JP2013085322A - Vehicle power transmission device and vehicle power supply system - Google Patents

Vehicle power transmission device and vehicle power supply system Download PDF

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JP2013085322A
JP2013085322A JP2011221777A JP2011221777A JP2013085322A JP 2013085322 A JP2013085322 A JP 2013085322A JP 2011221777 A JP2011221777 A JP 2011221777A JP 2011221777 A JP2011221777 A JP 2011221777A JP 2013085322 A JP2013085322 A JP 2013085322A
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wireless power
unit
resonance frequency
power transmission
coil
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Hiroaki Ishizaka
博昭 石坂
Kiyoshi Saito
清 齋藤
Keisuke Kawahara
啓輔 川原
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Furukawa Electric Co Ltd
Furukawa Automotive Systems Inc
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Furukawa Electric Co Ltd
Furukawa Automotive Systems Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a vehicle power transmission device and vehicle power supply system in which it can be selected by the power reception side or power transmission side whether or not power to be supplied to a load is received by radio transmission.SOLUTION: A vehicle power transmission device 102 comprises one radio power transmission part 110 and one or two or more radio power reception parts 120, where power transmission by radio from the one radio power transmission part 110 to the plurality of radio power reception parts 120 is possible. The radio power reception part 120 comprises a reception side resonance frequency adjustment part 124 for adjusting circuit constants of a secondary side resonance coil 122 and reception side capacitor 123 in order to make an individual reception side resonance frequency f2 be adjustable. Also, the radio power transmission part 110 can make a transmission side resonance frequency f1 be adjustable.

Description

本発明は、車両用電源から車両に搭載された電気負荷に電力を非接触で供給するための車両用電力伝送装置及び車両用電源システムに関するものである。   The present invention relates to a vehicular power transmission device and a vehicular power supply system for supplying electric power from a vehicular power supply to an electric load mounted on the vehicle in a contactless manner.

車両に搭載されている電気負荷(以下では、単に負荷という)に電力を供給するために、車両用電源であるバッテリから各負荷にワイヤハーネス（Ｗ／Ｈ）が配索されている。このワイヤハーネスの配線をなくして結線作業を不要とするために、電力を無線伝送する技術が注目されている。無線電力伝送により、送電側と受電側との間を非接触として配線を不要とすることができる。   In order to supply electric power to an electric load (hereinafter simply referred to as a load) mounted on a vehicle, a wire harness (W / H) is routed from a battery serving as a vehicle power source to each load. In order to eliminate the wiring harness and eliminate the need for wiring work, attention has been paid to a technique for wirelessly transmitting power. With wireless power transmission, the power transmission side and the power reception side are not contacted, and wiring can be made unnecessary.

無線電力伝送を用いた従来技術として、たとえば特許文献１、２に記載されている技術が知られている。特許文献１には、磁気共鳴により受電する受電側にインピーダンス可変回路を設けており、これを用いて入力インピーダンスの変化を抑制する技術が記載されている。また特許文献２には、入力インピーダンスの調整を送信側で行う技術が開示されている。   As conventional techniques using wireless power transmission, for example, techniques described in Patent Documents 1 and 2 are known. Patent Document 1 describes a technique in which an impedance variable circuit is provided on a power receiving side that receives power by magnetic resonance, and a change in input impedance is suppressed using this circuit. Patent Document 2 discloses a technique for adjusting input impedance on the transmission side.

特開２０１０−１４１９７７号公報JP 2010-141977 A 特開２０１０−１５８１５１号公報JP 2010-158151 A

しかしながら、特許文献１、２に記載されている非接触電力伝送装置では、交流電源に接続された送電側の装置から受電側の装置に無線電力が１対１で伝送されるため、受電が必要な負荷をすべて１つの受電側装置に接続する必要がある。そのため、受電側装置に接続される負荷が増えると、無線電力伝送ではそれぞれに十分な容量の電力を供給できなくなるおそれがある。特に、重要な負荷等の電源を優先的に確保したり、車両の走行状態等に応じて特定の負荷に電力を優先的に配分するといった柔軟な電源制御が困難となる。   However, in the non-contact power transmission devices described in Patent Documents 1 and 2, wireless power is transmitted one-to-one from the power transmission side device connected to the AC power source to the power reception side device, so power reception is necessary. Must be connected to a single power receiving device. For this reason, when the load connected to the power receiving side device increases, there is a possibility that sufficient power may not be supplied to each of the wireless power transmission. In particular, it is difficult to perform flexible power control such as preferentially securing a power source such as an important load or preferentially allocating power to a specific load according to the traveling state of the vehicle.

本発明は上記問題を解決するためになされたものであり、負荷に供給する電力を無線伝送で受電するか否かを少なくとも受電側で選択することが可能な車両用電力伝送装置及び車両用電源システムを提供することを目的とする。   The present invention has been made to solve the above-described problem, and is a vehicle power transmission device and a vehicle power supply that can select at least the power receiving side whether or not to receive power supplied to a load by wireless transmission. The purpose is to provide a system.

本発明の車両用電力伝送装置の第１の態様は、車両用電源に接続されて所定の共振周波数で無線電力を発生させる無線電力送電部と、前記無線電力送電部から前記無線電力を受電すると接続先の負荷に給電する無線電力受電部と、を備え、前記無線電力受電部は、共振周波数を調整するための受電側共振周波数調整部を有しており、前記受電側共振周波数調整部により前記無線電力受電部の共振周波数が前記無線電力送信部の共振周波数に略等しくなるように調整されると、前記無線電力送信部から前記無線電力受電部に磁気共鳴により前記無線電力が伝送されることを特徴とする。   According to a first aspect of the vehicle power transmission device of the present invention, a wireless power transmission unit that is connected to a vehicle power source and generates wireless power at a predetermined resonance frequency, and receives the wireless power from the wireless power transmission unit. A wireless power receiving unit that supplies power to a connection destination load, and the wireless power receiving unit includes a power receiving side resonance frequency adjusting unit for adjusting a resonance frequency, and the power receiving side resonance frequency adjusting unit When the resonance frequency of the wireless power reception unit is adjusted to be approximately equal to the resonance frequency of the wireless power transmission unit, the wireless power is transmitted from the wireless power transmission unit to the wireless power reception unit by magnetic resonance. It is characterized by that.

