DE102012007323A1 - Wheel for inductive transmission of energy for, e.g. motor car, has an integrally formed wheel disc, in which several metal cores having coils and electrical terminal for coils in which current is induced are arranged circumferentially - Google Patents

Wheel for inductive transmission of energy for, e.g. motor car, has an integrally formed wheel disc, in which several metal cores having coils and electrical terminal for coils in which current is induced are arranged circumferentially Download PDF

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Publication number
DE102012007323A1
DE102012007323A1 DE201210007323 DE102012007323A DE102012007323A1 DE 102012007323 A1 DE102012007323 A1 DE 102012007323A1 DE 201210007323 DE201210007323 DE 201210007323 DE 102012007323 A DE102012007323 A DE 102012007323A DE 102012007323 A1 DE102012007323 A1 DE 102012007323A1
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Prior art keywords
coils
wheel
energy
wheel disc
induced
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DE201210007323
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German (de)
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DE102012007323B4 (en
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Michael Hunger
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Audi AG
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Audi AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/002—Disc wheels, i.e. wheels with load-supporting disc body characterised by the shape of the disc
    • B60B3/007—Disc wheels, i.e. wheels with load-supporting disc body characterised by the shape of the disc in the intermediate section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
    • B60B19/006—Magnetic wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/90—Providing or changing
    • B60B2900/921—Conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/90—Providing or changing
    • B60B2900/931—Magnetic effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/11—Passenger cars; Automobiles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The wheel (1) comprises a rim (2), and an integrally formed wheel disc (3), in which several metal cores having coils (4) and an electrical terminal for the coils in which current is induced are arranged circumferentially. The coils are arranged in annular manner. The wheel disc is formed surrounding a coil ring (5). The coils are electrically connected to a transfer unit (7) to provide induced current to the power storage and/or the load of motor car (8). The wheel cooperates with an external stationary charging device (10) which is adapted to generate an alternating magnetic field.

Description

Die Erfindung betrifft ein Rad, insbesondere für ein Kraftfahrzeug, das zur induktiven Übertragung von Energie ausgebildet ist, umfassend eine Felge und eine einstückig damit ausgebildete Radscheibe.The invention relates to a wheel, in particular for a motor vehicle, which is designed for the inductive transmission of energy, comprising a rim and an integrally formed wheel disc.

Bei bestimmten Kraftfahrzeugen, insbesondere bei Fahrzeugen mit einem elektrischen Antrieb oder Hybridfahrzeugen, ist es erforderlich, einen elektrischen Energiespeicher an eine Stromquelle anzuschließen und aufzuladen. Um die Akzeptanz bei Benutzern zu erhöhen und den Aufladevorgang möglichst einfach zu gestalten, sind bereits induktive Ladegeräte und Verfahren vorgeschlagen worden. Bei einer induktiven Aufladung entfällt eine mechanische Ankopplung des Energiespeichers an eine Ladestation, beispielsweise durch Einsetzen eines Steckers in eine Ladebuchse.In certain motor vehicles, in particular in vehicles with an electric drive or hybrid vehicles, it is necessary to connect and charge an electrical energy storage device to a power source. In order to increase the acceptance among users and to make the charging process as simple as possible, inductive chargers and methods have already been proposed. In an inductive charging eliminates a mechanical coupling of the energy storage to a charging station, for example by inserting a plug into a charging socket.

Bei einem induktiven Ladevorgang wird von einer Ladestation ein magnetisches Wechselfeld erzeugt, dazu werden einen Metallkern aufweisende Spulen benutzt. Fahrzeugseitig ist wenigstens eine Sekundärspule vorgesehen, die in das von der Primärspule erzeugte magnetische Wechselfeld gebracht wird. Das magnetische Wechselfeld induziert eine Spannung in der Sekundärspule, so dass ein Strom fließt, der einem Energiespeicher oder einem Verbraucher des Kraftfahrzeugs zur Verfügung gestellt werden kann.In an inductive charging a magnetic alternating field is generated by a charging station, to a metal core having coils are used. On the vehicle side, at least one secondary coil is provided, which is brought into the magnetic alternating field generated by the primary coil. The alternating magnetic field induces a voltage in the secondary coil, so that a current flows, which can be made available to an energy store or a consumer of the motor vehicle.

