Patent ID: 8504227

Claim:
A charging control device for independently controlling charging of power storage devices in a plurality of vehicles, respectively, each having said power storage device mounted thereon, from an external power supply, comprising: an electronic control unit having control logic configured to: detect a state of charge of each of said power storage devices after each vehicle and said external power supply are coupled to each other; detect an expected amount of power consumption for each of said plurality of vehicles by determining a required amount of power for a boarding of a vehicle of the plurality of vehicles based on information about a vehicle fuel efficiency and information about a running distance transmitted from the vehicle; calculate a required amount of power to be charged for each vehicle based on the detected state of charge and the expected amount of power consumption; detect a time to start use of each vehicle; determine a charging schedule of a charging time period and an amount of power to be charged for each vehicle based on said required amount of power to be charged and said time to start use; control charging of the power storage device mounted on said vehicle according to said charging schedule; to calculate charge efficiency of each of said power storage devices; and set said charging schedule further based on said charge efficiency by giving a vehicle having a low charge efficiency a lower priority of charging.