摘要
以白噪声和正弦信号作为路面激励信号,建立路面模型,再利用主动悬架的二自由度动力学模型,在Matlab/Simulink中搭建系统的仿真模型。分别在两种路面信号输入下,得到有无PID控制的主动悬架系统的仿真曲线。结合台架试验,对车身垂直加速度、悬架动挠度和轮胎动载荷进行了对比分析,证明基于PID控制器的主动悬架能够使汽车具有更好的行驶平顺性。
The road model was established white noise and sine signal were taken as the road excitation signal. Two dynamic models of active suspension were utilized in creating the system simulation via Matlab / Simulink. Taking the two signals as input respectively,the simulation curves of active suspension system with and without PID controller were obtained. Then the curves were compared with each other. The body vertical acceleration,suspension dynamic deflection and tire dynamic load were compared and analyzed. It proves that the active suspension system based on PID controller increases the ride comfort of vehicles.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2015年第6期680-683,共4页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
中央高校基本科研业务费专项资金资助项目(2015Ⅲ002)
