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    • 4. 发明公开
    • CONTACTLESS ELECTRICITY SUPPLY DEVICE
    • 非接触式电力供应装置
    • EP2717429A1
    • 2014-04-09
    • EP12792345.6
    • 2012-05-23
    • Nissan Motor Co., Ltd
    • MAIKAWA, KengoTANAKA, HiroshiIMAZU, Tomoya
    • H02J17/00
    • B60L11/182B60L53/12B60L53/124H02J7/025H02J50/10Y02T10/7005Y02T10/7072Y02T90/122Y02T90/14
    • contactless electric power supply device 100 to charge a battery 28 of a vehicle includes a power transmitting circuit 101 having a power transmitting coil 12 and a charging circuit 201 having a power receiving coil 22. An electric power is transmitted from power transmitting coil 12 to power receiving coil 22 in a contactless manner. When the vehicle approaches power supply device 100, a trial power supply in which a electric power transmission through a minute electric power is carried out is executed and a power transmission efficiency from power transmitting coil 12 to power receiving coil 22 is estimated on a basis of a current flowing through power transmitting circuit 101. From this power transmission efficiency, a determination of whether power receiving coil 22 falls in a range in which battery 28 is chargeable with respect to power transmitting coil 12 is made.
    • 对车辆的电池28进行充电的非接触式电力供给装置100包括具有送电线圈12的送电电路101和具有受电线圈22的充电电路201.电力从送电线圈12发送到电力 以非接触方式接收线圈22。 当车辆接近供电装置100时,执行其中执行通过微小电力的电力传输的试用电力供应,并且从电力传输线圈12到电力接收线圈22的电力传输效率基于 流过送电电路101的电流。根据该送电效率,判定受电线圈22是否落入能够对送电线圈12进行电池28的充电的范围内。