A gear unit for a powertrain of a motor vehicle includes a drive shaft, a driven shaft, first and second planetary gearsets and first and second shifting elements. The first shifting element drivingly connects the drive shaft to an input of the first planetary gearset, and the second shifting element drivingly connects the drive shaft to an input of the second planetary gearset. An output element of the second planetary gearset is connected to the input of the first planetary gearset to be fixed with respect to rotation relative to it, and an output of the first planetary gearset is at least indirectly drivingly connected to the driven shaft. A shared element is fixed with respect to relative rotation and, with an inner toothing, forms a ring gear of the first planetary gearset and, with an outer toothing, forms a sun gear of the second planetary gearset.

An axle assembly having a drop gear set and a countershaft transmission. The drop gear set may operatively connect a rotor of an electric motor to a countershaft. The countershaft transmission may operatively connect the countershaft to a drive pinion. The electric motor and the countershaft transmission may be positioned on opposite sides of a differential assembly.

An axle assembly having a countershaft transmission. The countershaft transmission may operatively connect a rotor shaft of an electric motor to a drive pinion that may be rotatable about a drive pinion axis. The electric motor and the countershaft transmission may be positioned on opposite sides of a differential assembly.

Various methods and systems are provided for a multi-speed electric axle assembly with three gear ratios. The multi-speed electric axle assembly includes one or more power supplies, one or more shafts operatively coupled to the one or more power supplies and a differential, and one or more Ravigneaux gear assemblies integrated with the one or more shafts. The one or more Ravigneaux gear assemblies of the multi-speed electric axle assembly providing the three gear ratios.

Systems for an electric drive axle of a vehicle are provided. In one example, an electric drive axle system includes a gear box including a plurality of gear ratios. The plurality of gear ratios includes a fixed center distance measured from a carrier to an axle on which a plurality of gears or a plurality of pinions is arranged. Each pinion of the plurality of pinions is differently sized, wherein all pinions except for a largest pinion include a pinion baffle. Each gear of the plurality of gears is differently sized, wherein all gears except for a largest gear include a gear baffle.

A gearbox for a self-propelled machine includes primary and secondary shafts, each having a respective gear train aligned with one another around the shaft. Each gear of the gear train of the primary shaft permanently meshes with a respective gear of the secondary shaft. A gearing mechanism includes a driving member meshing with a driven member for being coupled to/decoupled from the primary shaft by a clutch mechanism. At least one key is engaged selectively with a gear carried by the secondary shaft. The secondary shaft includes two half-shafts mounted freely rotatable relative to each other and aligned by a sleeve inside which one end of each half-shaft is received. The sleeve has at least one longitudinal guide path along which the key, constrained to rotate with the sleeve, is mounted to move axially, this key-holder sleeve being coupled to each of the half-shafts via a respective declutchable coupling.

An electric vehicle transmission (7) includes an input shaft (10), an output shaft (11), a first planetary gear set (P1), a second planetary gear set (P2), and a third planetary gear set (P3). The input shaft (10) is provided for coupling to an electric machine (6). A first shift element (A), a second shift element (B), and a third shift element (C) are provided at least functionally as well. Also disclosed is a drive system (4), a vehicle drive train (5), and an electric vehicle.

An axle assembly having a gear reduction unit that is configured to operatively connect an electric motor to a drive pinion. The gear reduction unit includes at least two gear sets. At least one clutch is engageable to provide a torque path between the electric motor and the drive pinion.

A first electric motor is coupled to a first rotating element of a first differential mechanism, and a second electric motor is coupled to a first rotating element of a second differential mechanism. A first rotating element coupling body, formed by coupling a second rotating element of the first differential mechanism and a second rotating element of the second differential mechanism with each other, is coupled to an output shaft. a second rotating element coupling body, formed by coupling a third rotating element of the first differential mechanism and a third rotating element of the second differential mechanism with each other, is coupled to a first connection/disconnection portion. A first rotating element of the first differential mechanism, the first rotating element coupling body, the second rotating element coupling body, a first rotating element of the second differential mechanism are aligned in this order on a collinear diagram.

Some embodiments are directed to a gearing assembly including a rotary input member, a rotary output member and a gearing arrangement between the input member and the output member selectively engageable to effect a driving engagement between the input member and the output member through at least a first torque connection having a first gear ratio and a second torque connection having a second gear ratio. One of the rotary input member and the rotary output member includes a first shaft and the first torque connection includes a first dog clutch including a dog hub having a hub set of teeth and a surrounding dog ring including a ring set of teeth. The hub and ring sets of teeth are radially projecting and mutually engageable. The dog hub is mounted on the first shaft so as to allow axial movement of the dog hub relative to the shaft.