ACTIVE SUSPENSION SYSTEM, VIBRATION DAMPER AND VIBRATION DAMPING COMPONENT

A vibration damping component, comprising a hydraulic cylinder and a hydraulic motor. The hydraulic oil cylinder comprises an oil storage cylinder and a working cylinder, wherein the working cylinder is internally provided with a first piston piece and is divided into an expansion cavity and a contraction cavity by means of the first piston piece; the expansion connects the oil storage cylinder by means of a first one-way oil discharge; the contraction connects the oil storage cylinder by means of a second one-way oil discharge; the oil storage cylinder is provided thereon with an oil outlet hole; an input end of the hydraulic motor is connected to the oil outlet hole; and an output end of the hydraulic motor is in communication respectively with the expansion by means of a first one-way oil return pipe and with the contraction by means of a second one-way oil return pipe.