CONTINUOUSLY VARIABLE TRANSMISSION FOR ELECTRIC VEHICLES
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Jun 3, 2022
filing date -
Jun 4, 2021
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Abstract
A continuously-variable transmission (CVT) has: a gearbox having a first planetary gear train, a second planetary gear train, a first rotating spool defined by one of two sun gears, two ring gears, and two carriers of the first and second planetary gear train, a second rotating spool defined by another one of the two sun gears, the two ring gears, and the two carriers, 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; a second brake operatively connected to the second rotating spool; and a transmission motor drivingly engaged to the first rotating spool or to the second rotating spool.
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