DE102012111509A1 - Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network - Google Patents
Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network Download PDFInfo
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- DE102012111509A1 DE102012111509A1 DE201210111509 DE102012111509A DE102012111509A1 DE 102012111509 A1 DE102012111509 A1 DE 102012111509A1 DE 201210111509 DE201210111509 DE 201210111509 DE 102012111509 A DE102012111509 A DE 102012111509A DE 102012111509 A1 DE102012111509 A1 DE 102012111509A1
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Steuerung eines Betriebsmodus eines Kraftfahrzeugs mit einem elektrischen Antrieb mit mindestens einer Batterie. Ferner betrifft die vorliegende Erfindung ein Bedienelement und ein entsprechendes Bordnetz mit einem derartigen Bedienelement. The present invention relates to a method for controlling an operating mode of a motor vehicle having an electric drive with at least one battery. Furthermore, the present invention relates to a control element and a corresponding electrical system with such a control element.
Der Begriff "intelligentes Stromnetz" bzw. "Smart Grid" ist zwischenzeitlich im Bereich einer umweltfreundlichen Stromerzeugung wohlbekannt und umfasst eine kommunikative Vernetzung und Steuerung von Stromerzeugern, Speichern und elektrischen Verbrauchern in Energieübertragungs- und Verteilungsnetzen der Elektrizitätsversorgung. Ein Smart Grid soll eine Optimierung und Überwachung miteinander verbundener Bestandteile eines derartigen Energienetzes ermöglichen. Dadurch soll eine effiziente und zuverlässige Energieversorgung erreicht werden. Ein Smart Grid stellt ein Stromnetz dar, in dem Energieeinspeisung und Energieverbrauch koordiniert werden, um eine ausgeglichene Belastung zu erzielen. Eine Eigenschaft eines intelligenten Stromnetzes ist die Möglichkeit, Zustandsinformationen und aktuelle Auslastungen einzelner Netzelemente wie bspw. Erzeugungsanlagen und Verbrauchern in Echtzeit abzurufen und verarbeiten zu können. Eine bislang vorgesehene Auslegung von Energieversorgungsnetzen auf eine mögliche Höchstbelastung führt aufgrund stark schwankender Energieeinspeisung zu einer Stromüberproduktion. Ein Smart Grid soll es nunmehr ermöglichen, bspw. elektronische Haushaltsgeräte dann einzuschalten, wenn besonders viel Strom zur Verfügung steht bzw. wenn der Strom besonders günstig ist. Mit dem Aufbau von intelligenten Stromnetzen soll somit die Stromerzeugung umweltfreundlicher und günstiger werden. The term "smart grid" or "smart grid" is now well known in the field of environmentally friendly power generation and includes a communicative networking and control of power generators, storage and electrical consumers in energy transmission and distribution networks of the electricity supply. A smart grid should enable optimization and monitoring of interconnected components of such a power grid. This is to achieve an efficient and reliable energy supply. A smart grid represents a power grid in which energy supply and energy consumption are coordinated in order to achieve a balanced load. A feature of an intelligent power grid is the ability to retrieve and process state information and current utilization of individual network elements such as generation plants and consumers in real time. A previously planned design of energy supply networks to a possible maximum load leads to over-power production due to strongly fluctuating energy supply. A smart grid should now make it possible, for example, to switch on electronic household appliances when particularly high levels of electricity are available or when the electricity is particularly favorable. With the construction of intelligent power grids, therefore, the generation of electricity to be environmentally friendly and cheaper.
Aus der Druckschrift
Elektrofahrzeuge besitzen in der Regel zwei unabhängige Stromnetze, eines zur Speisung des Antriebsstrangs, d. h. des Elektroantriebs und ein zweites zur Versorgung von Signal- und Sicherheitsvorrichtungen, bspw. von Leuchten und Anzeigen. Electric vehicles usually have two independent power grids, one for powering the powertrain, d. H. of the electric drive and a second for the supply of signaling and safety devices, such as. Lights and displays.
