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Semi-Active Suspension Control Strategy Based on Negative Stiffness Characteristics

Author

Listed:
  • Yanlin Chen

    (Department of Automation, Xiamen University, Xiamen 361005, China
    These authors contributed equally to this work.)

  • Shaoping Shen

    (Department of Automation, Xiamen University, Xiamen 361005, China
    These authors contributed equally to this work.)

  • Zhijie Li

    (Department of Automation, Xiamen University, Xiamen 361005, China)

  • Zikun Hu

    (Department of Automation, Xiamen University, Xiamen 361005, China)

  • Zhibin Li

    (College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China)

Abstract

This paper investigates the potential of negative stiffness suspensions for enhanced vehicle vibration isolation. By analyzing and improving traditional control algorithms, we propose and experimentally validate novel skyhook, groundhook, and hybrid control strategies for suspensions with negative stiffness characteristics. We establish pavement models, incorporate negative stiffness into suspension modeling, and develop a performance evaluation index. Our research identifies shortcomings of classical semi-active control algorithms and introduces a new band selector to combine improved control methods. Simulation results demonstrate that the proposed semi-active suspension control strategy based on negative stiffness effectively reduces body vibration and enhances vehicle ride performance.

Suggested Citation

  • Yanlin Chen & Shaoping Shen & Zhijie Li & Zikun Hu & Zhibin Li, 2024. "Semi-Active Suspension Control Strategy Based on Negative Stiffness Characteristics," Mathematics, MDPI, vol. 12(21), pages 1-28, October.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:21:p:3346-:d:1506634
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