基于Simulink的汽车主动悬架仿真分析

Simulation Analysis of Vehicle Active Suspension Based on Simulink

文章简要介绍了用Simulink建立主动悬架的仿真模型的方法。采用单轮车辆模型动力学方程,建立被动悬架的仿真模型。通过设计主动悬架的LQG控制器,建立主动悬架仿真模型。并将两种模型的车身加速度、悬架动行程、轮胎位移进行比较分析。结果表明LQG控制器的主动悬架能有效改善悬架性能。

This paper describes the simulation model using Simulink Active Suspension method. Establish a passivesuspension simulation model by using the single wheel vehicle model dynamics equations. By LQG controller design activesuspension, active suspension simulation model established. Compared and analyzed the body acceleration, suspensiondynamic travel, tire displacement of the two models. The results showed that the active suspension with LQG controller caneffectively improve the suspension performance.