Power assisting assembly, booster, vehicle and working method of power assisting assembly

The invention discloses a power assisting assembly, a booster, a vehicle and a working method of the power assisting assembly. The power assisting assembly comprises a rod piece; the rod piece is elastically supported on the fixing piece; the rotating piece is rotatably arranged on the fixing piece, the rod piece is coupled to the rotating piece, and the rotating piece rotates to drive the rod piece to move axially and is used for assisting the axial movement of the rod piece; and the hollow motor is arranged on the rotating part, and the hollow motor drives the rotating part to rotate. According to the power assisting assembly, by arranging the hollow motor, the structural integration degree is high, the transmission efficiency is high, on the basis, the structure of the power assisting assembly is changed, the performance requirement of the power assisting assembly is still met while the structural integration degree is higher, and the cost is saved. 本申请公开一种助力组件、助力器、车辆和助力组件的工作方法。一种助力组件包括：杆件；固定件，所述杆件弹性支撑于所述固