The present invention relates to an in-wheel motor driving apparatus for reducing weight, improving Hall sensor assembly performance, and reducing a defect rate. According to one embodiment of the present invention, the weight of an in-wheel motor can be reduced by separating a suspension housing and a shaft and applying different materials thereto. Furthermore, the ease of assembling a Hall sensor can be improved, and the defect rate can be reduced.

The present invention relates to an in-wheel motor. The in-wheel motor according to an embodiment of the present invention includes: a circular rim to which a tire is coupled by being wrapped around an outer ring thereof and a shaft is connected by passing through a center thereof; a motor assembly which is disposed in an inner portion of the rim and includes a stator connected to the shaft and a rotor disposed to be wrapped around the stator and configured to rotate; a cover coupled to cover one open side surface of the rim and configured to seal the inner portion of the rim; and a lead-out wire entry/exit portion waterproof structure configured to seal an entry/exit portion for a lead-out wire connected to supply power from outside of the in-wheel motor to the inner portion of the rim via a hollow portion of the shaft, wherein the lead-out wire entry/exit portion waterproof structure includes an elastic stopper, to which the lead-out wire is connected to pass through a center thereof and which is configured to be elastically contracted after being inserted into the hollow portion of the shaft in an axial direction and seal between the hollow portion of the shaft and the lead-out wire, and a stopper fixing body fastened to the shaft and configured to press the elastic stopper in the axial direction so that the elastic stopper is inserted and fixed inside the hollow portion of the shaft.

A vehicle includes a first axle having a first electric machine, a second axle having a second electric machine and a controller. The controller is programmed to, in a user-selected four-wheel drive mode, command a first torque to the first electric machine based on a driver-demanded torque and a speed of the second axle, and command a second torque to the second electric machine based on a comparison of the driver-demanded torque and the first torque and further based on a speed of the first axle.

A self-propelled platform for monitoring field crop phenotype is provided. The monitoring platform includes a traveling and steering mechanism, wheel track and ground clearance adjustment devices, damping devices, and a case. The traveling and steering mechanism includes wheel side motors, wheels, and torque motors. The wheels are connected to respective upright posts of the platform through respective rigid independent suspensions. Each upright post is of sleeve structure and includes an upper sleeve and a lower sleeve. A corresponding damping device is connected between the upper sleeve and the lower sleeve. The wheel track and ground clearance adjustment devices are configured for adjusting the height of the case and the tracks between the wheels. The lower ends of the wheel track and ground clearance adjustment devices are rotatably connected to respective upright posts, and the upper ends are rotatably connected to the case.

A dual-rotor in-wheel motor based on an axial magnetic field and a control method thereof are provided. The dual-rotor in-wheel motor includes an axle and a hub. The axle is fixedly connected to a frame. The hub relatively rotates around the axle. A disc-shaped intermediate stator is fixedly connected on the axle. A left coil assembly and a right coil assembly are fixedly mounted on two sides of the intermediate stator, respectively. A left rotor and a right rotor are respectively arranged on the two sides of the intermediate stator. The left coil assembly drives the left rotor to rotate, and the right coil assembly drives the right rotor to rotate. A left clutch is arranged between the left rotor and the hub, and a right clutch and a speed reduction mechanism are arranged between the right rotor and the hub.

A vehicle drive assistance system equipped with an open hydraulic circuit has a hydraulic pump, a hydraulic motor and a reservoir. The system has a three-position valve suitable for: in a first position, supplying the hydraulic motor in a first direction of operation; in a second position, fluidly isolating the hydraulic motor from the hydraulic pump and connecting the hydraulic motor to the reservoir; and in a third position, supplying the hydraulic motor in a second direction of operation. A flow controller is positioned between the hydraulic pump and the three-position valve. The flow controller is configured in such a way as to selectively allow or not allow the passage of fluid through the supply duct of the hydraulic pump toward the three-position valve.

A hub motor is disclosed, the hub motor is mounted on an axle assembly, the an axle assembly includes an axle rod and an axle sleeve, and an independent cassette flywheel is provided at one end of the axle sleeve where an end cover is located, a limiting sleeve is disposed outside of the cassette flywheel to prevent the cassette flywheel from detaching from the axle sleeve, and an anti-rotation piece for preventing rotation of the axle sleeve is provided at another end of the axle sleeve where a wheel hub is located.

A wheeled vehicle includes a vehicle body, a vibration absorbing element, an auxiliary arm, a wheel, and a driving member. The vehicle body includes a fixing plate. The housing connected to the fixing plate. The vibration absorbing element includes a first end and a second end. The first end is fixed to the housing. The auxiliary arm includes a connecting end and a free end. The connecting end is connected to the housing. The free end is configured to swing relative to the connecting end. The free end is fixed to the second end. The wheel includes an axle, and the axle is rotationally connected to the free end. The driving member is fixed to the housing and configured to drive the wheel.

In an aspect, a self-balancing two-wheeled vehicle is provided, having a body, and first and second wheels rotatably coupled to the body. The second wheel has at least one lateral roller rotatable about an axis that is one of oblique and orthogonal to a rotation axis of the second wheel. At least one motor is coupled to the second wheel to control rotation of the second wheel and the at least one lateral roller. At least one sensor is coupled to the body to generate orientation data therefor. A control module is coupled to the at least one motor to control operation thereof at least partially based on the orientation data generated by the at least one sensor.

An electric vehicle comprises a vehicle chassis extending along a longitudinal axis and a rotatable vehicle drive axle disposed along a transverse axis and having opposed ends that are configured for attachment to a pair of opposed drive wheels. The electric vehicle also comprises a selectively movable electric propulsion motor comprising a rotatable motor shaft rotatable about a motor axis, the electric propulsion motor configured to be mounted within the vehicle chassis and operatively coupled to the rotatable vehicle drive axle and opposed drive wheels, the motor axis configured to be oriented in a substantially vertical direction.