Title:
POWER RECEPTION DEVICE, POWER TRANSMISSION DEVICE, AND NONCONTACT POWER TRANSFER APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/054396
Kind Code:
A1
Abstract:
A power reception device capable of receiving alternating-current power in a noncontact manner from a power transmission device includes a secondary side coil, a fluctuating load, an impedance conversion unit, and a grasping unit. The secondary side coil is able to receive the alternating-current power from a primary side coil. The impedance of the fluctuating load fluctuates according to the power value of inputted power. The impedance conversion unit is provided between the secondary side coil and the fluctuating load and configured such that the impedance thereof is variable. The grasping unit grasps the power value of the alternating-current power outputted from an alternating-current power supply. The impedance of the impedance conversion unit is variably controlled when an electric characteristic dependent on the relative positions of the primary side coil and the secondary side coil fluctuates in the situation in which the grasping unit grasps that the power value of alternating-current power outputted from the alternating-current power supply does not fluctuate.
Inventors:
TSUNEKAWA YUKI (JP)
KONDO TADASHI (JP)
KOIKE TSUYOSHI (JP)
KATSUNAGA HIROSHI (JP)
MATSUKURA KEISUKE (JP)
TAGUCHI YUICHI (JP)
TOGANO HIROKI (JP)
INOUE KEISUKE (JP)
KONDO TADASHI (JP)
KOIKE TSUYOSHI (JP)
KATSUNAGA HIROSHI (JP)
MATSUKURA KEISUKE (JP)
TAGUCHI YUICHI (JP)
TOGANO HIROKI (JP)
INOUE KEISUKE (JP)
Application Number:
PCT/JP2013/074622
Publication Date:
April 10, 2014
Filing Date:
September 12, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
H02J7/00; B60L5/00; B60L11/18; B60M7/00
Domestic Patent References:
| WO2012111085A1 | 2012-08-23 | |||
| WO2011061821A1 | 2011-05-26 |
Foreign References:
| JP2011244530A | 2011-12-01 | |||
| JP2012110154A | 2012-06-07 | |||
| JP2012085426A | 2012-04-26 | |||
| JP2010141977A | 2010-06-24 | |||
| JP2010141976A | 2010-06-24 | |||
| JP2012135117A | 2012-07-12 | |||
| JP2009106136A | 2009-05-14 |
Other References:
See also references of EP 2905873A4
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
Makoto Onda (JP)
Makoto Onda (JP)
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