An exemplary differential apparatus for a vehicle includes: a compound planetary gear set and a planet carrier. In particular, the compound planetary gear set is formed as a combination of first and second planetary gear sets, the first planetary gear set is formed as a single pinion planetary gear set having a first sun gear and a plurality of first pinion gears, and the second planetary gear set is formed as a double pinion planetary gear having a second sun gear disposed coaxially and in parallel with the first sun gear, the plurality of first pinion gears shared with the first planetary gear set, and a plurality of second pinion gears. The planet carrier has an exterior circumference connected to an external gear and is connected to first and second pinion shafts that rotatably support the first and second pinion gears of the second planetary gear set.

Methods and systems for an epicyclic gear mechanism that includes a primary differential assembly to selectively drive the fore secondary differential assembly and the aft secondary differential assembly. The fore secondary differential assembly selectively drives one or more fore interfaces (e.g., output gears), whereas the aft secondary differential assembly selectively drives one or more aft interfaces (e.g., output gears). Each of the primary differential assembly, the fore and aft secondary differential assemblies, and the interfaces rotate about a common central axis. The primary differential assembly drives the fore secondary differential assembly via a first sun gear, and drives the aft secondary differential assembly via a second sun gear, both of which rotate about the common central axis. Further, one or more actuators are to activate or deactivate in order to drive or be driven by a selected interface.

A drive unit having motor output shaft that is connected to a sun gear is connected to one or more planetary gears that are connected to a planetary gear housing. The housing is connected to planetary gear assembly pinion gear, which is connected to a ring gear. A first side of the ring gear is connected to a first clutch drum and the second side of the ring gear is connected to a second clutch drum. Connected to the first clutch drum is a first plurality of clutch plates interleafed with a second plurality of clutch plates connected to a first clutch can. The first clutch can is connected to a first shaft. Connected to the second clutch drum is a third plurality of clutch plates interleafed with a fourth plurality of clutch plates connected to a second clutch can. The second clutch can is connected to a second shaft.

An assembly set for transmission devices for motor vehicles. Each of the transmission devices has an input shaft which can be operatively connected to a drive device of the motor vehicle, as well as a first output shaft, and a second output shaft, and has a spur gear differential transmission designed as a planetary transmission, via which the input shaft and an intermediate shaft that is coupled or can be coupled to an electric machine arranged coaxially to the input shaft are coupled to the first output shaft and the second output shaft. The electric machine is coupled to the input shaft in a first shift position of a shift device and to the intermediate shaft in a second shift position of the shift device.

An assembly set for transmission devices for motor vehicles. Each of the transmission devices has an input shaft which can be operatively connected to a drive device of the motor vehicle, as well as a first output shaft, and a second output shaft, and has a spur gear differential transmission designed as a planetary transmission, via which the input shaft and an intermediate shaft that is coupled or can be coupled to an electric machine arranged coaxially to the input shaft are coupled to the first output shaft and the second output shaft. The electric machine is coupled to the input shaft in a first shift position of a shift device and to the intermediate shaft in a second shift position of the shift device.

A drive device for a vehicle axle, in particular a rear axle, of a two-track vehicle, wherein the vehicle axle includes an axle differential, which is connectable on the input side to a primary drive machine and is connectable on the output side via flanged shafts arranged on both sides to vehicle wheels of the vehicle axle, wherein an additional drive machine and a shiftable superimposed transmission are associated with the vehicle axle, which transmission is shiftable into a torque distribution gear step, in which a drive torque generated by the additional drive machine is generated, in dependence on the dimension and rotational direction of which a torque distribution on the two vehicle wheels is changeable.

A drive device includes a drive machine, such as an electric motor, gear reduction planetary gear sets, and a differential. One of the gear reduction planetary gear sets utilizes multi-step planetary gears. The differential is a spur gear differential. To reduce axial length, one of the gearwheels of each multi-step planetary gears axially overlaps with planetary gears of the spur gear differential.

A drive device includes a drive machine, such as an electric motor, gear reduction planetary gear sets, and a differential. One of the gear reduction planetary gear sets utilizes multi-step planetary gears. The differential is a spur gear differential. To reduce axial length, one of the gearwheels of each multi-step planetary gears axially overlaps with planetary gears of the spur gear differential.

A drive device for a vehicle axle, especially a rear axle, of a two-track vehicle, wherein the vehicle axle includes an axle differential, which can be connected at the input end to a primary drive machine and can be connected at the output end across flange shafts arranged on either side to vehicle wheels of the vehicle axle, wherein the vehicle axle is associated with an additional drive machine and a shiftable superimposing gear, which can be shifted to a torque distribution gear in which a drive torque is generated by the additional drive machine.

A vehicle differential apparatus including a pair of side gears arranged side by side along an axial line so as to rotate about the axial line, a set of pinion gears disposed on a radial outside of the side gears so that one pinion gear engages with one of side gears, and the other pinion gear engages with the other of the side gears the one pinion gear, and a housing accommodating the side gears and the pinion gears and including a substantially cylindrical circumferential wall and a side wall extended radially inward from an end of the circumferential wall. The housing includes a space formation portion forming a housing space accommodating the pinion gears so as to rotate integrally with the pinion gears, and the side wall is provided with an opening connecting the housing space and a space outside the housing.