Abstract
Aiming at the problem of poor vertical vibration performance of electric vehicles, an integrated design scheme of electric vehicle suspension based on in-wheel vibration damping system is proposed, and the fuzziness between vehicle suspension and in-wheel vibration damping system is carried out for this scheme. control. Then, the LQR control method based on particle swarm optimization weight coefficient is adopted, and the LQR optimization controller is designed to comprehensively control the electric in-wheel vibration damping system and the vehicle suspension, and further optimize the vehicle ride comfort and electric wheel vibration performance. The simulation results show that the inversion control strategy based on the reference model can effectively suppress the vertical motion of the body, reduce the vertical acceleration of the body, and at the same time reduce the tire deformation to a certain extent, and improve the ride comfort and driving stability of the car.
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