JP5848359B2 - 車両の受電装置、送電装置および非接触送受電システム - Google Patents
車両の受電装置、送電装置および非接触送受電システム Download PDFInfo
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- JP5848359B2 JP5848359B2 JP2013542731A JP2013542731A JP5848359B2 JP 5848359 B2 JP5848359 B2 JP 5848359B2 JP 2013542731 A JP2013542731 A JP 2013542731A JP 2013542731 A JP2013542731 A JP 2013542731A JP 5848359 B2 JP5848359 B2 JP 5848359B2
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- B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02T10/00—Road transport of goods or passengers
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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
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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
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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
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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
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Description
図1は、この発明の実施の形態に係る電力送受電システムの全体構成図である。
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。
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、第2コイル93および第3コイル96の固有周波数のズレと電力伝送効率との関係を図5に示す。なお、このシミュレーションにおいては、共振コイル94および共振コイル99の相対的な位置関係は固定とし、さらに、第2コイル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%程度となる。固有周波数のズレ(%)が±10%の場合には、電力伝送効率は10%程度となる。固有周波数のズレ(%)が±15%の場合には、電力伝送効率は5%程度となる。すなわち、固有周波数のズレ(%)の絶対値(固有周波数の差)が、第3コイル96の固有周波数の10%以下の範囲となるように第2コイル93および第3コイル96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(%)の絶対値が第3コイル96の固有周波数の5%以下となるように第2コイル93および第3コイル96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。
図6は、図1に示した電力送受電システム10の詳細構成図である。図6を参照して、車両100は、受電ユニット110および通信部160に加えて、整流器180と、充電リレー(CHR)170と、蓄電装置190と、システムメインリレー(SMR)115と、パワーコントロールユニットPCU(Power Control Unit)120と、モータジェネレータ130と、動力伝達ギヤ140と、駆動輪150と、制御装置である車両ECU(Electronic Control Unit)300と、電流センサ171と、電圧センサ172とを含む。受電ユニット110は、二次自己共振コイル111と、コンデンサ112と、二次コイル113とを含む。
図7は、各種の車両における受電ユニットの配置を説明するための図である。図7に、4台の車両例を示す。
車両における受電ユニットの位置を定義するためには、たとえば以下1)〜6)のデータが必要である。
1)後輪軸から受電ユニット重心(または中心)までの距離[mm]
2)前輪軸から受電ユニット重心(または中心)までの距離[mm]
3)受電ユニット重心(または中心)と車両中心からのズレの距離[mm]
4)受電ユニットサイズ(縦、横)[mm]
5)車両サイズ(縦、横)[mm]
6)受電ユニット下面の地上高さ[mm]
なお、受電ユニットの重心とは、平面に投影されたユニットの外形図形の重心を意味する。また本明細書においてユニットの中心とは、ユニットが円形であれば円の中心を意味し、ユニットが多角形であればその多角形の内接円または外接円の中心を意味する。また、重心や中心に限らず、たとえばユニット端部位置など、ユニット位置を特定可能な情報であればその情報に代えてもよい。
11)車輪止め前端から送電ユニット重心(または中心)までの距離[mm]
12)送電ユニット重心(または中心)と駐車スペース中心からのズレの距離[mm]
13)送電ユニットサイズ(縦、横)[mm]
14)駐車スペースサイズ(縦、横)[mm]
15)駐車スペース重心(または中心)から車輪止め前端までの距離までの距離[mm]
16)送電ユニット上面の地上高さ[mm]
