[1]刘本学,蔺超云,郭沛东,等.基于Matlab的汽车线性最优控制主动悬架仿真研究[J].郑州大学学报(工学版),2016,37(05):72-76.[doi:10.13705/j.issn.1671-6833.2016.05.014]
　Liu Benxue,Lin Chaoyun,Guo Peidong,et al.Research of Simulation in the Linear Optimal Control Active Suspension of Vehicle Based on Matlab[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):72-76.[doi:10.13705/j.issn.1671-6833.2016.05.014]
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基于Matlab的汽车线性最优控制主动悬架仿真研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37卷
期数:
2016年05期
页码:
72-76
栏目:
出版日期:
2016-11-25

文章信息/Info

Title:
Research of Simulation in the Linear Optimal Control Active Suspension of Vehicle Based on Matlab
作者:
刘本学; 蔺超云; 郭沛东; 栗良玉
郑州大学机械工程学院,河南郑州,450001
Author(s):
Liu Benxue;  Lin Chaoyun;  Guo Peidong;  Li Liangyu
School of Mechanical Engineering, Zhengzhou University, Zhengzhou, Henan 450001
关键词:
汽车; 主动悬架; 线性最优控制; 平顺性
Keywords:
DOI:
10.13705/j.issn.1671-6833.2016.05.014
文献标志码:
A
摘要:
为了论证主动悬架在改善汽车行驶平顺性方面的优越性,在建立车辆1/4主动悬架模型和随机路面激励模型的基础上,采用线性最优控制作为主动悬架的控制策略,并设计线性最优控制器,利用MATLAB建立频域和时域的主动悬架仿真模型,在随机路面激励上对主动悬架分别在频域和时城内进行仿真并与被动悬架进行对比分析.结果表明:主动悬架能够有效降低车身加速度、轮胎动载荷和悬架动挠度,从而显著提高汽车的行驶平顺性和操纵稳定性.该设计的模型建立、最优设计和仿真分析为主动悬架的进一步研究及实际应用提供了有益参考.
Abstract:
In order to demonstrate the superiority of the active suspension in improving the ride comfort of the vehicle, on the basis of establishing the 1/4 active suspension model of the vehicle and the stochastic road excitation model, the linear optimal control is used as the control strategy of the active suspension, and the design The linear optimal controller is used to establish the active suspension simulation model in the frequency domain and time domain by using MATLAB, and the active suspension is simulated in the frequency domain and time domain respectively on the random road excitation and compared with the passive suspension. The results show that : The active suspension can effectively reduce the body acceleration, tire dynamic load and suspension deflection, thereby significantly improving the ride comfort and handling stability of the car. The model establishment, optimal design and simulation analysis of this design are the further development of the active suspension. It provides a useful reference for research and practical application.

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