In der WO 2010/057799 A1 wird eine Einrichtung zur Übertragung elektrischer Energie vorgeschlagen, die primär für Eisenbahnen geeignet ist. Ein induktives Rad, auf das Energie übertragen werden soll, umfasst zwei voneinander beabstandete Radscheiben, die magnetisch leitfähig sind, zwischen denen ein Eisenkern angeordnet ist.In the WO 2010/057799 A1 a device is proposed for the transmission of electrical energy, which is primarily suitable for railways. An inductive wheel to which energy is to be transferred comprises two spaced-apart wheel disks, which are magnetically conductive, between which an iron core is arranged.

Aus der Druckschrift DE 20 2008 015 230 U1 ist ein induktives Rad bekannt, durch das beim Befahren eines Bodeninduktors Energie über den Bodeninduktor auf das Rad übertragen werden kann.From the publication DE 20 2008 015 230 U1 An inductive wheel is known, by means of which energy can be transmitted to the wheel via the ground inductor when driving on a ground inductor.

In der DE 20 2010 004 841 U1 wird der Vorschlag gemacht, ein Spulengewebe in den Reifenmantel des Fahrzeugs einzulaminieren, so dass beim Parken Energie vom Untergrund über das Spulengewebe des Reifens zu einem Fahrzeug, insbesondere einem Elektrofahrzeug, übertragen werden kann.In the DE 20 2010 004 841 U1 It is proposed to laminate a coil fabric into the tire casing of the vehicle so that energy can be transferred from the ground via the coil fabric of the tire to a vehicle, in particular an electric vehicle, during parking.

Es ist allerdings fraglich, ob ein in einem Reifen eingebettetes Spulengewebe den großen mechanischen und thermischen Belastungen standhalten kann, denen ein Reifen ausgesetzt ist.However, it is questionable whether a coil fabric embedded in a tire can withstand the large mechanical and thermal stresses experienced by a tire.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Rad, insbesondere für ein Kraftfahrzeug, anzugeben, mit dem die induktive Übertragung von Energie leichter durchgeführt werden kann.The invention is therefore based on the object of specifying a wheel, in particular for a motor vehicle, with which the inductive transmission of energy can be carried out more easily.

Zur Lösung dieser Aufgabe ist bei einem Rad der eingangs genannten Art erfindungsgemäß vorgesehen, dass es eine Mehrzahl von in Umfangsrichtung angeordneten, einen Metallkern aufweisenden Spulen und wenigstens einen elektrischen Anschluss für induzierten Strom aufweist.To solve this problem is provided according to the invention in a wheel of the type mentioned that it has a plurality of arranged in the circumferential direction, a metal core having coils and at least one electrical connection for induced current.

Die Erfindung beruht auf der Idee, dass die induktive Übertragung von Energie von einer externen Ladestation oder dergleichen wesentlich einfacher und zuverlässiger erfolgen kann, indem die Energie über das Rad übertragen wird, das eine Mehrzahl von Spulen aufweist. Die Spulen sind an dem Rad mechanisch wesentlich besser geschützt im Vergleich zu einer Anordnung im Reifen, so dass eine hohe Lebensdauer erwartet werden kann.The invention is based on the idea that the inductive transmission of energy from an external charging station or the like can be much easier and more reliable by transmitting the energy across the wheel having a plurality of coils. The coils are mechanically much better protected on the wheel compared to an arrangement in the tire, so that a long life can be expected.

Gemäß einer Weiterbildung der Erfindung kann es vorgesehen sein, dass die mehreren Spulen einen ringförmigen, die Radscheibe umgebenden Spulenring bilden. Dementsprechend kann der Spulenring als separates Bauteil ausgebildet sein, das nachträglich an einem Rad montiert wird. Auf diese Weise ist auch die Nachrüstung herkömmlicher Räder ohne Weiteres möglich. Da der Spulenring eine Mehrzahl von in Umfangsrichtung verteilt angeordneten einzelnen Spulen aufweist, kann bei jeder Stellung des Rads im Ruhezustand die gewünschte induktive Aufladung stattfinden.According to one embodiment of the invention, it may be provided that the plurality of coils form an annular coil ring surrounding the wheel disc. Accordingly, the coil ring may be formed as a separate component, which is subsequently mounted on a wheel. In this way, the retrofitting of conventional wheels is readily possible. Since the coil ring has a plurality of circumferentially distributed individual coils, the desired inductive charging can take place at any position of the wheel at rest.

