汽车座椅主动振动控制与仿真分析  

Active Control and System Simulation of Vertical Vibration in a Vehicle Seat

作　　者：刘会英[1] 盖玉先[1] 郑超[1] 

机构地区：[1]哈尔滨工业大学,威海264209

出　　处：《中国机械工程》2006年第12期1227-1230,共4页China Mechanical Engineering

摘　　要：利用基于滤波X最小均方值算法的前馈型自适应控制系统,对汽车座椅振动实施主动控制,以改善座椅的动态舒适性。建立了六自由度人体—座椅系统模型和主动振动控制系统模型,并在Simulink下进行仿真。结果表明,相对于目前汽车普遍采用的被动隔振系统,主动控制系统可以大大降低车身振动向人体的传递,提高了汽车座椅的动态舒适性。An adaptive controller which contains a filtered-x least mean squares algorithm （FXLMS） was applied to complete the active vibration control of a vehicle seat. A 6-degree-of-free dom（6-DOF） model of body seat system, which consisted of head, trunk, legs, buttocks, cush ion, seat and the car body, and a model of active vibration controller （AVC） was developed, which was implemented in the Simulink for simulation. The simulation results indicate the vibration acceleration are smaller than 1/3 one without the control, that is, the AVC system is of a better performance in the minimizing of undesired vibration in vehicle seat comparing with passive vibration isolating system which is widely in use now, and improves the sitting comfort better.

关 键 词：汽车座椅 主动振动控制 自适应控制 滤波X最小均方值算法 

分 类 号：U461.1[机械工程—车辆工程]