Thermal management system for vehicle

A thermal management system for a vehicle, the thermal management system comprising:

• a battery line, through which cooling water flows, having a first pump and connecting a first radiator and a high-voltage battery core to each other for exchanging heat therebetween;
• a refrigerant line, through which a refrigerant circulates, having a compressor, an expansion valve, a condenser, and an evaporator;
• an interior cooling line, through which cooling water flows, having a second pump and connecting an interior air-conditioning cooling core with a first heat exchanger to exchange heat with the evaporator;
• an interior heating line, through which cooling water flows, having a third pump and connecting an interior air-conditioning heating core with a second heat exchanger to exchange heat with the condenser;
• a first battery cooling line diverging from a downstream side of the cooling core of the interior cooling line, connected to an upstream side of the high-voltage battery core of the battery line, and having a cooling control valve controlling whether to allow cooling water, which has passed through the cooling core, to flow into the high-voltage battery core;
• and
• a first battery heating line diverging from a downstream side of the heating core of the interior heating line, connected to an upstream side of the high-voltage battery core of the battery line, and having a heating control valve controlling whether to allow cooling water, which has passed through the heating core, to flow into the high-voltage battery core.