| 基于LQG算法半主动悬挂系统动力特性建模与仿真 |
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| 引用本文： | 冯占宗,张进秋,陈守华,王洪涛.基于LQG算法半主动悬挂系统动力特性建模与仿真[J].车辆与动力技术,2008(1):12-16. |
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| 作者姓名： | 冯占宗 张进秋 陈守华 王洪涛 |
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| 作者单位： | 装甲兵工程学院,北京,100072 |
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| 摘 要： | 对某型履带车辆悬挂系统合理简化，建立了加速度激励下多输入-输出的整车主动悬挂系统动力学模型；按照研究半主动悬挂控制的一般步骤，应用线性二次高斯（Linear Quadratic Gaussian，LQG）理论，接合工程软件Matlab，设计了考虑数据采集系统受环境噪声影响的最优控制力和半主动控制力；仿真结果显示，车辆平顺性得到大幅度改善，验证了模型及控制策略的有效性．
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| 关 键 词： | LQG控制 履带车辆 半主动悬挂 动力特性 |
| 文章编号： | 1009-4687(2008)01-0012-05 |
| 修稿时间： | 2007年8月31日 |
Simulation on Dynamics Characteristic of Semi-active Suspension Systems Based on LQG |
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| FENG Zhan-zong,ZHANG Jing-qiu,CHEN Shou-hua,WANG Hong-tao.Simulation on Dynamics Characteristic of Semi-active Suspension Systems Based on LQG[J].Vehicle & Power Technology,2008(1):12-16. |
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| Authors: | FENG Zhan-zong ZHANG Jing-qiu CHEN Shou-hua WANG Hong-tao |
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| Affiliation: | (Academy of Armored Force Engineering, Beijing 100072) |
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| Abstract: | Taking a type of tracked vehicle as an example,simplified dynamics model of suspension system under acceleration excitation was built.An optimal control law,whose data processing system was exposed to noise background,was designed by means of the LQG(Linear Quadratic Gaussian) theorem and the software Mat lab.Applying isodynamic rules to design Magnetorhological fluid damper,semi-active control equation was deducted according to the optimal control.The results showed that ride-comfort of tracked vehicle can be improved obviously and the control law was effective. |
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| Keywords: | LQG control tracked vehicle semi-active suspension dynamics characteristic |
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