DE102011010049A1 - Vehicle e.g. electric vehicle, has vehicle communication unit providing information about charging condition or charging parameter of battery, where information is inductively transmitted to charging device over vehicle coil - Google Patents

Vehicle e.g. electric vehicle, has vehicle communication unit providing information about charging condition or charging parameter of battery, where information is inductively transmitted to charging device over vehicle coil

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Publication number
DE102011010049A1
DE102011010049A1 DE201110010049 DE102011010049A DE102011010049A1 DE 102011010049 A1 DE102011010049 A1 DE 102011010049A1 DE 201110010049 DE201110010049 DE 201110010049 DE 102011010049 A DE102011010049 A DE 102011010049A DE 102011010049 A1 DE102011010049 A1 DE 102011010049A1
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DE
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Patent type
Prior art keywords
vehicle
charging
battery
coil
information
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Pending
Application number
DE201110010049
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German (de)
Inventor
Dipl.-Ing. Baier Karlheinz
Dipl.-Ing. Kronewitter Matthias
Dipl.-Ing.(BA) Weber Thomas
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Daimler AG
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Daimler AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/18Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells
    • B60L11/1809Charging electric vehicles
    • B60L11/182Charging electric vehicles by inductive energy transfer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/18Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells
    • B60L11/1809Charging electric vehicles
    • B60L11/1824Details of charging stations, e.g. vehicle recognition or billing
    • B60L11/1838Methods for the transfer of electrical energy or data between charging station and vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/18Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells
    • B60L11/1809Charging electric vehicles
    • B60L11/1824Details of charging stations, e.g. vehicle recognition or billing
    • B60L11/1838Methods for the transfer of electrical energy or data between charging station and vehicle
    • B60L11/1846Identification of the vehicle
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • H02J7/025Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter using non-contact coupling, e.g. inductive, capacitive
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7005Batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/12Electric charging stations
    • Y02T90/121Electric charging stations by conductive energy transmission
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/12Electric charging stations
    • Y02T90/122Electric charging stations by inductive energy transmission
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/12Electric charging stations
    • Y02T90/128Energy exchange control or determination
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/14Plug-in electric vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/163Information or communication technologies related to charging of electric vehicle
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y02T90/169Aspects supporting the interoperability of electric or hybrid vehicles, e.g. recognition, authentication, identification or billing
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

The vehicle has a vehicle coil (18) for inductive reception of a charge current for a battery (16) i.e. traction battery. A vehicle communication unit (22) provides information about a charging condition or a charging parameter of the battery. The information from the vehicle communication unit is inductively transmitted to a charging device over the vehicle coil, where the charging device is placed outside the vehicle. A rectifier (20) i.e. passive rectifier, rectifies the charge current for the battery. Independent claims are also included for the following: (1) a charging device for charging a battery of a vehicle (2) a method for charging of an battery of a vehicle.

Description

  • Die vorliegende Erfindung betrifft ein Fahrzeug gemäß dem Oberbegriff des Patentanspruchs 1. Über dies betrifft die vorliegende Erfindung eine Ladevorrichtung zum Laden einer Batterie eines Fahrzeugs gemäß dem Oberbegriff des Patentanspruchs 3. Des Weiteren betrifft die Erfindung ein Verfahren zum Laden einer Batterie eines Fahrzeugs gemäß dem Oberbegriff des Patentanspruchs 5. Schließlich betrifft die vorliegende Erfindung ein Verfahren zum Laden einer Batterie eines Fahrzeugs gemäß dem Oberbegriff des Patentanspruchs 7. The present invention relates to a vehicle according to the preamble of claim 1. On top of this the present invention relates to a charging device for charging a battery of a vehicle according to the preamble of claim 3. The invention further relates to a method for charging a battery of a vehicle according to the preamble of claim 5. Finally, the present invention relates to a method for charging a battery of a vehicle according to the preamble of claim 7.
  • Beim kabellosen Laden von Batterien von Elektrofahrzeugen wird über einen Luftspalt zwischen einer ersten Spule, die sich im Fahrzeug befindet, und einer zweiten Spule, die einer Ladestation zugeordnet ist, elektrische Energie nach dem Trafoprinzip übertragen. When wireless charging batteries of electric vehicles is an air gap between a first coil which is located in the vehicle, and a second coil that is assigned to a loading station, transfer electrical energy to the transformer principle. Hierbei wird üblicherweise fahrzeugseitig zusätzliche Leistungselektronik, wie z. Here is usually onboard additional power electronics such. B. Gleichrichter bzw. Strom- und Spannungsregler, benötigt. B. rectifier or current and voltage regulator, is required. Speziell zur Anpassung des Ladestroms bzw. der Ladespannung der Batterie werden Hoch- oder Tiefsetzsteller eingesetzt, welche üblicherweise Induktivitäten für die Speicherung des elektrischen Stroms umfassen. Specifically, for adjusting the charging current or the charging voltage of the battery up or step-down converters are used which usually comprise inductors for the storage of the electric current.
