主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
Automobile Applied Technology

Automobile Applied Technology ›› 2024, Vol. 49 ›› Issue (15): 26-29,58.DOI: 10.16638/j.cnki.1671-7988.2024.015.005

• Design and Research • Previous Articles    

Research on Semi-Active Suspension Strategy Based on Fuzzy Logic and Skyhook Control

LIU Zhonghai1 , WANG Shengkun*1, GUAN Huaiguang2 , LI Xuepeng1 , LIN Shuai1   

  1. 1.CATARC (Tianjin) Automotive Engineering Research Institute Company Limited; 2.Tianjin Institute of Labour Security Technicians
  • Published:2024-08-12
  • Contact: WANG Shengkun

基于模糊逻辑与天棚控制的半主动悬架 策略研究

刘忠海 1，王圣坤*1，贯怀光 2，李雪鹏 1，林 帅 1   

  1. 1.中汽研（天津）汽车工程研究院有限公司； 2.天津市劳动保障技师学院
  • 通讯作者: 王圣坤
  • 作者简介:刘忠海（1983－），男，工程师，研究方向为汽车动力学，E-mail:liuzhonghai@catarc.ac.cn。 通信作者：王圣坤（1996－），男，硕士，工程师，研究方向为动力学及半主动悬架控制，E-mail:wangshengkun@catarc.ac.cn。
  • 基金资助:
    国家自然科学基金项目资助（U22A20246）。

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Abstract: In order to improve the vibration or instability caused by the traditional switching skyhook control, a semi-active suspension control strategy which combines the idea of skyhook and fuzzy control is proposed in this paper. Firstly, by taking the dynamic speed of the shock absorber and the mass speed of the spring load as the inputs of fuzzy control, the adaptive damping coefficient in the current state is solved by fuzzy rule operation; Then, input to the skyhook control to calculate the damping force of the current state, and then the dynamic performance of the vehicle is adjusted; Finally, the control strategy is simulated and verified by CarSim and Simulink software. The results show that, compared with passive suspension and skyhook control, the root mean square of vehicle vertical acceleration decreases by 50.08% and 6.41% respectively, which improves the vehicle comfort to a certain extent.

Key words: Skyhook control; Fuzzy control; Semi-active suspension system; Comfort

摘要： 为了改善传统开关式天棚控制在切换状态时可能引起的震荡或不稳定情况，文章提出 了一种融合天棚思想与模糊控制的半主动悬架控制策略。首先，通过将减振器动速度和簧载 质量速度作为模糊控制的输入，经模糊规则运算求解出当前状态下的自适应阻尼系数；然后， 输入至天棚控制中计算出当前状态的阻尼力，进而对车辆的动态性能进行调节；最后，使用 CarSim 及 Simulink 软件进行控制策略仿真验证。结果表明，较被动悬架及天棚控制，车辆质 心垂向加速度均方根值分别下降了 50.08%、6.41%，对车辆舒适性有一定程度上的提高。

关键词: 天棚控制；模糊控制；半主动悬架系统；舒适性