摘要
为了设计适用于半主动悬架的控制方法,本文建立了1/4车辆模型的状态空间.并采用线性二次型最优控制策略(LQR),通过选取控制器的性能指标,从而确定了最优控制规律.并对可调阻尼减震器进行简化建模,利用Matlab/Simulink对LQR控制策略进行仿真.通过与传统被动悬架的仿真结果对比,证明与车辆舒适性相关的参量有明显优化.这种方法较好地达到了控制目标,提高了车辆性能.
In this paper, a state - space model of 1/4 car was established in order to design an LQR （Linear Quadratic Regulator） - controller for semi - active suspensions. With selecting of performance indica- tors, the optimal feedback law can be determined. The controller together with a simplified adaptive damper model was simulated with Matlab/Simulink. The results show that the comfort - relevant variables are optimized by comparing with the simulation results of passive suspensions. As a conclusion, this control strategy can a- chieve the control objectives and improve the final performance.
出处
《佳木斯大学学报（自然科学版）》
CAS
2013年第2期179-181,185,共4页
Journal of Jiamusi University：Natural Science Edition
