| 宋刚,吴志刚,林家浩.车辆主动悬架设计的约束H∞控制方法[J].计算力学学报,2010,27(2):196~201 |
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码上扫一扫！ |
| 车辆主动悬架设计的约束H∞控制方法 |
| Constrained H∞ control method for active suspensions of vehicles |
| 投稿时间：2008-08-25 |
| DOI：10.7511/jslx20102004 |
| 中文关键词: 主动悬架 时域硬约束 H∞控制 输出反馈 线性矩阵不等式 |
| 英文关键词:active suspensions time-domain hard constraints H∞ control output feedback linear matrix inequalities |
| 基金项目:国家自然科学基金(10632030,10472023)资助项目. |
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| 中文摘要: |
| 针对线性离散时间系统,研究其时域硬约束下的H∞输出反馈控制问题。假定外界扰动能量有限,基于线性矩阵不等式处理方法,提出并证明了时域硬约束下H∞输出反馈控制器存在的充分条件,并应用于车辆主动悬架设计。四分之一车辆模型数值仿真结果表明,即使车辆模型参数存在不确定性,本文提出的控制器在提高车辆乘坐舒适性的同时,仍能很好地兼顾车辆的其他性能要求。 |
| 英文摘要: |
| The problem of H∞ output feedback control for linear time-discrete systems with time-domain hard constraints is considered. With the assumption of disturbance energy being bounded, a constrained H∞ output feedback control strategy is proposed based on linear matrix inequality technology and sufficient conditions for the existence of such a controller are derived. The proposed constrained H∞ control scheme is applied to active suspensions. Simulation results for a quarter car model show that whether the variations of the vehicle model parameters exist or not, the constrained H∞ controller can achieve a promising improvement on ride comfort, while keeping suspension strokes, dynamic tire loads and control forces within given bounds. |
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