なお、送電ユニットの重心とは、平面に投影されたユニットの外形図形の重心を意味する。また本明細書においてユニットの中心とは、ユニットが円形であれば円の中心を意味し、ユニットが多角形であればその多角形の内接円または外接円の中心を意味する。また、重心や中心に限らず、たとえばユニット端部位置など、ユニット位置を特定可能な情報であればその情報に代えてもよい。
図9は、実施の形態1において車両及び送電装置において実行される制御を説明するためのフローチャートである。
1)後輪軸から受電ユニット重心(または中心)までの距離L1[mm]
2)前輪軸から受電ユニット重心(または中心)までの距離L2[mm]
3)受電ユニット重心(または中心)と車両中心からのズレの距離L3,D3[mm]
4)受電ユニットサイズ(縦、横)L4,W4[mm]
5)車両サイズ(縦、横)L5,W5[mm]
6)受電ユニット下面の地上高さH6[mm]
なお、受電ユニットの重心とは、平面に投影されたユニットの外形図形の重心を意味する。また本明細書においてユニットの中心とは、ユニットが円形であれば円の中心を意味し、ユニットが多角形であればその多角形の内接円または外接円の中心を意味する。また、重心や中心に限らず、たとえばユニット端部位置など、ユニット位置を特定可能な情報であればその情報に代えてもよい。また、ユニットに指向性がある場合などでは、搭載角度を上記情報に含めてもよい。ここで、搭載角度は、たとえば車両前後方向を基準としたときのユニットの回転角を意味する。
実施の形態2では、送電装置に複数の送電ユニットが設けられている場合や、送電装置に可動式の送電ユニットが設けられている場合の例を説明する。実施の形態2では実施の形態1の図9で説明した処理に加えてステップS132、S134に示すように送電コイルの選択または移動を行なう処理が実行される。
図17は、実施の形態3において車両及び送電装置において実行される制御を説明するためのフローチャートである。
11)車輪止め前端から送電ユニット重心(または中心)までの距離K1[mm]
12)送電ユニット重心(または中心)と駐車スペース中心からのズレの距離K2L、K2W[mm]
13)送電ユニットサイズ(縦、横)KL3,KW3[mm]
14)駐車スペースサイズ(縦、横)KL4,KW4[mm]
15)駐車スペース重心(または中心)から車輪止め前端までの距離K5[mm]
16)送電ユニット上面の地上高さKH6[mm]
なお、送電ユニットの重心とは、平面に投影されたユニットの外形図形の重心を意味する。また本明細書においてユニットの中心とは、ユニットが円形であれば円の中心を意味し、ユニットが多角形であればその多角形の内接円または外接円の中心を意味する。また、重心や中心に限らず、たとえばユニット端部位置など、ユニット位置を特定可能な情報であればその情報に代えてもよい。また、ユニットに指向性がある場合などでは、搭載角度を上記情報に含めてもよい。ここで、搭載角度は、駐車スペースの前後方向(または長手方向)を基準としたときの回転角を意味する。
実施の形態4では、車両に複数の受電ユニットが設けられている場合や、車両に可動式の受電ユニットが設けられている場合の例を説明する。実施の形態4では実施の形態3の図17で説明した処理に加えてステップS232、S234に示すように受電コイルの選択または移動を行なう処理が実行される。
図6、図9〜16に示すように、実施の形態1および2に係る発明は、車両外部の送電装置200から非接触で受電することが可能な車両の受電装置に関する。車両100の受電装置は、送電装置200から非接触で受電可能に構成された受電ユニット110と、受電ユニット110に関する情報(位置または大きさなどに関する情報)を送電装置200に送信する通信部160とを備える。
Claims (9)
- 車両外部の送電装置から非接触で受電することが可能な車両の受電装置であって、
前記送電装置から非接触で受電可能に構成された受電ユニットと、
前記送電装置から送電ユニットの大きさに関する情報を受信する通信部と、
報知部とを備え、
前記報知部は、前記情報に基づいて判定された非接触充電の可否についての判定結果を乗員に報知する、車両の受電装置。 - 前記情報は、前記送電ユニットのサイズに加えて、前記送電ユニットが配置されている駐車スペースのサイズ、前記駐車スペースにおける前記送電ユニットの搭載位置、前記駐車スペースにおける前記送電ユニットの搭載角度の少なくともいずれか1つを含む、請求項1に記載の車両の受電装置。
- 前記報知部は、前記情報に基づいて判定された車両の誘導方向についての判定結果を前記送電装置から受け、乗員に報知する、請求項2に記載の車両の受電装置。
- 非接触で送電することが可能な送電装置であって、
車両に車両外部から非接触で送電可能に構成された送電ユニットと、
前記送電ユニットの大きさに関する情報を前記車両に送信する通信部と、
前記通信部を制御する制御装置とを備え、
前記制御装置は、前記情報に基づいて判定された非接触充電の可否についての判定結果を前記車両から受ける、送電装置。 - 前記情報は、前記送電ユニットのサイズに加えて、前記送電ユニットが配置されている駐車スペースのサイズ、前記駐車スペースにおける前記送電ユニットの搭載位置、前記駐車スペースにおける前記送電ユニットの搭載角度の少なくともいずれか1つを含む、請求項4に記載の送電装置。
- 前記制御装置は、前記情報に基づいて判定された車両の誘導方向についての判定結果を前記車両から受ける、請求項5に記載の送電装置。
- 前記車両は、複数の受電ユニットを含み、
前記制御装置は、前記複数の受電ユニットのうちから受電に使用する受電ユニットを決定するために前記通信部を用いて前記情報を前記車両に送信する、請求項5に記載の送電装置。 - 前記車両は、可動式の受電ユニットを含み、
前記制御装置は、前記受電ユニットの位置を決定するために前記通信部を用いて前記情報を前記車両に送信する、請求項5に記載の送電装置。 - 非接触送受電システムであって、
車両に搭載された受電装置と、
車両外部の送電装置とを備え、
前記送電装置は、
車両に車両外部から非接触で送電可能に構成された送電ユニットと、