Vor dem Hintergrund des Standes der Technik war es nunmehr eine Aufgabe der vorliegenden Erfindung, eine Möglichkeit vorzusehen, einen einem Kraftfahrzeug mit elektrischem Antrieb zur Verfügung stehenden Energiegehalt möglichst effizient auszunutzen, insbesondere durch eine Rückspeisung von elektrischer Energie in ein externes Energienetz. Against the background of the prior art, it was now an object of the present invention to provide a way to exploit as efficiently as possible an energy content available to a motor vehicle with electric drive, in particular by a return of electrical energy into an external power grid.
Eine Lösung dieser Aufgabe wird durch ein Verfahren mit den Merkmalen von Patentanspruch 1, sowie ein Bedienelement mit den Merkmalen 6 und ein Bordnetz mit den Merkmalen von Patentanspruch 11 bereitgestellt. Weitere Vorteile und Ausgestaltungen der Erfindung sind den jeweiligen Unteransprüchen zu entnehmen. A solution to this problem is provided by a method having the features of
Es wird ein Verfahren zur Steuerung eines Betriebsmodus eines Kraftfahrzeugs mit einem elektrischen Antrieb mit mindestens einer Batterie bereitgestellt. Gemäß dem erfindungsgemäßen Verfahren wird in Abhängigkeit von einem aktuellen Ladezustand der mindestens einen Batterie innerhalb von gegebenen Leistungsgrenzen von einem für den elektrischen Antrieb originär zur Verfügung stehenden und in der mindestens einen Batterie gespeicherten elektrischen Energieanteil ein zu bestimmender erster Anteil für den elektrischen Antrieb zurückgehalten und ein verbleibender zweiter Anteil für eine Einspeisung in ein externes Versorgungsnetz, d. h. für einen externen Verbrauch zur Verfügung gestellt. A method for controlling an operating mode of a motor vehicle having an electric drive with at least one battery is provided. According to the method of the invention, depending on a current state of charge of the at least one battery within given power limits of a for the electric drive originally available and stored in the at least one battery electric energy portion to be determined a first portion for the electric drive and retained remaining second share for feeding into an external supply network, i. H. provided for external consumption.
Gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens wird der erste für den elektrischen Antrieb zurückzuhaltende Anteil dynamisch in Abhängigkeit von einem aktuellen Bedarf an elektrischer Reichweite des Kraftfahrzeugs bestimmt. Das bedeutet, dass bspw. in regelmäßigen Abständen oder gezielt auf eine aktuelle Anfrage eines Nutzers wie bspw. eines Fahrers des Kraftfahrzeugs ein aktueller Bedarf an elektrischer Reichweite des Kraftfahrzeugs bestimmt wird und daran der zurückzuhaltende Energieanteil bemessen wird, um den aktuellen Bedarf decken zu können. Der verbleibende zweite Anteil des in der Batterie für den elektrischen Antrieb originär zur Verfügung stehenden Energieanteils wird sodann in ein externes Versorgungsnetz eingespeist und steht dort dann für externe Verbraucher zur Verfügung. According to one embodiment of the method according to the invention, the first portion to be retained for the electric drive is determined dynamically as a function of a current requirement for the electric range of the motor vehicle. This means that, for example, at regular intervals or targeted to a current request of a user such as a driver of the motor vehicle, a current need for electrical range of the motor vehicle is determined and the amount of energy to be retained is measured to meet the current needs. The remaining second portion of the energy portion originally available in the battery for the electric drive is then fed into an external supply network and is then available there for external consumers.