Eine Weiterbildung der Erfindung sieht vor, dass die Spulen elektrisch mit einer Übergangseinheit verbunden sind, um den induzierten Strom einem Energiespeicher und/oder einem Verbraucher des Kraftfahrzeugs zur Verfügung zu stellen. Die Übergangseinheit verbindet somit die Spulen elektrisch mit dem Bordnetz des Kraftfahrzeugs, die Übergangseinheit kann entsprechende Leitungen, Steckkontakte, Schleifringübertrager oder dergleichen aufweisen. Zweckmäßig ist die Übergangseinheit mit einem Energiespeicher, insbesondere einem elektrischen oder elektrochemischen Energiespeicher, verbunden. Zusätzlich kann eine Ladesteuerung vorgesehen sein, die den Ladevorgang steuert und überwacht. Die Ladesteuerung beendet den Ladevorgang beim Erreichen eines festgelegten Grenzwerts, ebenso kann die Ladesteuerung den Beginn eines Ladevorgangs auslösen, sobald ein festgelegter Grenzwert für eine Spannung oder eine Energiemenge unterschritten wird.A development of the invention provides that the coils are electrically connected to a transition unit in order to provide the induced current to an energy store and / or a consumer of the motor vehicle. The transition unit thus connects the coils electrically to the electrical system of the motor vehicle, the transition unit may have corresponding lines, plug contacts, slip ring or the like. The transition unit is expediently connected to an energy store, in particular an electrical or electrochemical energy store. In addition, a charging control can be provided which controls and monitors the charging process. The charge controller stops charging when a set limit is reached, and the charge controller may initiate charging as soon as a voltage or energy limit is exceeded.

Bei dem erfindungsgemäßen Rad wird es ganz besonders bevorzugt, dass es zum Zusammenwirken mit einer externen, vorzugsweise stationären Ladevorrichtung ausgebildet ist, die zum Erzeugen eines magnetischen Wechselfelds ausgebildet ist. Die externe Ladevorrichtung kann beispielsweise auf oder im Boden eines Parkplatzes, einer Garage, eines Parkhauses oder dergleichen angeordnet sein, so dass nach dem Abstellen des Fahrzeugs oberhalb der Ladevorrichtung der induktive Ladevorgang beginnt. Die Ladevorrichtung kann eine mechanische Führung aufweisen, so dass das Fahrzeug beim Abstellen exakt an der richtigen Stelle, oberhalb der Primärspulen der Ladevorrichtung, abgestellt werden kann. Wenn die Sekundärspulen lediglich einen geringen Abstand zu den Primärspulen aufweisen, kann der Ladevorgang mit hohem Wirkungsgrad durchgeführt werden.In the case of the wheel according to the invention, it is very particularly preferred that it is designed to cooperate with an external, preferably stationary charging device, which is designed to generate an alternating magnetic field. The external charging device may be, for example be arranged on or in the bottom of a parking lot, a garage, a parking garage or the like, so that after parking the vehicle above the charging device of the inductive charging begins. The loading device may have a mechanical guide, so that the vehicle when parking exactly at the right place, above the primary coils of the charger, can be turned off. If the secondary coils have only a small distance to the primary coils, the charging process can be carried out with high efficiency.

Daneben betrifft die Erfindung ein Kraftfahrzeug. Das erfindungsgemäße Kraftfahrzeug weist eine oder mehrere Räder der beschriebenen Art auf.In addition, the invention relates to a motor vehicle. The motor vehicle according to the invention has one or more wheels of the type described.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen erläutert. Die Zeichnungen sind schematische Darstellungen und zeigen:The invention will be explained below with reference to an embodiment with reference to the drawings. The drawings are schematic representations and show:

1 eine Seitenansicht eines erfindungsgemäßen Rads; und 1 a side view of a wheel according to the invention; and

2 ein erfindungsgemäßes Kraftfahrzeug mit erfindungsgemäßen Rädern während eines Aufladevorgangs. 2 an inventive motor vehicle with wheels according to the invention during a charging process.

