Patent ID: 6126567
Filing Date: 2000-10-03
Classification: F16H

Abstract:
A continuously variable transmission for a motor vehicle having front and rear driving wheels, comprising:an input shaft;an output shaft;a traction drive variator including an input disc, output disc, and a roller driveably engaging the input disc and output disc at variable radial positions for steplessly changing the speed of the output disc in relation to the speed of the input disc;a first gear unit driveably connected to the input shaft and input disc, for driving the input disc at a faster speed than the speed of the input shaft;a friction element for controlling operation of the first gear unit; anda second planetary gear unit having a sun gear driveably connected to the input disc, a ring gear driveably connected to the output disc, a carrier driveably connected to the output shaft, and a set of planet pinions rotatably supported on the carrier and driveably engaged with the sun gear and ring gear.