摘要
在建立车辆非平稳行驶路面激励模型基础上,应用LQG最优控制对车辆非平稳行驶状态下的悬架进行了半主动控制研究,并与平稳行驶状态下的控制进行比较,分析了悬架性能指标的权重系数对悬架性能的影响。研究表明:车辆在加速行驶时,半主动悬架的车身加速度、车轮动载荷与无控制时相比有一定减小,悬架动挠度在非平稳态行驶状态下的控制响应与无控制时相比有明显的滞后。
Based on the building of nonstationary road surface excitation model,a study on the semi-active suspension control under nonstationary running condition was conducted using LQG(Linear Quadratic Gaussian) optimal control,and the control results were compared with those under stationary running condition.The effects of weighted coefficients on the performance index were analysed.The research shows that the car body acceleration and the dynamic tire load are decreased and the dynamic suspension deflection has an obvious delay,compared with those in the case of no control.
出处
《振动与冲击》
EI
CSCD
北大核心
2010年第6期189-193,共5页
Journal of Vibration and Shock
关键词
车辆
半主动悬架
非平稳行驶
控制
vehicle
semi-active suspension
nonstationary running
control