Das in 1 in einer Seitenansicht gezeigte Rad 1 umfasst im Wesentlichen eine Felge (Felgenband) 2 und eine Radscheibe (Radschüssel) 3. Felge 2 und Radscheibe 3 sind abschnittsweise miteinander verschweißt, wodurch das einteilige, integrale Rad 1 gebildet wird.This in 1 in a side view wheel shown 1 essentially comprises a rim (rim tape) 2 and a wheel disc (wheel disc) 3 , rim 2 and wheel disc 3 are welded together in sections, creating the one-piece, integral wheel 1 is formed.

Das Rad 1 weist eine Mehrzahl von in Umfangsrichtung angeordneten Spulen 4 auf, die einen ringförmigen, die Radscheibe 3 umgebenden Spulenring 5 bilden. Jede der Spulen 4 weist einen Metallkern auf. Der Spulenring 5 wird separat hergestellt und anschließend an dem Rad 1 angebracht. Die mehreren Spulen 4 sind mit gleichem Abstand zueinander in Umfangsrichtung des Rads 1 angeordnet. In 1 ist ferner ein aus zwei Leitern 6 gebildeter elektrischer Anschluss dargestellt. Die Leiter 6 münden in einer ebenfalls schematisch dargestellten Übergangseinheit 7, über die das Rad 1 mit dem Bordnetz eines Kraftfahrzeugs und/oder einem Energiespeicher verbunden ist.The wheel 1 has a plurality of circumferentially arranged coils 4 on, the one annular, the wheel disc 3 surrounding coil ring 5 form. Each of the coils 4 has a metal core. The coil ring 5 is made separately and then attached to the wheel 1 appropriate. The multiple coils 4 are equidistant from each other in the circumferential direction of the wheel 1 arranged. In 1 is also one of two ladders 6 formed electrical connection shown. The ladder 6 lead into a transition unit, also shown schematically 7 about which the wheel 1 is connected to the electrical system of a motor vehicle and / or an energy storage.

Aus Gründen der Übersichtlichkeit ist in 1 kein Reifen dargestellt. Nach der Herstellung des Rads 1 wird der Reifen auf das Rad 1 aufgezogen.For clarity, is in 1 no tire shown. After the production of the wheel 1 the tire gets on the wheel 1 reared.

2 zeigt ein Kraftfahrzeug 8, das mehrere der in 1 gezeigten Räder 1 aufweist. Jedes Rad 1 weist einen Reifen 9 auf. Das Kraftfahrzeug 8 ist auf einer Ladevorrichtung 10 geparkt, die Primärspulen 11 aufweist. Im Bereich einer Bodenplatte 12 sind Schienen 13 vorgesehen, die die genaue Positionierung des Kraftfahrzeugs 8 auf der Bodenplatte 12 über den Primärspulen 11 erleichtern. Die Primärspulen 11 erzeugen ein magnetisches Wechselfeld, durch das in den Spulen 4 des Rads 1, die als Sekundärspulen dienen, eine Spannung induziert wird. Der auf diese Weise von den Primärspulen 11 auf die Spulen (Sekundärspulen) 4 übertragene Strom kann über die Leiter 6 abgegriffen und über die Übergangseinheit 7 dem Bordnetz des Kraftfahrzeugs 8 zugeführt werden. 2 shows a motor vehicle 8th that several of the 1 shown wheels 1 having. Every bike 1 has a tire 9 on. The car 8th is on a loader 10 parked, the primary coils 11 having. In the area of a floor plate 12 are rails 13 provided that the exact positioning of the motor vehicle 8th on the bottom plate 12 over the primary coils 11 facilitate. The primary coils 11 generate an alternating magnetic field through which in the coils 4 of the wheel 1 , which serve as secondary coils, a voltage is induced. The way of the primary coils 11 on the coils (secondary coils) 4 transmitted electricity can be via the conductors 6 tapped and about the transition unit 7 the electrical system of the motor vehicle 8th be supplied.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • WO 2010/057799 A1 [0004] WO 2010/057799 A1 [0004]
  • DE 202008015230 U1 [0005] DE 202008015230 U1 [0005]
  • DE 202010004841 U1 [0006] DE 202010004841 U1 [0006]

