The Simulation Analysis of Three-Axle Vehicle Comfort on Simulink

In this paper, to research the independent suspension system of three-axle vehicle ride comfort, developed a nine freedom model of vehicle dynamic. Utilized Lagrange method to derive the system vibration equation, absolute value of the center of mass acceleration metrics, computer simulation in time domain of the vehicle ride on D grade road that use the SIMULINK was carried out, analysis verify the correctness of model. To analyze the vehicle ride comfort by changing the distance between the triaxial in model, improve vehicle ride optimize reference.