Simulation on Fluctuant Effect of Automobile Brake Line Based on AMESim

The device producing a fluctuant load for automobile brake line is a new system to improve vehicle security and investigate an automobile's brake performance. In order to study the fluctuant effect caused by the system parameters, the hydraulic models around piston pump must be established, which are based on AMESim simulation platform. Some system parameters include motor rotary speed, piston diameter and brake liquid bulk modulus. By the simulation results, the analyses of fluctuant effect caused by the system parameters in brake lines have been conducted. Moreover, the simulation results, which are compared with bench test data, indicate that the system hydraulic pressure property can be effectively simulated, and the simulation model can be used for selection of key device parameters. The vehicle system models, which co-simulated with the hydraulic system models, have also been completed in the AMESim. The simulation results indicate that the simulation vehicle with the device is able to reduce the brake distance.