本発明の車両用電力伝送装置の他の態様は、前記無線電力送電部は、前記車両用電源から交流電圧が印加される１次コイルと、前記１次コイルに電磁界結合する１次側共鳴コイルと、を備え、前記無線電力受電部は、前記負荷に接続された２次コイルと、前記２次コイルに電磁界結合する２次側共鳴コイルと、を備え、前記受電側共振周波数調整部により前記無線電力受電部の共振周波数が前記無線電力送電部の共振周波数と略等しくなるように調整されると、前記１次側共鳴コイルと前記２次側共鳴コイルとの間で磁気共鳴することを特徴とする。   In another aspect of the vehicle power transmission device of the present invention, the wireless power transmission unit includes a primary coil to which an AC voltage is applied from the vehicle power supply, and a primary side resonance that is electromagnetically coupled to the primary coil. The wireless power receiving unit includes a secondary coil connected to the load, and a secondary resonance coil electromagnetically coupled to the secondary coil, and the power reception resonance frequency adjusting unit When the resonance frequency of the wireless power receiving unit is adjusted to be approximately equal to the resonance frequency of the wireless power transmission unit, magnetic resonance occurs between the primary resonance coil and the secondary resonance coil. It is characterized by.

本発明の車両用電力伝送装置の他の態様は、前記無線電力受電部は、前記２次側共鳴コイルに接続された受電側可変コンデンサを有しており、前記受電側共振周波数調整部は、前記受電側可変コンデンサの静電容量を変更することで前記無線電力受電部の共振周波数を調整することを特徴とする。   In another aspect of the vehicle power transmission device of the present invention, the wireless power receiving unit includes a power receiving side variable capacitor connected to the secondary resonance coil, and the power receiving side resonance frequency adjusting unit includes: The resonance frequency of the wireless power receiving unit is adjusted by changing the capacitance of the power receiving side variable capacitor.

本発明の車両用電力伝送装置の他の態様は、前記２次側共鳴コイルは、誘導係数の変更が可能な可変コイル（インダクタ）であり、前記受電側共振周波数調整部は、前記２次側共鳴コイルの誘導係数を変更することで前記無線電力受電部の共振周波数を調整することを特徴とする。   In another aspect of the vehicle power transmission device of the present invention, the secondary resonance coil is a variable coil (inductor) capable of changing an induction coefficient, and the power reception resonance frequency adjusting unit is the secondary side. The resonance frequency of the wireless power receiving unit is adjusted by changing the induction coefficient of the resonance coil.

本発明の車両用電力伝送装置の他の態様は、前記無線電力受電部を２以上備え、前記受電側共振周波数調整部により共振周波数が前記無線電力送電部の共振周波数に略等しくなるように調整された前記無線電力受電部が、前記無線電力送電部から前記無線電力を受電することを特徴とする。   Another aspect of the vehicle power transmission device of the present invention includes two or more wireless power receiving units, and the power receiving side resonance frequency adjusting unit adjusts the resonance frequency to be substantially equal to the resonance frequency of the wireless power transmitting unit. The wireless power receiving unit is configured to receive the wireless power from the wireless power transmitting unit.

本発明の車両用電力伝送装置の他の態様は、前記無線電力送電部は、共振周波数を調整するための送電側共振周波数調整部を有しており、前記送電側共振周波数調整部により前記無線電力送電部の共振周波数が前記無線電力受電部の共振周波数と略等しくなるように調整されると、前記１次側共鳴コイルと前記２次側共鳴コイルとの間で磁気共鳴することを特徴とする。   In another aspect of the vehicle power transmission device of the present invention, the wireless power transmission unit includes a power transmission side resonance frequency adjustment unit for adjusting a resonance frequency, and the power transmission side resonance frequency adjustment unit performs the wireless transmission. When the resonance frequency of the power transmission unit is adjusted to be substantially equal to the resonance frequency of the wireless power reception unit, magnetic resonance occurs between the primary side resonance coil and the secondary side resonance coil. To do.

本発明の車両用電力伝送装置の他の態様は、前記無線電力送電部は、前記１次側共鳴コイルに接続された送電側可変コンデンサを有しており、前記送電側共振周波数調整部は、前記送電側可変コンデンサの静電容量を変更することで前記無線電力送電部の共振周波数を調整することを特徴とする。   In another aspect of the vehicle power transmission device of the present invention, the wireless power transmission unit includes a power transmission side variable capacitor connected to the primary side resonance coil, and the power transmission side resonance frequency adjustment unit includes: The resonance frequency of the wireless power transmission unit is adjusted by changing the capacitance of the power transmission side variable capacitor.

本発明の車両用電力伝送装置の他の態様は、前記１次側共鳴コイルは、誘導係数の変更が可能な可変コイル（インダクタ）であり、前記無線電力送電部は前記１次側共鳴コイルの誘導係数を変更することで前記無線電力送電部の共振周波数を調整することを特徴とする。   According to another aspect of the vehicle power transmission device of the present invention, the primary resonance coil is a variable coil (inductor) capable of changing an induction coefficient, and the wireless power transmission unit is configured to be the primary resonance coil. The resonance frequency of the wireless power transmission unit is adjusted by changing an induction coefficient.

本発明の車両用電力伝送装置の他の態様は、１以上の前記無線電力受電部のそれぞれの前記受電側共振周波数調整部に対して共振周波数の変更を制御する統括制御部をさらに備えていることを特徴とする。   Another aspect of the vehicle power transmission device of the present invention further includes an overall control unit that controls the change of the resonance frequency for each of the power reception-side resonance frequency adjustment units of the one or more wireless power reception units. It is characterized by that.

本発明の車両用電源システムの第１の態様は、交流電力を供給する車両用電源と、上記態様のいずれか１つに記載の車両用電力伝送装置と、を備えることを特徴とする。   A first aspect of the vehicular power supply system of the present invention includes the vehicular power supply that supplies AC power, and the vehicular power transmission device according to any one of the above aspects.

本発明によれば、負荷に供給する電力を無線伝送で受電するか否かを受電側もしくは送電側で選択することが可能な車両用電力伝送装置及び車両用電源システムを提供することができる。   According to the present invention, it is possible to provide a vehicular power transmission device and a vehicular power supply system capable of selecting on the power receiving side or the power transmission side whether or not the power supplied to the load is received by radio transmission.

本発明の第１実施形態に係る車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。It is a block diagram which shows the structure of the vehicle electric power transmission apparatus and vehicle power supply system which concern on 1st Embodiment of this invention. 複数の無線電力受電部のそれぞれの２次側共鳴コイルの共振周波数を調整した一例を示すブロック図である。It is a block diagram which shows an example which adjusted the resonant frequency of each secondary side resonance coil of several wireless power receiving part. 本発明の第２実施形態に係る車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。It is a block diagram which shows the structure of the vehicle electric power transmission apparatus and vehicle power supply system which concern on 2nd Embodiment of this invention. 本発明の第３実施形態に係る車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。It is a block diagram which shows the structure of the vehicle electric power transmission apparatus and vehicle power supply system which concern on 3rd Embodiment of this invention.