  • Aus der Druckschrift From document US 4 496 896 A1 US 4,496,896 A1 ist eine Vorrichtung zum Laden einer Batterie eines Fahrzeugs als bekannt zu entnehmen, bei welcher die elektrische Energie zum Laden der Batterie zwischen einer Spule im Fahrzeug und einer Spule in der Ladestation induktiv übertragen wird. is an apparatus for charging a battery of a vehicle can be seen as is known in which the electric energy for charging the battery in the vehicle between a coil and a coil in the loading station is transmitted inductively. Zudem umfassen das Fahrzeug und die Ladestation jeweils eine weitere Spule, über deren Kopplung eine Kommunikation zwischen dem Fahrzeug und der Ladestation ermöglicht wird, infolge welcher ein kontrolliertes Laden der Batterie in Abhängigkeit von der Position des Fahrzeugs zur Ladestation und dem Ladezustand der Batterie ermöglicht wird. In addition, the vehicle and the charging station each comprise a further coil, a communication between the vehicle and the charging station is made possible by their coupling, as a result of which a controlled charging of the battery depending on the position of the vehicle to the charging station and the state of charge of the battery is made possible.
  • Als nachteilig an einer derartigen Vorrichtung zum Laden einer Batterie eines Fahrzeugs ist der Umstand zu betrachten, dass hier durch einen aufwendigen und komplexen Aufbau eine Kommunikationseinrichtung zwischen dem Fahrzeug und der Ladestation hergestellt wird. A disadvantage of such a device for charging a battery of a vehicle, the fact is to be considered here that a communication means between the vehicle and the charging station is made by a costly and complex construction.
  • Aufgabe der vorliegenden Erfindung ist es daher, eine Ladevorrichtung und Verfahren zum kabellosen Laden einer Batterie eines Fahrzeugs zu schaffen, mittels welcher besonders einfach und effektiv das Laden einer Batterie eines Fahrzeugs an einer entsprechenden Ladestation ermöglicht und kontrolliert werden kann. Object of the present invention is therefore to provide a loading apparatus and methods for wireless charging a battery of a vehicle, by means of which a particularly simple and effective charging of a battery of a vehicle at a respective loading station allows and can be controlled.
  • Erfindungsgemäß wird für diese Aufgabe bereitgestellt ein Fahrzeug mit According to the invention is for this purpose provided a vehicle with
    • – einer Batterie, - a battery,
    • – einer Fahrzeugspule zum induktiven Aufnehmen eines Ladestroms für die Batterie, - a vehicle inductive coil for receiving a charging current for the battery,
    • – einer Fahrzeugkommunikationseinrichtung zum Bereitstellen einer Information bezüglich des Ladezustands oder einer Ladegröße der Batterie, wobei - a vehicle communication device for providing information regarding the state of charge or a charge amount of the battery,
    • – die von der Fahrzeugkommunikationseinrichtung bereitgestellte Information über die Fahrzeugspule induktiv an eine fahrzeugexterne Ladevorrichtung übertragbar ist. - the information provided by the vehicle communication device information on the vehicle coil is inductively transferred to a vehicle-external charging device.
  • Mit der Fahrzeugkommunikationseinrichtung wird entweder eine Information über den Ladezustand der Batterie, dh zu welchem Anteil bezogen auf den vollständig aufgeladen Zustand die Batterie aufgeladen ist, oder eine Information über eine Ladegröße, wie z. With the vehicle communication device is one of information about the charging state of the battery, ie, based on how much of the fully charged state, the battery is charged or information about a charge amount, such. B. den Batteriestrom und/oder die Batteriespannung, bereitgestellt. As the battery current and / or the battery voltage is provided. Diese Information wird über die Fahrzeugspule an die Ladevorrichtung übertragen. This information is transmitted via the vehicle coil on the charger. Auf diese Weise kann der von der fahrzeugexternen Ladevorrichtung an die Fahrzeugspule induktiv übertragene Ladestrom geregelt werden. In this way, the inductively transmitted from the vehicle-external charger to the vehicle coil charging current can be controlled.
