US 12,463,500 B2
Damping ring for coaxial dual planetary single speed electrical drive module
Gregory Mordukhovich, Bloomfield Hills, MI (US)
Assigned to FCA US LLC, Auburn Hills, MI (US)
Filed by FCA US LLC, Auburn Hills, MI (US)
Filed on Jun. 27, 2023, as Appl. No. 18/341,812.
Prior Publication US 2025/0007352 A1, Jan. 2, 2025
Int. Cl. H02K 5/24 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01)
CPC H02K 5/24 (2013.01) [H02K 7/006 (2013.01); H02K 7/116 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric drive module that generates and transfers drive torque to a driveline of an electrified vehicle, the electric drive module comprising:
an electric drive gearbox assembly comprising:
a housing defining a first pocket, a second pocket and an annular channel, the annular channel formed intermediate an outer wall of the housing and a ring gear support inner wall;
a first planetary gear set disposed in the first pocket and having a first ring gear splined to the ring gear support inner wall;
a second planetary gear set disposed in the second pocket and having a second ring gear splined to the outer wall of the housing; and
a damper disposed in the annular channel, the damper having an inboard surface that engages a damper engaging surface on the ring gear support inner wall and an outboard surface that engages the housing outer wall, the damper mitigating noise vibration and harshness (NVH) of the electric drive gearbox assembly.