本発明の好ましい実施の形態における車両用電力伝送装置及び車両用電源システムについて、図面を参照して詳細に説明する。なお、同一機能を有する各構成部については、図示及び説明簡略化のため、同一符号を付して示す。   A vehicle power transmission device and a vehicle power supply system according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. In addition, about each component which has the same function, the same code | symbol is attached | subjected and shown for simplification of illustration and description.

（第１実施形態）
本発明の第１の実施形態に係る車両用電力伝送装置及び車両用電源システムを、図１を用いて説明する。図１は、本実施形態の車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。車両用電源システム１００は、車両用電源１０１と、車両用電力伝送装置１０２とを備え、車両用電力伝送装置１０２が車両用電源１０１から受電した電力を負荷１０に供給する構成となっている。 (First embodiment)
A vehicle power transmission device and a vehicle power supply system according to a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of a vehicle power transmission device and a vehicle power supply system according to the present embodiment. The vehicle power supply system 100 includes a vehicle power supply 101 and a vehicle power transmission device 102, and is configured to supply power received by the vehicle power transmission device 102 from the vehicle power supply 101 to the load 10.

本実施形態の車両用電力伝送装置１０２は、１つの無線電力送電部１１０と、１または２以上の無線電力受電部１２０とを備えており、１つの無線電力送電部１１０から複数の無線電力受電部１２０に無線で電力伝送することが可能に構成されている。図１に示す車両用電力伝送装置１０２では、一例として、３つの無線電力受電部１２０が備えられた構成としている。３つの無線電力受電部１２０（それぞれを１２０−１〜３とする）には、それぞれ負荷１０(それぞれを１０−１〜３とする）が接続されている。   The vehicle power transmission device 102 of the present embodiment includes one wireless power transmission unit 110 and one or more wireless power reception units 120, and a plurality of wireless power receptions from one wireless power transmission unit 110. The unit 120 is configured to be able to transmit power wirelessly. The vehicle power transmission device 102 shown in FIG. 1 has a configuration in which three wireless power receiving units 120 are provided as an example. Loads 10 (each 10-1 to 3) are connected to the three wireless power receiving units 120 (each 120-1 to 3).

無線電力受電部１２０は、電力供給を受ける負荷１０を優先度等に基づいてグループ分けし、それぞれのグループに対応させてグループ数だけ設けることができる。車両に搭載されている負荷１０には、安全走行に必要な優先度の高いものから、オーディオ機器等の優先度の低いものまであり、それぞれの優先度等に基づいて負荷１０をグループ分けし、グループごとに無線電力受電部１２０を設けて電力供給されるようにすることができる。   The wireless power receiving unit 120 can group the loads 10 to which power is supplied based on priority and the like, and can provide as many groups as the number corresponding to each group. The load 10 mounted on the vehicle ranges from a high priority necessary for safe driving to a low priority such as audio equipment, and the load 10 is grouped based on each priority, A wireless power receiving unit 120 may be provided for each group so that power is supplied.

無線電力送電部１１０は、１次コイル１１１と１次側共鳴コイル１１２とを備えている。また、無線電力受電部１２０は、それぞれ２次コイル１２１と２次側共鳴コイル１２２とを備えている。１次コイル１１１は、車両用電源１０１から交流電圧が印加されると、磁場を生成して１次側共鳴コイル１１２と電磁界結合する。１次側共鳴コイル１１２は、２次側共鳴コイル１２２との間で磁気共鳴して１次コイル１１１で生成された磁場を増強する。さらに、２次コイル１２１は電磁誘導により２次側共鳴コイル１２２から電力を取り出す。２次コイル１２１には負荷１０が接続されており、２次側共鳴コイル１２２から取り出した電力を負荷１０に供給する。   The wireless power transmission unit 110 includes a primary coil 111 and a primary resonance coil 112. Moreover, the wireless power receiving unit 120 includes a secondary coil 121 and a secondary resonance coil 122, respectively. The primary coil 111 generates a magnetic field and electromagnetically couples with the primary resonance coil 112 when an AC voltage is applied from the vehicle power supply 101. The primary resonance coil 112 reinforces the magnetic field generated by the primary coil 111 by magnetic resonance with the secondary resonance coil 122. Further, the secondary coil 121 extracts power from the secondary resonance coil 122 by electromagnetic induction. A load 10 is connected to the secondary coil 121, and the electric power extracted from the secondary resonance coil 122 is supplied to the load 10.

上記のような構成により、本実施形態の車両用電力伝送装置１０２は、車両用電源１０１から受電した電力を無線電力送電部１１０から複数の無線電力受電部１２０に無線で伝送することが可能となっている。そして、無線電力受電部１２０で受電した電力を負荷１０に供給する。   With the configuration as described above, the vehicle power transmission device 102 according to the present embodiment can wirelessly transmit the power received from the vehicle power supply 101 from the wireless power transmission unit 110 to the plurality of wireless power reception units 120. It has become. Then, the power received by the wireless power receiving unit 120 is supplied to the load 10.

無線電力送電部１１０の共振周波数をｆ１とし、無線電力受電部１２０の共振周波数をｆ２とする（無線電力受電部１２０−１〜３のそれぞれの共振周波数を、それぞれｆ２−１〜３とする）とき、無線電力送電部１１０の共振周波数ｆ１と一致する共振周波数ｆ２（ｆ２−１〜３）を有する無線電力受電部１２０の２次側共鳴コイル１２２が、１次側共鳴コイル１１２と磁気共鳴して無線電力を受電することができる。   The resonance frequency of the wireless power transmission unit 110 is set to f1, and the resonance frequency of the wireless power reception unit 120 is set to f2 (resonance frequencies of the wireless power reception units 120-1 to 120-3 are respectively set to f2-1 to 3). The secondary resonance coil 122 of the wireless power receiving unit 120 having a resonance frequency f2 (f2-1 to 3) that matches the resonance frequency f1 of the wireless power transmission unit 110 magnetically resonates with the primary resonance coil 112. Wireless power can be received.

磁気共鳴方式による無線電力伝送では、１次側共鳴コイル１１２と２次側共鳴コイル１２２とが比較的離れていても無線で電力伝送が可能であり、また１次側共鳴コイル１１２の中心軸と２次側共鳴コイル１２２の中心軸とが一致していない場合でも電力伝送が可能である。したがって、１次側共鳴コイル１１２の周辺に２次側共鳴コイル１２２を複数配置することができ、１つの無線電力送電部１１０から複数の無線電力受電部１２０に電力を無線伝送させることが可能となる。   In wireless power transmission by the magnetic resonance method, power transmission is possible wirelessly even when the primary resonance coil 112 and the secondary resonance coil 122 are relatively separated from each other. Even when the center axis of the secondary resonance coil 122 does not coincide with the center axis, power transmission is possible. Accordingly, a plurality of secondary resonance coils 122 can be arranged around the primary resonance coil 112, and power can be wirelessly transmitted from one wireless power transmission unit 110 to a plurality of wireless power reception units 120. Become.