Claims (5)

Rad (1), insbesondere für ein Kraftfahrzeug (8), das zur induktiven Übertragung von Energie ausgebildet ist, umfassend eine Felge (2) und eine einstückig damit ausgebildete Radscheibe (3), dadurch gekennzeichnet, dass es eine Mehrzahl von in Umfangsrichtung angeordneten, einen Metallkern aufweisenden Spulen (4) und wenigstens einen elektrischen Anschluss für in den Spulen (4) induzierten Strom aufweist.Wheel ( 1 ), in particular for a motor vehicle ( 8th ), which is designed for the inductive transmission of energy, comprising a rim ( 2 ) and an integrally formed wheel disc ( 3 ), characterized in that it comprises a plurality of circumferentially arranged, a metal core having coils ( 4 ) and at least one electrical connection for in the coils ( 4 ) induced current. Rad nach Anspruch 1, dadurch gekennzeichnet, dass die mehreren Spulen (4) einen ringförmigen, die Radscheibe (3) umgebenden Spulenring bilden.Wheel according to claim 1, characterized in that the plurality of coils ( 4 ) an annular, the wheel disc ( 3 ) form surrounding coil ring. Rad nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spulen (4) elektrisch mit einer Übergangseinheit (7) verbunden sind, um den induzierten Strom einem Energiespeicher und/oder einem Verbraucher des Kraftfahrzeugs (8) zur Verfügung zu stellen.Wheel according to claim 1 or 2, characterized in that the coils ( 4 ) electrically with a transition unit ( 7 ) are connected to the induced current an energy storage and / or a consumer of the motor vehicle ( 8th ) to provide. Rad nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es zum Zusammenwirken mit einer externen, vorzugsweise stationären, Ladevorrichtung (10) ausgebildet ist, die zum Erzeugen eines magnetischen Wechselfelds ausgebildet ist.Wheel according to one of the preceding claims, characterized in that it is designed to cooperate with an external, preferably stationary, loading device ( 10 ) is formed, which is designed to generate an alternating magnetic field. Kraftfahrzeug, dadurch gekennzeichnet, dass es ein oder mehrere Räder (1) nach einem der Patentansprüche 1 bis 4 aufweist.Motor vehicle, characterized in that it has one or more wheels ( 1 ) according to one of the claims 1 to 4.
DE102012007323.2A 2012-04-12 2012-04-12 Wheel, in particular for a motor vehicle Active DE102012007323B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102012007323.2A DE102012007323B4 (en) 2012-04-12 2012-04-12 Wheel, in particular for a motor vehicle

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CN105529834A (en) * 2014-12-12 2016-04-27 比亚迪股份有限公司 Wireless charging system for electric forklift, and electric forklift
CN106143185A (en) * 2016-06-28 2016-11-23 浙江大学 Wireless power supply system in a kind of novel electric vehicle based on tire traveling
CN111016691A (en) * 2018-10-10 2020-04-17 现代自动车株式会社 Vehicle-to-vehicle wireless charging

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DE102007001327A1 (en) * 2007-01-02 2008-07-03 Clean Mobile Gmbh Vehicle e.g. wheelchair, has impellers arranged in frame, where one of impellers includes circularly formed hub, which includes magnet core, and linear motors i.e. direct current motors, provided for driving impellers
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CN105529834A (en) * 2014-12-12 2016-04-27 比亚迪股份有限公司 Wireless charging system for electric forklift, and electric forklift
CN106143185A (en) * 2016-06-28 2016-11-23 浙江大学 Wireless power supply system in a kind of novel electric vehicle based on tire traveling
CN111016691A (en) * 2018-10-10 2020-04-17 现代自动车株式会社 Vehicle-to-vehicle wireless charging

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