Editing Automatic transmission (section)

==Continuously variable transmission (CVT)==
{{Main|Continuously variable transmission}}
[[File:GearBoxRotRotVar.gif|thumb|Operating principle for a pulley-based CVT]]
A ''continuously variable transmission'' (CVT) can change seamlessly through a continuous (infinite) range of gear ratios, compared with other automatic transmissions that provide a limited number of gear ratios in fixed steps. The flexibility of a CVT with suitable control may allow the engine to operate at a constant angular velocity while the vehicle moves at varying speeds.

CVTs are used in [[car]]s, [[tractor]]s, [[Side-by-side (vehicle)|UTVs]], [[motor scooter]]s, [[snowmobile]]s, and [[earthmoving equipment]].

The most common type of CVT uses two pulleys connected by a [[Belt drive|belt]] or [[Chain drive|chain]], however, several other designs have also been used.
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