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.

A suspension system (20) is described for vehicle with a frame, comprising an element (R, 12) propulsive by rolling on the ground; two units (12a, 12b) adapted to impart a torque to the propulsive element that are controllable independently of one another, where the two units are movable relative to the propulsive element independently from one another and rigidly connectable to the frame at one same point (P). By moving one or each unit relative to the propulsive element the distance between the latter and said point is made to vary.

A powertrain system and an electric vehicle to reduce a structure size of the powertrain system. The powertrain system includes two subsystems. The two subsystems are disposed side by side in a first direction and are symmetrical to each other. Each of the subsystems includes a motor, a deceleration mechanism, and an output shaft. A rotation shaft of the motor is disposed in a second direction. The deceleration mechanism includes a cylindrical gear pair and a bevel gear pair. The cylindrical gear pair includes an active cylindrical gear and a driven cylindrical gear, and the active cylindrical gear is connected to the rotation shaft of the motor. The driven cylindrical gear is located on a side that is of the active cylindrical gear and that is away or distal from the other subsystem. The bevel gear pair includes an active bevel gear and a driven bevel gear.

A mobile elevating work platform includes a chassis and fixed wheels, caster wheels, and a driving and steering wheel secured to the chassis. A control implement coupled with the driving and steering wheel is configured to adjust a steering position of the driving and steering wheel. A drive motor is operable to drive the driving and steering wheel. A platform may be raisable and lowerable with a mast assembly. The control implement may be adjustable to accommodate operator physical characteristics.

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.

A lift-enabled motorized wheel assembly and material handling cart. A drive wheel is supported on an axel between a fixed leg and a floating leg. The axel passes through the fixed leg without interference, but is captured in the floating leg by a self-aligning bearing. The axle is driven by a drive motor that is bolted to the fixed leg through a right-angle gearbox. A vertical suspension unit provides compliance for drive wheel traction. A lifter sub-assembly alternately raises and lowers the drive wheel into and out of contact with the ground. The lift-enabled motorized wheel assembly is attached to the bottom of a cart frame, along with a plurality of caster wheels. The cart includes a tow-bar that is moveable between raised and lowered positions. When the tow-bar is lowered condition for towing, the drive wheel automatically lifts out of contact with the ground.

A mobile robot triangle chassis assembly is disclosed, which includes a housing, a top plate, an isolation plat, a bottom plate, a power package, multiple support beams and three sets of gear trains. The three sets of gear trains are equilaterally triangularly distributed, each of which includes a motor, a speed reducer, a support frame and an omnidirectional wheel. The mobile robot triangle chassis assembly has a double-layer structure, the three sets of gear trains are located at a lower layer of the double-layer structure, and the power package is located at an upper layer of the double-layer structure, so as to reduce an occupied area of the mobile robot triangle chassis assembly. In the mobile robot triangle chassis assembly, only the bottom of the omnidirectional wheel is located outside the bottom plate, so that components within the mobile robot triangle chassis assembly are protected.

A final drive for a motor vehicle. A drive assembly having a drive shaft, the drive shaft is coupled via a gear stage to an output shaft of the final drive. The drive shaft is coupled to the gear stage via an intermediate shaft that is arranged offset with respect to it. The intermediate shaft is present on a first side of a conceptual plane that incorporates an axis of rotation of the drive shaft, and a power electronics unit is electrically connected to the drive assembly via connection terminals arranged at its front end on a second side of the plane, which lies opposite to the first side.

The driving apparatus comprising a first motor, a first gear mechanism having a first input shaft and a first output shaft connected to the first motor, a second motor, and a second gear mechanism having a second input shaft and a second output shaft connected to the second motor. The first gear mechanism is configured such that the first input shaft and the first output shaft are in an intersecting or twisted position, and the second gear mechanism is configured such that the second input shaft and the second output shaft are in an intersecting or twisted position.

A hydrostatic transaxle includes: a casing that is provided with an openable and closable filter insertion port and is filled with hydraulic oil; a hydraulic continuously variable transmission that is arranged inside the casing; a filter holding member that includes a support base that is a hollow cylindrical portion and oil-tightly partitions an inside of a cylinder and an outside of the cylinder, and a filter connection port that is a hollow cylindrical portion extending from a peripheral side surface of the support base and communicating with the inside of the cylinder, the support base communicating the inside of the cylinder to the port, and arranged between the center section and the casing facing the port; and a filter body that is freely inserted to and removed from the casing via the filter insertion port.