Research on Brake Thermal Simulation Technology Based on Heat Flux Theory

Based on the heat flux theory, the thermal simulation mathematical model of the braking system is established. By inputting the braking system parameters and some vehicle parameters into the model, the thermal simulation calculation of the braking system based on AMS operating conditions can be performed, and the temperature change curve of the entire braking process can be obtained. Comparing the simulation results with the real vehicle test results, the simulation accuracy of the final temperature under AMS operating conditions can reach to 90%. This technology, independent of finite element and CFD methods, can support the thermal degradation performance check in the early stage of brake selection to avoid design changes caused by the failure of the thermal degradation performance design. This simulation technology helps to cut clown development cycle and save development costs.