汽车磁流变半主动悬架模糊控制技术

Fuzzy Control of Vehicle Semi - active Suspension System via Magneto - Theological Fluid Damper

在对磁流变减振器的特性进行理论分析的基础上,建立了1/4车辆的磁流变半主动悬架模 型,设计了双输入单输出的自适应模糊控制器,并进行了仿真研究。仿真结果表明,相对于被动悬架和 简单模糊控制器,自适应模糊控制器能够更好地抑制车身的垂直振动,提高乘坐的舒适性。

A quarter - car suspension system in which the MR fluid dampers are used as the semi - active control actuators has been proposed and developed based on the theory analysis of MR fluid dampers characteristic. A adaptive fuzzy logic controller is developed. The completed system is simulated via SIMULINK Toolbox of MATLAB 6.1. Compared to the passive suspension system and simple fuzzy logic controller, the adaptive fuzzy logic controller markedly reduces the vertical acceleration of the sprung mass and effectively improves ride comfort of automobile.