公开(公告)号：US10690198B2

公开(公告)日：2020-06-23

申请号：US15684238

申请日：2017-08-23

Applicant: GM Global Technology Operations LLC

Inventor： Dumitru Puiu ,  Arthur McGrew, Jr.

IPC: F16D43/21 ,  H02K7/10 ,  F16D7/08 ,  F16D7/02 ,  H02K7/108

Abstract: An electric motor includes a housing and a stator mounted to the housing. A rotor is rotatably supported relative to the stator and a drive shaft is connected to the rotor by a torque limiting clutch disposed within the housing. The electric motor with a torque limiting clutch eliminates high torque episodes due to slippery driving conditions. Also, a torque limiting clutch that features a ball-ramp device with two ramp angles performs the function of a two stage torsional vibration damper. An electric motor can have a specific torque signature that can excite certain vibration modes inside the transmission that can create noise, vibration and harshness (NVH) and durability concerns.