無線電力送電部１１０及び無線電力受電部１２０のそれぞれの共振周波数ｆ１及びｆ２は、それぞれの回路定数によって決定される。本実施形態の車両用電力伝送装置１０２では、無線電力送電部１１０が１次側共鳴コイル１１２とともに送電側コンデンサ１１３を備えて共振回路を構成しており、１次側共鳴コイル１１２のインダクタンスとコンデンサ１１３の静電容量とから共振周波数ｆ１が決定されている。   Resonant frequencies f1 and f2 of the wireless power transmission unit 110 and the wireless power reception unit 120 are determined by respective circuit constants. In the vehicle power transmission device 102 of the present embodiment, the wireless power transmission unit 110 includes a power transmission side capacitor 113 together with the primary side resonance coil 112 to form a resonance circuit, and the inductance and the capacitor of the primary side resonance coil 112. The resonance frequency f1 is determined from the capacitance of 113.

また、無線電力受電部１２０も、２次側共鳴コイル１２２とともに受電側コンデンサ１２３を備えて共振回路を構成している。無線電力受電部１２０では、共振周波数ｆ２をそれぞれで調整可能とするために、２次側共鳴コイル１２２及び受電側コンデンサ１２３をそれぞれ誘導係数の変更が可能な可変コイル及び静電容量の変更が可能な可変コンデンサとしている。さらに、２次側共鳴コイル１２２の誘導係数及び受電側コンデンサ１２３の静電容量を調整する受電側共振周波数調整部１２４が無線電力受電部１２０ごとに設けられている。   The wireless power receiving unit 120 also includes a power receiving side capacitor 123 together with the secondary side resonance coil 122 to form a resonance circuit. In the wireless power receiving unit 120, in order to be able to adjust the resonance frequency f2 respectively, it is possible to change the variable coil and the capacitance that can change the induction coefficient of the secondary side resonance coil 122 and the power reception side capacitor 123, respectively. Variable capacitor. Further, a power receiving side resonance frequency adjusting unit 124 that adjusts the induction coefficient of the secondary side resonance coil 122 and the capacitance of the power receiving side capacitor 123 is provided for each wireless power receiving unit 120.

２次側共鳴コイル１２２と受電側コンデンサ１２３とからなる共振回路では、２次側共鳴コイル１２２の誘導係数（インダクタンス）Ｌと受電側コンデンサ１２３の静電容量Ｃとから共振周波数ｆ２が決定される。受電側共振周波数調整部１２４は、２次側共鳴コイル１２２の誘導係数Ｌ及び受電側コンデンサ１２３の静電容量Ｃを調整する手段であり、２次側共鳴コイル１２２の誘導係数Ｌ及び／または静電容量Ｃを調整することにより、無線電力受電部１２０の共振周波数ｆ２を調整することが可能となっている。   In the resonance circuit including the secondary side resonance coil 122 and the power reception side capacitor 123, the resonance frequency f2 is determined from the induction coefficient (inductance) L of the secondary side resonance coil 122 and the capacitance C of the power reception side capacitor 123. . The power receiving side resonance frequency adjusting unit 124 is a unit that adjusts the induction coefficient L of the secondary side resonance coil 122 and the capacitance C of the power reception side capacitor 123. By adjusting the capacitance C, the resonance frequency f2 of the wireless power receiving unit 120 can be adjusted.

本実施形態の車両用電力伝送装置１０２では、負荷１０が優先度等に基づいてグループ分けされており、各グループの負荷１０が１つの無線電力受電部１２０に接続されている。したがって、無線電力送電部１１０の共振周波数ｆ１に一致するように受電側共振周波数調整部１２４を用いて２次側共鳴コイル１２２の誘導係数Ｌ及び／または受電側コンデンサ１２３の静電容量Ｃが調整された無線電力受電部１２０が、無線電力送電部１１０から無線伝送で電力を受電する。そして、当該無線電力受電部１２０に接続されているグループの負荷１０に対して、電力供給が行われる。   In the vehicular power transmission apparatus 102 of the present embodiment, the loads 10 are grouped based on priority and the like, and the loads 10 of each group are connected to one wireless power receiving unit 120. Therefore, the inductive coefficient L of the secondary resonance coil 122 and / or the electrostatic capacitance C of the power reception side capacitor 123 is adjusted using the power reception side resonance frequency adjustment unit 124 so as to coincide with the resonance frequency f1 of the wireless power transmission unit 110. The received wireless power receiving unit 120 receives power from the wireless power transmitting unit 110 by wireless transmission. Then, power is supplied to the load 10 of the group connected to the wireless power receiving unit 120.

一方、電力供給が停止される負荷１０が接続された無線電力受電部１２０では、受電側共振周波数調整部１２４を用いて２次側共鳴コイル１２２の誘導係数Ｌ及び／または受電側コンデンサ１２３の静電容量Ｃを調整することで、無線電力受電部１２０の共振周波数ｆ２が無線電力送電部１１０の共振周波数ｆ１と異なるようにする。これにより、給電を停止させる負荷１０が接続された無線電力受電部１２０には、無線電力送電部１１０から無線電力が伝送されない。   On the other hand, in the wireless power receiving unit 120 to which the load 10 to which power supply is stopped is connected, the induction coefficient L of the secondary resonance coil 122 and / or the static of the receiving capacitor 123 is received by using the power reception side resonance frequency adjustment unit 124. By adjusting the capacitance C, the resonance frequency f2 of the wireless power receiving unit 120 is made different from the resonance frequency f1 of the wireless power transmission unit 110. As a result, wireless power is not transmitted from the wireless power transmission unit 110 to the wireless power reception unit 120 to which the load 10 for stopping power feeding is connected.

３つの無線電力受電部１２０のそれぞれの共振周波数を、具体的に調整した一例を図２に示す。図２では、無線電力送電部１１０の１次側共鳴コイル１１２のインダクタンスをＬ０、送電側コンデンサ１１３の静電容量をＣ０としている。一方、３つの無線電力受電部１２０では、説明簡単のため、それぞれの２次側共鳴コイル１２２のインダクタンスを、すべて１次側共鳴コイル１１２のインダクタンスと同じＬ０とする。また、それぞれの受電側コンデンサ１２３の静電容量を、それぞれ送電側コンデンサ１１３の静電容量と同じＣ０、２倍の２Ｃ０、３倍の３Ｃ０、とする。   An example in which the resonance frequencies of the three wireless power receiving units 120 are specifically adjusted is shown in FIG. In FIG. 2, the inductance of the primary resonance coil 112 of the wireless power transmission unit 110 is L0, and the capacitance of the power transmission capacitor 113 is C0. On the other hand, in the three wireless power receiving units 120, the inductances of the secondary resonance coils 122 are all set to L0, which is the same as the inductance of the primary resonance coil 112, for the sake of simplicity. In addition, the capacitance of each power receiving side capacitor 123 is set to C0, 2 times 2C0, and 3 times 3C0, which are the same as the capacitance of the power transmission side capacitor 113, respectively.

