| 主动悬架平顺性和侧倾姿态综合控制策略 |
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| 引用本文： | 陈双,宗长富,张立军,尹刚.主动悬架平顺性和侧倾姿态综合控制策略[J].吉林大学学报(工学版),2011(Z2):59-64. |
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| 作者姓名： | 陈双 宗长富 张立军 尹刚 |
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| 作者单位： | 吉林大学汽车仿真与控制国家重点实验室;辽宁工业大学汽车与交通工程学院;重庆长安汽车股份有限公司汽车工程研究院 |
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| 基金项目： | 国家自然科学基金项目(51075176,50775096) |
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| 摘 要： | 针对汽车转向操作,首先设计了主动悬架平顺性和操纵稳定性的LQG控制方法,进而提出将LQG控制与模糊控制相结合的综合控制策略。建立九自由度的主动悬架系统整车模型,利用Matlab/Simulink软件分别对随机路面上汽车转向盘角阶跃输入和单正弦输入进行控制仿真,将综合控制策略主动悬架与LQG控制主动悬架和被动悬架仿真结果进行性能指标的对比分析。结果表明:本文提出的综合控制策略能够在LQG控制基础上,充分减小车身侧倾角,优化车身侧倾姿态,达到同时提高汽车平顺性和操纵稳定性的目的。
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| 关 键 词： | 车辆工程 主动悬架 LQG控制 模糊控制 综合控制 |
Research on integrated control strategy of ride and roll attitude via active suspension |
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| CHEN Shuang,ZONG Chang-fu,ZHANG Li-jun,YIN Gang.Research on integrated control strategy of ride and roll attitude via active suspension[J].Journal of Jilin University:Eng and Technol Ed,2011(Z2):59-64. |
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| Authors: | CHEN Shuang ZONG Chang-fu ZHANG Li-jun YIN Gang |
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| Affiliation: | 1.State Key Laboratory of Automobile Simulation and Control,Jilin University,Changchun 130022,China;2.College of Automotive and Transportation,Liaoning University of Technology,Jinzhou 121000,China;3.Institute of Automotive Engineering,Chang’an Automotive Holding Ltd.,Chongqing 401120,China) |
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| Abstract: | Aiming to vehicle steering maneuver,linear quadratic gauss control method of ride and roll attitude via active suspension is designed at first.Then an integrated control strategy which combines linear quadratic optimum control law with fuzzy control algorithm is put up.The reference model which is able to represent both ride and handling performance and have nine degrees of freedom is built up.By matlab/simulink simulation,integrated control strategy is assessed in an open-loop J-turn and Sine-steer driving scenario on a random-rough road.The performances of active suspension with integrated control are compared with the one of active suspension with linear quadratic gauss control and passive suspension.The results indicate that integrated control strategy combining linear quadratic gauss control and fuzzy control can decrease body roll angle more adequately and optimize body attitude on the basis of linear quadratic gauss control effect,which improve ride comfort and handling quality simultaneously. |
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| Keywords: | vehicle engineering active suspension linear quadratic gauss control fuzzy control integrated control |
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