US 12,115,872 B2
Contactless power supply system and contactless power supply apparatus
Eisuke Takahashi, Kariya (JP); Nobuhisa Yamaguchi, Kariya (JP); Koji Mazaki, Kariya (JP); Shimpei Takita, Kariya (JP); Hayato Sumiya, Kariya (JP); Masaki Kanesaki, Kariya (JP); Takuya Kiguchi, Kariya (JP); Kazuhiro Uda, Kariya (JP); Mitsuru Shibanuma, Kariya (JP); Kazuyoshi Obayashi, Kariya (JP); Tomoyuki Fujikawa, Kariya (JP); Masaya Takahashi, Kariya (JP); and Yusei Nakayashiki, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Dec. 28, 2020, as Appl. No. 17/134,636.
Application 17/134,636 is a continuation of application No. PCT/JP2019/017046, filed on Apr. 22, 2019.
Claims priority of application No. 2018-120335 (JP), filed on Jun. 26, 2018; and application No. 2019-035163 (JP), filed on Feb. 28, 2019.
Prior Publication US 2021/0114465 A1, Apr. 22, 2021
Int. Cl. B60L 53/12 (2019.01); B60L 9/00 (2019.01); B60L 53/122 (2019.01); B60L 53/39 (2019.01); H01F 38/14 (2006.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01)
CPC B60L 53/122 (2019.02) [B60L 9/00 (2013.01); B60L 53/12 (2019.02); B60L 53/39 (2019.02); H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/402 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A contactless power supply system for supplying electric power to a vehicle in a contactless manner during traveling of the vehicle, the contactless power supply system comprising:
a plurality of primary coils installed along a traveling direction in a road; and
a secondary coil mounted to the vehicle,
wherein
each of the primary coils is a single-phase coil and the secondary coil is a two-phase coil that consists of a first-phase coil and a second-phase coil, and
the amplitude of a second-order component of the square of a coupling coefficient between each primary coil and the secondary coil is in a range of 0 to 0.001.