摘要
由于车辆各个车轮受路面的激励,车辆簧上质量的振动耦合了各个车轮引起的振动。为使车辆有效减振,建立了带主动悬架的整车非线性模型并利用微分几何方法对该非线性模型进行解耦。经过解耦的悬架系统簧上质量的垂向、俯仰和侧倾振动互相独立,成为独立的线性子系统,从而可以实现对其单独控制。设计了减振控制律,对解耦的悬架系统减振。仿真结果表明,簧上质量各个方向振动大幅衰减,说明该控制方法是有效的。
Since vehicle tires undergo excitation from the road,the sprung mass vibration couples that of the tires.In order to effectively attenuate the vibration of the vehicle,a full vehicle model with active suspension is established and decoupled using a differential geometry method.In the decoupled suspension system,the heaving,pitching,and rolling motion of the sprung mass are independent of each other and become separate linear subsystems,that can be controlled separately.An attenuation control rule is designed to attenuate the vibration of the decoupled suspension system.The simulations show that the vibration is greatly attenuated,which indicates that the control algorithm is effective.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2014年第2期366-371,402,共6页
Journal of Vibration,Measurement & Diagnosis
基金
国家自然科学基金资助项目(51175155)
湖南大学汽车车身先进设计制造国家重点实验室自主研究课题资助项目(60870002)
教育部长江学者与创新团队发展计划资助项目(531105050037)
湖北省自然科学基金资助项目(2013CFB046)
关键词
主动悬架
整车模型
微分几何
解耦控制
active suspension
full vehicle model
differential geometry
decoupling control
