噪声与振动控制2019，Vol.39Issue(2)：57-63,7.DOI:10.3969/j.issn.1006-1355.2019.02.011
持续有界路面激励下的车辆主动悬架可靠L1干抗抑制控制
Reliable L1 Disturbance Rejection Control of Vehicle Active Suspension Systems with Persistent Bounded Road Excitations
摘要
Abstract
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.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Key words
vibration and wave/ vehicle active suspension/ L1 disturbance rejection/ reliable control/ persistent bounded disturbance分类
信息技术与安全科学引用本文复制引用
王刚,陈海虹,周知进..持续有界路面激励下的车辆主动悬架可靠L1干抗抑制控制[J].噪声与振动控制,2019,39(2):57-63,7.基金项目
国家自然科学基金资助项目(51479073) （51479073）
黔科合平台人才资助项目([2017]5789-11) （[2017]5789-11）
