四自由度汽车磁流变半主动悬架最优控制研究

doi:10.16182/j.issn1004731x.joss.19-0036

系统仿真学报 ›› 2020, Vol. 32 ›› Issue (9): 1818-1824.doi: 10.16182/j.issn1004731x.joss.19-0036

• 仿真模型/系统置信度评估技术 • 上一篇下一篇

四自由度汽车磁流变半主动悬架最优控制研究

贾永枢, 缪阿海

浙江工贸职业技术学院,浙江温州 325003

收稿日期:2019-01-22 修回日期:2019-05-15 出版日期:2020-09-18 发布日期:2020-09-18
作者简介:贾永枢(1977-),男,浙江乐清,硕士,教授,研究方向为车辆磁流变减振器、车辆悬架振动控制。
基金资助:
浙江省科技厅研究项目(2015C31064)

Optimal Control Research on Vehicle Magnetorheological Semi-Active Suspension of Four Degrees of Freedom

Jia Yongshu, Miu Ahai

Zhejiang Industry & Trade Vocational College, Wenzhou 325003, China

Received:2019-01-22 Revised:2019-05-15 Online:2020-09-18 Published:2020-09-18

摘要/Abstract

摘要： 应用汽车行驶动力学理论,以1/2汽车悬架模型为研究对象,建立四自由度汽车磁流变半主动悬架动力学方程和空间状态方程,设计了半主动悬架线性二次型最优控制器及控制算法,提出了汽车振动速度分段式磁流变半主动悬架最优控制策略。在SIMULINK软件中建立悬架仿真模型,仿真分析磁流变半主动悬架最优控制效果,仿真结果表明,汽车磁流变半主动悬架应用最优控制算法和分段控制策略可以降低车身垂向振动加速度和车身俯仰角加速度,提高了悬架平顺性。

关键词: 半主动悬架, 磁流变减振器, 最优控制, 四自由度

Abstract: Based on system dynamics theory of vehicle, aiming at the model of 1/2 vehicle suspension, the vehicle magnetorheological semi-active suspension dynamic equation and space state equation with four degrees of freedom are established. A linear two times optimal controller and control algorithm for semi-active suspension are designed, and the control strategy based on magnetorheological damper of subdivision vibration velocity is proposed. Suspension simulation model is established to analyze the optimal control effect in SIMULINK. The results show that the magnetorheological semi-active suspension system based on the optimal control of the vehicle can reduce vehicle vertical vibration acceleration and vehicle pitch angle acceleration, and thus effectively improves the suspension performance.

Key words: semi-active suspension, magnetorheological damper, optimal control, four degrees of freedom

中图分类号:

U463.33

贾永枢, 缪阿海. 四自由度汽车磁流变半主动悬架最优控制研究[J]. 系统仿真学报, 2020, 32(9): 1818-1824.

Jia Yongshu, Miu Ahai. Optimal Control Research on Vehicle Magnetorheological Semi-Active Suspension of Four Degrees of Freedom[J]. Journal of System Simulation, 2020, 32(9): 1818-1824.

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四自由度汽车磁流变半主动悬架最优控制研究

Optimal Control Research on Vehicle Magnetorheological Semi-Active Suspension of Four Degrees of Freedom

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