摘要
设计了一种用于1/2车体四自由度的液压半主动悬架的参数自整定模糊PID控制器,利用模糊控制规则对PID参数进行在线修改。应用MATLAB/Simulink控制系统仿真软件,以正弦信号路面、脉冲信号路面和C级路面三种典型路面作为输入信号对该半主动悬架模型进行计算机仿真,仿真结果表明具有模糊PID控制器的半主动悬架在提高车辆乘坐的舒适性方面明显优于被动悬架和单纯的模糊控制悬架,具有较好的自适应能力。
A parameters - self - tuning fuzzy PID controller is designed for a half - car model with four - degree - of - free- doms semi - active hydraulic suspension. It can adjust PID parameters on - line according to the fuzzy control rules. The resuits of simulation by using MATLAB/Simulink shows, excited by sinusold road input, pulse road input and analogous Grade C road input, the ride comfort of hydraulic semi - active suspension with fuzzy PID controller is better than that of passive suspension and hydraulic semi - active suspension with fuzzy controller. Parameters - self- tuning fuzzy PID controller possesses better self- adaptation.
出处
《机械研究与应用》
2007年第3期85-87,92,共4页
Mechanical Research & Application
基金
甘肃省高等学校研究生导师科研项目(编号:0511-03)
