汽车磁流变半主动悬架混合天棚控制仿真  

Hybrid Sky-Hook Control Simulation of Vehicle Semi-Active Suspension with Magnetorheological Damper

作　　者：寇发荣[1] 陈龙[1] 张传伟[1] 李爱民[1] KOU Fa-rong CHEN Long ZHANG Chuan-wei LI Ai-min(College of Mechanical Engineering, Xi＇an University of Science and Technology, Shaanxi Xi＇an 710054, china)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054

出　　处：《机械设计与制造》2017年第7期232-236,共5页Machinery Design & Manufacture

基　　金：国家自然科学基金(51275403);陕西省自然科学基金(2014JM7271);高等学校博士学科点专项科研基金(20126121120003)

摘　　要：设计开发有效的控制策略是实现半主动悬架功能的关键。在分别对天棚控制和地棚控制半主动悬架的工作域分析的基础上,兼顾天棚控制和地棚控制各自优点,提出并设计了一种混合天棚半主动悬架控制算法,建立了汽车半主动悬架系统动力学模型,进行了磁流变减振器的力学试验建模,开展了磁流变半主动悬架的混合天棚控制仿真分析。结果表明,相对于被动悬架,混合天棚控制半主动悬架的簧载质量加速度降低了9.4%,悬架动挠度降低了20%,轮胎动载荷降低了3.2%。混合天棚控制半主动悬架不仅能够降低簧载质量加速度,同时明显减小了悬架动挠度和轮胎动载荷,提高了汽车的平顺性和操纵稳定性。To design and develop efficient control strategy is the key to realize semi-active suspension function. Based on the analyses of the work domains for sky-hoak control and ground-hook control suspensions, taking into account the advantages of sky-hook control and ground-hook control, a kind of hybrid sky-hook control algorithm with semi-active suspension was put forward and designed. The dynamic models of vehicle semi-active suspension system were established. The test modeling for the developed magnetorheological damper were carried out. The simulation analyses for the hybrid sky-hook control suspension with magnetorheological damper were completed. The results show that under hybrid sky-hook control, sprung mass acceleration drops by 9.4%, suspension dynamic deflection drops by 20%, tire dynamic load drops by 3.2%.Hybrid sky- hook control suspension can obviously reduce sprung mass acceleration, suspension dynamic deflection and tire dynamic load, which greatly improves vehicle ride comfort and handling stability.

关 键 词：磁流变减振器 半主动悬架 试验建模 天棚控制 地棚控制 混合控制 

分 类 号：TH16[机械工程—机械制造及自动化] U463.33[机械工程—车辆工程]