摘要
为了简化半主动悬架的数学模型及其模糊控制的研究,比较了汽车悬架四自由度模型和二自由度模型的运动微分方程,并据此推导出模型简化需要满足的条件。在此基础上,建立了半主动悬架二自由度模型,制定了模糊控制规则,并通过Matlab软件进行了仿真计算。仿真结果表明,所提出的模糊控制方法能显著提高悬架的平顺性。
Aiming at simplifying the mathematical model of semi-active suspension and researching fuzzy control strategy, the mo- tion equations of the four-degree freedom model of vehicle＇s suspension were compared with those of the two-degree freedom mod- els, and the condition of model simplitfication was deduced. On this base, the two-degree freedom model of vehicle＇s semi-active suspension was established. Fuzzy control rules were proposed, and simulation was carried out, using Matlab. The simulation re- sults indicate that the proposed fuzzy control strategy is remarkable in improving the ride comfort characteristics of suspension.
出处
《机电工程》
CAS
2008年第11期97-100,共4页
Journal of Mechanical & Electrical Engineering
关键词
半主动悬架
数学模型
模糊控制
平顺性
semi-active suspension
mathematical model
fuzzy control
ride comfort
