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A continuously variable transmission (CVT) is an automated transmission that can change through a continuous range of gear ratios, typically resulting in better fuel economy in gasoline applications. [1] This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps.
The result is the ability to sweep the transmission through the entire ratio range smoothly, while in motion, under load, or stopped. Two factors allow the NuVinci CVT to provide a continuously variable ratio range in a compact package: The first is the geometric configuration of the drive, which is based on differing contact ratio of a sphere.
Variomatic is the continuously variable transmission (CVT) of the Dutch car manufacturer DAF, originally developed by Hub van Doorne. [1] It is a stepless, fully- automatic transmission , consisting of a V-shaped drive-belt, and two pulleys , each of two cones, whose effective diameter can be changed so that the "V" belt runs nearer the spindle ...
The transmissions are manufactured for the company by Aisin, an automotive parts manufacturer that is part of the Toyota Group of companies. A CVT is a type of automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed ...
The transmission is monitored and regulated by Audi's "Dynamic Regulating Programme" (DRP), [2] which tracks the driver's inputs (from how the driver applies the throttle pedal), [2] driving conditions, and engine load - to compute the optimal gear ratio for fuel efficiency or maximum performance, as mandated by the user. [2]
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Continuously variable transmissions are an automotive transmission fitted in a vehicle, using a continuously variable drive ratio or variator device. The typical "automatic gearbox" is not usually considered to be a continuously-variable transmission, as it relies on shifting between discrete gear ratios.
The VTi transmission from a Saturn Vue. The torque converter fits in the large round area. The same VTi transmission from the opposite side. The VTi is a continuously variable transmission for automobiles. It is fully-automatic, electronically-controlled, and designed for transverse front-wheel-drive use.