基于磁流变阻尼器的车辆悬架系统控制器设计  

Design of a Vehicle Suspension System Controller based on Magnetorheological Dampers

作　　者：赵新龙[1] 秦雯 吴双江 ZHAO Xinlong;QIN Wen;WU Shuangjiang(College of Mechanical Engineering and Automation, Zhejiang Sci-Tech University,Hongzhou 310018, China)

机构地区：[1]浙江理工大学机械与自动控制学院

出　　处：《噪声与振动控制》2019年第4期130-133,140,共5页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(61273184);浙江省自然科学基金资助项目(LY15F030022,LZ15F030005)

摘　　要：建立电流相关磁流变阻尼器模型并设计变增益模糊控制器。首先提出动态迟滞单元来描述磁流变阻尼器的迟滞特性,并将电流嵌入到模型参数中以建立电流相关磁流变阻尼器模型。然后针对以磁流变阻尼器为半主动控制元件的2自由度1/4车辆悬架系统,设计变增益模糊控制器,通过增益改变来适应路面随机激励的变化。仿真结果表明,变增益模糊控制器可对基于磁流变阻尼器的半主动控制悬架实现有效减振控制。A current-dependent magnetorheological damping model and a variable gain fuzzy controller are proposed for the vehicle suspension system. First of all, the model based on dynamic hysteresis operator (DHO) is developed to describe the hysteresis characteristics of magnetorheological damper. Moreover, the current is embedded into the model parameters to achieve current correlation. Then, a 2-DOF 1 / 4 vehicle suspension system is established using a magnetorheological damper as semi-active control element. For this vehicle suspension system, a variable gain fuzzy controller is designed to alleviate the influence of road random excitation. The simulation results show that the variable gain fuzzy controller can reduce vibration effectively for the vehicle suspension system.

关 键 词：振动与波 磁流变阻尼器 迟滞 变增益模糊控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]