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Skyhook Control Law Extension for Suspension with Nonlinear Spring Characteristics

Author

Listed:
  • Kamil Zając

    (ZF Steering Systems Poland Sp. z o. o. Technical Center, 43-346 Bielsko-Biała, Poland)

  • Janusz Kowal

    (Department of Process Control, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Jarosław Konieczny

    (Department of Process Control, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

Abstract

This work aimed to improve the vehicle body stability and the ride comfort of the tracked military vehicle crew. For this purpose, magnetorheological fluid dampers were used. This process has made the theoretical model of the tracked platform a semi-active suspension system. This modification allows for the application of different control laws to these systems. The usage of the continuous skyhook control law assumes the influence of three fictitious viscous dampers. Their force in this conceptual model is replicated by the magnetorheological dampers of the suspension in the real system. However, the continuous skyhook control law does not take into consideration the nonlinear stiffness characteristics. In this paper, the continuous skyhook control law has been appropriately modified. The modification takes into consideration the nonlinearity of the stiffness characteristics. Applying the modified continuous skyhook control law improves the stability of the vehicle body and the vehicle crew’s ride comfort. All these goals had to be introduced due to the modernization of the tracked military vehicle suspension by replacing the torsion bars with spiral spring packages with nonlinear characteristics.

Suggested Citation

  • Kamil Zając & Janusz Kowal & Jarosław Konieczny, 2022. "Skyhook Control Law Extension for Suspension with Nonlinear Spring Characteristics," Energies, MDPI, vol. 15(3), pages 1-21, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:754-:d:729337
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    References listed on IDEAS

    as
    1. Jarosław Konieczny & Marek Sibielak & Waldemar Rączka, 2020. "Active Vehicle Suspension with Anti-Roll System Based on Advanced Sliding Mode Controller," Energies, MDPI, vol. 13(21), pages 1-27, October.
    2. Teng Ma & Fengrong Bi & Xu Wang & Congfeng Tian & Jiewei Lin & Jie Wang & Gejun Pang, 2021. "Optimized Fuzzy Skyhook Control for Semi-Active Vehicle Suspension with New Inverse Model of Magnetorheological Fluid Damper," Energies, MDPI, vol. 14(6), pages 1-21, March.
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