Patent ID: 8489315

Claim:
A power reception guidance device for installation in a vehicle having a power receiving unit, the device providing guidance to a non-contact power supply of a power supply unit installed in a parking area, the device comprising: a controller that: calculates an amount of required power that should be received by the power receiving unit; calculates an estimated parking time of the vehicle based on an average parking time associated with a type of facility where the parking area is located; calculates a power receiving efficiency of the power receiving unit at a current parking position of the vehicle in the parking area; calculates a power receiving amount to be received by the power receiving unit while the vehicle is parked, the power receiving amount being calculated based on the calculated power receiving efficiency and the calculated estimated parking time; and determines whether the current parking position must be changed based on the calculated power receiving amount and the calculated required power amount; and an output unit that outputs information based on the determination.