汽车主动悬架鲁棒保性能控制仿真研究-必读.pdf

学兔兔 汽 车 工 程 2014年(第36卷)第2期 Automotive Engineering 2014042 汽车主动悬架鲁棒保性能控制仿真研究 龙矗坤，文桂林，陈哲吾 (湖南大学，汽车车身先进设计与制造国家重点实验室，长沙 410082) [摘要] 针对具有控制量和输出硬约束的不确定系统，研究了一种鲁棒保性能控制方法，将汽车主动悬架的 控制问题视为有时域硬约束的鲁棒干扰抑制问题。将车身加速度作为系统的 最小化输出性能指标，悬架动行程 和轮胎动载荷作为日 性能指标，得到系统的鲁棒 ／H 最优保性能控制律。通过实例的仿真验证了鲁棒保性能 控制方法的有效性和可行性，改善了带主动悬架系统汽车的乘坐舒适性。 关键词：不确定性；硬约束；保性能鲁棒控制；主动悬架 A Simulation Study on Robust Guaranteed Cost Control for Vehicle Active Suspension Long Yaokun．Wen Guilin Chen Zhewu Hunan University，State Key Laboratory ofAdvanced Design and Manufacturingfor Vehicle Body，Changsha 410082 [Abstract] Aiming at the system with uncertainty in control variables and the hard constraints of output，a robust guaranteed cost control method is studied．Vehicle active suspension control problem is regarded as a robust disturbance attenuation problem with time-domain hard constraints．With vehicle body acceleration as minimized output performance indicator and the dynamic travel of suspension and the dynamic load of tire as performance indi- cators，the robust guaranteed cost control law of system is obtained．The results of real example simulation verify the effectiveness and feasibility of the method proposed，which improves the ride comfort of vehicles with active suspen— sion system． Keywords：uncertainty；hard constraint；robust guaranteed cost control；active suspension 以车辆参数完全已知为前提，具有一定的局限性；模 刚 舌 糊控制的控制精度一般不高，且模糊推理中人的经 验很重要； ／H