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Vibration Suppression of Hub Motor-Air Suspension Vehicle

Author

Listed:
  • Hong Jiang

    (School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Chuqi Wu

    (School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Bo Chen

    (School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China)

Abstract

Aiming at the negative vibration effect caused by the increased unsprung mass of the hub motor-air suspension (HM-AS) vehicle and the unbalanced magnetic force (UMF) of the hub motor, a linear quadratic regulator (LQR) air suspension control strategy based on a genetic algorithm is proposed. Considering the coupling effect of road surface excitation and UMF, the model of the HM-AS vehicle is established. Then, according to optimal control theory and the genetic algorithm, the LQR controller is designed to suppress the vibration of the HM-AS vehicle, and the weight matrix of the LQR controller is optimized through the genetic algorithm. The simulation results show that the proposed LQR control strategy effectively improves the ride comfort and motor safety of the HM-AS vehicle.

Suggested Citation

  • Hong Jiang & Chuqi Wu & Bo Chen, 2022. "Vibration Suppression of Hub Motor-Air Suspension Vehicle," Energies, MDPI, vol. 15(11), pages 1-19, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:3916-:d:824265
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