Patent ID: 8258744

Claim:
A charging control apparatus for a vehicle including a charging system for charging a power storage device with electric power supplied from a power supply external to the vehicle through a charging cable, said vehicle receiving a pilot signal from an oscillator provided in said charging cable when said charging cable connects said power supply and said vehicle, said oscillator causing said pilot signal to oscillate in a pulse width based on magnitude of a rated current that can be supplied to said vehicle, in response to a change in a potential of said pilot signal from an initial potential to an oscillation potential, said charging control apparatus comprising: a control pilot line to which said pilot signal is input when said charging cable is connected to said vehicle; a resistance element connected between said control pilot line and a vehicle earth, for changing the potential of said pilot signal from said initial potential to said oscillation potential; a switching unit connected either between said control pilot line and said resistance element or between said resistance element and said vehicle earth, and switched to any one of a separated state where said resistance element is separated from any one of said control pilot line and said vehicle earth, and a connected state where said resistance element is connected to said control pilot line and said vehicle earth; and a control unit for starting activation of said charging system based on a potential of said control pilot line wherein said control unit controls said switching unit to said separated state at least upon connecting said charging cable and said vehicle.