| 基于区域极点配置的汽车主动悬架H2/H 控制 |
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| 引用本文： | 孙 涛,郑松林,张振东,甘屹. 基于区域极点配置的汽车主动悬架H2/H 控制[J]. 振动与冲击, 2010, 29(2): 136. DOI: |
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| 作者姓名： | 孙 涛 郑松林 张振东 甘屹 |
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| 作者单位： | (上海理工大学 机械工程学院 汽车工程研究所 上海 200093) |
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| 摘 要： | 利用混合H2/H 控制方法设计了某重载车辆悬架控制器。以此种方法设计出的控制器，通过H 控制指标保证被控对象约束输出传递函数的无穷范数低于适当γ值的同时，最小化一个给定的H2性能指标函数，较好的解决了悬架系统性能和系统鲁棒性之间的折衷优化控制问题，同时，通过将闭环极点配置在指定位置，保证了系统的动态性能，结果显示，通过将单一范数（H2或H ）控制方法改进为混合范数H2/H 控制方法，强化了每种范数各自的优势，系统综合性能品质得到了保证。
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| 关 键 词： | 混合H2/H 控制 主动悬架 频率加权函数 未建模动态不确定 |
| 收稿时间： | 2008-10-15 |
| 修稿时间： | 2009-04-21 |
Mixed H2/H controller design for active suspensions based on pole placement constraints |
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| SUN Tao,ZHENG Song-lin,Zhang Zhen-dong,Gan Yi. Mixed H2/H controller design for active suspensions based on pole placement constraints[J]. Journal of Vibration and Shock, 2010, 29(2): 136. DOI: |
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| Authors: | SUN Tao ZHENG Song-lin Zhang Zhen-dong Gan Yi |
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| Affiliation: | (1. School of Mechanical Eng., Univ. of Shanghai for Science and Technology., Shanghai, 200093, China) |
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| Abstract: | An investigation is made to the multiobjective suspension control problem for a heavy-duty vehicle based on mixed H2/H optimal control synthesis. The controller is designed in such a way that it minimizes a given H2 performance index, which keeps the maximum supported H perturbation below appropriate levels γ. The robustness and performance aspects of suspension system are proper to compromise; whist the dynamic performance is satisfied based on LMI region pole placement. In comparison with simulation results of H2 and H control synthesis, it is possible that system performance could be improved by combining both techniques into one mixed norm optimization method to exploit the strengths of each norm. |
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| Keywords: | Mixed H2/H control Active suspension Frequency weighting function Unmodelled dynamics uncertainty |
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