摘要
以设计的三级减振式主动悬架为研究对象,建立4自由度四分之一车三级减振式主动悬架动力学模型,以白噪声作为路面激励信号,建立路面模型。通过Matlab/Simulink软件建立三级减振式主动悬架的仿真模型。在C级路面下,基于PID对车身加速度进行控制,得出在有无PID控制车辆主动悬架系统的仿真对比。最后对车身加速度、悬架动行程和轮胎行程进行对比分析。结果证明,基于PID控制的三级减振式主动悬架能够更好的减小振动,使车辆的平顺性更好。
Taking the designed three-stage vibration-damping active suspension as the research object,a 4-DOF quarter-car three-stage vibration-damping active suspension dynamic model is established,and white noise is used as the road surface excitation signal to establish the road surface model.The simulation model of the three-stage vibration-damping active suspension is established by Matlab/Simulink software.Under the C-level road surface,the body acceleration is controlled based on PID,and the simulation comparison of the active suspension system with or without PID control is obtained.Finally,the vehicle body acceleration,suspension travel and tire stroke are compared and analyzed.The result proves that the three-stage vibration-damping active suspension based on PID control can better reduce the vibration and make the vehicle more smooth.
作者
钟建国
赵新龙
陈士安
ZHONG Jian-guo;ZHAO Xin-long;CHEN Shi-an(School of Mechanical and Automotive Engineering,Zhejiang Institute of Water Conservancy and Hydropower,Hangzhou Zhejiang 310018,China;School of Mechanical and Automatic Control,Zhejiang University of Technology,Hangzhou Zhejiang 310018,China)
出处
《装备制造技术》
2019年第7期30-33,50,共5页
Equipment Manufacturing Technology
关键词
PID控制
三级减振式
主动悬架
仿真研究
PID control
three-stage damping
active suspension
simulation research
