An electromotive drive assembly comprises a housing arrangement with a first and second housing element between which an intermediate plate is arranged; a drive unit comprising a drive shaft which is rotatably drivable about a first axis of rotation; a transmission arrangement with an intermediate shaft which extends through an opening of the intermediate plate and is rotatably drivable by the drive shaft, and with a power split unit which is drivingly connected to the intermediate shaft and is rotatably supported about a third axis of rotation coaxial with the first axis of rotation by a first bearing in the intermediate plate and a second bearing in the second housing element; and a clutch arrangement by which the power path between the drive unit and the power split unit can be selectively connected and disconnected, wherein the opening comprises a clutch receptacle on which at least one element of the controllable clutch arrangement is axially supported.

The present disclosure discloses a dual-electric-motor driving system, wherein the dual-electric-motor driving system includes a first electric motor, a second electric motor, two sets of gear reduction mechanisms, a differential-lock mechanism and a parking mechanism; the first electric motor and the second electric motor are arranged coaxially, first-stage pinions of the two sets of gear reduction mechanisms are provided respectively on an output shaft of the first electric motor and an output shaft of the second electric motor, and the differential-lock mechanism is provided at tips of the output shaft of the first electric motor and the output shaft of the second electric motor; the differential-lock mechanism includes a movable fluted disc, a fixed fluted disc and a fixed armature.

A gearbox unit for a motor vehicle, wherein the motor vehicle has a first wheel axle and a second wheel axle, with the second wheel axle being composed of at least one first sub-axle and one second sub-axle. Provided here are a first connecting shaft, which is operatively connectible to the first sub-axle, a second connecting shaft, which is operatively connectible to the second sub-axle, as well as a coupling gearbox with a drive input shaft, which is operatively connectible to a drive assembly of the motor vehicle, and with a drive output shaft, which is operatively connectible to the first wheel axle, wherein, by way of the coupling gearbox, the drive input shaft is operatively connected to the first connecting shaft and the second connecting shaft in a torque-splitting manner.

A prosthetic wrist unit includes a drive motor, to be interposed between the distal end of an arm prosthesis and a prosthetic terminal device for positioning the terminal device at desired orientations. A reduction mechanism includes first and second cycloidal reduction stages, connected to each other, the first stage having a central wheel connected to the motor shaft, one or more satellite wheels rotatably placed on a planet carrier, and a fixed outer ring gear, the satellite wheels being in peripheral contact with the central wheel and the outer ring gear, the planet carrier being connected to the second stage. The central wheel, the satellite wheels and the outer ring gear have smooth mutually engaging surfaces, causing a rolling of the satellite wheels on the outer ring gear by friction forces generated by radial interference between the central wheel, the satellite wheels and the outer ring gear.

A driving apparatus for an electric vehicle includes a housing, a driving motor, and a planetary gear unit. The planetary gear unit includes a ring gear fixed to the housing and a plurality of planetary gears positioned radially inward from the ring gear. The ring gear includes a ring gear main body configured as a ring-shaped flat plate extending in a radial direction, and a ring gear connection portion extending from an outer peripheral surface of the ring gear main body in an axial direction and contacting the plurality of planetary gears.

A transmission assembly for an electric drive comprises a drive shaft, a reduction gearing rotatably drivable by the drive shaft, a power distribution unit drivingly connected to the reduction gearing and configured to transmit a rotational motion to two output parts, a parking lock unit having a parking ratchet wheel which is connected in a rotationally fixed manner to a torque-transmitting member in the power path between the drive shaft and the output parts, and having a controllable locking element which can be selectively engaged with the parking ratchet wheel; wherein the parking lock unit is arranged in a parking lock housing which is liquid-tightly sealed with respect to a transmission housing so that a first oil bath in the transmission housing is separated from a second oil bath in the parking lock housing.

An electromotive drive assembly comprises a housing arrangement with a first and second housing element between which an intermediate plate is arranged; a drive unit comprising a drive shaft which is rotatably drivable about a first axis of rotation; a transmission arrangement with an intermediate shaft which extends through an opening of the intermediate plate and is rotatably drivable by the drive shaft, and with a power split unit which is drivingly connected to the intermediate shaft and is rotatably supported about a third axis of rotation coaxial with the first axis of rotation by a first bearing in the intermediate plate and a second bearing in the second housing element; and a clutch arrangement by which the power path between the drive unit and the power split unit can be selectively connected and disconnected, wherein the opening comprises a clutch receptacle on which at least one element of the controllable clutch arrangement is axially supported.

An electric drive module (e-drive module) for an electric motor vehicle and chain driven electric-drive (e-drive) gearbox therefor is provided. The e-drive gearbox has first and second chain members operably coupling an output shaft of an electric motor to a shaft of a driven output member. A first drive gear is rotatable with the output shaft of the electric motor. A first driven gear is coupled to the first drive gear via the first chain member. A second driven gear is coupled to the first driven gear via a common shaft and co-rotatable with the first driven gear. A second drive gear is coupled to the second driven gear via the second chain member. The respective rotational axes of the first and second drive gears and the first and second driven gears are parallel to each other.

A continuously variable power-split transmission with at least four driving ranges, within which the gear ratio of the power-split transmission can be continuously varied by a variator. A first planetary gearset with a plurality of shafts can be connected via shifting elements with another planetary gearset that also has a plurality of shafts and can be connected with a transmission output shaft. The first planetary gearset comprises four shafts and can be connected, via a first shaft, with a transmission input shaft and a first shaft of the variator. Furthermore, the first planetary gearset is connected, via a second shaft, to a second shaft of the variator, and the first planetary gearset is coupled, via a third shaft, to halves of two shifting elements and, via a fourth shaft, the first planetary gearset is coupled to a shifting element half of a further shifting element.

A prosthetic elbow includes a fixed member structure and a powered gearbox mechanism housed in a housing structure for rotating the forearm portion to varying angular positions. The powered gearbox mechanism includes a motor attached to the housing structure, a planetary frictional drive connected to a motor shaft of the motor and the housing structure, and a strain wave gear set having an input driven by the planetary fictional drive and an output attached to the fixed member structure, where the powered gearbox mechanism is configured to convert an output of the motor into a rotation of the housing structure relative to the fixed member structure, thereby causing the rotation of the forearm portion to varying angular positions relative to the upper arm. The fixed member structure and the housing structure each are connected to one of a forearm portion and an upper arm portion and rotatable relative to one another about an axis of rotation of the forearm portion.