| 汽车非线性主动悬架系统的分数阶模糊控制 |
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| 引用本文： | 高远,范健文,潘盛辉,李珊,孔峰. 汽车非线性主动悬架系统的分数阶模糊控制[J]. 中国机械工程, 2015, 26(10): 1403-1408 |
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| 作者姓名： | 高远 范健文 潘盛辉 李珊 孔峰 |
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| 作者单位： | 1.广西科技大学,柳州,5450062.广西科技大学鹿山学院,柳州,5456163.广西汽车零部件与整车技术重点实验室,柳州,545006 |
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| 基金项目： | 广西自然科学基金资助项目(2013GXNSFAA019351,2010GXNSFA013024);广西教育厅科研项目(201202ZD068,201204LX657);广西高等学校特色专业及课程一体化建设项目(GXTSZY234) |
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| 摘 要： | 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。
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| 关 键 词： | 车辆 非线性悬架 分数阶 模糊控制 |
Fractional-order Fuzzy Control Method for Vehicle Nonlinear Active Suspension |
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| Gao Yuan,Fan Jianwen,Pan Shenghui,Li Shan,Kong Feng. Fractional-order Fuzzy Control Method for Vehicle Nonlinear Active Suspension[J]. China Mechanical Engineering, 2015, 26(10): 1403-1408 |
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| Authors: | Gao Yuan Fan Jianwen Pan Shenghui Li Shan Kong Feng |
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| Affiliation: | 1.Guangxi University of Science and Technology,Liuzhou,Guangxi,5450062.Lushan College of Guangxi University of Science and Technology,Liuzhou,5456163.Guangxi Key Laboratory of Automobile Components and Vehicle Technology,Liuzhou,Guangxi,545006 |
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| Abstract: | A fractional-order fuzzy control method was presented for vehicle nonlinear active suspension. 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 comprehensive performance index function. Simulation results demonstrate that under the driving cycles with various grade roads and vehicle speeds, comparing with the traditional integral-order fuzzy control method, the presented method has better control performances including further reducing body acceleration, suspension travel and tyre deflection, and can improve the ride comfort and handling stability of vehicle effectively. |
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| Keywords: | vehicle nonlinear suspension fractional-order fuzzy control |
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