Gemäß einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird der erste Anteil der in der Batterie für den elektrischen Antrieb originär zur Verfügung stehenden elektrischen Energie durch Ankopplung an einen Terminplaner bzw. einen Terminkalender automatisch nach gemäß Terminkalender anfallendem Bedarf an elektrischer Reichweite des Kraftfahrzeugs bestimmt. Dadurch kann bspw. automatisch bestimmt werden, wie der Bedarf an elektrischer Reichweite an einem bestimmten Tag und ggf. zu einer bestimmten Uhrzeit ist, so dass der dazu zur Verfügung zu stellende Anteil der in der Batterie für den elektrischen Antrieb originär zur Verfügung stehenden elektrischen Energie zurückgehalten und der verbleibende Anteil freigegeben werden kann, um in das externe Versorgungsnetz eingespeist werden zu können. According to a further embodiment of the method according to the invention, the first portion of the originally available in the battery for the electric drive electrical energy through Coupling to an organizer or an appointment book automatically determined according to appointment calendar accumulating demand for electrical range of the motor vehicle. As a result, it can be automatically determined, for example, how the demand for electrical range on a certain day and, if appropriate, at a specific time is such that the portion of the electrical energy originally available in the battery for the electric drive is available for this purpose retained and the remaining portion can be released to be fed into the external supply network can.
Gemäß weiterer Ausgestaltung des erfindungsgemäßen Verfahrens wird der erste Anteil auf Basis eines über eine vorgegebene Zeitspanne ermittelten durchschnittlichen Bedarfs an elektrischer Reichweite des Kraftfahrzeugs bestimmt. According to a further embodiment of the method according to the invention, the first component is determined on the basis of an average requirement of the electrical range of the motor vehicle determined over a predetermined period of time.
Alternativ dazu kann der erste Anteil auch fest vorgegeben werden. Alternatively, the first part can also be fixed.
Das erfindungsgemäße Verfahren kann an einem Beispiel wie folgt dargelegt werden: Ist bspw. in der Batterie des Kraftfahrzeugs ein Energiegehalt für 30 km elektrische Reichweite vorhanden, muss der Fahrer, d. h. der Nutzer des Kraftfahrzeugs jedoch nur eine Wegstrecke von 10 km zur Arbeit zurücklegen, kann mittels des erfindungsgemäßen Verfahrens der erste Anteil an elektrischer Energie, der für den elektrischen Antrieb zurückzuhalten ist, anhand des Bedarfs für eine Wegstrecke von 10 km genau bestimmt werden, so dass der verbleibende zweite Anteil elektrischer Energie in ein Versorgungsnetz zurückgespeist werden kann. Der verbleibende zweite Anteil bemisst sich sodann aus der Differenz des aktuellen Bedarfs, nämlich für eine Wegstrecke von 10 km und dem möglicherweise zu deckenden Bedarf, nämlich für eine Wegstrecke über 30 km. Ist, wie voranstehend erläutert, das Kraftfahrzeug mit einem Terminkalender bzw. Terminplaner verknüpft, so kann durch eine entsprechend vorgesehene Steuereinheit nach Abruf bspw. der am Folgetag anstehenden Termine automatisch abgeleitet werden, wie groß der erste Anteil an elektrischer Energie sein muss, der zurückzuhalten ist, um den Bedarf an elektrischer Reichweite zu erfüllen, so dass davon abhängig automatisch auch der verbleibende zweite Anteil festgelegt werden kann, welcher für einen externen Verbrauch freigegeben werden kann. Alternativ dazu, kann anhand einer durchschnittlichen morgendlichen Wegstrecke, die der Fahrer an Wochentagen zurücklegt, der erste und damit auch der verbleibende zweite Anteil elektrischer Energie festgelegt werden. Es ist jedoch denkbar, dass der Fahrer durch manuelle Eingabe eine vorgesehene automatische Festlegung des ersten und damit auch des verbleibenden zweiten Anteils elektrischer Energie aushebelt, so dass der von ihm manuell eingegebene Bedarf an elektrischer Energie als der Bedarf angesehen wird, auf welchen der erste und somit auch der zweite Anteil abzustimmen sind. By way of example, the method according to the invention can be stated as follows: If, for example, there is an energy content for 30 km of electrical range in the battery of the motor vehicle, then the driver, ie. H. However, the user of the motor vehicle only cover a distance of 10 km to work can be determined by means of the inventive method, the first portion of electrical energy to be retained for the electric drive, based on the need for a distance of 10 km, so that the remaining second portion of electrical energy can be fed back into a supply network. The remaining second component is then calculated from the difference of the current requirement, namely for a distance of 10 km and the possibly to be covered needs, namely for a distance of more than 30 km. Is, as explained above, the motor vehicle associated with an appointment book or organizer, it can be derived automatically by an appropriately provided control unit after retrieval, for example. The upcoming date the next day, how large the first portion of electrical energy must be withheld In order to meet the need for electrical range, so that depending on automatically also the remaining second portion can be set, which can be released for external consumption. Alternatively, based on an average morning distance that the driver travels on weekdays, the first and thus the remaining second portion of electrical energy can be set. However, it is conceivable that the driver, by manual input, cancels an intended automatic definition of the first and thus also of the remaining second portion of electrical energy, so that the manually entered electrical energy requirement is regarded as the requirement for the first and second thus the second share must be agreed.
