文献类型：期刊文献

中文题名：持续有界路面激励下的车辆主动悬架可靠L_1干抗抑制控制

英文题名：Reliable L1Disturbance Rejection Control of Vehicle Active Suspension Systems with Persistent Bounded Road Excitations

作者：王刚 陈海虹 周知进

第一作者：王刚

机构：[1]贵州理工学院机械工程学院

第一机构：贵州理工学院机械工程学院

年份：2019

卷号：39

期号：2

起止页码：57-63

中文期刊名：噪声与振动控制

外文期刊名：Noise and Vibration Control

收录：CSTPCD;;CSCD:【CSCD_E2019_2020】；

基金：国家自然科学基金资助项目(51479073);黔科合平台人才资助项目([2017]5789-11)

语种：中文

中文关键词：振动与波;车辆主动悬架;L1干扰抑制;可靠性控制;持续有界干扰

外文关键词：vibration and wave;vehicle active suspension;L1 disturbance rejection;reliable control;persistent bounded disturbance

摘要：在车辆主动悬架控制中,路面激励通常可作为一类持续有界的外部干扰建模。针对该问题提出车辆主动悬架的可靠L_1干扰抑制控制方法。区别于以往的H_∞/GH_2控制方法,无需假设路面干扰为能量有界的情况。在控制器设计中,使用L_1性能指标提高汽车悬架的舒适性,同时保证悬架的其它性能,如悬架动行程、轮胎动载荷、控制饱和和执行器错误。以线性-分数矩阵不等式给出控制设计条件,控制器可根据凸优化方法和广义特征值问题求得,且相应的闭环系统具有指数稳定性及L_1干扰抑制性能。最后通过数值实例表明,在持续有界的正弦型和随机白噪声路面激励下,系统具有理想的驾驶舒适性能,并能保证悬架硬约束。
In the vehicle suspension active control, the road excitation can usually be modeled as a kind of persistent bounded external disturbance. In this paper, a reliable L1 disturbance rejection control method for vehicle active suspension systems is proposed. Compared with the previous H∞/GH2 control scheme, the advantage of the presented method for active control of the suspensions is that the energy-bounded assumption of the road disturbance signals is unnecessary. In the controller design, L1 performance index is used to improve the ride comfort quality and ensure the other suspension properties such as dynamic deflection of the suspension, tire dynamic load, saturation control and possible actuator failures. The design condition of the controller is formulated in terms of linear-fractional matrix inequalities (LFMIs). The controller can be solved by the convex optimization approach and generalized eigenvalue problem (GEVP) method, and the resulted closed-loop system is exponentially stable with guaranteed robust performance in the L1 sense. Numerical examples show that the proposed control scheme can achieve an ideal ride comfort under persistent bounded sinusoidal and random road profiles with the hard constraints of the suspension guaranteed.