  • Somit wird fahrzeugseitig keine zusätzliche Leistungselektronik, wie z. Thus, the vehicle side, no additional power electronics such. B. Hoch- oder Tiefsetzsteller, benötigt, um die Amplitude des Ladestroms an den Ladezustand der Batterie anzupassen. As high or step-down converter needs to adjust the amplitude of the charging current to the charging state of the battery. Daher können die ansonsten hierfür anfallenden Kosten eingespart werden und das Gewicht des Fahrzeugs reduziert werden. Therefore, the otherwise corresponding costs can be saved and the weight of the vehicle can be reduced. Das von der Ladestation an die Fahrzeugspule übertragene Wechselsignal soll zum Laden der Batterie gleichgerichtet werden. The transferred from the charging station to the vehicle coil switching signal to be rectified to charge the battery. In einer bevorzugten Ausführungsform umfasst das Fahrzeug zu diesem Zweck einen Gleichrichter, insbesondere einen passiven Gleichrichter. In a preferred embodiment the vehicle comprises for this purpose a rectifier, in particular a passive rectifiers.
  • Darüber hinaus wird erfindungsgemäß für die Aufgabe bereitgestellt eine Ladevorrichtung zum Laden einer Batterie eines Fahrzeugs mit In addition, the invention provides for the object of a charging device for charging a battery of a vehicle having
    • – einer Einspeiseinrichtung zum Bereitstellen eines Ladestroms, - a feed device for providing a charging current,
    • – einer Ladekommunikationseinrichtung zum Bereitstellen einer Information bezüglich des Ladens der Batterie und - a charging communication means for providing information relating to the charging of the battery, and
    • – einer Ladespule, mit der der Ladestrom von der Einspeiseinrichtung induktiv an das Fahrzeug übertragbar ist, wobei - a charging coil with which the charging current of the feed device is inductively transmitted to the vehicle, wherein
    • – die von der Ladekommunikationseinrichtung bereitgestellte Information über die Ladespule induktiv an das Fahrzeug übertragbar ist. - the information provided by the charging communication device information about the charging coil is inductively transferred to the vehicle.
  • Die Einspeiseeinrichtung der Ladevorrichtung ist mit einem Wechselspannungsnetz verbunden und überträgt den Ladestrom an die Ladespule, mittels welcher der Ladestrom für das Fahrzeug bereitgestellt wird. The feed means of the loading device is connected to an alternating voltage network, and transmits the charging current to the charging coil, by means of which the charging current for the vehicle is provided. Die Ladekommunikationseinrichtung stellt hierzu eine Information über das Laden der Batterie bereit, welche ebenfalls über die Ladespule an das Fahrzeug übertragen wird. The charging communication device provides this information about the charging of the battery prepared which is also transmitted via the charging coil to the vehicle.
  • Die Übertragung der Information zwischen der Ladekommunikationseinrichtung und der Fahrzeugkommunikationseinrichtung erfolgen über die induktive Kopplung der Ladespule und der Fahrzeugspule, über welche zugleich die elektrische Energie bzw. der Ladestrom zum Laden der Batterie des Fahrzeugs übertragen wird. The transfer of information between the charging communication device and the vehicle communication device via the inductive coupling of the charging coil and the vehicle coil through which the electric energy or the charging current for charging the battery of the vehicle at the same time is transmitted. Somit können einerseits von der Fahrzeugkommunikationseinrichtung eine Information über den Ladezustand oder die Ladegröße an die Ladekommunikationseinrichtung übertragen werden, andererseits übermittelt die Ladekommunikationseinrichtung eine Information über das Laden der Batterie an die Fahrzeugkommunikationseinrichtung. Thus, on the one hand from the vehicle communication device information about the state of charge or the charge amount is transferred to the charging communication apparatus, on the other hand the charging communication device transmits information about the charging of the battery to the vehicle communication device.
  • Durch diese bidirektionale Kommunikation zwischen dem Fahrzeug und der Ladestation kann der Ladestrom, welcher im Fahrzeug bereitgestellt wird, bereits durch die Einspeiseeinrichtung in der Ladestation geregelt werden. Through this bi-directional communication between the vehicle and the charging station, the charging current, which is provided in the vehicle can be already covered by the feeder means in the charging station. Vorzugesweise ist die zeitliche Dauer des Bereitstellens, die Spannung und/oder die Amplitude des Ladestroms durch die Einspeiseinrichtung anhand einer über die Ladespule von dem Fahrzeug erhaltene Information einstellbar. Vorzugesweise the duration of providing the voltage and / or the amplitude of the charging current by the feed device using a through the charging coil obtained from the vehicle information is adjustable.