受電側共振周波数調整部１２４を用いて３つの無線電力受電部１２０のそれぞれの２次側共鳴コイル１２２の誘導係数Ｌ及び受電側コンデンサ１２３の静電容量を上記のように調整したとき、無線電力受電部１２０−１の共振周波数のみが無線電力送電部１１０の共振周波数と等しくなる。その結果、無線電力受電部１２０−１のみが無線電力送電部１１０から無線電力を受電し、無線電力受電部１２０−２、３は全く受電しない。本実施形態の車両用電力伝送装置１０２では、上記のようにして無線電力を受電する無線電力受電部１２０を容易に選択することができる。   When the receiving-side resonance frequency adjusting unit 124 is used to adjust the induction coefficient L of the secondary-side resonance coil 122 and the capacitance of the receiving-side capacitor 123 of the three wireless power receiving units 120 as described above, the wireless power Only the resonance frequency of power reception unit 120-1 is equal to the resonance frequency of wireless power transmission unit 110. As a result, only the wireless power receiving unit 120-1 receives wireless power from the wireless power transmitting unit 110, and the wireless power receiving units 120-2 and 3 do not receive power at all. In the vehicle power transmission device 102 of the present embodiment, the wireless power receiving unit 120 that receives wireless power can be easily selected as described above.

共振周波数ｆ２が無線電力送電部１１０の共振周波数ｆ１に一致する無線電力受電部１２０は、複数ある無線電力受電部１２０のいずれか１つに限定されるものではなく、２以上、あるいはすべての無線電力受電部１２０の共振周波数ｆ２が無線電力送電部１１０の共振周波数ｆ１に一致していてもよい。無線電力送電部１１０の共振周波数ｆ１に一致する共振周波数ｆ２を有するすべての無線電力受電部１２０が、無線電力送電部１１０から無線で電力を受電する。   The wireless power receiving unit 120 whose resonance frequency f2 matches the resonance frequency f1 of the wireless power transmitting unit 110 is not limited to any one of the plurality of wireless power receiving units 120, and two or more or all wireless power receiving units 120 The resonance frequency f2 of the power receiving unit 120 may coincide with the resonance frequency f1 of the wireless power transmission unit 110. All the wireless power reception units 120 having the resonance frequency f2 that matches the resonance frequency f1 of the wireless power transmission unit 110 receive power from the wireless power transmission unit 110 wirelessly.

上記説明のように、本実施形態の車両用電源システム１００及び車両用電力伝送装置１０２によれば、共振周波数が無線電力送電部１１０の共振周波数に一致するように調整された無線電力受電部１２０のみが無線電力送電部１１０から無線電力を受電することができることから、無線電力受電部１２０側で接続先の負荷１０に電力供給を行うか否かを選択することが可能となる。   As described above, according to the vehicle power supply system 100 and the vehicle power transmission device 102 of the present embodiment, the wireless power reception unit 120 adjusted so that the resonance frequency matches the resonance frequency of the wireless power transmission unit 110. Since only the wireless power can be received from the wireless power transmission unit 110, it is possible to select whether or not to supply power to the load 10 at the connection destination on the wireless power reception unit 120 side.

本実施形態の車両用電源システム１００及び車両用電力伝送装置１０２によれば、車両用電源１０１に１つの無線電力送電部１１０を接続し、１以上の負荷１０に１以上の無線電力受電部１２０を接続することで、磁気共鳴により無線電力送電部１１０から各無線電力受電部１２０に電力を無線伝送して負荷に電力供給することが可能となる。これにより、Ｗ／Ｈの配索量を低減してその組み付け作業量を削減するとともに、Ｗ／Ｈの削減により車両の軽量化を図ることが可能となる。   According to the vehicle power supply system 100 and the vehicle power transmission device 102 of the present embodiment, one wireless power transmission unit 110 is connected to the vehicle power supply 101, and one or more wireless power reception units 120 are connected to one or more loads 10. By connecting the power, the power can be wirelessly transmitted from the wireless power transmission unit 110 to each wireless power reception unit 120 by magnetic resonance and supplied to the load. As a result, the amount of W / H wiring can be reduced to reduce the amount of assembly work, and the weight of the vehicle can be reduced by reducing W / H.

また、無線電力受電部１２０に受電側共振周波数調整部１２４を設けて共振周波数を調整可能にしており、各無線電力受電部１２０の共振周波数を無線電力送電部１１０の共振周波数に一致させるまたは異ならせることにより、無線電力送電部１１０から無線電力を受電するまたは受電しないようにすることが可能となっている。これにより、負荷１０を優先度等に基づいてグループ分けし、グループごとに１つの無線電力受電部１２０を設けてこれに接続することで、負荷１０の優先度等に基づいて電力供給を制御することが可能となる。その結果、不要な給電を停止して電源の利用を効率化させることができる。   Further, the wireless power receiving unit 120 is provided with a power receiving side resonance frequency adjusting unit 124 so that the resonance frequency can be adjusted, and the resonance frequency of each wireless power receiving unit 120 is matched with the resonance frequency of the wireless power transmitting unit 110 or different. By doing so, it is possible to receive wireless power from the wireless power transmission unit 110 or not to receive power. Thereby, the load 10 is grouped based on the priority and the like, and one wireless power receiving unit 120 is provided for each group and connected thereto, thereby controlling the power supply based on the priority of the load 10 and the like. It becomes possible. As a result, unnecessary power feeding can be stopped and the use of the power source can be made more efficient.

さらに、給電対象の負荷を追加する場合には、車両用電源１０１及び無線電力送電部１１０に変更を加えることなく、無線電力受電部１２０のみを追加してこれに追加の負荷を接続することで、追加の負荷に電力を供給することが可能となる。   Further, when adding a load to be fed, without adding changes to the vehicle power supply 101 and the wireless power transmission unit 110, only the wireless power reception unit 120 is added and an additional load is connected thereto. It becomes possible to supply power to the additional load.

