Closed-loop simulation and evaluation of vehicle handling stability on the basis of SIMPACK

Using a new multi-body simulation software SIMPACK as platform, a whole mini-car model is built, and a PID controller with time-delay transfer function is adopted to set up the driver control model. A closed-loop simulation of severe double-lane change test is carried out. And according to the human-vehicle-road closed-loop maneuverability evaluation, the handling stability of the model is graded. The results show that, the whole vehicle model with driver control model has a good tracking performance, and the human-vehicle-road closed-loop maneuverability evaluation indicator J_T =1.6872. these match the results of similar researches, and well reflect the vehicle handling stability.