Die vorliegende Erfindung betrifft ferner ein Bedienelement zur Steuerung eines Betriebsmodus eines Kraftfahrzeugs mit einem elektrischen Antrieb mit mindestens einer Batterie. Das erfindungsgemäße Bedienelement kann zwischen einer aktiven Stellung und einer inaktiven Stellung umgeschaltet werden und ist dazu ausgelegt, bei Aktivierung automatisch einen definierten Anteil von in der mindestens einen Batterie gespeicherter elektrischer Energie für einen externen Verbrauch zur Verfügung zu stellen. Dabei ist in Abhängigkeit von einem aktuellen Ladezustand der mindestens einen Batterie innerhalb von gegebenen Leistungsgrenzen von einem von dem elektrischen Antrieb originär zur Verfügung stehenden und in der mindestens einen Batterie gespeicherten elektrischen Energieanteil ein zu bestimmender erster Anteil für den elektrischen Antrieb zurückzuhalten und ein verbleibender zweiter Anteil als definierter Anteil von in der mindestens einen Batterie gespeicherter elektrischer Energie für eine Einspeisung in ein externes Versorgungsnetz, d. h. für einen externen Verbrauch zur Verfügung zu stellen. The present invention further relates to an operating element for controlling an operating mode of a motor vehicle having an electric drive with at least one battery. The control element according to the invention can be switched between an active position and an inactive position and is designed to automatically provide a defined proportion of stored in the at least one battery electrical energy for external consumption when activated. In this case, depending on a current state of charge of the at least one battery within given power limits of a of the electric drive originally available and stored in the at least one battery electrical energy portion to be determined to retain a first portion for the electric drive and a remaining second portion as a defined proportion of stored in the at least one battery electrical energy for feeding into an external supply network, d. H. for an external consumption.
Der Batterieladezustand, wie er absolut vorliegt, ist nicht gleichzusetzen mit dem Ladezustand, der zum Verbrauch verfügbar ist, und dieser wiederum ist nicht gleichzusetzen mit dem Ladezustand, der ausschließlich für den elektrischen Antrieb zur Verfügung steht. Bei einer zu 100% geladenen Batterie steht in der Regel nur eine bestimmte Ladekapazität z.B. von 10% und 90% der Batterie zur Verfügung. Diese zur Verfügung stehende Ladekapazität wird durch die Batterie selbst bestimmt aufgrund der jeweiligen Leistungsgrenzen der Batterie. Von dieser zur Verfügung stehenden Energie ist ferner ein Teil vorzusehen, der eine Vorkonditionierung, eine Sicherheitsdiagnose sowie eine Versorgung von Nebenverbrauchern im Hochvoltbereich ermöglicht. Innerhalb dieser Leistungsgrenzen verbleibt sodann ein Energieanteil in der geladenen Batterie, der ausschließlich für den elektrischen Antrieb zur Verfügung steht. Dieser originär für den elektrischen Antrieb zur Verfügung stehende Energieanteil kann sodann gemäß dem erfindungsgemäßen Verfahren in einen ersten und einen entsprechenden zweiten Anteil aufgeteilt werden. Gleiche Aufteilung kann durch Aktivierung des erfindungsgemäßen Bedienelements realisiert werden. The battery state of charge, as it is absolute, is not equal to the state of charge that is available for consumption, and this in turn is not equal to the state of charge, which is available exclusively for the electric drive. With a 100% charged battery is usually only a certain charge capacity, e.g. of 10% and 90% of the battery available. This available charging capacity is determined by the battery itself due to the respective performance limits of the battery. From this available energy is also a part to provide that allows a preconditioning, a safety diagnosis and a supply of auxiliary consumers in the high-voltage range. Within this power limits then remains an energy component in the charged battery, which is available exclusively for the electric drive. This original energy portion available for the electric drive can then be divided into a first and a corresponding second proportion according to the method according to the invention. Same division can be realized by activating the control element according to the invention.