（第２実施形態）
本発明の第２の実施形態に係る車両用電力伝送装置及び車両用電源システムを、図３を用いて説明する。図３は、本実施形態の車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。本実施形態の車両用電源システム２００及び車両用電源システム２０２では、各無線電力受電部１２０の受電側共振周波数調整部１２４を統括して制御する統括制御部２２６が追加されている。 (Second Embodiment)
A vehicle power transmission device and a vehicle power supply system according to a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the vehicle power transmission device and the vehicle power supply system of the present embodiment. In the vehicle power supply system 200 and the vehicle power supply system 202 according to the present embodiment, an overall control unit 226 that controls the power reception-side resonance frequency adjustment unit 124 of each wireless power reception unit 120 is added.

図１に示す第１実施形態の車両用電源システム１００及び車両用電力伝送装置１０２では、複数の無線電力受電部１２０のそれぞれの共振周波数を、それぞれの無線電力受電部１２０で調整する構成としている。すなわち、それぞれの無線電力受電部１２０において、受電側共振周波数調整部１２４を用いてそれぞれの２次側共鳴コイル１２２の誘導係数Ｌ及び／または受電側コンデンサ１２３の静電容量を変更することで、それぞれの共振周波数を調整している。これに対し、本実施形態で追加された統括制御部２２６は、各無線電力受電部１２０の受電側共振周波数調整部１２４を統括制御しており、これにより、統括制御部２２６は車両の状況に応じて負荷への電源供給を適切に制御することが可能となる。   In the vehicle power supply system 100 and the vehicle power transmission apparatus 102 according to the first embodiment shown in FIG. 1, the respective resonance frequencies of the plurality of wireless power receiving units 120 are adjusted by the respective wireless power receiving units 120. . That is, by changing the induction coefficient L of each secondary resonance coil 122 and / or the capacitance of the power reception side capacitor 123 in each wireless power reception unit 120 using the power reception side resonance frequency adjustment unit 124, Each resonance frequency is adjusted. On the other hand, the overall control unit 226 added in the present embodiment performs overall control of the power reception side resonance frequency adjustment unit 124 of each wireless power reception unit 120, whereby the overall control unit 226 can control the situation of the vehicle. Accordingly, it is possible to appropriately control the power supply to the load.

一例として、給電停止や電圧変動／電圧低下等の電源の品質低下となる事象が発生した場合には、電源品質を維持する必要のある負荷に対して優先的に電力供給できるように、統括制御部２２６により各無線電力受電部１２０の受電側共振周波数調整部１２４を制御させることができる。また、走行中に不具合が発生して車両の安全停止が必要となった場合には、統括制御部２２６により安全停止に必要な負荷への電源供給を優先させ、それ以外の負荷への電源供給を停止させるように各無線電力受電部１２０の受電側共振周波数調整部１２４を制御させることが可能となる。   As an example, in the event of an event that causes power quality degradation such as power supply stoppage or voltage fluctuation / voltage drop, overall control is performed so that power can be preferentially supplied to loads that need to maintain power quality. The power receiving side resonance frequency adjusting unit 124 of each wireless power receiving unit 120 can be controlled by the unit 226. In addition, when a malfunction occurs during traveling and the vehicle needs to be safely stopped, the overall control unit 226 gives priority to power supply to the load necessary for safe stop and supplies power to other loads. It is possible to control the power receiving side resonance frequency adjusting unit 124 of each wireless power receiving unit 120 so as to stop the operation.

車両が冗長的な電源供給手段としてサブ電源を備える場合には、サブ電源の制御を本実施形態の車両用電力伝送装置２０２を用いて行うのが好ましい。サブ電源を本実施形態の車両用電力伝送装置２０２を用いて制御するように構成することで、車両の状況に応じて統括制御部２２６で重要な負荷を判定させ、これにサブ電源から優先的に電力を供給させるようにすることができる。また、車両停止中に盗難等の緊急事態が発生した場合には、サブ電源から盗難防止に有用な負荷に電源供給させるようにすることも可能である。   When the vehicle includes a sub power source as a redundant power supply means, it is preferable to control the sub power source using the vehicle power transmission apparatus 202 of the present embodiment. By configuring the sub power source to be controlled using the vehicular power transmission apparatus 202 of the present embodiment, the overall control unit 226 determines an important load according to the situation of the vehicle, and this is prioritized from the sub power source. Can be made to supply power. Further, when an emergency such as theft occurs while the vehicle is stopped, it is also possible to supply power from a sub power source to a load useful for preventing theft.

（第３実施形態）
本発明の第３の実施形態に係る車両用電力伝送装置及び車両用電源システムを、図４を用いて説明する。図４は、本実施形態の車両用電力伝送装置及び車両用電源システムの構成を示すブロック図である。本実施形態の車両用電源システム３００及び車両用電源システム３０２では、無線電力送電部３１０の構成が第１実施形態及び第２実施形態と異なっている。 (Third embodiment)
A vehicle power transmission device and a vehicle power supply system according to a third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a block diagram showing the configuration of the vehicle power transmission device and the vehicle power supply system of the present embodiment. In the vehicle power supply system 300 and the vehicle power supply system 302 of this embodiment, the configuration of the wireless power transmission unit 310 is different from that of the first embodiment and the second embodiment.

本実施形態の車両用電力伝送装置３０２では、無線電力送電部３１０の共振周波数ｆ１を調整可能とするために、１次側共鳴コイル３１２及び送電側コンデンサ３１３をそれぞれ誘導係数の変更が可能な可変コイル及び静電容量の変更が可能な可変コンデンサとしている。また、１次側共鳴コイル３１２の誘導係数及び送電側コンデンサ３１３の静電容量を調整する送電側共振周波数調整部３１４が無線電力送電部３１０に設けられている。１次側共鳴コイル３１２及び送電側コンデンサ３１３は、共振回路を構成している。   In the vehicle power transmission device 302 of the present embodiment, in order to be able to adjust the resonance frequency f1 of the wireless power transmission unit 310, the primary side resonance coil 312 and the power transmission side capacitor 313 can be changed in induction coefficients. The variable capacitor is capable of changing the coil and capacitance. In addition, a wireless power transmission unit 310 is provided with a power transmission resonance frequency adjustment unit 314 that adjusts the induction coefficient of the primary resonance coil 312 and the capacitance of the power transmission capacitor 313. The primary side resonance coil 312 and the power transmission side capacitor 313 constitute a resonance circuit.

