摘要
针对汽车非线性主动悬架系统,提出一种基于自适应事件触发机制的动态输出反馈控制方法。首先,为了更贴切地刻画出悬架系统弹性元件和阻尼器的非线性特征,建立一种基于区间二型模糊方法的汽车悬架模糊模型;其次,提出一种自适应事件触发通信机制,相较于采样通信机制,能减小网络负载,从而节约通信资源;再次,在时滞理论的基础上,建立非线性悬架自适应事件触发控制的闭环系统模型,并提出一种事件触发器和动态输出反馈控制器的协同设计方法;最后,在不同道路干扰条件下进行台架试验。结果表明,所提方法能够实现悬架系统乘坐舒适性和通信资源节约性的双重提升。
A fuzzy dynamic-output-feedback control method is presented based on adaptive event-triggered mechanism for vehicle nonlinear active suspension systems.Firstly,an interval type-2 fuzzy model of vehicle nonlinear suspension system is established to accurately characterize the nonlinear characteristics of spring and damper.Secondly,an adaptive event-triggered strategy is adopted to reduce network load.Compared with the sampling communication mechanism,it can effectively save communication resources.Thirdly,the closed-loop system model of adaptive event-triggered control of nonlinear suspension is constructed based on the description method of time-delay.On the basis,a co-design method of the event generator and the dynamic-output-feedback controller is obtained.Finally,the bench test under different road disturbances is carried out.The experimental results show that the proposed approach is more effective to simultaneously improve the performance of the ride comfort and saving communication resource.
作者
贾俊茹
郑黎明
张镇
JIA Junru;ZHENG Liming;ZHANG Zhen(College of Engineering,Ministry of Education,Shantou University,Shantou 515063,China;Key Laboratory of Intelligent Manufacturing Technology,Ministry of Education,Shantou University,Shantou 515063,China)
出处
《控制工程》
北大核心
2026年第2期279-290,共12页
Control Engineering of China
关键词
二型模糊模型
事件触发
动态输出反馈
非线性悬架系统
Type-2 fuzzy model
event-triggered
dynamic-output-feedback
nonlinear suspension systems
