A tire assembly according to the disclosure may include a wheel having a first outer circumferential surface and a second outer circumferential surface, and a tire mounted on the wheel and having a first portion that mates with the first outer circumferential surface of the wheel, and a second portion that is spaced away from the second outer circumferential surface of the wheel to form a cavity. Furthermore, the first portion may be a solid portion that extends from the first outer circumferential surface of the wheel to an outer circumferential surface of the tire.

An electric power take-off system for mounting to a truck body to complement an existing power-take-off system powered by an internal combustion engine. The system includes a motor, a battery for providing electrical power to the motor, a fluid reservoir, a pump for pumping fluid through at least one hose from the fluid reservoir to at least one truck function and for return of the fluid to the reservoir. The system also includes a system interlock rendering inoperable the electric power-take-off system when the internal combustion engine is in operation and a motor controller in communication with the motor for controlling the power output of the motor. The system also includes a charging unit for charging of the battery and a data management system operable to collect data.

A driver of an automatic guided vehicle includes a crown gear (turning gear) fixed to a bottom of a vehicle body, a support shaft penetrating a center of the crown gear and extending vertically from the vehicle body, a frame supported by the support shaft to be rotatable on a horizontal plane, a wheel axle rotatably and horizontally provided on the frame, and a wheel connected to the wheel axle. A first motor and a second motor, which are drive sources, and a first planetary gear mechanism and a second planetary gear mechanism are provided at both ends in an axial direction of the wheel axle, respectively. Each carrier of the first and second planetary gear mechanisms is connected to the wheel axle, and each ring gear of the first and second planetary gear mechanisms meshes with the crown gear.

A wheel drive apparatus of an automated guide vehicle (AGV) is provided, which includes: a bogie frame; drive frames including a pair of drive wheels installed so that power is transmitted through opposite side surfaces of the bogie frame, and first auxiliary wheels opposite to second auxiliary wheels, with a gap “b” outside of each of the opposite side surfaces of the bogie frame; rotation shaft portions pivotally coupled at shaft points of each of the drive frames and the bogie frame; and connection portions in which first connection arms are respectively formed in the drive frames, and second connection arms are respectively formed in the bogie frame, and the first and second connection arms are vertically connected as a slip rod so as to move up and down at a predetermined gap “a”, and thus which does not cause the drive wheel to float in the air even if any of the auxiliary wheels or any of the drive wheels of the AGV travelling along the floor contacts a depression, a barrier and a slope.

An assisted thrust system for a carriage provided with wheels that includes a base to which a first directional wheel and a second directional wheel are fixed that are connected to the base so as to be able to rotate around a respective axis perpendicular to the base; to the base a first drive wheel and a second drive wheel are further fixed that are rotated by at least one gearmotor unit, which drives the first drive wheel by a first magnetic coupling device and the second drive wheel by a second magnetic coupling device.

An electrified vehicle, comprising a chassis having a frame, a first tractive element, and a first suspension system coupled with the first tractive element and the chassis. The first suspension system may comprise a first knuckle coupled with the first tractive element, and a first strut-damper coupled with the first knuckle and the chassis, the first strut-damper extending between the chassis and the first knuckle. The first suspension system may also include a first control arm coupled with the first knuckle and the frame member, and a torsion bar coupled with the chassis at a first end of the torsion bar. The torsion bar may extend in a direction substantially parallel with the frame member, where the torsion bar may be configured to support a portion of a mass of the electrified vehicle in response to displacement of the first tractive element relative to the chassis.

An electrified vehicle includes a front subframe, a rear subframe, and a body that connects the front subframe to the rear subframe so that forces acting on the front subframe and the rear subframe are transmitted through the body. The vehicle also includes a housing coupled to an underside of the body between the front subframe and the rear subframe. An energy storage system is enclosed in the housing and includes a battery and a battery interface configured to electrically couple the battery to at least one component of the electrified vehicle.

A trailer for towing by a power vehicle is provided and generally includes a frame and a tandem wheel assembly. The frame forms an undercarriage chassis which the tandem wheel assembly is positioned there under. The undercarriage chassis includes a rear wheel assembly, a front wheel assembly, and an extension assembly moving the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis.

A vehicle drive system is provided and generally includes a hub assembly, a drive assembly and a clutch assembly. The hub assembly having wheel hub upon which a wheel assembly is secured. The drive assembly is configured to selectively transmit a motive force to cause the hub to turn. The drive assembly includes a motor with a rotatable motor output shaft, a transmission assembly connected to the motor and receiving in the rotatable motor output shaft into an input opening therein, and a driveshaft connected to an output from the transmission assembly. The clutch assembly connected to the hub assembly and engagebale to the driveshaft.

A trailer for towing a power vehicle is provided and generally includes a frame and a self propelled tandem wheel assembly. The frame includes an undercarriage chassis, and the self propelled tandem wheel assembly is positioned under the undercarriage chassis. The self propelled tandem wheel assembly includes a rear wheel assembly and a front wheel assembly, and the rear wheel assembly and the front wheel assembly are equally positioned to support the undercarriage chassis.