主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (11): 72-77.DOI: 10.16638/j.cnki.1671-7988.2023.011.012

• 设计研究 • 上一篇    

CDC 减震器 SH-ADD 阻尼控制方法 研究及应用

张德军 1，陈 锐 2，吴宇通 2，张云清 2   

  1. 1.东风柳州汽车有限公司； 2.华中科技大学 机械科学与工程学院
  • 出版日期:2023-06-15 发布日期:2023-06-15
  • 通讯作者: 张德军
  • 作者简介:张德军（1979－），男，高级工程师，研究方向为汽车设计，E-mail:zhangdj@dflzm.com。
  • 基金资助:
    柳州市科技计划人才专项（柳科攻 2021CBA0101）。

Research and Application of CDC Damper SH-ADD Damping Control Method

ZHANG Dejun1 , CHEN Rui2 , WU Yutong2 , ZHANG Yunqing2   

  1. 1.Dongfeng Liuzhou Motor Company Limited; 2.School of Mechanical Science and Engineering, Huazhong University of Science and Technology
  • Online:2023-06-15 Published:2023-06-15
  • Contact: ZHANG Dejun

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摘要： 针对车辆在路面激励下的车身振动响应，文章研究连续阻尼控制（CDC）减振器阻尼 控制方法及其在改善整车平顺性上的应用。文章首先建立 1/4 车辆 2 自由度悬架动力学模型， 以此为对象研究，运用 CDC 减振器阻尼控制方法，包括天棚（SH）算法、加速度阻尼（ADD） 算法及 SH-ADD 混合控制算法。基于 MATLAB 对比分析三种控制算法下的簧上加速度响应， 最终选用 SH-ADD 控制算法作为应用对象。随后，为探究 SH-ADD 阻尼控制算法对整车振动 响应的抑制效果，文章搭建基于 ADAMS 的整车多体模型，并以该动力学模型为基础进行 ADAMS/Car-Simulink 联合仿真。最后，通过对比被动悬架与搭载 CDC 减振器的半主动悬架 在脉冲输入与 C 级路面输入两种工况下的车身垂向加速度响应，验证了所研究的 CDC 减振器 SH-ADD 阻尼控制算法对整车行驶平顺性有改善效果。

关键词: CDC 减振器；SH-ADD 阻尼控制方法；半主动悬架；车辆振动控制

Abstract: The article investigates the continuous damping control (CDC) method and its application to improve the smoothness of the vehicle under road excitation. The article firstly establishes a 1/4 vehicle 2-degree-of-freedom suspension dynamics model as the object to study the CDC damper damping control method, including the sky-hook (SH) algorithm, acceleration driven damper (ADD) algorithm, and SH-ADD hybrid control algorithm. The spring acceleration response under the three control algorithms is compared and analyzed based on MATLAB, and the SH-ADD control algorithm is finally selected as the application object. Then, to investigate the suppression effect of SH-ADD damping control algorithm on the vibration response of the whole vehicle, the paper builds an ADAMS-based multi-body model of the whole vehicle and conducts a joint ADAMS/Car-Simulink simulation based on this dynamics model. Finally, by comparing the body droop acceleration response of the passive suspension with the semi-active suspension equipped with CDC dampers under the two operating conditions of impulse input and C-level road input, it is verified that the SH-ADD damping control algorithm of CDC dampers studied in this paper has an improvement effect on the smoothness of the whole vehicle.

Key words: CDC damper; SH-ADD damping control method; Semi-active suspension; Vehicle vibration control