Das erfindungsgemäße Bedienelement ist in einer weiteren Ausgestaltung als eine Taste, die zu aktivieren und zu drücken ist, als ein Kippschalter oder als ein Schieber ausgeführt. The control element according to the invention is designed in a further embodiment as a key which is to be activated and pressed, as a toggle switch or as a slide.
Ferner ist das erfindungsgemäße Bedienelement gemäß einer weiteren Ausführungsform an einem Armaturenbrett oder an einer Mittelkonsole des entsprechenden Kraftfahrzeugs angeordnet. Furthermore, the control element according to the invention is arranged according to a further embodiment on a dashboard or on a center console of the corresponding motor vehicle.
Darüberhinaus kann das erfindungsgemäße Bedienelement mit einem Leuchtelement gekoppelt sein, das bei aktiviertem Bedienelement ein definiertes Leuchtsignal emittiert. Moreover, the control element according to the invention can be coupled to a light-emitting element which emits a defined light signal when the control element is activated.
In weiterer Ausgestaltung ist das erfindungsgemäße Bedienelement mit einer Steuereinheit gekoppelt, die dazu ausgelegt ist, bei Aktivierung des Bedienelements automatisch eine Freigabe des definierten Anteils der in der mindestens einen Batterie gespeicherten elektrischen Energie für einen externen Verbrauch zu bewirken. In a further refinement, the operating element according to the invention is coupled to a control unit which is designed to automatically effect, upon activation of the operating element, a release of the defined portion of the electrical energy stored in the at least one battery for external consumption.
Die vorliegende Erfindung betrifft ferner ein Bordnetz eines Kraftfahrzeugs mit einem elektrischen Antrieb mit mindestens einer Batterie, wobei das Bordnetz mindestens ein in das Bordnetz integriertes Bedienelement zur Steuerung eines Betriebsmodus des Kraftfahrzeugs und eine über das Bordnetz mit dem Bedienelement in Wirkkontakt stehende Steuereinheit umfasst. Dabei ist das Bedienelement zwischen einer aktiven Stellung und einer inaktiven Stellung umschaltbar und steht bei Aktvierung derart mit der Steuereinheit in Wirkkontakt, dass die Steuereinheit automatisch einen definierten Anteil von in der mindestens einen Batterie gespeicherter elektrischer Energie für einen externen Verbrauch zur Verfügung stellt. Dabei ist in Abhängigkeit von einem aktuellen Ladezustand der mindestens einen Batterie innerhalb von gegebenen Leistungsgrenzen von einem von dem elektrischen Antrieb originär zur Verfügung stehenden und in der mindestens einen Batterie gespeicherten elektrischen Energieanteil ein zu bestimmender erster Anteil für den elektrischen Antrieb zurückzuhalten und ein verbleibender zweiter Anteil als definierter Anteil von in der mindestens einen Batterie gespeicherter elektrischer Energie für eine Einspeisung in ein externes Versorgungsnetz zur Verfügung zu stellen. The present invention further relates to an electrical system of a motor vehicle with an electric drive with at least one battery, wherein the electrical system comprises at least one control element integrated into the electrical system for controlling an operating mode of the motor vehicle and a standing over the electrical system with the control element in operative contact control unit. In this case, the operating element is switchable between an active position and an inactive position and is in operative contact with the control unit in such an activation that the control unit automatically provides a defined proportion of electrical energy stored in the at least one battery for external consumption. In this case, depending on a current state of charge of the at least one battery within given power limits of a of the electric drive originally available and stored in the at least one battery electrical energy portion to be determined to retain a first portion for the electric drive and a remaining second portion to provide as a defined proportion of stored in the at least one battery electrical energy for feeding into an external supply network.