前記送電ユニットの大きさに関する情報を前記車両に送信する通信部とを含み、
前記受電装置は、
前記情報に基づいて判定された非接触充電の可否についての判定結果を乗員に報知する報知部を含む、非接触送受電システム。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/075673 WO2013069089A1 (ja) | 2011-11-08 | 2011-11-08 | 車両の受電装置、送電装置および非接触送受電システム |
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| JPWO2013069089A1 JPWO2013069089A1 (ja) | 2015-04-02 |
| JP5848359B2 true JP5848359B2 (ja) | 2016-01-27 |
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| EP (1) | EP2777976A4 (ja) |
| JP (1) | JP5848359B2 (ja) |
| KR (1) | KR101659673B1 (ja) |
| CN (3) | CN103917400B (ja) |
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| EP3413427A1 (en) | 2017-06-08 | 2018-12-12 | Toyota Jidosha Kabushiki Kaisha | Power transmitting device and power receiving device |
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| WO2013076834A1 (ja) | 2011-11-24 | 2013-05-30 | トヨタ自動車株式会社 | 送電装置、車両および非接触送受電システム |
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| US9302594B2 (en) * | 2012-07-31 | 2016-04-05 | Qualcomm Incorporated | Selective communication based on distance from a plurality of electric vehicle wireless charging stations in a facility |
| JP5900636B2 (ja) * | 2012-09-27 | 2016-04-06 | Tdk株式会社 | 移動体システム |
| JP2015100246A (ja) * | 2013-11-20 | 2015-05-28 | トヨタ自動車株式会社 | 非接触電力伝送システム、充電ステーション、および車両 |
| JP6409271B2 (ja) * | 2013-12-02 | 2018-10-24 | 株式会社豊田自動織機 | 非接触電力伝送システム及び受電装置 |
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Cited By (3)
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| EP3413427A1 (en) | 2017-06-08 | 2018-12-12 | Toyota Jidosha Kabushiki Kaisha | Power transmitting device and power receiving device |
| US10833534B2 (en) | 2017-06-08 | 2020-11-10 | Toyota Jidosha Kabushiki Kaisha | Power transmitting device and power receiving device |
| US11303157B2 (en) | 2017-06-08 | 2022-04-12 | Toyota Jidosha Kabushiki Kaisha | Power transmitting device and power receiving device |
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| CN103917400A (zh) | 2014-07-09 |
| US20140292270A1 (en) | 2014-10-02 |
| CN103917400B (zh) | 2017-04-05 |
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| RU2572994C1 (ru) | 2016-01-20 |
| US10500964B2 (en) | 2019-12-10 |
| EP2777976A4 (en) | 2015-09-30 |
| CN107089150A (zh) | 2017-08-25 |
| KR20140073545A (ko) | 2014-06-16 |
| CN106828118A (zh) | 2017-06-13 |
| KR101659673B1 (ko) | 2016-09-26 |
| US20180257493A1 (en) | 2018-09-13 |
| JPWO2013069089A1 (ja) | 2015-04-02 |
| CN106828118B (zh) | 2020-05-01 |
| RU2014117501A (ru) | 2015-12-27 |
| WO2013069089A1 (ja) | 2013-05-16 |
| CN107089150B (zh) | 2020-06-12 |
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