A modular drive system may include a motor assembly that includes a motor housing with a motor subassembly bolt pattern. The modular drive system may include a brake assembly that includes a brake housing with a brake subassembly bolt pattern. The modular drive system may include a final drive assembly that includes a final drive flange with a final drive subassembly bolt pattern.

A disk brake apparatus of an in-wheel driving system may include: an in-wheel driving device having a rotor and stator, and positioned within a wheel; a first torque member installed on the stator, and configured to support one side portions of a pair of brake pads; a second torque member spaced apart from the first torque member, and configured to support the other side portions of the brake pads; and a caliper body having one side portion coupled to the first torque member and the other side portion coupled to the second torque member, and configured to press the brake pads toward a wheel disk.

Methods and systems for operating a driveline that includes two electric machines are described. In one example, one electric machine is operated in a generator mode and the other electric machine is operated in a motor mode so that electric power that is generated by the electric machine that is operated in the generator mode is consumed by the electric machine that is operated in the motor mode.

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.

An in-wheel motor drive device (1) is arranged inside a wheel (W) of a wheel (92). The in-wheel motor drive device (1) includes a motor rotating shaft that rotates the wheel, as well as a motor unit (21) including a motor casing (29) that houses the motor rotating shaft, and a plurality of cooling fins (41) provided protruding from an inner end surface (29e) in a vehicle width direction of the motor casing and extending along a vehicle front-rear direction. In a state in which an orientation in a front-rear direction of the wheel (92) is aligned with an orientation in the vehicle front-rear direction, a protruding tip position at a vehicle rear side (41b) of the cooling fin (41) is positioned more inwards in the vehicle width direction than a protruding tip position at a vehicle front side (41a) of the cooling fin (41).

A rolling device having a bearing housing accommodating a wheel axle carrying a wheel element, axle support members rotatably accommodated in the bearing housing and supporting the wheel axle, end portions of the wheel axle being connected to the axle support members in an eccentric position displaced from the rotational axis/4 line of the axle support members, a drive wheel connected to one of the axle support members for the axle support member to rotate following the rotation of the drive wheel, a first drive motor having a spindle engaged with the drive wheel to rotate the drive wheel and thereby the axle support member relative to the bearing housing, to displace the wheel element by eccentric movement between an extended position where at least a portion of the wheel element projects outside the bearing housing and a retracted position where the wheel element is located inside the bearing housing.

The present invention is a minimum size, maneuverable, comfortable, safe, and inexpensive compact vehicle, having a higher level of cornering/turning stability than the current state of the art. The inventive design may be applied to two-, three-, and four- (or more) wheeled vehicles. The invention may be utilized in the design of the main components of vehicles providing an increased stability during turning, even at high speeds, based on fixed and moveable chassis portions which swing in relation to one another and novel linking mechanisms connected with large and/or wide wheel portions.

Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.