Study of Driving Performance of Semi-active Suspension Based on Hybrid Control Strategy

Abstract

In order to study the driving performance of semi-active suspension vehicle, a detailed multi-body driving dynamics model of the car were established by using SIMPACK software., and a hybrid control strategy was worked out by means of Matlab/Simulink. The Simpack-Matlab co-simulation method was used to analyze the ride ability of semi-active suspension. The result showed that, the semi-active suspension based on hybrid control strategy could reduce the body vertical acceleration, roll angular acceleration, pitch angular acceleration and suspension dynamic deflection, and that was not under the condition of the wheel dynamic load increase. The semi-active suspension based on hybrid control strategy could reduce the vehicle body vibration and improve the ride comfort under the condition of the value of dynamic tire load not to be increased.