Patent attributes
A differential power coupling for generating forward and reverse motions and allowing stopping of the rotation for a vehicle using a rotational power supply to power a variable speed transmission having first and second outputs. The power coupling uses a rotational outside gear with an outside face coupled to the first power supply, a rotational support body coupled to the second power supply and adapted to rotate axles of differential gears around a central axis, and at least one differential gear rotationally mounted on the axle attached to the rotational support body and coupled to the inside face. The differential gear is further coupled to the output shaft and adapted to create a fully variable rotation of the outputs shaft including forward, reverse and stopped rotation. A method is also described for controlling a rotational speed of an output shaft by converting an input rotation into a first and second rotation, differentiating the first rotation and the second rotation to achieve a third rotation; and transferring the third rotation to the output shaft as a function of the difference.
