US 12,264,728 B1
Gear load canceling electric drive unit architecture
Favian Zavala, Northville, MI (US); Peter Tomsa, Clarkston, MI (US); Chi Teck Lee, Novi, MI (US); and Christopher Michael Kaminski, Warren, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Sep. 16, 2024, as Appl. No. 18/886,263.
Int. Cl. F16H 37/08 (2006.01); B60K 1/00 (2006.01); B60K 17/04 (2006.01); B60K 17/16 (2006.01); F16H 57/02 (2012.01); F16H 57/021 (2012.01)
CPC F16H 37/0813 (2013.01) [B60K 1/00 (2013.01); B60K 17/043 (2013.01); B60K 17/165 (2013.01); F16H 57/021 (2013.01); B60K 2001/001 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02052 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric vehicle drive unit, comprising:
an electric motor generating a torque;
an input differential splitting the torque into a first torque created by a first side gear and a second torque created by a second side gear;
a first pinion gear shaft assembly receiving the first torque and having a first pinion gear, and a second pinion gear shaft assembly receiving the second torque and having a second pinion gear;
a first stage transfer gear assembly having a first transfer gear, a second transfer gear, a third transfer gear, and a fourth transfer gear;
a first stage speed reduction achieved by meshing the first pinion gear with the first transfer gear and the third transfer gear, and by meshing the second pinion gear with the second transfer gear and the fourth transfer gear; and
a second stage gear assembly engaged with the first stage transfer gear assembly, the second stage gear assembly having a first final drive gear and a second final drive gear.