US 12,459,393 B2
Charging prediction system
Satoshi Inoue, Tokyo (JP); Hayata Mimatsu, Tokyo (JP); and Yasushi Takagi, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Aug. 25, 2023, as Appl. No. 18/455,846.
Claims priority of application No. 2022-149446 (JP), filed on Sep. 20, 2022.
Prior Publication US 2024/0092216 A1, Mar. 21, 2024
Int. Cl. B60L 53/66 (2019.01); B60L 53/68 (2019.01); G06Q 30/0202 (2023.01); G06Q 50/06 (2012.01)
CPC B60L 53/665 (2019.02) [B60L 53/68 (2019.02); G06Q 30/0202 (2013.01); G06Q 50/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A charging prediction apparatus comprising:
a controller communicatively coupled to vehicles and a charging station via a predetermined communication network,
the vehicles each comprising a drive source and an on-board battery configured to supply electric power to the drive source,
the charging station installed in association with a predetermined position on a specific traveling road and configured to charge the on-board battery,
wherein the controller comprises:
one or more processors; and
one or more memories coupled to the one or more processors,
wherein one or more processors are configured to:
calculate a charged vehicle ratio which is a ratio of a number of first vehicles to a number of second vehicles, the first vehicles being the vehicles having been charged at the charging station, the second vehicles being the vehicles having passed the charging station irrespective of whether the vehicles have been charged at the charging station;
calculate a first remaining traveling distance which is a distance travelable by each of the first vehicles with the electric power stored in the on-board battery immediately before charging at the charging station;
accumulate, in a storage device, historical data indicating the charged vehicle ratio for each of a plurality of values of a first remaining traveling distance;
determine, for each vehicle in a predetermined group, a predicted value of the charged vehicle ratio based on the historical data accumulated in the storage device and a remaining battery range of that vehicle, the predetermined group including ones of the vehicles currently traveling along the specific traveling road; and
estimate a predicted waiting period for charging at the charging station based on the predicted value of the charged vehicle ratio.