A shift system related to an improved continuously variable transmission (CVT) may include a power output assembly, a power input assembly, a collar assembly, and a connecting assembly to connect the power output assembly and power input assembly. The shift system is advantageous because it employs only gears and hydraulics for the transmission of power, which can be used in any torque scenario, from low-torque to heavy-duty scenarios such as large passenger automobiles, large trucks and heavy-duty machinery. Furthermore, there is no need to use additional energy to keep the transmission tight enough to engage and to prevent any slipping, and the overall efficiency of power transmission would be increased.

A transmission includes a gear mechanism including a gear box, a drive shaft, and an output gear, wherein a bending movement converted into a rotational motion of the output gear is realized through a wobbled member upon rotation of the drive shaft. First and second gear wheels are connected to the output gear and each includes at least one idler pulley having a locking direction and a freewheeling direction. A wobbled plate, mounted on the drive shaft so as not to rotate independently, carries the wobbled member and is positioned to pivot within the wobbled member. The inclination angle of the wobbled plate relative to the wobbled plate rotation axis can be adjusted via control actuators, enabling the wobbled plate to tilt upon rotation of the drive shaft and thus creating a wobbled movement in the wobbled member via the bearing between the wobbled plate and the wobbled member.

A transmission includes a gear mechanism including a gear box, a drive shaft, and an output gear, wherein a bending movement converted into a rotational motion of the output gear is realized through a wobbled member upon rotation of the drive shaft. First and second gear wheels are connected to the output gear and each includes at least one idler pulley having a locking direction and a freewheeling direction. A wobbled plate, mounted on the drive shaft so as not to rotate independently, carries the wobbled member and is positioned to pivot within the wobbled member. The inclination angle of the wobbled plate relative to the wobbled plate rotation axis can be adjusted via control actuators, enabling the wobbled plate to tilt upon rotation of the drive shaft and thus creating a wobbled movement in the wobbled member via the bearing between the wobbled plate and the wobbled member.

A drive includes a transmission driven by an electric motor. A drive shaft of the transmission has multiple eccentric regions with differing widths in the axial direction, in which the high points thereof are offset relative to one another in the circumferential direction. The respective eccentric region is radially surrounded by a respective cam disk region, e.g., of a housing part of the transmission. Respective rollers are accommodated in respective recesses of a cage and arranged with a radial degree of freedom. The cage is rotationally fixed to the output shaft of the transmission. The output shaft along with the cage is rotatably mounted both relative to the cam disk regions and relative to the drive shaft. During operation, the respective rollers are made to roll and/or slide on the respective cam disk region by the respective eccentric region. The eccentric regions are arranged behind one another in the axial direction such that the dynamic imbalance is minimized and/or eliminated.

A drive includes a transmission driven by an electric motor. A drive shaft of the transmission has multiple eccentric regions with differing widths in the axial direction, in which the high points thereof are offset relative to one another in the circumferential direction. The respective eccentric region is radially surrounded by a respective cam disk region, e.g., of a housing part of the transmission. Respective rollers are accommodated in respective recesses of a cage and arranged with a radial degree of freedom. The cage is rotationally fixed to the output shaft of the transmission. The output shaft along with the cage is rotatably mounted both relative to the cam disk regions and relative to the drive shaft. During operation, the respective rollers are made to roll and/or slide on the respective cam disk region by the respective eccentric region. The eccentric regions are arranged behind one another in the axial direction such that the dynamic imbalance is minimized and/or eliminated.