A ride-on vehicle, such as for a child, includes a vehicle body and one or more wheels that support the vehicle body relative to a surface. At least one of the wheels includes a hub motor arrangement that provides a drive torque for propelling the vehicle. The hub motor arrangement includes a housing defining an interior space. An axle or other mounting element(s) define an axis of rotation of the housing. Preferably, the axle or other mounting element(s) do not pass completely through the housing. A motor drives the housing through a transmission. Preferably, the motor is a standard, compact motor that is positioned on the axis of rotation and can be laterally offset from a central plane of the housing. In some embodiments, a traction element is carried directly by the housing.

Systems and methods for a lockable electric axle are provided. The electric axle includes a first electric machine coupled to a first drive wheel via a first gear set. The electric axle further includes a second electric machine coupled to a second drive wheel via a second gear set, and a locking clutch designed to selectively lock the rotation of a first rotor shaft and a second rotor shaft in the first and second electric machines, respectively.

A rotary actuator is provided which includes a prime mover including a rotor and a stator; a front-end star compound gear equipped with a first pinion, a first plurality of star gears arrayed concentrically around said first pinion, a first clutch, a first clutch shift motor, an output shaft, and first, second and third gears, wherein said third gear is attached to said output shaft; a back-end star compound gear; and a wheel interface including a principal bearing and a brake disk. The first pinion drives said the clutch. The first clutch shift motor shifts the first clutch between a first position in which the first clutch engages the first gear, and a second position in which the first clutch engages the second gear. When the first clutch engages the first gear, the first gear drives the first plurality of star gears. When the first clutch engages the first gear, the first plurality of star gears drive the third gear, or the first clutch engages the third gear to drive the output shaft directly.

A circuit budgets torque among independent field-oriented motor control circuits. A desired vehicle yaw turning moment is received from an operator control input. The circuit determines a positive or negative torque target for each electrically powered drive wheel and transmits it to an adaptive field-oriented motor control circuit which provides voltage magnitude and voltage frequency to a poly-phase synchronous alternating current electric motor. When wheel loading, limited traction, or stability prevents any motor from attaining the torque target, that data is returned to the budgeting circuit and torque budget is adjusted for all adaptive field-oriented motor control circuits. Varying numbers of powered wheels are assigned torque depending on vehicle dynamics. Performance of the vehicle can be adapted to driver capabilities. A vehicle may serve as a driving simulator for diverse vehicles.

To provide a vehicle body structure for an autonomously traveling vehicle that is distinguished for maintainability. A vehicle body structure (1) for an autonomously traveling vehicle that travels on wheels (3) provided on a chassis (2) includes side frames (4R), (4L) that extend in a chassis longitudinal direction on both sides of the chassis with respect to a chassis width direction, first drive units (20) in each of which a drive motor (5) that is for driving the wheel (3), a reduction gear (6), and a drive shaft (7) that drives the wheel (3) are integrally configured, and second drive units (30) which each rotatably hold a drive shaft (7) that drives the wheel (3). The vehicle body structure (1) is characterized in that the first drive units (20) and the second drive units (30) are each provided so as to be integrally mountable in and dismountable from the same side frames.

A powertrain, such as a vehicular electric powertrain, includes a cycloidal speed reducer configured to reduce a speed of an output of a traction motor. The cycloidal speed reducer includes an input member configured to couple with the output of the traction motor. A cycloidal disc has a main body made of a first material and defining a plurality of circumferentially-arranged holes extending through the body. The cycloidal disc has a plurality of inserts each extending through one of the holes. The inserts are made of a second material. A plurality of circumferentially-arranged pins are each disposed in one of the holes and contacting one of the inserts. The inserts provide reinforcement in contact areas between the disc and the pins.

A drive unit having a downsized brake device for applying a braking force to a drive wheel is provided. The drive unit comprises: a first brake device that applies braking torque to a first rotary member situated closer to a first motor than a first speed reducing device in a first torque transmitting route between the first motor and a first drive shaft; and a second brake device that applies braking torque to a second rotary member situated closer to a second motor than a second speed reducing device in a second torque transmitting route between the second motor and a second drive shaft.

Systems, methods, and devices for a vehicle windshield are disclosed herein. A vehicle includes a vehicle body comprising a front, a first side, and a second side, wherein the first side and the second side are opposite one another on the vehicle body. The vehicle comprises a cabin located within the body of the vehicle, wherein the cabin comprises an interior that is configured to accommodate at least one person. The vehicle comprises at least one door that provides ingress and egress to the interior of the cabin of the vehicle. The vehicle comprises a windshield that provides a visual line of sight out of the cabin for a user located within the interior of the cabin, and wherein the windshield extends across the front and at least partially on to at least one of the first side or the second side.

A large gear and a small gear are provided to an intermediate shaft of an in-wheel motor drive device, and a final output gear configured to mesh with the small gear of the intermediate shaft is provided to an output shaft. The output shaft is supported by bearings on in-board and out-board sides, respectively, and the large gear of the intermediate shaft is arranged between the bearing configured to support the output shaft on the in-board side and the final output gear of the output shaft. The bearing and the large gear are arranged so that, when viewed from the axial direction, a tooth top circle of the large gear of the intermediate shaft and a radially outer circle of the bearing configured to support the output shaft on the in-board side have an intersection point.

A drill rig with a steering system may include a substructure having a wheelhouse, a drill floor arranged atop the substructure, a mast extending upwardly and above the drill floor, and a steering system arranged within the wheelhouse. The steering system may include a wheel assembly comprising an electric motor configured for driving rotational motion of a wheel, a deployment device configuring for deploying the wheel assembly to carry the drill rig, and a steering mechanism configured for selective engagement with the wheel assembly and rotating the wheel assembly.