US 12,253,153 B1
Differentials with face gears for electrical drive systems
Philip Kellogg, Macomb, MI (US); Tao Peng, Canton, MI (US); and Andreas Mayer, Clarkston, MI (US)
Assigned to BorgWarner Inc., Auburn Hills, MI (US)
Filed by BorgWarner Inc., Auburn Hills, MI (US)
Filed on Sep. 15, 2023, as Appl. No. 18/368,628.
Int. Cl. F16H 48/40 (2012.01); B60K 1/00 (2006.01); F16H 48/10 (2012.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01)
CPC F16H 48/40 (2013.01) [B60K 2001/001 (2013.01); F16H 2048/102 (2013.01); H02K 7/006 (2013.01); H02K 7/116 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electric drive system in a battery electric vehicle (BEV), comprising:
an output shaft, configured to couple with a drive wheel of the BEV, having a face gear at a distal end;
a differential, including a pinion gear cage receiving pinion gears rotatably connected to the pinion gear cage via gear pins; and
a housing that receives the differential having an outer surface that is configured to couple to a rotating electrical machine of the BEV, wherein the pinion gears engage the face gear and permit angular displacement of the output shaft relative to a second output shaft;
wherein the pinion gear cage includes a central hub, spokes, pinion gear slots and apertures on an outer surface of the pinion gear cage that receive the gear pins and rotatable secure the pinion gears relative to the pinion gear cage.