In weiterer Ausgestaltung umfasst das Bordnetz eine Speichereinheit, die mit der Steuereinheit gekoppelt ist und in welcher für die Steuereinheit abrufbar zu hinterlegen ist, wie groß der definierte Anteil von der in der mindestens einen Batterie gespeicherten elektrischen Energie ist. In a further refinement, the vehicle electrical system comprises a memory unit which is coupled to the control unit and in which it is possible to store for the control unit how large the defined proportion of the electrical energy stored in the at least one battery is.
In weiterer Ausgestaltung umfasst das Bordnetz eine Recheneinheit, die dazu ausgelegt ist, anhand eines vorgegebenen Bedarfs an elektrischer Reichweite den ersten Anteil, der für den elektrischen Antrieb zur Realisierung der vorgegebenen elektrischen Reichweite zurückzuhalten ist, zu berechnen. Ferner ist die Recheneinheit dazu ausgelegt, abgeleitet aus dem bestimmten ersten Anteil, den verbleibenden zweiten Anteil festzulegen, der als definierter Anteil von in der mindestens einen Batterie gespeicherter elektrischer Energie für eine Einspeisung in ein externes Versorgungsnetz zur Verfügung zu stellen ist. Die Recheneinheit kann Teil der Steuereinheit sein, d. h. in diese integriert sein. Ferner ist es auch denkbar, dass die Recheneinheit nicht in die Steuereinheit integriert ist, mit der Steuereinheit jedoch in Wirkkontakt steht. Der aktuelle Bedarf an elektrischer Reichweite des Kraftfahrzeugs kann über eine Eingabeeinheit direkt in die Steuereinheit eingegeben werden, so dass anhand des eingegebenen aktuellen Bedarfs an elektrischer Reichweite mittels der Recheneinheit der zurückzuhaltende Anteil an elektrischer Energie für den elektrischen Antrieb festgelegt werden kann. Alternativ dazu kann der aktuelle Bedarf an elektrischer Reichweite auch durch eine Ankopplung der Steuereinheit an einen Terminplaner bzw. Terminkalender automatisch nach gemäß Terminkalender anfallendem Bedarf an elektrischer Reichweite des Kraftfahrzeugs bestimmt werden. Dazu ist ein Modul in der Steuereinheit, wie bspw. ein Eingabemodul der Steuereinheit mit einem entsprechend im Kraftfahrzeug hinterlegten Terminplaner zu koppeln. Ferner kann der aktuelle Bedarf an elektrischer Reichweite des Kraftfahrzeugs auch in der Recheneinheit auf Basis eines über eine vorgegebene Zeitspanne ermittelten durchschnittlichen Bedarfs an elektrischer Reichweite des Kraftfahrzeugs angenähert und somit bestimmt werden. Alternativ dazu kann der erste Anteil an elektrischer Energie, der für den elektrischen Antrieb zurückzuhalten ist, auch festgelegt sein und in der Speichereinheit abrufbar hinterlegt sein. Das Bordnetz kann so konfiguriert sein, dass bei einer manuellen Eingabe seitens eines Nutzers über die Eingabeeinheit der Steuereinheit bezüglich einer gewünschten elektrischen Reichweite eine automatische Bestimmung der elektrischen Reichweite anhand bspw. einer Ankopplung an den Terminkalender oder anhand eines über eine Zeitspanne ermittelten durchschnittlichen Bedarfs ausgehebelt wird und für die Bestimmung des ersten Anteils an elektrischer Energie, die zurückzuhalten ist, lediglich die manuelle Eingabe seitens des Fahrers gilt. In a further embodiment, the electrical system comprises a computing unit which is designed to calculate the first portion, which is to be retained for the electric drive for realizing the predetermined electrical range, based on a predetermined requirement for electrical range. Furthermore, the arithmetic unit is designed to