US 12,435,779 B1
Two-speed coaxial rolling differential with plus-step planet and spur gear stage with stepped ring gear for super duty truck applications
Benedikt Neubauer, Herzogenaurach (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Filed on Apr. 3, 2024, as Appl. No. 18/625,778.
Int. Cl. F16H 37/08 (2006.01); B60K 1/00 (2006.01); F16H 1/28 (2006.01)
CPC F16H 37/082 (2013.01) [B60K 2001/001 (2013.01); F16H 2001/2881 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/2007 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electric beam axle for a hybrid or electric vehicle, the electric beam axle comprising:
an electric motor;
a rolling differential; and
a shiftable reducer operatively coupled between the electric motor and the rolling differential;
wherein the rolling differential includes a compound planetary gearset and a spur gear stage, a first output of the compound planetary gear set connectable to a first vehicle wheel and a second output of the compound planetary gear set connectable to a second vehicle wheel via the spur gear stage;
wherein the compound planetary gearset comprises:
a sun gear coupled to an output of the shiftable reducer;
a plurality of stepped planet gears positioned radially outwards from the first sun gear with respect to an axis of rotation of the electric beam axle on a planet carrier, each of the plurality of stepped planet gears are configured to mesh with the sun gear; and
a ring gear positioned radially outwards of the plurality of stepped planet gears, wherein each of the plurality of stepped planet gears are coupled with the first ring gear via a secondary planet gear.