磁流变液电控转向阻尼器的控制系统研究  

Study on the Control System of the Electro-controlled Steering Damper Based on Magnetorheological Fluid

作　　者：徐杰[1,2] 曹建国[1,2] 杨新桦[3] 

机构地区：[1]重庆广播电视大学,重庆400052 [2]重庆工商职业学院,重庆400052 [3]重庆理工大学,重庆400050

出　　处：《机床与液压》2011年第23期71-73,共3页Machine Tool & Hydraulics

基　　金：重庆市教育委员会科学技术研究项目(KJ101603)

摘　　要：介绍一种基于磁流变液的电控转向阻尼器的结构及其工作原理。为指导车辆电控转向阻尼器控制系统的设计,建立车辆转向系统动力学方程和基于磁流变液的转向阻尼器的动力学方程,设计转向阻尼器的PID控制器,利用Modelica仿真语言,在多领域复杂物理系统建模与仿真的MWorks平台上对该系统进行仿真分析。结果表明:这种阻尼器能够有效地提高转向系统稳定性,减少车辆横摆角速度的超调量,更重要的是能够保证在车辆高速行驶时,大幅度减小车辆横摆角速度,提高车辆转向稳定性。The structure and working principle of a kind of electro-controlled steering damper in which magnetorheological fluid was used as working medium were introduced. In order to design the control system of the electro-controlled steering damper, the dy- namic equations of the vehicle＇s steering system and the damper based on magnetorheological fluid were established, and a PID controller for the steering damper was designed. The control system was simulated by using a simulation language Modeliea on MWorks, which was a simulation platform for complex physical system modeling and simulation. The results show that using the damper, the stability of the steering system can be effectively increased, the over run of the vehicle＇s yaw speed can be decreased, and more important, the vehicle＇s yaw speed can be reduced greatly and the vehicle＇s steering stabilization can be improved especially when the vehicle runs at high speed.

关 键 词：电控转向系统 磁流变液 控制系统 转向阻尼器 仿真分析 

分 类 号：U463.211[机械工程—车辆工程]