Abstract: A battery unit heating apparatus installed in a vehicle which can drive by power from at least one of an internal combustion engine and an electric motor which is driven by a battery unit as a power supply, includes: an induction unit for drawing in air for heating the battery unit; and an induction control unit for controlling the induction unit, when a temperature of the battery unit is lower than a first predetermined value, so as to generate a drawing force larger than a drawing force resulting when the vehicle is set to the other mode of two modes having different drive ratios of the internal combustion engine to the electric motor while the vehicle is running in such a state that the vehicle is set to one of the two modes in which the electric motor is employed more positively than the internal combustion engine.

Abstract: A battery unit heating apparatus installed in a vehicle which drive by power from at least one of an internal combustion engine and an electric motor which is driven by a battery unit as a power supply, includes: an induction unit for drawing in air for heating the battery unit; and an induction control unit for controlling the induction unit, when a temperature of the battery unit is lower than a first predetermined value, so as to generate a drawing force larger than a drawing force resulting when the vehicle is set to the other mode of two modes having different drive ratios of the internal combustion engine to the electric motor while the vehicle is running in such a state that the vehicle is set to one of the two modes in which the electric motor is employed more positively than the internal combustion engine.

Abstract: There is provided a battery unit cooling apparatus installed in a vehicle which can run on power from an electric motor driven by a battery unit as a power supply, comprising a cooling air generating unit for generating cooling air to cool the battery unit and an air volume control unit for controlling, when decelerating the vehicle which is set to operate in a high recovery efficiency mode of two modes which differ in recovery efficiency with which regenerative energy obtained from the electric motor when the vehicle is decelerated is recovered to the battery, the cooling air generating unit so as to generate a larger volume of cooling air than a volume of cooling air generated when the vehicle is set to operate in a low recovery efficiency mode. Consequently, sufficient cooling air can be supplied to the battery unit when the vehicle is decelerated which is set to operate in the high regenerative energy recovery efficiency.