农业机械学报2017，Vol.48Issue(2)：354-361,8.DOI:10.6041/j.issn.1000-1298.2017.02.048
基于单步法的车辆主动悬架有限频域静态输出反馈控制
Single-step Method Based Finite Frequency Static Output Feedback Control for Vehicle Active Suspension Systems
摘要
Abstract
A static output-feedback based finite frequency H∞ controller design method was proposed for vehicle active suspension systems.The static output-feedback controller gain matrix was directly derived via a single-step linear matrix inequality (LMI) optimization.As the previous finite frequency H∞ control theorem did not satisfy the sufficient conditions of single-step method and contained some bilinear terms.The static output-feedback control problem of previous finite frequency H∞ control theorem was infeasible.A new static output-feedback based finite frequency H∞ control theorem was given by using the generalized Kalman-Yakubovich-Popov (GKYP) lemma.The initial static output-feedback controller gain matrix can be directly solved by a single-step LMI optimization.Compared with the traditional iterative linear matrix inequality (ILMI) and cone complementarity linearization (CCL) algorithms,the design process was greatly simplified.The initial infeasibility issue of the static output-feedback control was resolved by using the state-feedback information.Finally,the effectiveness of the proposed method was validated by numerical and experimental results.The results for different road excitations showed that the finite frequency controlling can improve ride comfort effectively,while keeping suspension dynamic deflection,tire dynamic load and controlling input within allowable values.关键词
车辆/主动悬架/频域约束/静态输出反馈/H∞控制/线性矩阵不等式Key words
vehicle/active suspension/frequency-domain constraint/static output-feedback/H∞ control/linear matrix inequality分类
信息技术与安全科学引用本文复制引用
王刚,陈长征,于慎波..基于单步法的车辆主动悬架有限频域静态输出反馈控制[J].农业机械学报,2017,48(2):354-361,8.基金项目
国家自然科学基金项目(51175350)和辽宁省科技创新重大专项(2015106023) （51175350）