  • Durch die galvanische Trennung des Wechselstromnetzes und der Batterie des Fahrzeugs, welche durch die induktive Kopplung gegeben ist, bedarf es keiner aufwendigen Maßnahmen, um einen möglichen Fehlerstrom an der Batterie zu erkennen und zu verhindern. Due to the galvanic separation of the AC mains and the battery of the vehicle, which is given by the inductive coupling, it does not require expensive measures to detect a possible fault current to the battery and to prevent.
  • Des Weiteren wird die Aufgabe der Erfindung gelöst durch ein Verfahren zum Laden einer Batterie eines Fahrzeugs durch Furthermore, the object of the invention is achieved by a method for charging a battery of a vehicle by
    • – induktives Aufnehmen eines Ladestroms für die Batterie durch eine Fahrzeugspule und - inductive receiving a charging current for the battery through a coil and vehicle
    • – Bereitstellen einer Information bezüglich des Ladezustands oder einer Ladegröße der Batterie, wobei - providing an information concerning the state of charge or a charge amount of the battery,
    • – die bereitgestellte Information über die Fahrzeugspule induktiv an eine fahrzeugexterne Ladevorrichtung übertragen wird. - the information provided via the vehicle coil is inductively transmitted to a vehicle-external charging device.
  • In einer bevorzugten Ausgestaltung werden hierbei zusätzliche Informationen bezüglich einer Identifikation des Fahrzeugs und/oder einer Kostenabrechnung über die Fahrzeugspule an die fahrzeugexterne Ladevorrichtung übertragen. In a preferred embodiment, additional information regarding an identification of the vehicle and / or a cost accounting on the vehicle coil to the vehicle-external charging device in this case be transmitted. Durch die Nahfeldkommunikation zwischen der Fahrzeugspule und der Ladespule und einer zusätzlichen Verschlüsselung der Daten wird eine besonders sichere Art der Kommunikation ermöglicht. By the near-field communication between the vehicle and the charging coil bobbin and an additional encryption of the data, a particularly reliable mode of communication is possible.
  • Schließlich wird erfindungsgemäß die Aufgabe gelöst durch ein Verfahren zum Laden einer Batterie eines Fahrzeugs durch Finally, the object is achieved by a method for charging a battery of a vehicle by
    • – Bereitstellen eines Ladestroms, - providing a charging current,
    • – Bereitstellen einer Information bezüglich des Ladens der Batterie und - providing an information concerning the charging of the battery, and
    • – induktives Übertragen des Ladestroms durch eine Ladespule an das Fahrzeug, wobei - inductive transfer of charge current through a charge coil to the vehicle, wherein
    • – die bereitgestellte Information über die Ladespule induktiv an das Fahrzeug übertragen wird. - the information provided on the charging coil is inductively transmitted to the vehicle.
  • Somit kann auf eine besonders einfache und effektive Weise das Laden einer Batterie des Fahrzeugs an der entsprechenden Ladevorrichtung ermöglicht und kontrolliert werden. Thus, in a particularly simple and effective manner, the charging of a battery of the vehicle to the corresponding charging device allows and controlled.
  • Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnung näher erläutert, diese zeigt einen Schaltplan einer Schaltungsanordnung zum Laden einer Batterie eines Fahrzeugs mit einer Ladevorrichtung. The present invention will now be explained with reference to the accompanying drawings, this shows a circuit diagram of a circuit arrangement for charging a battery of a vehicle having a charging device.
  • Die nachfolgend näher geschilderten Ausführungsbeispiele stellen bevorzugte Ausführungsformen der vorliegenden Erfindung dar. The more detail below embodiments represent preferred embodiments of the present invention.
  • Die in der Figur dargestellte Schaltungsanordnung zum kabellosen Laden einer Batterie eines Fahrzeugs ist in zwei Stromkreise The circuit arrangement shown in the figure for wirelessly charging a battery of a vehicle is divided into two circuits 10 10 , . 12 12 unterteilt. divided. Der erste Stromkreis The first circuit 10 10 ist hierbei dem hier nicht dargestellten Fahrzeug zugeordnet. the vehicle is not shown here, is in this case assigned. Eine hier nicht gezeigte Ladevorrichtung umfasst den zweiten Stromkreis A loading device not shown here comprises the second circuit 12 12 . , Diese Ladevorrichtung kann beispielweise in Form einer stationären oder einer mobilen Ladestation realisiert werden. This charging device can be realized for example in the form of a stationary or a mobile docking station. Ebenso ist es denkbar, dass die Ladevorrichtung unterhalb der Oberfläche eines Stellplatzes des Fahrzeugs angeordnet ist. It is equally conceivable that the charging device is disposed beneath the surface of a parking space of the vehicle. Die räumliche Trennung zwischen dem ersten Stromkreis The spatial separation between the first circuit 10 10 und dem zweiten Stromkreis and the second circuit 12 12 ist in der Fig. durch die gestrichelte Line is in the Fig. by the dashed line 14 14 veranschaulicht. illustrated.
