THERMAL MANAGEMENT DEVICE FOR VEHICLE
DRIVE
June 4, 2026
A battery thermal circuit receives, in a heat exchanger, heat from a high-temperature side heat medium flowing through a channel of an HT thermal circuit, and the temperature of a battery is increased. An electric pump (first electric pump) and an internal combustion engine are disposed in the channel of the HT thermal circuit (first thermal circuit). An electric pump (second electric pump) and an electric heater are provided in the channel of the HT thermal circuit. When a request is made to increase the temperature of the battery and the temperature of the high-temperature side heat medium of the channel is a predetermined temperature or higher, the electric pump is operated, and the ports of a four-way valve are connected. When the temperature is lower than the predetermined temperature, the electric pump is operated, the electric heater is energized, and the ports of the four-way valve are connected.
Discussion in the ATmosphere