A drive arrangement for a vehicle, the drive arrangement comprising a rotatable interface arranged to be mounted to the vehicle, wherein the rotatable interface is rotatably coupled to a mounting arm to allow continuous rotation of the mounting arm in a clockwise and anti clockwise direction that is substantially perpendicular to the longitudinal and transverse axis of the vehicle; and a first electric motor having a stator and a rotor, wherein the stator is coupled to the mounting arm to allow the axis of the rotor to be substantially perpendicular to the rotational axis of the rotatable interface, wherein the rotor is arranged to be coupled to a wheel of the vehicle to allow the electric motor to provide drive torque to the wheel.

An axle in particular of a universal carrier frame, which includes an arm of the axle, a power drive unit, swivel drive units, swivel distribution systems, travel distribution systems. At one end of the arm of the axle, a front portal suspension of a front wheel is rotatably arranged. At the other end of the arm of the axle, a rear portal suspension of the rear wheel is rotatably arranged. The front portal suspension of the front wheel and the rear portal suspension of the rear wheel comprise an angular chain transmission comprising a drive shaft having a longitudinal axis, a driven shaft having a longitudinal axis, a link chain for connecting the drive shaft and the driven shaft, and a pulley angular system of the link chain to define the angle (a) between the longitudinal axis of the drive shaft and the longitudinal axis of the driven shaft.

An axle in particular of a universal carrier frame, which includes an arm of the axle, a power drive unit, swivel drive units, swivel distribution systems, travel distribution systems. At one end of the arm of the axle, a front portal suspension of a front wheel is rotatably arranged. At the other end of the arm of the axle, a rear portal suspension of the rear wheel is rotatably arranged. The front portal suspension of the front wheel and the rear portal suspension of the rear wheel comprise an angular chain transmission comprising a drive shaft having a longitudinal axis, a driven shaft having a longitudinal axis, a link chain for connecting the drive shaft and the driven shaft, and a pulley angular system of the link chain to define the angle (a) between the longitudinal axis of the drive shaft and the longitudinal axis of the driven shaft.

A mover includes a body, an axle, a drive wheel, a motor, a speed reducer, and a shaft coupling. The wheel is arranged rotatably around the axle. The reducer is attached to the axle to reduce and transmit rotational power of the motor and includes an output shaft aligned with a center axis of the axle. The coupling transmits the rotational power of the reducer to the wheel and includes a cylindrical portion having an annular shape when viewed along the center axis and housing the reducer at least partially inside. The cylindrical portion includes an input portion and an output portion at first and second ends, respectively, along the center axis. The cylindrical portion further includes an absorber between the input and output portions to absorb deviation and an angle of deviation between respective rotational center axes of the output shaft and the drive wheel.

A mover includes a body, an axle, a drive wheel, a motor, a speed reducer, and a shaft coupling. The wheel is arranged rotatably around the axle. The reducer is attached to the axle to reduce and transmit rotational power of the motor and includes an output shaft aligned with a center axis of the axle. The coupling transmits the rotational power of the reducer to the wheel and includes a cylindrical portion having an annular shape when viewed along the center axis and housing the reducer at least partially inside. The cylindrical portion includes an input portion and an output portion at first and second ends, respectively, along the center axis. The cylindrical portion further includes an absorber between the input and output portions to absorb deviation and an angle of deviation between respective rotational center axes of the output shaft and the drive wheel.

A lawn mower includes a pair of electric motors configured to drive respective driven wheels and a control assembly. The control assembly includes a controller configured to control operation of the pair of electric motors, a bracket, a pivot bar, and rotation assembly. The rotation assembly is configured to rotatably mount the pivot bar to the bracket such that the pivot bar is configured to rotate between a forward position, a neutral position, and a rear position about a first axis and between an operative position and a stopped position about a second axis. The control assembly also includes a magnet and a position sensor spaced apart from the magnet. The position sensor is configured to detect rotation of the pivot bar about the first axis. The lawn mower also includes a return-to-neutral assembly configured to bias the pivot bar toward the neutral position about the first axis.

A mounting system for a portal lift assembly of an off-road vehicle includes a housing having a rear wall, a front wall, and a side wall. The rear wall includes an opening to receive the end of one of the vehicle's axles, and the front wall includes an opening to allow an output shaft to extend outward from the housing. The rear wall also includes an integral mounting brackets effective to mount the box to an upper A-arm to the rear wall, and a lower A-arm to the rear wall.

A mounting system for a portal lift assembly of an off-road vehicle includes a housing having a rear wall, a front wall, and a side wall. The rear wall includes an opening to receive the end of one of the vehicle's axles, and the front wall includes an opening to allow an output shaft to extend outward from the housing. The rear wall also includes an integral mounting brackets effective to mount the box to an upper A-arm to the rear wall, and a lower A-arm to the rear wall.

An apparatus and methods are provided for a portal spindle assembly for a vehicle front suspension. The portal spindle assembly comprises a spindle portion that is rotatably coupled with upper and lower connecting arms. A leading-edge portion is rotatably coupled with a steering rod-end joint, such that moving the steering rod-end joint rotates the spindle assembly with respect to the upper and lower connecting arms. An inboard case and an outboard case support a pinion gear assembly that is meshed with an output gear assembly for communicating torque from a constant velocity joint to a front wheel coupled to the output gear assembly. The pinion gear assembly is aligned along a pinion axis disposed at an angle with respect to a hub axis of the output gear assembly. The angle facilitates a suspension geometry that provides a camber change of the front wheel that eliminates a change in track width.

A dual-mode active rear-wheel steering device, including: a steering motor, a main shaft, an intermediate gear, a transmission gear, a planetary gear coupling mechanism and a mode switching assembly. An output end of the steering motor is provided with a first input gear. An end of the main shaft drives a first rear wheel to rotate by a two-stage gear transmission system and a first rear-wheel motion conversion mechanism, and the other end of the main shaft drives a second rear wheel to rotate by the planetary gear coupling mechanism and a second rear-wheel motion conversion mechanism. The intermediate gear, the transmission gear and a sun gear of the planetary gear coupling mechanism are provided on the main shaft. The intermediate gear meshes with the first input gear.