| 电动助力转向系统LQG/LTR控制 |
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| 引用本文： | 胡爱军,施国标,林逸. 电动助力转向系统LQG/LTR控制[J]. 农业机械学报, 2009, 40(5): 12-15 |
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| 作者姓名： | 胡爱军 施国标 林逸 |
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| 作者单位： | 河南理工大学机械与动力工程学院,焦作,454000;北京理工大学机械与车辆工程学院,北京,100081 |
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| 基金项目： | 北京市科学技术委员会资助项目 |
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| 摘 要： | 建立了电动助力转向系统的数学模型和状态方程,针对电动助力转向系统建模过程中存在模型不确定性和传感器噪声等问题,利用LQG/LTR方法设计了补偿控制器,并进行了仿真计算.仿真结果表明,在加入LQG/LTR控制器后,系统能很好地抑制转向盘转矩波动和转矩测量过程中存在的传感器噪声,具有很好的跟随性和鲁棒性.
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| 关 键 词： | 电动助力转向 控制策略 LQG/LTR控制 |
LQG/for Electric Power Steering System |
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| Hu Aijun,Shi Guobiao,Lin Yi. LQG/for Electric Power Steering System[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(5): 12-15 |
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| Authors: | Hu Aijun Shi Guobiao Lin Yi |
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| Affiliation: | 1.School of Mechanical and Power Engineering;Henan Polytechnic University;Jiaozuo 454000;China2.School of Mechanical and Vehicular Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | A mathematical model and state equation of the electric power steering system were established.The compensatory controller was designed by utilizing linear quadratic Gaussian/ loop transfer recovery(LQG/LTR) theory aiming at getting rid of the uncertainties and noise of measurement for electric power steering system.The compensatory controller was simulated and the results show that torque undulation and noise of measurement are inhibited well,the system possesses good robustness with the LQG/LTR controller... |
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| Keywords: | Electric power steering Control strategy LQG/LTR control |
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