determine, derived from the determined first portion, the remaining second portion which is to be made available as a defined proportion of electrical energy stored in the at least one battery for feeding into an external supply network. The arithmetic unit may be part of the control unit, i. H. be integrated into this. Furthermore, it is also conceivable that the arithmetic unit is not integrated in the control unit, but is in operative contact with the control unit. The current demand for electrical range of the motor vehicle can be input via an input unit directly into the control unit, so that based on the entered current demand for electrical range by means of the arithmetic unit of the retained portion of electrical energy for the electric drive can be set. Alternatively, the current demand for electrical range can also be determined automatically by coupling the control unit to an appointment planner or appointment calendar according to the schedule of events arising need for electrical range of the motor vehicle. For this purpose, a module in the control unit, such as, for example, to couple an input module of the control unit with an appropriately stored in the motor vehicle organizer. Furthermore, the current demand for electrical range of the motor vehicle can also be approximated and thus determined in the arithmetic unit on the basis of an average demand for electrical range of the motor vehicle determined over a predetermined period of time. Alternatively, the first portion of electrical energy to be retained for the electric drive may also be fixed and stored in the memory unit. The on-board network can be configured such that when a user manually inputs through the input unit of the control unit with respect to a desired electrical range, an automatic determination of the electrical range based on, for example, a coupling to the diary or over a period of time determined average needs is canceled and for determining the first portion of electrical energy to be retained, only manual input by the driver applies.
Beispielhaft sei erwähnt, dass bei einer vollgeladenen Batterie eines Kraftfahrzeugs die gespeicherte nutzbare Energiemenge bei ca. 7 kWh liegen kann. Anhand beispielhafter Verbraucher in einem Privathaushalt wurde dabei festgestellt, dass der Energiegehalt einer vollgeladenen Batterie ausreichen kann, um die beispielhaft genannten externen Verbraucher für die angegebene Betriebszeit zu versorgen. Bei den beispielhaften externen Verbrauchern handelt es sich um die nachfolgend aufgelisteten: Verbraucher mit Betriebszeit sechs Stunden:
Bei Zusammenrechnung der genannten Energieverbräuche ergibt sich ein Energieverbrauch von 6,86 kWh, was in etwa der gespeicherten nutzbaren Energiemenge von ca. 7 kWh entspricht. If the mentioned energy consumption is combined, this results in an energy consumption of 6.86 kWh, which corresponds approximately to the stored usable amount of energy of approx. 7 kWh.
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung und der beiliegenden Zeichnung. Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
Es versteht sich, dass die voranstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the present invention.
Die Erfindung ist anhand einer Ausführungsform in der Zeichnung schematisch dargestellt und wird unter Bezugnahme auf die Zeichnung ausführlich beschrieben. The invention is diagrammatically illustrated by way of an embodiment in the drawing and will be described in detail with reference to the drawing.
