| 汽车半主动悬架的自适应LQG控制 |
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| 引用本文： | 方敏 王峻. 汽车半主动悬架的自适应LQG控制[J]. 汽车工程, 1997, 19(4): 200-205 |
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| 作者姓名： | 方敏 王峻 |
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| 基金项目： | 安徽省自然科学基金，清华大学安全与节能国家重点实验室 |
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| 摘 要： | 本文根据汽车半主动悬轲的基本结构，通过力学分析建立了其数学模型，为了克服实际的悬架控制系统动态行的不确定性，采用了自适应ＬＱＧ控制策略。
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| 关 键 词： | 半主动悬架 参数辨识 自适应控制系统 汽车 |
Adaptive LQG Control for Automotive Semi-active Suspension |
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| Abstract: | In this paper, the mathematical model of the automotive semi-active suspensions is established based on the mechanical analysis. The adaptive LQG control strategy is adopted to overcome the uncertainties of the dynamic behavior of the practical suspension system. The recursive identification of the model parameters, the Kalman filter and the linear quadratic performance index, which is composed of the vertical acceleration of the body and the control signal, are used to implement the stochastic optimal control in an adaptive way. The simulation results show that the control scheme can effectively improve the ride comfort. |
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| Keywords: | Semi-active suspension Parameter identification Adaptive control system |
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