Patent ID: 9688352
Date: 2017-06-27
CPC Classifications: B62M,F16H

Claim:
1. A hub comprising a substantially cylindrical, hollow hub member, which is mounted to rotate about its axis and accommodated in whose interior is a continuously variable ratio transmission system having an input which is mounted to rotate about the axis and an output connected to rotate with the hub member, the transmission system comprising a single epicyclic gearset including a sun gear in mesh with a plurality of planet gears mounted to rotate about respective planet shafts carried by a common carrier, which is mounted to rotate with the input about the axis, the planet gears being in mesh with an annulus gear, which is connected to rotate with the hub member, the annulus gear and the sun gear being connected to rotate with the rotors of first and second electric motor/generators, respectively, the electrical connections of the stators of the two motor/generators being connected by a controller arranged to control the transmission of power from one motor/generator to the other, the hub further including a one-way clutch, which includes a drive member, which is constituted by the common carrier, and a driven member, which is connected to rotate with the hub member, the one-way clutch being arranged to connect the hub member to rotate with the carrier as soon as the carrier rotates faster than the hub member.