| 车辆液压半主动悬架数学模型分析和仿真研究 |
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| 引用本文： | 王世明,李天石,贾鸿社.车辆液压半主动悬架数学模型分析和仿真研究[J].流体传动与控制,2004,2(3):23-26. |
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| 作者姓名： | 王世明 李天石 贾鸿社 |
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| 作者单位： | 1. 西安交通大学机电工程系,西安,710049
2. 一拖集团有限公司技术中心,洛阳,471039 |
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| 摘 要： | 该文建立并分析了车辆四分之一悬架的数学模型，根据系统参数时变的特点，对该系统进行了频域和时域的仿真，利用模糊控制方法对簧载质量的垂直加速度进行控制并与被动悬架进行了比较，结果表明：在阶跃和正弦二种激励信号激励下，半主动悬架簧载质量的垂直加速度均方根分别下降了35％，29％，结果证明了该控制方法的优越性及它对车辆行驶平顺性改善的可行性和有效性。
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| 关 键 词： | 汽车 数学模型 半丰动悬架 平顺性 仿真 液压系统 |
| 文章编号： | CN31-1921/TH(2004)03-0024-004 |
| 修稿时间： | 2004年2月9日 |
Research on Mathematical Model and Simulation of Hydraulic Semi-active System |
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| WANG Shi-ming.Research on Mathematical Model and Simulation of Hydraulic Semi-active System[J].Fluid Power Transmission & Control,2004,2(3):23-26. |
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| Authors: | WANG Shi-ming |
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| Affiliation: | WANG Shi-ming |
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| Abstract: | The quarter-coach suspension mathematical model of hydraulic semi-active is set up and analysis according to the characteristics of time-varying of parameters and time-delay of the suspension. Fuzzy logic control techniques is presented and used to perform control of suspension. The results of simulation of closed-loop excited by three typeical vibration signals showed that Fuzzy control strategy can reduce the value of mean spuare root of vertical acceleration of semi-active suspension system to be lower 35% , and 29% in compared with the no control is used. The results of simulation provided a simple, reliable and low investment foundation for improve the driving stability of automobile. |
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| Keywords: | mathematical model semi-active suspension driving stability |
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