VEHICLE, POWER TRANSMISSION DEVICE, AND NON CONTACT POWER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a non contact power supply system capable of efficiently preventing deterioration of the electric power transmission efficiency.SOLUTION: A non contact power supply system 10 transmits electric power from a power transmission device 200 to a vehicle 100 in a non contact manner. The vehicle 100 includes: a power reception part 110 receiving the electric power from the power transmission device 200 in the non contact manner; a power storage device 190 storing the electric power received by the power reception part 110; and an impedance adjustment part 181 including a DC/DC converter 185 for adjusting impedance between the power reception part 110 and the power storage device 190 and a relay RY10. A vehicle ECU 300 switches an electric power supply passage between an electric power supply passage, where the impedance is adjusted by the DC/DC converter 185, and an electric power supply passage, where the DC/DC converter is not used, on the basis of the charging state of the power storage device 190.