Research on Reversing Impact Control Based on Parallel Large Inerter Suspension

This paper equates an electromechanical energy harvesting suspension to a parallel large inerter suspension. Simulation studies show that the parallel large inerter suspension at high frequencies causes reversing impact deteriorating the acceleration of the sprung mass and that semi-active modulation provides limited improvement in vibration performance. To solve the reversing impact while improving the suspension performance, a direct torque control (DTC) strategy that tracks the LQR optimal control force is proposed. The algorithm effectively solves the reversing impact problem caused by the inerter force and achieves energy recovery while tracking the LQR optimal control effect.