车辆半主动悬架自适应模糊控制

Self-adapted Fuzzy Control of Semi-active Vehicle Suspensions

给出了车辆半主动悬架自适应模糊控制方法 ,设计了自适应模糊控制器 ,将模糊系统辨识和模糊控制结合起来 ,对自适应模糊控制规则进行了修正 ,使自适应模糊控制的复杂性得以简化 ,提高了半主动悬架控制的实时性 ,从而达到最佳的控制效果。与被动悬架的对比分析表明 。

The design of a vehicle suspension system must meet the requirements of riding comfort and steering safety. However, the conventional passive suspension can ensure the best compromise only under the condition of one definite road and speed. In this paper, a self-adapted fuzzy control scheme was adopted to design the automotive semi-active suspension system. According to the fuzzy control principle and the adopted scheme, the fuzzy system identification was combined with the fuzzy control by applying 'soft feedback' in the fuzzy controller. The self-adapted fuzzy control rule was modified, which makes the control simpler and the semi-active suspension control real-time performance better. All above measures lead to an optimum solution to the contradiction between the riding comfort and steering safety. Compared with passive suspension, the self-adapted fuzzy control of semi-active suspension has better absorptivity to shocks.