本実施形態の車両用電力伝送装置３０２では、受電側の無線電力受電部３２０だけでなく、送電側の無線電力送電部３１０も共振周波数の調整が可能に構成されている。これにより、受電側で負荷１０の状況等に応じて無線電力を受電するか否かを選択することが可能となるだけでなく、送電側でも、例えば車両用電源１０１の発電能力等に応じて、無線電力の伝送先である無線電力受電部３２０を選択することが可能となる。したがって、車両用電源１０１の制御をさらに柔軟に行うことが可能となる。   In the vehicle power transmission device 302 of the present embodiment, not only the power receiving-side wireless power receiving unit 320 but also the power transmitting-side wireless power transmitting unit 310 is configured to be able to adjust the resonance frequency. As a result, it is possible not only to select whether or not to receive wireless power according to the status of the load 10 on the power receiving side, but also on the power transmission side, for example, depending on the power generation capability of the vehicle power source 101 or the like. The wireless power receiving unit 320 that is the transmission destination of wireless power can be selected. Therefore, the vehicle power supply 101 can be controlled more flexibly.

なお、本実施の形態における記述は、本発明に係る車両用電力伝送装置及び車両用電源システムの一例を示すものであり、これに限定されるものではない。本実施の形態における車両用電力伝送装置及び車両用電源システムの細部構成及び詳細な動作等に関しては、本発明の趣旨を逸脱しない範囲で適宜変更可能である。   In addition, the description in this Embodiment shows an example of the vehicle power transmission device and vehicle power supply system which concern on this invention, and is not limited to this. The detailed configuration and detailed operation of the vehicle power transmission device and the vehicle power supply system in the present embodiment can be appropriately changed without departing from the spirit of the present invention.

１０ 負荷
１００、２００、３００ 車両用電源システム
１０１ 車両用電源
１０２、２０２、３０２ 車両用電力伝送装置
１１０、３１０ 無線電力送電部
１１１ １次コイル
１１２、３１２ １次側共鳴コイル
１１３、３１３ 送電側コンデンサ
１２０ 無線電力受電部
１２１ ２次コイル
１２２ ２次側共鳴コイル
１２３ 受電側コンデンサ
１２４ 受電側共振周波数調整部
２２６ 統括制御部
３１４ 送電側共振周波数調整部
DESCRIPTION OF SYMBOLS 10 Load 100, 200, 300 Vehicle power supply system 101 Vehicle power supply 102, 202, 302 Vehicle power transmission device 110, 310 Wireless power transmission unit 111 Primary coil 112, 312 Primary side resonance coil 113, 313 Power transmission side capacitor DESCRIPTION OF SYMBOLS 120 Wireless power receiving part 121 Secondary coil 122 Secondary side resonance coil 123 Power receiving side capacitor 124 Power receiving side resonance frequency adjustment part 226 General control part 314 Power transmission side resonance frequency adjustment part

Claims (10)

