US 11,913,527 B2
Gear unit for a vehicle and powertrain with such a gear unit
Thomas Kölbl, Ruderting (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed by ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed on Mar. 8, 2023, as Appl. No. 18/180,268.
Claims priority of application No. 10 2022 202 378.1 (DE), filed on Mar. 10, 2022.
Prior Publication US 2023/0287964 A1, Sep. 14, 2023
Int. Cl. F16H 3/66 (2006.01); B60K 1/00 (2006.01)
CPC F16H 3/66 (2013.01) [B60K 1/00 (2013.01); B60K 2001/001 (2013.01); F16H 2200/2007 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A gear unit for a powertrain of a vehicle, comprising:
an input shaft;
a first output shaft;
a second output shaft and an integral differential operatively arranged between the input shaft and the two output shafts;
wherein the integral differential comprises:
a first planetary gearset with a plurality of gearset elements; and
a second planetary gearset with a plurality of gearset elements which is operatively connected to the first planetary gearset,
wherein:
a first gearset element of the first planetary gearset is connected to the input shaft to be fixed with respect to rotation relative to it;
a second gearset element of the first planetary gearset is connected to the first output shaft to be fixed with respect to rotation relative to it;
a third gearset element of the first planetary gearset is connected to a first gearset element of the second planetary gearset to be fixed with respect to rotation relative to it;
a second gearset element of the second planetary gearset is connected to a stationary structural component to be fixed with respect to rotation relative to it; and
a third gearset element of the second planetary gearset is connected to the second output shaft to be fixed with respect to rotation relative to it;
a first output torque is at least indirectly transmittable to the first output shaft by the first planetary gearset;
a reaction torque of the first planetary gearset is convertible in the second planetary gearset such that a second output torque corresponding to the first output torque is transmittable to the second output shaft;
an actuation mechanism is operatively arranged between the first output shaft and second output shaft comprising:
at least a first friction partner;
a second friction partner at least indirectly connectable to the first friction partner in a frictional engagement, and
an actuation element formed to bring the first friction partner and the second friction partner into frictional contact with one another when actuated,
wherein the first friction partner and the second friction partner are configured to generate a frictionally engaging connection between the first output shaft and the second output shaft when the actuation mechanism is actuated,
wherein the third gearset element of the second planetary gearset is at least indirectly connected via an intermediate shaft and a flange to the second output shaft to be fixed with respect to rotation relative to it,
wherein the second friction partner is arranged at the intermediate shaft to be at least indirectly axially displaceable and so as to be fixed with respect to rotation relative to it,
wherein the actuation element of the actuation mechanism is guided at the flange.