Optimization design and fractional order sliding mode control of HMDV controllable dynamic inertial suspension#br#

YANG Xiaofeng1, 2, WANG Wei1, 2, LI Yu1, LIU Changning1, 2, SHEN Yujie2, 3, LIU Yanling1, 2, ZHANG Tianyi1, 2

Journal of Vibration and Shock ›› 2025, Vol. 44 ›› Issue (1) : 70-81.

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Journal of Vibration and Shock ›› 2025, Vol. 44 ›› Issue (1) : 70-81.
VIBRATION THEORY AND INTERDISCIPLINARY RESEARCH

Optimization design and fractional order sliding mode control of HMDV controllable dynamic inertial suspension#br#

  • YANG Xiaofeng*1,2, WANG Wei1,2, LI Yu1, LIU Changning1,2, SHEN Yujie2,3, LIU Yanling1,2, ZHANG Tianyi1,2#br#
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Abstract

 Aiming at the problem that the negative vertical vibration effect caused by switched reluctance motor (HMDV) dead weight and motor air gap eccentricity seriously deteriorates vehicle ride comfort and operating stability, an optimal design method of HMDV controllable dynamic inertial suspension based on fractional order sliding mode control was proposed. Firstly, based on the unbalanced radial force generated by the air gap eccentricity of the hub-driven motor, the HMDV quarter-frame dynamic inertial suspension was established, and the excellent performance of the second-order hybrid-hook positive real network was proved theoretically. Then, the HMDV coordination control system based on fractional order sliding mode control theory was constructed by using the HMDV second-order hybrid-hook positive real network as the reference model, and the ride comfort simulation and analysis were carried out under random pavement. Finally, the HMDV quarter suspension bench test was carried out. The test results show that compared with HMDV traditional passive suspension, the root-mean-square value of body acceleration, root-mean value of suspension dynamic travel and root-mean value of tire dynamic load decrease by 7.72%, 30.64% and 11.54% respectively. This validates the excellent suppression performance of the proposed HMDV controllable inertial suspension against the adverse effects of vertical vibrations caused by the switched reluctance motor.

Key words

HMDV / dynamic inertial suspension / hybrid-hook / fractional order sliding mode

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YANG Xiaofeng1, 2, WANG Wei1, 2, LI Yu1, LIU Changning1, 2, SHEN Yujie2, 3, LIU Yanling1, 2, ZHANG Tianyi1, 2. Optimization design and fractional order sliding mode control of HMDV controllable dynamic inertial suspension#br#[J]. Journal of Vibration and Shock, 2025, 44(1): 70-81

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