  • Der erste Stromkreis The first circuit 10 10 umfasst eine Batterie comprises a battery 16 16 , insbesondere eine Traktionsbatterie für ein Elektro- oder Hybridfahrzeug. , In particular a traction battery for an electric or hybrid vehicle. Ebenso soll jede andere Art einer Batterie Likewise, any other type of battery is 16 16 bzw. eines Akkumulators eines Fahrzeugs berücksichtigt sein. be taken into account or a battery of a vehicle. Die Batterie The battery 16 16 kann als eine Lithium-Ionen-Batterie, eine Nickel-Metall-Hybrid-Batterie, eine Bleibatterie oder dergleichen ausgebildet sein. may be formed as a lithium-ion battery, a nickel-metal hydride battery, a lead battery or the like. Ebenso ist eine Anordnung bzw. Verschaltung von mehreren Batterien denkbar. Also, an arrangement or connection of several batteries is also feasible.
  • Des Weiteren umfasst der erste Stromkreis Further comprising the first circuit 10 10 eine Fahrzeugspule a vehicle coil 18 18 , welche den Ladestrom induktiv von der Ladevorrichtung aufnimmt. Which receives the charging current from the inductive charging apparatus. Am Ausgang der Fahrzeugspule At the exit of the vehicle coil 18 18 liegt der Ladestrom in Form eines Wechselsignals an, welches durch den Gleichrichter the charging current is obtained in the form of an alternating signal by the rectifier 20 20 gleichgerichtet wird. is rectified. Somit kann der Ladestrom als Gleichsignal für das Laden der Batterie Thus, the charge current as a DC signal for charging the battery 16 16 bereitgestellt werden. to be provided. Vorzugsweise ist der Gleichrichter Preferably, the rectifier 20 20 als passiver Gleichrichter bzw. als nicht steuerbarer Gleichrichter ausgelegt, da der Ladestrom – wie im Weiteren noch erläutert – nicht durch den Gleichrichter designed as a passive rectifier or as a non-controllable rectifier, since the charging current - as explained hereinafter - not by the rectifier 20 20 an den Ladezustand der Batterie the charge level of the battery 16 16 angepasst wird. is adapted.
  • Parallel zu dem Gleichrichter ist eine Fahrzeugkommunikationseinrichtung Parallel to the rectifier is a vehicle communication device 22 22 angeordnet, welche eine Information bezüglich des Ladezustandes oder einer Ladegröße der Batterie arranged that information relating to the state of charge or a charge amount of the battery 16 16 bereitstellt. provides. Die Fahrzeugkommunikationseinrichtung The vehicle communication device 22 22 ist hierzu mit einer Datenverbindung is for this purpose with a data connection 24 24 mit der Batterie the battery 16 16 verbunden. connected. Für diese Datenverbindung For this data connection 24 24 kann beispielsweise der CAN-Bus des Fahrzeugs genutzt werden. for example, the CAN bus of the vehicle can be used. An der Batterie On the battery 16 16 soll hierzu eine entsprechende Vorrichtung zum Bestimmen des Ladezustands vorgesehen sein. to this purpose be provided a corresponding device for determining the charge condition. Darüber hinaus soll eine Messvorrichtung zur Bestimmung der Ladegröße, wie beispielsweise den Batteriestrom oder die Batteriespannung, an der Batterie Moreover, a measuring device for determining the load size, such as the battery current or the battery voltage at the battery 16 16 angeordnet sein. be disposed.
  • Die Information bezüglich des Ladezustandes oder der Ladegröße der Batterie The information regarding the state of charge or the charge amount of the battery 16 16 wird von der Fahrzeugkommunikationseinrichtung is from the vehicle communication device 22 22 über die Fahrzeugspule via the vehicle coil 18 18 induktiv an die fahrzeugexterne Ladevorrichtung übertragen. inductively transmitted to the vehicle-external charging device.
