PREHEAT METHOD FOR TRAVELING BATTERY FOR VEHICLE AND PREHEAT SYSTEM FOR TRAVELING BATTERY FOR VEHICLE

摘要

To provide a preheat method for a traveling battery for a vehicle that is able to preheat the traveling battery even in a case where the traveling battery is sufficiently charged, and to provide a preheat system for a traveling battery for a vehicle.SOLUTION: In a preheat method for a traveling battery 23 for a vehicle 2, which uses a power feed coil 56 disposed in the ground, as a state in which the bottom surface of a battery pack 22 storing the traveling battery is formed from a metal capable of induction heating with lines of magnetic force generated by the power supply coil 56 or as a state in which the metal is stuck to the bottom surface of the battery pack 22, when the traveling battery 23 is preheated without arranging a conductive member other than the metal below the battery pack 22 in the a vehicle, the vehicle is positioned (67) such that the battery pack 22 is located above the power supply coil 56 and the bottom surface of the battery pack 22 is induction heated with the lines of magnetic force generated by the power supply coil 56.SELECTED DRAWING: Figure 1