JP5825356B2 - 車両および電力伝送システム - Google Patents
車両および電力伝送システム Download PDFInfo
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- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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Description
図1を参照して、本実施の形態に係る電力伝送システムを搭載した車両について説明する。図1は、実施の形態における送電装置、受電装置、および電力伝送システムを搭載した車両を模式的に説明する図である。
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3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ことで電力伝送効率をより高めることができることがわかる。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。
図1において、電磁誘導コイル23には、高周波電力ドライバ22から交流電力が供給される。電磁誘導コイル23に所定の交流電流が流れると、電磁誘導によって共鳴コイル24にも交流電流が流れる。この際、共鳴コイル24を流れる交流電流の周波数が特定の周波数となるように、電磁誘導コイル23に電力が供給されている。
図6から図8を参照して、実施の形態1における受電装置40の具体的構成について説明する。図6は、本実施の形態における電動車両10に搭載される受電装置の配置を示す車両の底面図、図7は、本実施の形態における電動車両10に搭載される受電装置の配置を示す部分横(左右方向)断面、図8は、本実施の形態における電動車両10に搭載される受電装置の配置を示す部分縦(前後方向)断面である。
次に、図9から図15を参照して、本実施の形態に係る電力伝送システムを搭載した車両について説明する。なお、上述の実施の形態1との相違は、外部に設けられた送電部28を含む送電装置41から非接触で電力を受電する受電部27を含む受電装置40を有することに、外部に設けられた給電コネクタに接続される充電部をさらに有する点にある。実施の形態1と同一または相当部分については、同一の参照番号を付し、重複する説明は繰り返さない場合がある。
Claims (11)
- フロアパネルと、
外部に設けられた送電装置から非接触で電力を受電する受電装置と、
前記受電装置に接続されるバッテリと、を備え、
前記バッテリは、前記フロアパネルの上方に配置され、
前記受電装置は、前記フロアパネルの下方に配置され、
平面視において、前記受電装置と前記バッテリとは少なくとも一部が重なるように配置され、
充電器をさらに備え、
前記充電器は、前記受電装置と前記バッテリとの間に配置されている、車両。 - 外部に設けられた給電コネクタに接続される充電部をさらに備え、
前記充電器は、前記充電部から給電される電力を、前記バッテリの充電電力に変換するとともに、前記受電装置から受電した電力を前記バッテリの充電電力に変換する、請求項1に記載の車両。 - 充電制御ユニットをさらに備え、
前記充電制御ユニットは、前記受電装置と前記バッテリとの間に配置される、請求項1または2に記載の車両。 - 前記受電装置の後端部は、前記バッテリの後端部よりも、当該車両の後側に突出するように配置されている、請求項1から3のいずれかに記載の車両。
- 前記送電装置は、非接触で電力を前記受電装置に送電する送電部を含み、
前記受電装置は、前記送電部から非接触で電力を受電する受電部を含み、
前記送電部の固有周波数と前記受電部の固有周波数との差は、前記受電部の固有周波数の10%以下である、請求項1に記載の車両。 - 前記送電装置は、非接触で電力を前記受電装置に送電する送電部を含み、
前記受電装置は、前記送電部から非接触で電力を受電する受電部を含み、
前記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に記載の車両。 - 前記送電装置は、非接触で電力を前記受電装置に送電する送電部を含み、
前記受電装置は、前記送電部から非接触で電力を受電する受電部を含み、
前記受電部は、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送電部から電力を受電する、請求項1に記載の車両。 - 非接触で電力を送電する送電装置と、
フロアパネル、前記送電装置から受電する受電装置、および前記受電装置に接続されるバッテリを含む車両と、を備え、
前記バッテリは、前記フロアパネルの上方に配置され、
前記受電装置は、前記フロアパネルの下方に配置され、
平面視において、前記受電装置と前記バッテリとは少なくとも一部が重なるように配置され、
前記車両は、充電器をさらに備え、
前記充電器は、前記受電装置と前記バッテリとの間に配置される、電力伝送システム。 - 前記車両は、外部に設けられた給電コネクタに接続される充電部をさらに備え、
前記充電器は、前記充電部から給電される電力を、前記バッテリの充電電力に変換するとともに、前記受電装置から受電した電力を前記バッテリの充電電力に変換する、請求項8に記載の電力伝送システム。 - 前記車両は、充電制御ユニットをさらに備え、
前記充電制御ユニットは、前記受電装置と前記バッテリとの間に配置される、請求項8または9に記載の電力伝送システム。 - 前記受電装置の後端部は、前記バッテリの後端部よりも、当該車両の後側に突出するように配置されている、請求項8から10のいずれかに記載の電力伝送システム。
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US9969281B2 (en) | 2018-05-15 |
US20140320078A1 (en) | 2014-10-30 |
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KR20140099276A (ko) | 2014-08-11 |
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