  • Der zweite Stromkreis The second circuit 12 12 umfasst eine Ladespule comprises a charging coil 26 26 , welche mit einer Einspeiseeinrichtung , Which with a feed device 28 28 mit einem Wechselstromnetz verbunden ist. is connected to an AC network. Die Verbindung zu dem Wechselstromnetz ist in der Fig. durch den Pfeil The connection to the AC power is in the Fig. By the arrow 30 30 angedeutet. indicated. Mit der Einspeiseeinrichtung With the feed device 28 28 wird die Übertragung des Ladestroms von dem Wechselstromnetz an die Ladespule is the transmission of the charging current from the AC power to the charging coil 26 26 gesteuert, mittels welcher der Ladestrom induktiv an das Fahrzeug übertragen wird. controlled, by means of which the charging current is inductively transmitted to the vehicle. Parallel zu der Einspeiseeinrichtung Parallel to the feed device 28 28 ist eine Ladekommunikationseinrichtung is a charging communication device 32 32 angeordnet, welche eine Information über das Laden der Batterie arranged that information about the charging of the battery 16 16 bereitstellt. provides. Diese Information über das Laden wird über die Ladespule This information about the charging is via the charging coil 26 26 induktiv an das Fahrzeug übertragen. inductively transmitted to the vehicle.
  • Zum einen wird eine Information bezüglich des Ladezustandes oder der Ladegröße von der Fahrzeugkommunikationseinrichtung Firstly, information regarding the state of charge or the charge amount of the vehicle communication device 22 22 an die Ladekommunikationseinrichtung to the charging communication device 32 32 übermittelt. transmitted. Ausgehend von dieser Information kann die zeitliche Dauer des Bereitstellens, die Spannung und/oder die Amplitude des Ladestroms von der Einspeiseeinrichtung Based on this information, the time duration of the providing the voltage and / or the amplitude of the charging current of the feed device 28 28 eingestellt werden. be adjusted. Zum anderen wird diese Information über das Laden von der Ladekommunikationseinrichtung Secondly, this information is about loading the charging communication device 32 32 an die Fahrzeugkommunikationseinrichtung to the vehicle communication device 22 22 übermittelt. transmitted. Durch diese bidirektionale Kommunikation zwischen dem Fahrzeug und der Ladevorrichtung kann der Ladevorgang der Batterie Through this bi-directional communication between the vehicle and the charging device of the charging of the battery can 16 16 des Fahrzeugs besonders einfach und effektiv geregelt werden. the vehicle can be controlled particularly simply and effectively.
  • Ist die Batterie If the battery 16 16 des Fahrzeugs beispielsweise vollständig geladen, wird diese Information von der Fahrzeugkommunikationseinrichtung of the vehicle, for example, fully charged, this information is from the vehicle communication device 22 22 an die Ladekommunikationseinrichtung to the charging communication device 32 32 übermittelt. transmitted. In Folge dessen wird von der Einspeiseeinrichtung As a result, the feed device is of 28 28 der Ladestrom nicht mehr an die Ladespule the charging current is no longer at the charging coil 26 26 übertragen und somit der Ladevorgang der Batterie transmitted, and thus the charging of the battery 16 16 gestoppt. stopped. Ebenso kann auf diese Weise die Amplitude und/oder die zeitliche Dauer des Ladestroms bereits in der Ladevorrichtung durch die Einspeiseeinrichtung Similarly, the amplitude and / or the duration of the charging current is already in the loading device can in this way by the feed device 28 28 so geregelt werden, dass der entsprechende Ladestrom für den aktuellen Ladezustand der Batterie be controlled so that the appropriate charging current for the current state of charge of the battery 16 16 im Fahrzeug erzeugt wird. is generated in the vehicle.
  • Aus diesem Grund kann auf eine entsprechende Leistungselektronik zur Anpassung des Ladestroms verzichtet werden. For this reason, can be dispensed with a corresponding power electronics to adjust the charging current. Somit können die Bauteile und die damit verbundenen Kosten eingespart werden und zusätzlich das Gewicht des Fahrzeugs reduziert werden. Thus, the components and the related costs can be saved and additionally the weight of the vehicle can be reduced.
  • Die induktive Kopplung der Ladespule The inductive coupling of the charging coil 26 26 und der Fahrzeugspule and vehicle coil 18 18 werden einerseits zur Übertragung der elektrischen Energie und anderseits für eine Nahfeldkommunikation zwischen der Ladevorrichtung und dem Fahrzeug genutzt. on the one hand for the transmission of electrical energy and on the other hand, used for a near-field communication between the charging device and the vehicle. Aufgrund dieser Doppelfunktion können die ansonsten dafür benötigten Bauteile, deren Kosten und deren Zusatzgewicht eingespart werden. This combination of tasks that otherwise required for components, its costs and the additional weight can be saved.
