CONTROL DEVICE, WIRELESS POWER TRANSMISSION DEVICE, AND TRANSMISSION EFFICIENCY ESTIMATION METHOD

WIPO Patent Application WO/2015/189997

A1

[Problem] To enable an indicator for transmission efficiency to be estimated even when only the characteristic value of one of the transmitting side and the receiving side is allowed to be used. [Solution] The control device as one embodiment of the present invention estimates an indicator for the power transmission efficiency between a power transmitting unit and a power receiving unit, said power transmitting unit including a first coil and a first capacitor, said power receiving unit including a second coil and a second capacitor and supplying the power received from the power transmitting unit to a load. The control device is equipped with an estimation unit for acquiring first information indicating the voltage at a first place in the power transmitting unit, second information indicating the current at a second place therein, third information indicating the voltage at a third place in the power receiving unit, and fourth information indicating the current at a fourth place therein and estimating an indicator for power transmission efficiency on the basis of any one of at least one characteristic value of a resistance component present in the power transmitting unit and at least one characteristic value of a resistance component present in the power receiving unit, the first information, the second information, the third information, and the fourth information.

ISHIHARA HIROAKI (JP)

PCT/JP2014/065783

December 17, 2015

June 13, 2014

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TOSHIBA KK (JP)

H02J17/00

JP2013090483A	2013-05-13
JP2013162709A	2013-08-19
JP2014103751A	2014-06-05
JP2013021906A	2013-01-31
JP2013110784A	2013-06-06

KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)

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