature takes place during a cold start of the motor vehicle and the nature of the route ahead leads to a minimal increase in the motor vehicle speed, this results in a reduced engine load and a reduced engine temperature. Low engine load and low temperature are again suitable for performing exhaust gas recirculation (EGR). At the same time, the selective catalytic reduction (SCR) dosing rates are increased as the temperature increases to remove the remaining nitrogen oxides. Thus, an optimized conversion of the nitrogen oxides is achieved while the efficiency of the fuel decreases.
Bei einem Warmstart und einer anhaltenden erhöhten Motortemperatur wird vorzugsweise das System zur selektiven katalytischen Reduktion (SCR) aktiviert und die Raten des Systems zur Abgasrückführung (AGR) werden reduziert. Eine erhöhte Motorlast und eine erhöhte Motortemperatur sind sehr geeignet, um die selektive katalytische Reduktion (SCR) durchzuführen. Gleichzeitig werden die Raten des Systems zur Abgasrückführung (AGR) reduziert. Hierdurch wird vorteilhafterweise eine optimale Umsetzung der Stickoxide und eine optimale Kraftstoffeffizienz erreicht.With a warm start and a sustained elevated engine temperature, it is preferable to activate the selective catalytic reduction (SCR) system and reduce the rates of the exhaust gas recirculation (EGR) system. Increased engine load and engine temperature are very suitable for performing Selective Catalytic Reduction (SCR). At the same time, the rates of the exhaust gas recirculation (EGR) system are reduced. As a result, an optimal implementation of the nitrogen oxides and optimum fuel efficiency is advantageously achieved.
Bei einer Teillast des Motors, und einer mittleren Fahrzeuggeschwindigkeit werden insbesondere sowohl das System zur selektiven katalytischen Reduktion (SCR) als auch das System zur Abgasrückführung (AGR) aktiviert. Dieses Vorgehen führt vorteilhafter Weise zu einer optimalen Umsetzung von Stickoxiden und zusätzlich zu einer optimalen Kraftstoffeinsparung. At a partial load of the engine, and an average vehicle speed, both the selective catalytic reduction (SCR) system and the exhaust gas recirculation (EGR) system are activated. This procedure advantageously leads to optimum conversion of nitrogen oxides and in addition to optimal fuel economy.
Die Erfindung umfasst weiterhin ein Computerprogramm, welches eingerichtet ist jeden Schritt des erfindungsgemäßen Verfahrens durchzuführen, insbesondere wenn es auf einem Rechengerät oder elektronischen Steuergerät ausgeführt wird. Es ermöglicht die Implementierung des erfindungsgemäßen Verfahrens auf einem elektronischen Steuergerät, ohne hieran bauliche Veränderungen vornehmen zu müssen. The invention further comprises a computer program which is set up to carry out each step of the method according to the invention, in particular if it is executed on a computing device or electronic control device. It allows the implementation of the method according to the invention on an electronic control unit, without having to make any structural changes thereto.
Die Erfindung umfasst außerdem ein maschinenlesbares Speichermedium, auf welchem das Computerprogramm gespeichert ist, sowie ein elektronisches Steuergerät, welches eingerichtet ist, das erfindungsgemäße Verfahren durchzuführen. The invention also comprises a machine-readable storage medium on which the computer program is stored, and an electronic control unit which is set up to carry out the method according to the invention.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen in Verbindung mit den Zeichnungen. Hierbei können die einzelnen Merkmale jeweils für sich oder in Kombination miteinander verwirklicht sein.Further advantages and features of the invention will become apparent from the following description of embodiments in conjunction with the drawings. In this case, the individual features can be implemented individually or in combination with each other.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
In den Zeichnungen zeigen:In the drawings show:
Ausführungsbeispiele embodiments
In
In
In einer Ausführungsform der Erfindung wird bei erhöhter Motorlast und erhöhter Motortemperatur in Schritt
In einer weiteren Ausführungsform der Erfindung wird bei reduzierter Motorlast und reduzierter Motortemperatur in Schritt
Bei einem Kaltstart des Motors des Kraftfahrzeugs
Bei einem Warmstart des Motors des Kraftfahrzeugs
Bei einer Teillast des Motors des Kraftfahrzeugs
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
- DE 102013200505 A1 [0004] DE 102013200505 A1 [0004]
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018162269A1 (en) * | 2017-03-08 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Control unit for adapting the emission of a vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102013200505A1 (en) | 2013-01-15 | 2014-07-17 | Robert Bosch Gmbh | Method for performing lambda control in internal combustion engine, involves determining navigation preview ahead-lying sections of track, and determining prognosis data for atmospheric oxygen contents for adaptation of lambda control |
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2015
- 2015-08-20 DE DE102015215928.0A patent/DE102015215928A1/en not_active Withdrawn
Patent Citations (1)
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DE102013200505A1 (en) | 2013-01-15 | 2014-07-17 | Robert Bosch Gmbh | Method for performing lambda control in internal combustion engine, involves determining navigation preview ahead-lying sections of track, and determining prognosis data for atmospheric oxygen contents for adaptation of lambda control |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018162269A1 (en) * | 2017-03-08 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Control unit for adapting the emission of a vehicle |
US11085383B2 (en) | 2017-03-08 | 2021-08-10 | Bayerische Motoren Werke Aktiengesellschaft | Control unit for adapting the emission of a vehicle |
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