JP2017516436A - ワイヤレス充電における周波数保護のためのシステムおよび方法 - Google Patents
ワイヤレス充電における周波数保護のためのシステムおよび方法 Download PDFInfo
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Abstract
Description
102 入力電力
104 送電器
105 ワイヤレス場
108 受電器
110 出力電力
112 距離
114 送電アンテナまたはコイル
118 受電アンテナまたはコイル
200 ワイヤレス給電システム
204 送電器
206 送電回路
208 受電器
210 受電回路
218 受電アンテナ
219 通信チャネル
222 発振器
223 周波数制御信号
224 ドライバ回路
225 入力電圧信号
226 フィルタおよび整合回路
232 整合回路
233 周波数チェック構成要素
234 整流器回路
236 バッテリ
250 測定回路
252 変流器
254 エッジ検出器
256 基準クロック
260 マイクロコントローラ入力
262 マイクロコントローラ入力
264 マイクロコントローラ
270 受電電流または誘導電圧
272 測定波形
350 受電回路
352 アンテナまたはコイル
354 キャパシタ
356 キャパシタ
358 信号
401 電気車両
404 ワイヤレス給電および通信送電器
408 ワイヤレス給電および通信受電器
414 送電アンテナまたはコイル
418 受電アンテナまたはコイル
427 通信アンテナ
437 通信アンテナ
500 ワイヤレス給電システム
502 電力バックボーン
504 電気的接続
506 ベースパッド
508 バッテリ
Claims (30)
- ワイヤレス充電を制御するための装置であって、
第2のエンティティによる充電または第2のエンティティとの位置合わせ中に電磁誘導を介して前記第2のエンティティからワイヤレスで電流を受電するように構成される第1のエンティティの受電通信回路と、
前記電磁誘導によって誘導される受電電流または電圧の動作周波数を特定するように構成される周波数測定回路と、
前記動作周波数をしきい値と比較し、前記比較に基づいて前記充電または前記位置合わせの動作を調整するように構成されるコントローラであって、前記コントローラは、前記動作周波数としきい値との間の差が、第1の許容範囲レベル以下であるのに応答して前記充電または前記位置合わせを継続することによって、かつ前記差が前記第1の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否することによって、前記動作を調整するように構成される、コントローラとを備える、装置。 - 前記周波数測定回路は、前記受電電流または誘導電圧からの測定波形を生成するのに基づいて前記動作周波数を特定するように構成され、前記測定波形は前記動作周波数を示す、請求項1に記載の装置。
- 前記コントローラは、
前記動作周波数と公称周波数との間の誤差値を特定するために、前記動作周波数を前記公称周波数と比較することによって、前記動作周波数を前記しきい値と比較し、
前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するように構成される、請求項1に記載の装置。 - 前記第1の許容範囲レベルは前記動作周波数と前記公称周波数との間の5%差を成す、請求項3に記載の装置。
- 前記コントローラは、前記充電または前記位置合わせの前記動作に対する調整に関する信号を前記第2のエンティティに与えるように構成される、請求項1に記載の装置。
- 前記信号は、前記充電または前記位置合わせの前記動作に関連付けられる障害条件を示す、請求項5に記載の装置。
- 前記受電通信回路は、前記充電中に第1の電流を受電し、前記位置合わせ中に第2の電流を受電することによって、前記電流を受電するように構成される、請求項1に記載の装置。
- 前記周波数測定回路は、
前記第1の電流から第1の測定波形を生成することであって、前記第1の測定波形は前記第1の電流の第1の動作周波数を示す、生成することと、
前記第2の電流から第2の測定波形を生成することであって、前記第2の測定波形は前記第2の電流の第2の動作周波数を示す、生成することと
によって、前記動作周波数を特定するように構成される、請求項7に記載の装置。 - 前記コントローラは、
前記第1の動作周波数と前記第2の動作周波数との間の誤差値を特定するために前記第1の動作周波数と前記第2の動作周波数とを比較し、
前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するように構成される、請求項8に記載の装置。 - 前記コントローラは、
前記誤差値が前記第1の動作周波数と前記第2の動作周波数との間の差に関する第2の許容範囲レベル以下であるのに応答して、前記充電または前記位置合わせを継続し、
前記誤差値が前記第2の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否することによって、前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するように構成される、請求項9に記載の装置。 - 前記第1のエンティティは誘導性給電(IPT)受電器を含み、前記第2のエンティティはIPT送電器を含む、請求項1に記載の装置。
- 前記第1のエンティティは誘導性給電(IPT)送電器を含み、前記第2のエンティティはIPT受電器を含む、請求項1に記載の装置。
- ワイヤレス充電を制御するための第1のエンティティによって動作可能な方法であって、
第2のエンティティによる充電または第2のエンティティとの位置合わせ中に電磁誘導を介して前記第2のエンティティからワイヤレスで電流を受電するステップと、
前記電磁誘導によって誘導される受電電流または電圧の動作周波数を特定するステップと、
前記周波数をしきい値と比較するステップと、
