The testing equipment often used in new energy vehicles includes the component and assembly cooling system test bench, which is based on the battery system and motor operation control assembly in the electric vehicle to test the heat dissipation performance, simulating the operating conditions of the vehicle cooling system and the vehicle. Air conditioners, controllers, ECU communications and overall performance and control strategies are used to analyze and evaluate the test content; there is also a comprehensive test bench for high and low temperature cooling cycles, which detects battery packs, on-board motors, hydrogen fuel cell membranes and electrodes, and new energy. Automotive cooling system, controller, water pump, etc.