Thermal Management System for Automobile and Thermal Management Method Based on Same

A thermal management system includes a refrigerant loop system that includes a compressor, a refrigerant four-way reversing valve, a plate heat exchanger, a throttle valve, another plate heat exchanger, and a gas-liquid separator, to form a refrigerant loop, and a motor liquid cooling loop system includes a motor liquid cooling loop that circulates coolant through a motor, and a pipe in the motor liquid cooling loop is connected to a liquid cooling channel in the plate heat exchanger to exchange heat with the refrigerant loop system using the plate heat exchanger.