汽车半主动悬架集成优化仿真研究

Simulation study of integrated optimization for a vehicle semi-active suspension system

针对传统半主动悬架先设计其结构参数后设计其控制器参数 ,易造成系统失去全局最优性能的特点 ,文章提出一种基于遗传算法和 LQ G控制的集成优化半主动悬架结构参数和控制参数的方法 ,理论分析和仿真计算结果表明 ,此方法与传统优化方法相比 ,对提高汽车行驶平顺性和安全性具有较优的效果。

In this paper, an approach is presented to design the parameters of the vehicle semi active suspension system by integrating its structure and control parameters based on the genetic algorithm and LQG control.In the traditional design method of the system, control parameters is designed following structure parameters,and the global optimum performances of the system can not be achieved. Simulation results show that the proposed integrated optimization method is very effective in improving the riding performance and security of the vehicle.