  • Die Wicklungen und/oder die Kerne der Fahrzeugspule The windings and / or the cores of the vehicle coil 18 18 und der Ladespule and the charging coil 26 26 sollen so ausgelegt sein, dass sowohl der Ladestrom, als auch die Daten mit den jeweiligen Informationen übertragen werden können. should be designed so that both the charging current, and the data with the relevant information can be transmitted. Die Übermittlung der jeweiligen Information zwischen der Fahrzeugkommunikationseinrichtung The transmission of the respective information between the vehicle communication device 22 22 und der Ladekommunikationseinrichtung and the charging communication device 32 32 können beispielsweise durch eine Modulation des Wechselsignals des Ladestroms bzw. der Spannung oder durch Übermittlung einer entsprechenden Pulsfolge realisiert werden. can be realized for example by a modulation of the alternating signal of the charging current or the voltage or by transmission of a corresponding pulse sequence.
  • Die Nahfeldkommunikation kann ebenso zur Identifikation des Fahrzeugs und zur einer Kostenabrechnung genutzt werden. The near field can be used also for identification of the vehicle and an expense report. Hierzu können die Daten entsprechend verschlüsselt werden. For this, the data can be encrypted accordingly.
  • Bezugszeichenliste LIST OF REFERENCE NUMBERS
  • 10 10
    Stromkreis circuit
    12 12
    Stromkreis circuit
    14 14
    Linie line
    16 16
    Batterie battery
    18 18
    Fahrzeugspule vehicle coil
    20 20
    Gleichrichter rectifier
    22 22
    Fahrzeugkommunikationseinrichtung Vehicle communication device
    24 24
    Datenverbindung Data Connection
    26 26
    Ladespule charging coil
    28 28
    Einspeiseeinrichtung feed device
    30 30
    Pfeil arrow
    32 32
    Ladekommunikationseinrichtung Charging communication device
  • ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDED IN THE DESCRIPTION
  • Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. This list of references cited by the applicant is generated automatically and is included solely to inform the reader. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. The list is not part of the German patent or utility model application. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen. The DPMA is not liable for any errors or omissions.
  • Zitierte Patentliteratur Cited patent literature
    • US 4496896 A1 [0003] US 4496896 A1 [0003]

Claims (7)

  1. Fahrzeug mit – einer Batterie ( Vehicle having - a battery ( 16 16 ), – einer Fahrzeugspule ( ), - a vehicle coil ( 18 18 ) zum induktiven Aufnehmen eines Ladestroms für die Batterie ( ) For inductively receiving a charging current (for the battery 16 16 ), – einer Fahrzeugkommunikationseinrichtung ( ), - a vehicle communication device ( 22 22 ) zum Bereitstellen einer Information bezüglich des Ladezustands oder einer Ladegröße der Batterie ( ) (For providing information regarding the state of charge or a charge amount of the battery 16 16 ), dadurch gekennzeichnet , dass – die von der Fahrzeugkommunikationseinrichtung ( ), Characterized in that - the (from the vehicle communication device 22 22 ) bereitgestellte Information über die Fahrzeugspule ( ) Provided information on the vehicle coil ( 18 18 ) induktiv an eine fahrzeugexterne Ladevorrichtung übertragbar ist. ) Is inductively transferred to a vehicle-external charging device.
  2. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass das Fahrzeug einen Gleichrichter ( Vehicle according to claim 1, characterized in that the vehicle (a rectifier 20 20 ), insbesondere einen passiven Gleichrichter, zum Gleichrichten des Ladestroms für die Batterie ( ), In particular a passive rectifier, for rectifying the charging current (for the battery 16 16 ) umfasst. ) Includes.
  3. Ladevorrichtung zum Laden einer Batterie ( (Charging device for charging a battery 16 16 ) eines Fahrzeugs mit – einer Einspeiseinrichtung ( (A feed device -) of a vehicle with 28 28 ) zum Bereitstellen eines Ladestroms, – einer Ladekommunikationseinrichtung ( ) For providing a charging current, - (a charging communication device 32 32 ) zum Bereitstellen einer Information bezüglich des Ladens der Batterie ( ) (For providing information relating to the charging of the battery 16 16 ) und – einer Ladespule ( (A charging coil -) and 26 26 ), mit der der Ladestrom von der Einspeiseinrichtung ( ), (With which the charging current of the feed device 28 28 ) induktiv an das Fahrzeug übertragbar ist, dadurch gekennzeichnet, dass – die von der Ladekommunikationseinrichtung ( ) Is inductively transmitted to the vehicle, characterized in that - the (from the charging communication device 32 32 ) bereitgestellte Information über die Ladespule ( ) Provided information about the charging coil ( 26 26 ) induktiv an das Fahrzeug übertragbar ist. ) Is inductively transferred to the vehicle.