前記動作周波数と前記しきい値との間の差が第1の許容範囲レベル以下であるのに応答して前記充電または前記位置合わせを継続することによって、かつ前記差が前記第1の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否することによって、前記比較に基づいて前記充電または前記位置合わせの動作を調整するステップとを含む、方法。 - 前記動作周波数を特定するステップは、前記受電電流または前記誘導電圧から測定波形を生成するステップを含み、前記測定波形は前記動作周波数を示す、請求項13に記載の方法。
- 前記動作周波数を前記しきい値と比較するステップは、前記動作周波数と公称周波数との間の誤差値を特定するために、前記動作周波数を前記公称周波数と比較するステップを含み、
前記動作を調整するステップは、前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するステップとを含む、請求項13に記載の方法。 - 前記充電または前記位置合わせの前記動作に対する調整に関する信号を前記第2のエンティティに与えるステップをさらに含む、請求項13に記載の方法。
- 前記信号は、前記充電または前記位置合わせの前記動作に関連付けられる障害条件を示す、請求項16に記載の方法。
- 前記電流を受電するステップは、前記充電中に第1の電流を受電し、前記位置合わせ中に第2の電流を受電するステップを含む、請求項13に記載の方法。
- 前記動作周波数を特定するステップは、
前記第1の電流から第1の測定波形を生成するステップであって、前記第1の測定波形は前記第1の電流の第1の動作周波数を示す、生成するステップと、
前記受電された第2の電流から第2の測定波形を生成するステップであって、前記第2の測定波形は前記第2の電流の第2の動作周波数を示す、生成するステップとを含む、請求項18に記載の方法。 - 前記第1の動作周波数と前記第2の動作周波数との間の誤差値を特定するために前記第1の動作周波数と前記第2の動作周波数とを比較するステップと、
前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するステップとをさらに含む、請求項19に記載の方法。 - 前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するステップは、
前記誤差値が前記第1の動作周波数と前記第2の動作周波数との間の差に関する第2の許容範囲レベル以下であるのに応答して、前記充電または前記位置合わせを継続するステップと、
前記誤差値が前記第2の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否するステップとを含む、請求項20に記載の方法。 - 第1のエンティティと第2のエンティティとの間のワイヤレス充電を制御するための装置であって、
第2のエンティティによる充電または第2のエンティティとの位置合わせ中に電磁誘導を介して前記第2のエンティティからワイヤレスで電流を受電するための手段と、
前記電磁誘導によって誘導される受電電流または電圧の動作周波数を特定するための手段と、
前記周波数をしきい値と比較するための手段と、
前記比較に基づいて前記充電または前記位置合わせの動作を調整するための手段であって、前記調整するための手段は、前記動作周波数と前記しきい値との間の差が第1の許容範囲レベル以下であるのに応答して前記充電または前記位置合わせを継続するための手段を備え、前記調整するための手段はさらに、前記差が前記第1の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否する手段を備える、調整するための手段とを備える、装置。 - 前記動作周波数を特定するための手段は、前記受電電流または前記誘導電圧から測定波形を生成するための手段を含み、前記測定波形は前記動作周波数を示す、請求項22に記載の装置。
- 前記動作周波数を前記しきい値と比較するための手段は、前記動作周波数と公称周波数との間の誤差値を特定するために、前記動作周波数を前記公称周波数と比較するための手段を含み、
前記動作を調整するための手段は、前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するための手段を含む、請求項22に記載の装置。 - 前記充電または前記位置合わせの前記動作に対する調整に関する信号を前記第2のエンティティに与えるための手段をさらに含む、請求項22に記載の装置。
- 前記信号は、前記充電または前記位置合わせの前記動作に関連付けられる障害条件を示す、請求項25に記載の装置。
- 前記受電するための手段は、前記充電中に第1の電流を受電するための手段と、前記位置合わせ中に第2の電流を受電するための手段を含む、請求項22に記載の装置。
- 前記動作周波数を特定するための前記手段は、
前記第1の電流から第1の測定波形を生成するための手段であって、前記第1の測定波形は前記第1の電流の第1の動作周波数を示す、生成するための手段と、
前記第2の電流から第2の測定波形を生成するための手段であって、前記第2の測定波形は前記第2の電流の第2の動作周波数を示す、生成するための手段とを備える、請求項27に記載の装置。 - 前記第1の動作周波数と前記第2の動作周波数との間の誤差値を特定するために前記第1の動作周波数と前記第2の動作周波数とを比較するための手段と、
前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するための手段とをさらに含む、請求項28に記載の装置。 - 前記誤差値に少なくとも部分的に基づいて前記充電または前記位置合わせを継続するか否かを判断するための前記手段は、
前記誤差値が前記第1の動作周波数と前記第2の動作周波数との間の差に関する第2の許容範囲レベル以下であるのに応答して、前記充電または前記位置合わせを継続するための手段と、
前記誤差値が前記第2の許容範囲レベルより大きいのに応答して前記充電または前記位置合わせを中止または拒否するための手段とを含む、請求項29に記載の装置。
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