| 基于磁流变液减振器的车辆悬挂半主动控制 |
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| 引用本文： | 李猛,唐伟.基于磁流变液减振器的车辆悬挂半主动控制[J].兵工自动化,2004,23(2):41-43. |
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| 作者姓名： | 李猛 唐伟 |
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| 作者单位： | 军械工程学院,火炮工程系,河北,石家庄,050003 |
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| 摘 要： | 磁流变液减振器,通过线圈电流改变磁场调节磁流变液在阻尼通道中的流动,实现对减振器阻尼力的控制.车辆悬挂系统由弹性元件、导向元件和减振器组成.基于磁流变液阻尼器的车辆悬挂半主动控制,采用二自由度1/4车体模型构建控制器模型.通过二次型最优控制LQR算法,根据极值原理导出最优控制律,以确定半主动减振器驱动器控制力.仿真表明,该控制器具有较好的稳定性和良好的减振效果.
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| 关 键 词： | 半主动控制 LQR算法 磁流变液减振器 车辆悬挂系统 磁流变液 半主动减振器 车辆悬挂系统 半主动控制 Damper Based Suspensions Vehicle 减振效果 稳定性 控制器模型 仿真 控制力 驱动器 最优控制律 极值原理 算法 二次型最优控制 车体模型 二自由度 |
| 文章编号： | 1006-1576(2004)02-0041-03 |
| 修稿时间： | 2003年3月21日 |
Semi-Active Control of Vehicle Suspensions Based on MRF Damper |
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| LI Meng,TANG Wei.Semi-Active Control of Vehicle Suspensions Based on MRF Damper[J].Ordnance Industry Automation,2004,23(2):41-43. |
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| Authors: | LI Meng TANG Wei |
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| Abstract: | MRF (magneticcurrent recharge fluid) damper changes magnetic field via coil current to adjust flow of magnetic current recharge fluid in damp channels, control of damp fore of damper is realized. Vehicle suspension system is composed of spring component, guides component and dampers. Controller model was structured with the 2DOF 1/4 vehicle in semi-active control of vehicle suspension based on MRG damper. By using quadric LQR algorithm, optimal control rule was educed. According to extremum principle, control force of driver on semi-active damper was confirmed. The result of simulation shows that the damper has better stability and vibration damping effect. |
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| Keywords: | Semi-active control LQR algorithm MRF Damper Vehicle suspension system |
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