  4. Ladevorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die zeitliche Dauer des Bereitstellens, die Spannung und/oder die Amplitude des Ladestroms durch die Einspeiseinrichtung anhand einer über die Ladespule ( Loading device according to claim 3, characterized in that the duration of providing the voltage and / or the amplitude of the charging current (through the feed device using a through the charging coil 26 26 ) von dem Fahrzeug erhaltene Information einstellbar ist. ) Information obtained from the vehicle is adjustable.
  5. Verfahren zum Laden einer Batterie ( A method for charging a battery ( 16 16 ) eines Fahrzeugs durch – induktives Aufnehmen eines Ladestroms für die Batterie ( (Inductive receiving a charging current for the battery -) of a vehicle by 16 16 ) durch eine Fahrzeugspule ( ) (By a vehicle coil 18 18 ) und – Bereitstellen einer Information bezüglich des Ladezustands oder einer Ladegröße der Batterie ( ), And - providing an information concerning the state of charge or a charge amount of the battery ( 16 16 ), dadurch gekennzeichnet, dass – die bereitgestellte Information über die Fahrzeugspule ( ), Characterized in that - (the provided information on the vehicle coil 18 18 ) induktiv an eine fahrzeugexterne Ladevorrichtung übertragen wird. ) Is inductively transmitted to a vehicle-external charging device.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass zusätzliche Informationen bezüglich einer Identifikation des Fahrzeugs und/oder einer Kostenabrechnung über die Fahrzeugspule an die fahrzeugexterne Ladevorrichtung übertragen werden. A method according to claim 5, characterized in that additional information regarding an identification of the vehicle and / or a cost accounting on the vehicle coil to the vehicle-external charging device to be transferred.
  7. Verfahren zum Laden einer Batterie ( A method for charging a battery ( 16 16 ) eines Fahrzeugs durch – Bereitstellen eines Ladestroms, – Bereitstellen einer Information bezüglich des Ladens der Batterie ( ) Of a vehicle by - providing a charging current, - providing an information concerning the charging of the battery ( 16 16 ) und – induktives Übertragen des Ladestroms durch eine Ladespule ( ), And - inductively transmitting the charging current by a charging coil ( 26 26 ) an das Fahrzeug, dadurch gekennzeichnet, dass die bereitgestellte Information über die Ladespule ( ) To the vehicle, characterized in that the provided information about the charging coil ( 26 26 ) induktiv an das Fahrzeug übertragen wird. ) Is inductively transmitted to the vehicle.
DE201110010049 2011-02-01 2011-02-01 Vehicle e.g. electric vehicle, has vehicle communication unit providing information about charging condition or charging parameter of battery, where information is inductively transmitted to charging device over vehicle coil Pending DE102011010049A1 (en)

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DE102016212900A1 (en) 2016-07-14 2018-01-18 Robert Bosch Gmbh Method for operating a loading device for inductive energy transmission
DE102016212902A1 (en) 2016-07-14 2018-01-18 Robert Bosch Gmbh Method for operating a monitoring device of an inductive power transfer unit
DE102016212890A1 (en) 2016-07-14 2018-01-18 Robert Bosch Gmbh Method for operating a loading device
DE102016213055A1 (en) 2016-07-18 2018-01-18 Robert Bosch Gmbh Method for operating a safety device
WO2018077580A1 (en) 2016-10-26 2018-05-03 Robert Bosch Gmbh Protection device for an inductive energy transmission system and inductive energy transmission system
DE102016222529A1 (en) 2016-11-16 2018-05-17 Robert Bosch Gmbh Device for an inductive power transfer system, inductive power transmission system and charging apparatus for an electric energy storage
DE102016222530A1 (en) 2016-11-16 2018-05-17 Robert Bosch Gmbh Protection device for an inductive power transfer system and inductive power transfer system
WO2018091191A1 (en) 2016-11-16 2018-05-24 Robert Bosch Gmbh Device for an inductive energy transmission system, inductive energy transmission system, and charging device for a stored electrical energy source

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