To take a measure not to give a crew member unwell feeling of heat of wind exhausted from a battery cooling device in a vehicle equipped with the battery cooling device which makes air inhaled from a crew member room pass inside a battery case and exhausts the air into the inside of the vehicle.

The vehicle has the battery cooling device which makes the air inhaled from the crew member room pass inside the battery case and exhausts the air into the inside of the vehicle. In a case that a cooling fan of the battery cooling device is being driven (YES in S10) and the battery cooling device is in an internal air circulation mode (YES in S11), an ECU measures a mean square value of a battery current Ib (S12) and calculates a battery saturation temperature T3 from an intake air temperature T1 and the mean square value of the battery current Ib (S13). Furthermore, in a case that a difference between the battery saturation temperature T3 and a room temperature T2 exceeds a predetermined value ▵T (YES in S14), the ECU controls heat generation of a battery 11 by performing input restriction (S15) or output restriction (S17) of the battery 11.