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<p>Inspired by engine mounting principles, the stator of the flywheel battery is independently suspended. The mechanical model of the electromagnetic bearing and the electromagnetic forces of the magnetic suspension rotor are modeled incorporating PD control. A 15-degree-of-freedom mechanical model for the vehicular flywheel battery is established via both the integrated and isolated methods. The system’s differential equations are derived using the energy method and Lagrange’s equations. Dynamic vehicle models accounting for climbing, acceleration, and road excitations are developed. The resulting governing equations are solved numerically within the MATLAB environment using the fourth-order Runge–Kutta method. The study investigates two driving conditions (constant speed and acceleration) under two road scenarios (continuous speed bumps and slope climbing). The effects of vehicle speed, speed bump height, and slope gradient on the vibrational behavior and response magnitudes of the levitated rotor are analyzed. Time-domain responses are transformed via fast Fourier transform to examine the rotor’s power spectral density characteristics.</p>

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Modeling and Simulation of a Vehicular Flywheel Battery and Vibration Suppression

  • 期刊论文

  • 发表日期：

    2026年5月22日

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  • Zhu Youfeng,
  • Xu Quancai,
  • Zhao Peizhuang,
  • Ban Peng

摘要

Inspired by engine mounting principles, the stator of the flywheel battery is independently suspended. The mechanical model of the electromagnetic bearing and the electromagnetic forces of the magnetic suspension rotor are modeled incorporating PD control. A 15-degree-of-freedom mechanical model for the vehicular flywheel battery is established via both the integrated and isolated methods. The system’s differential equations are derived using the energy method and Lagrange’s equations. Dynamic vehicle models accounting for climbing, acceleration, and road excitations are developed. The resulting governing equations are solved numerically within the MATLAB environment using the fourth-order Runge–Kutta method. The study investigates two driving conditions (constant speed and acceleration) under two road scenarios (continuous speed bumps and slope climbing). The effects of vehicle speed, speed bump height, and slope gradient on the vibrational behavior and response magnitudes of the levitated rotor are analyzed. Time-domain responses are transformed via fast Fourier transform to examine the rotor’s power spectral density characteristics.