Patent attributes
An electric power reception control unit of a vehicle generates an electric power transmission command for adjusting received electric power to an electric power reception command. The generated electric power transmission command is transmitted from the vehicle to a charging station via radio communication. An electric power transmission control unit of the charging station adjusts transmission electric power, which is transmitted from the charging station to the vehicle, to the electric power transmission command received from the vehicle. Responsiveness of electric power reception control carried out in the electric power reception control unit is lower than responsiveness of electric power transmission control carried out in the electric power transmission control unit.