A research on simulation and experiment for vehicle stability dynamics

Based on the analysis and simplifying of coach structure and load in the coach,and using the principle of ergonomics and vehicle system dynamics,the models of coach components,such as automobile tyre,suspension,passenger body,and so on,are respectively established,and ultimately the coach dynamics model of nine-degree of freedoms is founded.At the same time,experiments with SX6120A are carrying out on the road.Comparing the simulation results with the data of experiments on the road,the result shows that the coach dynamics model is true.Using the model,the responses of coach handling and stability are simulated under high-speed avoiding roadblock condition.