Alternative technologies

CVT

Also called: continuously variable transmission A continuously variable transmission, or CVT, changes drive ratio continuously rather than stepping through a fixed set of gear ratios. Conventional CVTs use mechanical arrangements such as variable-diameter pulleys or other ratio-changing mechanisms. Some hybrid vehicles use electrically controlled power-split transmissions that manufacturers describe as e-CVTs, although their internal design can differ substantially from a belt CVT. Most battery-electric vehicles do not need a multi-ratio CVT because electric motors can operate across a wide speed range with a fixed reduction gear.