Thermal management system

A thermal management system comprising:

• a refrigerant circuit configured to circulate refrigerant and including a compressor, a high-temperature-side heat exchanger, a decompression device, and a low-temperature-side heat exchanger;
• a high-temperature-side heat medium circuit including a heater core that heats air supplied into a vehicle cabin and configured to circulate a heat medium capable of exchanging heat with the refrigerant via the high-temperature-side heat exchanger;
• a low-temperature-side heat medium circuit including a cooler core that cools air supplied into the vehicle cabin and configured to circulate a heat medium capable of exchanging heat with the refrigerant via the low-temperature-side heat exchanger;
• a battery temperature adjustment circuit including a battery temperature adjuster that adjusts a temperature of a battery;
• a motor temperature adjustment circuit including a motor temperature adjuster that adjusts a temperature of a motor;
• an outdoor heat exchange circuit including a radiator and configured to circulate a heat medium;
• and
• a channel switching device configured to switch the low-temperature-side heat medium circuit, the battery temperature adjustment circuit, the motor temperature adjustment circuit, and the outdoor heat exchange circuit between a connection state and an independent state, wherein
• at a time of startup, when the temperature of the battery is a predetermined lower limit or less, the channel switching device connects the low-temperature-side heat medium circuit and the outdoor heat exchange circuit, and
• connects the battery temperature adjustment circuit and the motor temperature adjustment circuit.