車両用電源に接続されて所定の共振周波数で無線電力を発生させる無線電力送電部と、
前記無線電力送電部から前記無線電力を受電すると接続先の負荷に給電する無線電力受電部と、を備え、
前記無線電力受電部は、共振周波数を調整するための受電側共振周波数調整部を有しており、
前記受電側共振周波数調整部により前記無線電力受電部の共振周波数が前記無線電力送信部の共振周波数に略等しくなるように調整されると、前記無線電力送信部から前記無線電力受電部に磁気共鳴により前記無線電力が伝送される
ことを特徴とする車両用電力伝送装置。 A wireless power transmission unit that is connected to a vehicle power source and generates wireless power at a predetermined resonance frequency;
A wireless power receiving unit that feeds power to a connected load when receiving the wireless power from the wireless power transmitting unit,
The wireless power receiving unit has a power receiving side resonance frequency adjusting unit for adjusting a resonance frequency,
When the resonance frequency of the wireless power receiving unit is adjusted by the power receiving side resonance frequency adjusting unit to be substantially equal to the resonance frequency of the wireless power transmitting unit, magnetic resonance is performed from the wireless power transmitting unit to the wireless power receiving unit. The wireless power is transmitted by the vehicle power transmission device. 前記無線電力送電部は、前記車両用電源から交流電圧が印加される１次コイルと、前記１次コイルに電磁界結合する１次側共鳴コイルと、を備え、
前記無線電力受電部は、前記負荷に接続された２次コイルと、前記２次コイルに電磁界結合する２次側共鳴コイルと、を備え、
前記受電側共振周波数調整部により前記無線電力受電部の共振周波数が前記無線電力送電部の共振周波数と略等しくなるように調整されると、前記１次側共鳴コイルと前記２次側共鳴コイルとの間で磁気共鳴する
ことを特徴とする請求項１に記載の車両用電力伝送装置。 The wireless power transmission unit includes a primary coil to which an AC voltage is applied from the vehicle power supply, and a primary resonance coil that is electromagnetically coupled to the primary coil.
The wireless power receiving unit includes a secondary coil connected to the load, and a secondary resonance coil electromagnetically coupled to the secondary coil,
When the resonance frequency of the wireless power reception unit is adjusted by the power reception side resonance frequency adjustment unit to be substantially equal to the resonance frequency of the wireless power transmission unit, the primary resonance coil and the secondary resonance coil The vehicle power transmission device according to claim 1, wherein magnetic resonance is performed between the two. 前記無線電力受電部は、前記２次側共鳴コイルに接続された受電側可変コンデンサを有しており、
前記受電側共振周波数調整部は、前記受電側可変コンデンサの静電容量を変更することで前記無線電力受電部の共振周波数を調整する
ことを特徴とする請求項２に記載の車両用電力伝送装置。 The wireless power receiving unit has a power receiving variable capacitor connected to the secondary resonance coil,
3. The vehicle power transmission device according to claim 2, wherein the power reception side resonance frequency adjustment unit adjusts a resonance frequency of the wireless power reception unit by changing a capacitance of the power reception side variable capacitor. . 前記２次側共鳴コイルは、誘導係数の変更が可能な可変コイル（インダクタ）であり、
前記受電側共振周波数調整部は、前記２次側共鳴コイルの誘導係数を変更することで前記無線電力受電部の共振周波数を調整する
ことを特徴とする請求項２または３に記載の車両用電力伝送装置。 The secondary resonance coil is a variable coil (inductor) capable of changing an induction coefficient,
4. The vehicle power according to claim 2, wherein the power reception side resonance frequency adjustment unit adjusts a resonance frequency of the wireless power reception unit by changing an induction coefficient of the secondary resonance coil. 5. Transmission equipment. 前記無線電力受電部を２以上備え、
前記受電側共振周波数調整部により共振周波数が前記無線電力送電部の共振周波数に略等しくなるように調整された前記無線電力受電部が、前記無線電力送電部から前記無線電力を受電する
ことを特徴とする請求項１乃至４のいずれか１項に記載の車両用電力伝送装置。 2 or more of the wireless power receiving unit,
The wireless power receiving unit adjusted by the power receiving side resonance frequency adjusting unit so that a resonance frequency is substantially equal to a resonance frequency of the wireless power transmitting unit receives the wireless power from the wireless power transmitting unit. The vehicle power transmission device according to any one of claims 1 to 4. 前記無線電力送電部は、共振周波数を調整するための送電側共振周波数調整部を有しており、
前記送電側共振周波数調整部により前記無線電力送電部の共振周波数が前記無線電力受電部の共振周波数と略等しくなるように調整されると、前記１次側共鳴コイルと前記２次側共鳴コイルとの間で磁気共鳴する
ことを特徴とする請求項２乃至５のいずれか１項に記載の車両用電力伝送装置。 The wireless power transmission unit has a power transmission side resonance frequency adjustment unit for adjusting the resonance frequency,
When the resonance frequency of the wireless power transmission unit is adjusted by the power transmission resonance frequency adjustment unit to be substantially equal to the resonance frequency of the wireless power reception unit, the primary resonance coil and the secondary resonance coil The vehicle power transmission device according to claim 2, wherein magnetic resonance is performed between the two. 前記無線電力送電部は、前記１次側共鳴コイルに接続された送電側可変コンデンサを有しており、
前記送電側共振周波数調整部は、前記送電側可変コンデンサの静電容量を変更することで前記無線電力送電部の共振周波数を調整する
ことを特徴とする請求項６に記載の車両用電力伝送装置。 The wireless power transmission unit has a power transmission side variable capacitor connected to the primary resonance coil,
The vehicle power transmission device according to claim 6, wherein the power transmission side resonance frequency adjusting unit adjusts a resonance frequency of the wireless power transmission unit by changing a capacitance of the power transmission side variable capacitor. . 前記１次側共鳴コイルは、誘導係数の変更が可能な可変コイル（インダクタ）であり、
前記無線電力送電部は、前記１次側共鳴コイルの誘導係数を変更することで前記無線電力送電部の共振周波数を調整する
ことを特徴とする請求項６または７に記載の車両用電力伝送装置。 The primary resonance coil is a variable coil (inductor) capable of changing an induction coefficient,
The vehicle power transmission device according to claim 6 or 7, wherein the wireless power transmission unit adjusts a resonance frequency of the wireless power transmission unit by changing an induction coefficient of the primary side resonance coil. . １以上の前記無線電力受電部のそれぞれの前記受電側共振周波数調整部に対して共振周波数の変更を制御する統括制御部をさらに備えている
ことを特徴とする請求項１乃至８のいずれか１項に記載の車両用電力伝送装置。 9. The system according to claim 1, further comprising an overall control unit that controls a change in a resonance frequency with respect to the power-receiving-side resonance frequency adjusting unit of each of the one or more wireless power receiving units. The vehicle power transmission device according to the item. 交流電力を供給する車両用電源と、
請求項１乃至９のいずれか１項に記載の車両用電力伝送装置と、を備える
ことを特徴とする車両用電源システム。
A vehicle power supply for supplying AC power;
A vehicle power supply system comprising: the vehicle power transmission device according to any one of claims 1 to 9.
JP2011221777A 2011-10-06 2011-10-06 Vehicle power transmission device and vehicle power supply system Pending JP2013085322A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016063699A (en) * 2014-09-19 2016-04-25 株式会社日本自動車部品総合研究所 Wireless power supply device
US9787114B2 (en) 2014-07-11 2017-10-10 Samsung Electro-Mechanics Co., Ltd. Wireless power transmitter and wireless power transmission system
WO2022168272A1 (en) * 2021-02-05 2022-08-11 三菱電機株式会社 Power receiving device and wireless power feeding system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009120019A (en) * 2007-11-14 2009-06-04 Autonetworks Technologies Ltd On-vehicle electric power supply system
JP2010063245A (en) * 2008-09-02 2010-03-18 Sony Corp Non-contact feeder system
JP2010141977A (en) * 2008-12-09 2010-06-24 Toyota Industries Corp Power transmission method in non-contact power transmission apparatus, and the non-contact power transmission apparatus
JP2010158151A (en) * 2008-12-01 2010-07-15 Toyota Industries Corp Contactless power transmission apparatus
WO2010116441A1 (en) * 2009-03-30 2010-10-14 富士通株式会社 Wireless power supply system, wireless power transmission device, and wireless power receiving device
JP2011087433A (en) * 2009-10-16 2011-04-28 Tdk Corp Wireless power-supply device, wireless power-receiving device, and wireless power transmission system
US20110133569A1 (en) * 2009-12-04 2011-06-09 Electronics And Telecommunications Research Institute Wireless power transmission device and wireless power reception device
JP2011167031A (en) * 2010-02-15 2011-08-25 Toyota Central R&D Labs Inc Power supplying device for moving body
JP2013062903A (en) * 2011-09-12 2013-04-04 Furukawa Electric Co Ltd:The Vehicular power transmission apparatus and vehicular power supply system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009120019A (en) * 2007-11-14 2009-06-04 Autonetworks Technologies Ltd On-vehicle electric power supply system
JP2010063245A (en) * 2008-09-02 2010-03-18 Sony Corp Non-contact feeder system
JP2010158151A (en) * 2008-12-01 2010-07-15 Toyota Industries Corp Contactless power transmission apparatus
JP2010141977A (en) * 2008-12-09 2010-06-24 Toyota Industries Corp Power transmission method in non-contact power transmission apparatus, and the non-contact power transmission apparatus
WO2010116441A1 (en) * 2009-03-30 2010-10-14 富士通株式会社 Wireless power supply system, wireless power transmission device, and wireless power receiving device
JP2011087433A (en) * 2009-10-16 2011-04-28 Tdk Corp Wireless power-supply device, wireless power-receiving device, and wireless power transmission system
US20110133569A1 (en) * 2009-12-04 2011-06-09 Electronics And Telecommunications Research Institute Wireless power transmission device and wireless power reception device
JP2011167031A (en) * 2010-02-15 2011-08-25 Toyota Central R&D Labs Inc Power supplying device for moving body
JP2013062903A (en) * 2011-09-12 2013-04-04 Furukawa Electric Co Ltd:The Vehicular power transmission apparatus and vehicular power supply system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9787114B2 (en) 2014-07-11 2017-10-10 Samsung Electro-Mechanics Co., Ltd. Wireless power transmitter and wireless power transmission system
JP2016063699A (en) * 2014-09-19 2016-04-25 株式会社日本自動車部品総合研究所 Wireless power supply device
WO2022168272A1 (en) * 2021-02-05 2022-08-11 三菱電機株式会社 Power receiving device and wireless power feeding system
JPWO2022168272A1 (en) * 2021-02-05 2022-08-11
JP7309074B2 (en) 2021-02-05 2023-07-14 三菱電機株式会社 Powered device and wireless power supply system

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