US 11,722,012 B2
Power feed system and power feed method
Daiki Yokoyama, Gotemba (JP); Toshiya Hashimoto, Miyoshi (JP); Katsuya Kobayashi, Okazaki (JP); Takahiro Hirano, Gotemba (JP); Midori Sugiyama, Susono (JP); and Ryunosuke Yamashita, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Jul. 1, 2022, as Appl. No. 17/856,919.
Claims priority of application No. 2021-110824 (JP), filed on Jul. 2, 2021.
Prior Publication US 2023/0006480 A1, Jan. 5, 2023
Int. Cl. H02J 50/40 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01); H02J 50/10 (2016.01)
CPC H02J 50/402 (2020.01) [H02J 50/10 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 16 Claims
OG exemplary drawing
 
1. A power feed system, comprising:
a power feed mat; and
a computer, wherein
the power feed mat includes a plurality of power transmission coils,
the power feed mat is configured to feed power to at least one movable body on the power feed mat by using at least one of the plurality of power transmission coils,
the computer is configured to determine whether to permit power feed to a movable body that requests power feed,
when the computer determines not to permit power feed, the power feed mat does not feed power to the movable body that requests power feed, and
the computer
determines whether the movable body that requests power feed falls under a subject movable body adapted to the power feed mat,
determines, when the movable body that requests power feed does not fall under the subject movable body, not to permit power feed to the movable body that requests power feed,
determines, when the movable body that requests power feed falls under the subject movable body and the power feed mat is not feeding power, to permit power feed to the movable body that requests power feed,
determines, when the movable body that requests power feed falls under the subject movable body and the power feed mat is feeding power to another movable body, whether total feed power in the power feed mat exceeds a power capacity of the power feed mat if power is fed simultaneously to all of the movable body that requests power feed and the another movable body,
determines, when the total feed power does not exceed the power capacity even if power is fed simultaneously to all of the movable body that requests power feed and the another movable body, to permit power feed to the movable body that requests power feed, and
determines, when the total feed power exceeds the power capacity if power is fed simultaneously to all of the movable body that requests power feed and the another movable body, whether to permit power feed to the movable body that requests power feed based on a priority of each of the movable body that requests power feed and the another movable body.