Modeling and Simulation of Commercial Vehicle Active Seat Suspension

doi:10.3969/j.issn.1674-0696.2015.03.31

Abstract

Abstract: A half-car dynamic model was established based on the acquaintance and the analysis of the air suspension, the cab was taken into consideration in this new model. The optimal control method was applied to design the active seat suspension. Two dynamic simulation models of the passive seat suspension and the active seat suspension were set up by MATLAB/Simulink; the random road was taken as the input; the time domain and frequency domain results were compared. The simulation result shows that the active seat suspension can improve the vehicle seat performance and the study has provided the academic reference for the applications of the active seat suspension.

Key words: vehicle engineering, 7 freedom, active air suspension, optimal control

摘要： 建立一种将驾驶室考虑在内的七自由度1/2商用车主动空气座椅悬架模型，采用最优控制理论建立主动控制器，在考虑白噪声路面输入的情况下，运用MATLAB/Simulink模块进行主动空气座椅悬架的性能仿真分析，得到了座椅质心加速度、悬架动挠度等评价指标，分析了时域和频域的响应结果，并且与被动空气座椅悬架进行了比较。结果表明：主动空气座椅悬架能很好的改善汽车座椅的减震性能，提高驾驶员及乘客的乘坐舒适性。

关键词: 车辆工程, 七自由度, 主动空气座椅悬架, 最优控制

CLC Number:

U461.4

Pan Gongyu, Liu Yongtian. Modeling and Simulation of Commercial Vehicle Active Seat Suspension[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(3): 157-161.

潘公宇,刘永田. 商用车主动空气座椅悬架的建模与仿真研究[J]. 重庆交通大学学报（自然科学版）, 2015, 34(3): 157-161.

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