CAJ | 학술논문

针对非线性主动悬架系统的控制问题，提出一种分数阶模糊控制方法。该方法采用分数阶微分信号作为模糊控制器输入，并根据悬架系统综合性能指标函数最小准则获得分数阶次。仿真结果表明：相比整数阶的模糊控制情形，即使车辆在不同车速和不同等级道路的行驶工况下，该分数阶模糊控制方法可以使得非线性悬架系统能够获得更优的控制效果，能进一步降低车身垂直振动加速度、动行程及轮胎形变，有效提高车辆的行驶平顺性和操纵稳定性。
침대비선성주동현가계통적공제문제，제출일충분수계모호공제방법。해방법채용분수계미분신호작위모호공제기수입，병근거현가계통종합성능지표함수최소준칙획득분수계차。방진결과표명：상비정수계적모호공제정형，즉사차량재불동차속화불동등급도로적행사공황하，해분수계모호공제방법가이사득비선성현가계통능구획득경우적공제효과，능진일보강저차신수직진동가속도、동행정급륜태형변，유효제고차량적행사평순성화조종은정성。
A fractional-order fuzzy control method was presented for vehicle nonlinear active sus-pension .This new scheme used a fractional-order differential signal as one of the control inputs ,and the fractional order was obtained based on the minimum criteria of the suspension system comprehen-sive performance index function .Simulation results demonstrate that under the driving cycles with va-rious grade roads and vehicle speeds ,comparing with the traditional integral-order fuzzy control meth-od ,the presented method has better control performances including further reducing body accelera-tion ,suspension travel and tyre deflection ,and can improve the ride comfort and handling stability of vehicle effectively .