The present invention relates to a drive unit in the form of a caravan mover (10) comprising a motor (12) (drive means) and a head (14) which are linked together by a gear mechanism (16). The head (14) provides a roller (15) which is rotatably mounted on a shaft. The roller (15) is arranged, in use, to be urged or pressed against the tread portion (surface) of a tyre. The drive unit is controlled by a control unit (ECU) which controls the movement of the driven roller (15) between the disengaged position and the engaged position and also controls the rotation (and direction) of the driven roller (15). The caravan mover (10) of the present invention includes an integral power supply such that the unit comprises a single integral system which is easily installed on the caravan and does not require the routing of cables from a remote power supply. The battery (30) comprises securement means in order to quickly and easily secure the battery (30) to the drive unit housing and, in particular, to the housing (20) of the motor (12). The securement of the battery (30) to the motor 6 also automatically and simultaneously aligns and connects terminals of the battery (30) to power receiving terminals of the motor (16). Such a quick and simply securement mechanism provides a battery (30) can be quickly and easily removed, for example, in order to be charged. Accordingly, the drive unit/caravan mover (10) (including the motor, roller, battery, control unit and mounting means) forms a single self-supporting component which is solely secured to the caravan/trailer at a single location by the mounting means.

Described is an electric telehandler (1) comprising: one or more traction apparatuses (3, 51, 6) equipped with a drive wheel (3); movement means comprising a plurality of hydraulic actuators, a hydraulic distributor (2) to actuate the actuators and a pump (21) for supplying the distributor (2); and an electric motor (4, 41, 42, 43, 44, 45, 46, 47, 48, 49) connected directly to the traction apparatus and/or to the pump (21) of the movement means.

A steering device, including: a steering knuckle rotatably holding a wheel; an electric motor and a speed reducer configured to decelerate rotation of the electric motor, the electric motor and the speed reducer being fixed to a suspension arm; and a joint through which the steering knuckle is supported by the suspension arm in a state in which a kingpin axis is allowed to incline with respect to the suspension arm, the joint coupling the steering knuckle and an output shaft of the speed reducer such that the steering knuckle pivots about the kingpin axis by an operation of the electric motor.

A drive unit includes: a rotary electric machine; a rotary electric machine case accommodating the rotary electric machine; an electric power conversion device electrically connected to the rotary electric machine and configured to convert electric power supplied to the rotary electric machine and electric power supplied from the rotary electric machine; and an output shaft extending out from the rotary electric machine case and configured to output power of the rotary electric machine. The electric power conversion device is arranged on one side of the rotary electric machine. The output shaft is arranged between the rotary electric machine and the electric power conversion device.

A vehicle includes a motor, an inverter, an inter-line short circuit, an operation circuit, and a harness. The motor is provided in a wheel. The inverter is configured to supply electric power to the motor. The inter-line short circuit is provided in the wheel and configured to cause the motor to be short-circuited when not in operation and couple the motor and the inverter when in operation. The operation circuit is provided in a vehicle body of the vehicle and configured to operate the inter-line short circuit. The harness extends between the wheel and the vehicle body. In the harness, at least one power supply line, which is configured to supply electric power to the motor through the inverter and the inter-line short circuit, and an operation line, which is configured to couple the inter-line short circuit and the operation circuit, are bundled.

An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.

The invention relates to a hydraulic device including: a stator and a rotor, in which the rotor can rotate relative to the stator about a first axis of rotation; and a shaft mounted on the rotor such as to rotate therewith. The shaft has a wheel carrier provided at a proximal end thereof and designed to receive a rim and a tire. The shaft includes a through-channel extending from the proximal end to an opposing distal end. The hydraulic device includes an air chamber formed at the distal end of the shaft and connected to the through-channel. The through-channel and air chamber are produced such as to allow a flow of air in order to control the pressure of a tire.

A powered axle for a work vehicle with a dual wheel arrangement includes an axle housing, an axle hub mounted to the axle housing, and an output hub having opposite axial ends supported by one or more wheel bearings for rotation about the axle hub along a rotation axis. An electric drive is disposed, at least in part, within the axle housing, and a hub gear set is disposed, at least in part, within the axle hub and configured to transmit power from the electric drive to the output hub for rotation of the dual wheel arrangement. A wheel brake disposed radially between the axle hub and the output hub and axially between the ends of the output hub is configured to selectively permit and arrest rotation of the output hub.

A drive system includes a first drive train and a second drive train coupled by a differential assembly. Each drive train include a motor, an output gear, and a clutch assembly that engages and disengages the output gear from respective halfshafts. The differential assembly is configured to couple the first and second halfshafts, and connect/disconnect the first output gear and the first halfshaft. The differential assembly includes, for example, side gears, a spider gearset, and an actuator for engaging and disengaging the differential casing from the first output gear. A control system is configured to actuate actuators of clutch assemblies and/or a differential assembly to achieve one or more drive modes for each drive axis. The control system determines the first drive mode, controls the clutch assemblies and differential assemblies, and controls one or more motors. The drive modes include, for example, torque vectoring, fully locked, single motor, and neutral.

A vehicle includes a control system, a sensing system that senses an environment of the vehicle, and a propulsion system, a braking system, and a steering system that are operated by the control system to navigate the vehicle according to the sensing system and without direct human control. The propulsion system and the braking system are operated by the control system to cooperatively decelerate the vehicle. The braking system includes an inboard friction brake that is associated with one or more wheels of the vehicle and does not form unsprung mass of the vehicle.