Patent ID: 6053839
Filing Date: 2000-04-25
Classification: F16H

Abstract:
A multiple-speed transmission for a motor vehicle, comprising:an input;an output;a first gearset having a first sun gear driveably connected to the input, a first ring gear, a first carrier, a first planet pinion set rotatably supported on the first carrier and driveably engaged with the first sun gear and first ring gear;a second gearset having a second sun gear, a second ring gear, a second carrier driveably connected to the first carrier, a second planet pinion set rotatably supported on the second carrier and driveably engaged with the second sun gear and second ring gear;a third gearset having a third sun gear driveably connected to the second sun gear, a third ring gear driveably connected to the output, a third carrier driveably connected to the second ring gear, a third planet pinion set rotatably supported on the third carrier and driveably engaged with the third sun gear and third ring gear;a first clutch for alternately driveably connecting and disconnecting the first sun gear and the second ring gear;a second clutch for alternately driveably connecting and disconnecting the first ring gear and the second and third sun gears;a first brake for holding against rotation and releasing the third carrier and second ring gear;a second brake for holding against rotation and releasing the second and third sun gears; anda third brake for holding against rotation and releasing the first ring gear.