JP6135510B2 - 送電装置 - Google Patents
送電装置 Download PDFInfo
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- JP6135510B2 JP6135510B2 JP2013545709A JP2013545709A JP6135510B2 JP 6135510 B2 JP6135510 B2 JP 6135510B2 JP 2013545709 A JP2013545709 A JP 2013545709A JP 2013545709 A JP2013545709 A JP 2013545709A JP 6135510 B2 JP6135510 B2 JP 6135510B2
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- Prior art keywords
- power
- power transmission
- vehicle
- unit
- transmission unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems 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]
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Description
好ましくは、送電部は、車両の受電部と送電部の間に形成され、かつ特定の周波数で振動する磁界と、受電部と送電部の間に形成され、かつ特定の周波数で振動する電界との少なくとも一方を通じて、受電部に電力を送電する。
好ましくは、送電装置の送電部は、受電部と送電部の間に形成され、かつ特定の周波数で振動する磁界と、受電部と送電部の間に形成され、かつ特定の周波数で振動する電界との少なくとも一方を通じて、受電部に電力を送電する。
好ましくは、送電部は、受電部と送電部の間に形成され、かつ特定の周波数で振動する磁界と、受電部と送電部の間に形成され、かつ特定の周波数で振動する電界との少なくとも一方を通じて、受電部に電力を送電する。
図1を参照して、電力送受電システム10は、車両100と、送電装置200とを含む。車両100は、受電部110と、通信部160とを含む。送電装置200は、認証サーバ270に登録された車両データを参照して車両の認証を行なう。
図2を参照して、この共鳴法では、2つの音叉が共鳴するのと同様に、同じ固有振動数を有する2つのLC共振コイルが電磁場(近接場)において共鳴することによって、一方のコイルから他方のコイルへ電磁場を介して電力が伝送される。
図3を参照して、電磁界は3つの成分を含む。曲線k1は、波源からの距離に反比例した成分であり、「輻射電磁界」と称される。曲線k2は、波源からの距離の2乗に反比例した成分であり、「誘導電磁界」と称される。また、曲線k3は、波源からの距離の3乗に反比例した成分であり、「静電磁界」と称される。
図5は、送電装置と受電装置との間の固有周波数のズレと効率の関係を示す図である。
f2=1/{2π(Lr×C2)1/2}・・・(2)
ここで、インダクタンスLrおよびキャパシタンスC1,C2を固定して、インダクタンスLtのみを変化させた場合において、送電部93および受電部96の固有周波数のズレと、電力伝送効率との関係を図3に示す。なお、このシミュレーションにおいては、共鳴コイル94および共鳴コイル99の相対的な位置関係は固定した状態であって、さらに、送電部93に供給される電流の周波数は一定である。
図5からも明らかなように、固有周波数のズレ(%)が±0%の場合には、電力伝送効率は、100%近くとなる。固有周波数のズレ(%)が±5%の場合には、電力伝送効率は、40%となる。固有周波数のズレ(%)が±10%の場合には、電力伝送効率は、10%となる。固有周波数のズレ(%)が±15%の場合には、電力伝送効率は、5%となる。すなわち、固有周波数のズレ(%)の絶対値(固有周波数の差)が、受電部96の固有周波数の10%以下の範囲となるように各送電部および受電部の固有周波数を設定することで電力伝送効率を実用的なレベルに高めることができることがわかる。さらに、固有周波数のズレ(%)の絶対値が受電部96の固有周波数の5%以下となるように、各送電部および受電部の固有周波数を設定すると、電力伝送効率をさらに高めることができるのでより好ましい。なお、シミュレーションソフトしては、電磁界解析ソフトウェア(JMAG(登録商標):株式会社JSOL製)を採用している。
続いて、ユーザに伝達された情報をもとに、ユーザが充電を行なうか否かを決定する。たとえば、受電効率が予定よりも低い場合には、その充電スタンドと車両との相性が悪いとユーザが判断し、充電を行なわないことも考えられる。そのような場合には、ステップS11およびステップS111における認証完了とはならないため、ステップS7、ステップS107において充電処理は停止する。このようにユーザの意思に沿わない送受電を避けることができる。
Claims (9)
- 車両に設けられた受電部に対して外部から送電を行なう送電装置であって、
非接触で前記車両に送電を行なうための送電部と、
前記車両との通信を行なうための通信部と、
前記送電部および前記通信部の制御を行なう制御装置とを備え、
前記制御装置は、車両の所有者または使用者または車両を特定するための情報を前記通信部を用いて受信し、
前記制御装置は、前記受電部と前記送電部との位置合わせの結果が前記制御装置によってユーザに報知された後に与えられる前記ユーザからの指示に基づいて、前記送電部に送電を行なわせるか否かを決定し、
前記制御装置は、前記受電部と前記送電部との位置合わせが確定した後であって、前記車両に搭載された前記受電部への送電が開始される前に、前記車両が適切な位置に駐車しているか否かを判断し、前記車両が適切な位置に駐車している場合であって、前記情報に基づいて認証がなされた場合に、前記車両からの充電要求を受信すると、前記受電部への送電を開始する、送電装置。 - 車両の所有者または使用者または車両を特定するための前記情報は、課金されることになるユーザまたは車両の所有者を特定するために用いられる、請求項1に記載の送電装置。
- 前記制御装置は、前記車両を特定するために前記通信部を用いて認証を実行し、前記認証の完了前に前記車両の受電状況を把握するために前記送電部に所定電力を送電させ、前記制御装置は、前記認証の完了後に前記送電部に前記所定電力よりも大きい電力を送電させる、請求項1に記載の送電装置。
- 前記制御装置は、前記所定電力を前記送電部に送電させている間に所定時間が経過しても前記指示が前記ユーザから与えられない場合には、前記送電部からの前記所定電力の送電を停止する、請求項3に記載の送電装置。
- 前記制御装置は、前記認証が完了した後に前記車両に送電した電力を課金対象として扱う、請求項3に記載の送電装置。
- 前記制御装置は、前記車両の送電のための駐車位置が確定し、前記車両に搭載された蓄電装置への充電が開始される前に、前記所定電力を前記送電部に送電させ前記受電状況を確認する、請求項3に記載の送電装置。
- 前記送電部の固有周波数と前記車両の受電部の固有周波数との差は±10%以内である
、請求項1に記載の送電装置。 - 前記車両の受電部と前記送電部との結合係数は、0.1以下である、請求項1に記載の送電装置。
- 前記送電部は、前記車両の受電部と前記送電部の間に形成され、かつ特定の周波数で振動する磁界と、前記受電部と前記送電部の間に形成され、かつ特定の周波数で振動する電界との少なくとも一方を通じて、前記受電部に電力を送電する、請求項1に記載の送電装置。
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US (2) | US9802497B2 (ja) |
EP (1) | EP2784907A4 (ja) |
JP (1) | JP6135510B2 (ja) |
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2011
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- 2011-11-24 EP EP11876174.1A patent/EP2784907A4/en not_active Withdrawn
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EP2784907A4 (en) | 2015-09-16 |
JPWO2013076834A1 (ja) | 2015-04-27 |
US20140333128A1 (en) | 2014-11-13 |
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US20180029482A1 (en) | 2018-02-01 |
CN103947077A (zh) | 2014-07-23 |
WO2013076834A1 (ja) | 2013-05-30 |
US9802497B2 (en) | 2017-10-31 |
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