Continuously variable transmission for electric vehicles

An electric vehicle, comprising:

• an electric motor;
• and
• a continuously-variable transmission (CVT) for transmitting power from the electric motor to wheels of the electric vehicle, the CVT having:
• a gearbox having:
• a first planetary gear train having a first sun gear, first planet gears meshed with the first sun gear and rollingly supported by a first carrier, and a first ring gear meshed with the first planet gears,
• a second planetary gear train having a second sun gear, second planet gears meshed with the second sun gear and rollingly supported by a second carrier, and a second ring gear meshed with the second planet gears,
• a first rotating spool defined by one of the first sun gear and the second sun gear engaged together, the first carrier and the second carrier engaged together, and the first ring gear and the second ring gear engaged together,
• a second rotating spool defined by another one of the first sun gear and the second sun gear engaged together, the first carrier and the second carrier engaged together, and the first ring gear and the second ring gear engaged together,
• an input defined by a remaining one of the first sun gear, the first carrier, and the first ring gear, and
• an output defined by a remaining one of the second sun gear, the second carrier, and the second ring gear;
• a first brake operatively connected to the first rotating spool for selectively blocking rotation of the first rotating spool;
• a second brake operatively connected to the second rotating spool for selectively blocking rotation of the second rotating spool;
• and
• a transmission motor drivingly engaged to the first rotating spool or to the second rotating spool.