公开(公告)号：US20180312062A1

公开(公告)日：2018-11-01

申请号：US15960731

申请日：2018-04-24

Applicant: BorgWarner Inc.

Inventor： Mallikarjun RUDAGI ,  Abhinav JAIN ,  Sathya VAIDYANATHAN

IPC: B60K23/08 ,  F16H25/12 ,  B60K17/344 ,  F16D23/12 ,  F16H1/46

Abstract: An actuation system of a transfer case includes a face cam, a motor, a gear reduction assembly, and an intermediate rotating member. The face cam includes a first member and a second member, and rotation of the first member relative to the second annular causes the first member or the second annular member to displace axially relative to the other member for selective operation of a torque transfer mechanism of the torque transfer device. The gear reduction assembly includes a first planetary gear set that increases torque from the motor by a first ratio, and a second planetary gear set that increases torque from the first planetary gear set by a second ratio and is coaxial with the first planetary gear set and the motor. The intermediate rotating member is rotated by the gear reduction assembly and rotates the first annular member for selective operation of the torque transfer mechanism.