US 11,938,810 B2
Systems for low friction transmission
Peter Tomsa, Clarkston, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Jul. 25, 2022, as Appl. No. 17/814,816.
Prior Publication US 2024/0025248 A1, Jan. 25, 2024
Int. Cl. B60K 17/16 (2006.01); B60K 17/12 (2006.01); B60K 17/22 (2006.01)
CPC B60K 17/12 (2013.01) [B60K 17/16 (2013.01); B60K 17/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmission system for a vehicle, comprising:
a first helical pinion gear having a helix angle coupled to a first shaft and configured to receive an input torque;
a second helical pinion gear having a first helix angle coupled to a second shaft and configured to receive the input torque, the second shaft disposed within the first shaft and rotatable within the first shaft; and
a differential assembly including a third helical gear having the first helix angle coupled to the first helical pinion gear, a fourth helical gear having the helix angle coupled to the second helical pinion gear, the third helical gear and the fourth helical gear coupled to a differential gear set to drive a first output shaft and a second output shaft associated with the vehicle.