An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.

A modular axle and motive wheel system comprises: a pair of opposed axle ends and attached axle hubs; a pair of inner motive wheels each comprising an outer surface and configured for radially extending rotatable disposition on the hubs; and a pair of inner electric hub motors each comprising an inner stator and an inner rotor, the inner stators configured for attachment to the axle hubs, the inner rotors configured for attachment to the outer surface of the inner motive wheels, the inner rotors configured for rotation of the inner motive wheels by and about the inner stators; the inner motive wheels configured for attachment of a pair of outer motive wheels each comprising an outer electric hub motor comprising an outer stator configured for selective attachment to the inner stator and an outer rotor configured for attachment to the outer motive wheel and rotation of the outer motive wheels.

A brake module (1) of a wheel module (2) has an anchor plate (20) adjacent to a wheel (10) and is indefinitely rotatable about the steering axis (L) with the wheel (10). A lifting unit (30) is fixed adjacent to the anchor plate (20) and fixed about the steering axis (L). A brake wheel (21) is arranged on the wheel shaft (11) and is rotatable about the wheel axis (R) with the wheel (10). At least one transfer element (22, 22) extends from the anchor plate (20) towards the brake wheel (21). The lifting unit (30) is configured to move the anchor plate (20) from a first state to a second state. In the first state, the elements (20, 30, 22, 22) are spaced apart without any contact. In the second state, the at least one transfer element (22, 22) abuts against the brake wheel (21) generating a brake force at the brake wheel (21).

An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.

A two-axis spherical wheel or ball-wheel is provided wherein hemispheres (or spherical caps) rotate independently about a transverse or spherical axis and rotate dependently about an axial or longitudinal axis. In this way, a ball-wheel supports a vehicle chassis and drives (e.g., translates or rotates) the vehicle in any direction. Systems of ball-wheels are also disclosed. Two, three, four, or more ball-wheels can be joined in a system to support, translate, and/or rotate a vehicle without requiring the vehicle to turn. The ball-wheels include protective features to prevent debris from entering a drive system. Protective features may include springs and/or dampers to absorb impact forces on the vehicle chassis. Orienting the ball-wheels about a center point of the vehicle chassis enhances support and control of the vehicle.

An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.

A reduction gear includes: a first bearing that is mounted on a supporting member; an output member that is supported by the first bearing and rotates about a first rotation axis; an internal gear that is coupled to the output member and rotates about the first rotation axis together with the output member; a second bearing that is mounted on the supporting member on an outer side relative to the first bearing in a radial direction; and a pinion gear that is supported by the second bearing, rotates about a second rotation axis different from the first rotation axis, and is engaged with the internal gear.

A suspension and traction system is described for a vehicle equipped with a frame and a propulsive element (92) by rolling on the ground. An electric actuator (M3) is used for determining a steering angle () of the propulsive element.

An omni-directional rotational drive mechanism and a moving body in which production and maintenance can be facilitated, while the size can be reduced, by making the number of components smaller. A rotating body provided for a wheel member rotatable about a ring-shaped shaft having a rotating shaft of the wheel member as its center. The rotating body is configured to rotate integrally with the wheel member about the rotating shaft. A pair of worms rotatable about the same shaft as the rotating shaft of the wheel member. A pair of worm wheels are provided for the wheel member so as to be rotatable by meshing with different worms, and capable of transmitting each of rotations to the rotating body. The rotating body is configured so as to rotate or stop with respect to the wheel member in accordance with the rotational direction and the rotational speed of the respective worms.

A wheel hub drive as a direct drive of a wheel of a vehicle having an electric motor preferably designed as a permanent-magnet synchronous motor (PMSM)external rotor motorwhich is substantially arranged in the region within the wheel, wherein a rotating part of a friction brake is frictionally, interlockingly, and/or integrally connected to the motor for braking. The rotating part is operatively connected to the rotor of the motor, directly or indirectly, from outside of the motor.