Provided herein is an electric axle assembly including a first motor-generator assembly, a second motor generator assembly, an axle housing, a first axle half shaft drivingly connected to the first motor-generator assembly and a second axle half shaft drivingly connected to the second motor-generator assembly. The first and second motor-generator assemblies each include a motor-generator and a housing and gear carrier portion. The axle housing includes a first axle tube portion, a second axle tube portion, a center portion, and an opening extending through the center portion of the axle housing, wherein the first axle tube portion and the second axle tube portion are disposed on axial opposite sides of the central portion. The first and second half shafts extended into the opening of the axle housing, and the first motor-generator assembly and the second motor-generator assembly are connected to the axle housing assembly.

The invention relates to a commercial vehicle, in particular a heavy-duty vehicle, comprising a plurality of wheel assemblies (10) mounted on a vehicle frame. At least one of the wheel assemblies (10) comprises an elongate wheel carrier (20), a wheel (42) at each of the longitudinal ends of the wheel carrier (20), a drive unit (28) for driving the wheels (42), and a transmission device (30, 34). According to the invention, the at least one wheel assembly (10) further comprises a clutch device (32) which selectively interrupts or establishes a power transmission connection between the drive unit (28) and the wheels (42), and a brake device (36) which is approved for the operation of the commercial vehicle on public roads up to speeds of more than 25 km/h

Provided herein is an electric axle assembly including a first motor-generator assembly, a second motor generator assembly, an axle housing, a first axle half shaft drivingly connected to the first motor-generator assembly and a second axle half shaft drivingly connected to the second motor-generator assembly. The first and second motor-generator assemblies each include a motor-generator and a housing and gear carrier portion. The axle housing includes a first axle tube portion, a second axle tube portion, a center portion, and an opening extending through the center portion of the axle housing, wherein the first axle tube portion and the second axle tube portion are disposed on axial opposite sides of the central portion. The first and second half shafts extended into the opening of the axle housing, and the first motor-generator assembly and the second motor-generator assembly are connected to the axle housing assembly.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles vet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles yet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

An axle device includes a power unit including an electric motor and a differential. A drive shaft transmits power distributed by the differential to a drive wheel. The drive shaft is supported by an axle pipe via a hub bearing. The right and left axle pipes are respectively fixed to right and left portions of the axle frame, and the power unit is fixed to the axle frame.

A limited oil displacement system is positioned within a tandem housing of a tandem of a work vehicle. The tandem includes a tandem oil where a chain assembly is at least partially submerged. The limited oil displacement system may include one or more oil displacement unit used for displacing the tandem oil. The oil displacement unit has an upper portion and a lower portion coupled to and positioned under the upper portion. A volume of the upper portion is larger than a volume of the lower portion such that when the tandem of the work vehicle pivots about a lateral axis, the oil displacement unit displaces the tandem oil more than when the tandem of the work vehicle remains horizontally.

An improved gear lift box with a reduced number of parts through integration of elements and increased durability, serviceability and versatility through reconfiguration of various elements and accessories.

An axle assembly having a countershaft transmission. The countershaft transmission may operatively connect an electric motor to a drive pinion. The countershaft transmission may have a first countershaft subassembly that is rotatable about a first countershaft axis and a second countershaft subassembly that is rotatable about a second countershaft axis.

An axle assembly having a countershaft transmission. A rotor shaft may extend through a drive pinion and may operatively connect an electric motor to a countershaft transmission. The countershaft transmission may have a first countershaft subassembly that is rotatable about a first countershaft axis and a second countershaft subassembly that is rotatable about a second countershaft axis.