Patent ID: 9536655
Date: 2017-01-03
CPC Classifications: B60L,H01F,H02J,Y02T

Claim:
1. A wireless power feeding apparatus for feeding power in a contactless manner to a power reception device including a power reception unit, comprising: a power transmission unit for transmitting power to said power reception unit; an estimation unit for estimating a positional mismatch amount of said power reception unit relative to said power transmission unit, based on a power receiving state of said power reception device and reflected power in the wireless power feeding apparatus, by using a relation obtained in advance between the power receiving state and the reflected power, and the positional mismatch amount, wherein the positional mismatch amount is estimated using a map indicative a the relation between (i) the power receiving state and the reflected power and (ii) the positional mismatch amount; a detection device for detecting said reflected power; and a sensor for detecting the power receiving state in the power reception device.