Control device, control method, and storage medium for contactless power transmission system

A control method for a contactless power transmission system that transmits power in a contactless manner between a vehicle-side unit and a ground-side unit, the vehicle-side unit including a vehicle-side coil mounted on a vehicle that includes a battery, the ground-side unit including a ground-side coil provided outside the vehicle, the control method comprising:

• acquiring, when a metal foreign object is present on a surface of the ground-side unit, position information on the metal foreign object;
• moving the vehicle based on the position information on the metal foreign object to change a relative position between the metal foreign object and the vehicle-side unit;
• and
• energizing the vehicle-side coil with an alternating current after or during movement of the vehicle.

A non-transitory computer-readable storage medium storing a control program for a computer to perform processing, the computer configured to control a contactless power transmission system that transmits power in a contactless manner between a vehicle-side unit and a ground-side unit, the vehicle-side unit including a vehicle-side coil mounted on a vehicle that includes a battery, the ground-side unit including a ground-side coil provided outside the vehicle, the processing comprising:

• acquiring, when a metal foreign object is present on a surface of the ground-side unit, position information on the metal foreign object;
• moving the vehicle based on the position information on the metal foreign object to change a relative position between the metal foreign object and the vehicle-side unit;
• and
• energizing the vehicle-side coil with an alternating current after or during movement of the vehicle.