摘要
针对主动悬架系统具有的非线性和不确定性,结合滑模控制的鲁棒性和模糊控制的优势,建立自适应模糊滑模控制策略。确定滑模切换面参数,应用切换控制方法和函数逼近技术改善滑模运动的动态品质,并利用模糊语言达到控制悬架振动的效果。以车辆1/4主动悬架动力学模型为对象进行仿真,结果显示,与传统的模糊控制相比,自适应模糊滑模控制能有效地改善路面变化对悬架的影响。
Adaptive fuzzy sliding mode control strategy was established ,combined with the advantage of robustness of sliding mode control and fuzzy control for nonlinear and uncertainties of active suspension system .According to theory of sliding mode control , the parameters of sliding mode switching surface were determined ,and dynamic quality of the sliding mode was improved by using switching control methods and functional approximation technique ,and fuzzy rules were used .All these were combined to improve the effect of controlling vibration .A quarter-car active suspension was taken as the object ,the simulatiom results showed that ,compared with the traditional fuzzy control ,adaptive fuzzy sliding mode control could improve the effect of the road variation availably .
出处
《机械工程与自动化》
2014年第2期144-146,共3页
Mechanical Engineering & Automation
关键词
主动悬架
自适应
滑模控制
仿真
active suspension
adaptive
sliding mode control
simulation
