Simulation for vehicle pulse input based on rigid ring tire model

Aimed at the particularity of the vehicles ride pulse input running test, based on the rigid ring tire model and effect road profile, the 4 DOF dynamics model of vehicles is set up. Using Visual C++ 6.0 as development platform , the digital simulation program was developed by Runge-Kutta method. Comparison between simulation result and test result indicates that there is a well consistency between simulation results and test results. Compared with the point contact tire model, the average error of body acceleration drops 26.88%. the average error of axle´s acceleration drops 11.75%.