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首页> 外文学位 >Centralized/local optimal output feedback control and robustness with application to vehicle active suspension.
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Centralized/local optimal output feedback control and robustness with application to vehicle active suspension.

机译：集中/局部最优输出反馈控制和鲁棒性，适用于车辆主动悬架。

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摘要

In many control applications, the controller structure can be pre-specified based on the feedback of centralized/local measurements. The optimization of centralized/local output feedback control, along with a numerical solution, is presented in this dissertation.; An industrial application of low-order centralized/local control, requiring no state estimation, is developed for vehicle active suspension. Manufactured vehicle parameters and a seven-degree-of-freedom full-car rigid body model are used to study the performance of this control. The vehicle model is simplified by eliminating lightly coupled modes. A rigid/flexible full-car model including an arbitrary number of vibratory and flexible modes is then developed.; A fourth-order active suspension control law is developed. This control law is then extended to the variable damper based semi-active suspension control. It is shown that only minor differences exist between the active and semi-active control for the vehicle ride control considered in this work.; A robustness and performance study of the centralized/local active suspension control is performed. The study is conducted using the matrix singular values approach and the multivariable sensitivity and complementary sensitivity functions. Both rigid and flexible full-car models are studied. It is shown that the fourth-order centralized/local active suspension control has satisfactory robustness characteristics. The matrix singular values approach proves to be a convenient and useful measure of performance and robustness.
机译：在许多控制应用中，可以基于集中式/本地测量的反馈来预先指定控制器的结构。提出了集中/局部输出反馈控制的优化方法，并给出了数值解。针对车辆主动悬架，开发了不需要状态估计的低阶集中/本地控制的工业应用。使用制造的车辆参数和七自由度的全车刚体模型来研究此控件的性能。通过消除轻耦合模式简化了车辆模型。然后，开发出包括任意数量的振动和柔性模式的刚性/柔性全车模型。建立了四阶主动悬架控制律。然后将该控制定律扩展到基于可变阻尼器的半主动悬架控制。结果表明，在这项工作中所考虑的车辆行驶控制的主动控制和半主动控制之间只有很小的差异。进行了集中/本地主动悬架控制的鲁棒性和性能研究。该研究使用矩阵奇异值方法以及多变量敏感度和互补敏感度函数进行。研究了刚性和柔性全车模型。结果表明，四阶集中/局部主动悬架控制具有令人满意的鲁棒性。矩阵奇异值方法被证明是一种方便而有用的性能和鲁棒性度量。

著录项

  • 作者

    Majeed, Kamal Naif.;

  • 作者单位

    University of Dayton.;

  • 授予单位 University of Dayton.;
  • 学科 Engineering Automotive.; Engineering System Science.; Applied Mechanics.
  • 学位 Ph.D.
  • 年度 1989
  • 页码 192 p.
  • 总页数 192
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自动化技术及设备;系统科学;应用力学;
  • 关键词

  • 入库时间 2022-08-17 11:50:37

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