MULTI-SPEED TRANSFER CASE

摘要

A transfer case (14) of a motor vehicle drivetrain includes a planetary gear set (80) including a ring gear (82) to receive input torque, and a pinion assembly (84) having pinion gears (100) in mesh with the ring gear and a carrier (102) to carry the pinion gears and transmit output torque. A sun gear (86) is in mesh with the pinion gears, is selectively connectable to the carrier and rotatable therewith in a two-wheel drive mode and in a four-wheel-drive high range mode, and is selectively fixable against rotational motion in a four-wheel drive low range mode.

主权项

1. A motor vehicle transfer case (14), comprising:
an input (20) to receive torque; an output (22) to transmit torque; and a planetary gear set (80) between the input and the output, and including:
a ring gear (82) connected to the input,a pinion assembly (84) connected to the output and including pinion gears (100) in mesh with the ring gear and a carrier (102) to carry the pinion gears, anda sun gear (86) in mesh with the pinion gears, selectively connectable with the carrier to rotate with the carrier in a two-wheel drive mode and in a four-wheel-drive high range mode, and selectively groundable against rotation in a four-wheel-drive low range mode.