Betrachtet man nun in neuer Skalierung von 0% bis 100% die nunmehr von dem absoluten Batterieladezustand abgeleitete verfügbare Batterieladung, d. h. die nutzbare elektrische Energie
Dieser seitens der Batterie originär für den elektrischen Antrieb zur Verfügung gestellte Anteil elektrischer Energie
Mittels einer Ausführungsform des erfindungsgemäßen Verfahrens ist es nunmehr möglich, dass elektrische Energie, die in der Batterie
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 19722644 C1 [0003] DE 19722644 C1 [0003]
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DE201210111509 DE102012111509A1 (en) | 2012-11-28 | 2012-11-28 | Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network |
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DE201210111509 DE102012111509A1 (en) | 2012-11-28 | 2012-11-28 | Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network |
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DE201210111509 Ceased DE102012111509A1 (en) | 2012-11-28 | 2012-11-28 | Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network |
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Cited By (5)
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DE102017215145A1 (en) * | 2017-08-30 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Socket in or on vehicle |
WO2020165509A1 (en) * | 2019-02-15 | 2020-08-20 | Hutchinson | Electric energy management system |
DE102020121020A1 (en) | 2020-08-10 | 2022-02-10 | Volkswagen Aktiengesellschaft | Device and method for controlling energy consumption of a vehicle with a traction battery |
DE102020128000A1 (en) | 2020-10-23 | 2022-04-28 | Bayerische Motoren Werke Aktiengesellschaft | Securing a proportion of energy that can be stored in a high-voltage energy storage device for the operation of a vehicle |
DE102017202232B4 (en) | 2017-02-13 | 2024-01-11 | Volkswagen Aktiengesellschaft | Method for controlling a device for providing electrical energy to a motor vehicle, control device and motor vehicle with a control device |
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DE19722644C1 (en) | 1997-05-30 | 1998-09-17 | Aeg Anglo Batteries Germany Gm | Additional AC network for electric vehicle with high power battery |
DE10331084A1 (en) * | 2003-07-09 | 2005-03-24 | Aloys Wobben | motor vehicle |
DE102010029118A1 (en) * | 2010-05-19 | 2011-11-24 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating energy storage system i.e. battery, of e.g. electrical car, involves calculating amount of power to be stored in battery of car based on energy requirement of car |
DE102011106357A1 (en) * | 2011-07-02 | 2012-08-30 | Daimler Ag | Motor car operating method, involves adjusting operating condition of motor car based on received motor car data and by operation device, where motor car data depends on data of personal calendar of user of motor car |
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DE19722644C1 (en) | 1997-05-30 | 1998-09-17 | Aeg Anglo Batteries Germany Gm | Additional AC network for electric vehicle with high power battery |
DE10331084A1 (en) * | 2003-07-09 | 2005-03-24 | Aloys Wobben | motor vehicle |
DE102010029118A1 (en) * | 2010-05-19 | 2011-11-24 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating energy storage system i.e. battery, of e.g. electrical car, involves calculating amount of power to be stored in battery of car based on energy requirement of car |
DE102011106357A1 (en) * | 2011-07-02 | 2012-08-30 | Daimler Ag | Motor car operating method, involves adjusting operating condition of motor car based on received motor car data and by operation device, where motor car data depends on data of personal calendar of user of motor car |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017202232B4 (en) | 2017-02-13 | 2024-01-11 | Volkswagen Aktiengesellschaft | Method for controlling a device for providing electrical energy to a motor vehicle, control device and motor vehicle with a control device |
DE102017215145A1 (en) * | 2017-08-30 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Socket in or on vehicle |
WO2020165509A1 (en) * | 2019-02-15 | 2020-08-20 | Hutchinson | Electric energy management system |
FR3092795A1 (en) * | 2019-02-15 | 2020-08-21 | Hutchinson | Electrical energy management system |
DE102020121020A1 (en) | 2020-08-10 | 2022-02-10 | Volkswagen Aktiengesellschaft | Device and method for controlling energy consumption of a vehicle with a traction battery |
EP3954570A1 (en) | 2020-08-10 | 2022-02-16 | Volkswagen Ag | Device and method for controlling the energy consumption of a vehicle with a traction battery |
DE102020128000A1 (en) | 2020-10-23 | 2022-04-28 | Bayerische Motoren Werke Aktiengesellschaft | Securing a proportion of energy that can be stored in a high-voltage energy storage device for the operation of a vehicle |
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