A wheel drive module comprises wheel (R), speed modulation gearbox (G), first electric motor (M1), and second electric motor (M2). First and second electric motors (M1, M2) jointly drive wheel (R) about wheel axis (A) by the speed modulation gearbox (G) and steer said wheel about steering axis (L). Wheel drive module comprises first motor electronics (10) for controlling first electric motor (M1) and second motor electronics (20) for controlling second electric motor (M2) and central electronics (30) connected to first and second motor electronics (10, 20), allowing a signal transfer. Wheel drive module comprises control logic for controlling first and second electric motors (M1, M2), which logic is provided by first and second motor electronics (10, 20), central electronics (30), application electronics (40) connected to the central electronics (30), allowing a signal transfer, or jointly by the central electronics (30) and the first and second motor electronics (10, 20).

The invention relates to a wheel drive module (1) for driving and steering a wheel (30), comprising the wheel (30), a first drive motor (11), a second drive motor (21), and a transmission, wherein the wheel (30) can be driven and steered simultaneously by the first drive motor (11) and the second drive motor (21) via the transmission, wherein a first motor shaft (12) for driving the transmission extends from the first drive motor (11) in a first motor shaft direction (12′), a second motor shaft (22) for driving the transmission extends from the second drive motor (21) in a second motor shaft direction (22′), the first motor shaft direction (12′) and the second motor shaft direction (22′) are opposite each other, and the first drive motor (11) and the second drive motor (21) extend parallel to the first and second motor shaft directions (12′, 22′) over a common overlap section (Ü).

Described is a modular transport unit adapted for transporting persons and/or goods and comprising at least one cabin module and/or at least one storage compartment module, and at least one autonomous propulsion module. The autonomous propulsion module may be adapted for simultaneously serving as a flexible, customizable undercarriage of said modular transport unit and, in operation, propelling said modular transport unit. The propulsion module may comprise a propulsion system, a suspension unit, and a housing. The housing may comprise a top cover element comprising at least one connection element adapted for connection with at least one complementary connection element provided on the cabin module and/or the storage compartment module to enable an end user to exchange the cabin module and/or the storage compartment module.

Methods and systems are provided for traction detection and control of a self-driving vehicle. The self-driving vehicle has drive motors that drive drive-wheels according to a drive-motor speed. Traction detection and control can be obtained by measuring the vehicle speed with a sensor such as a LiDAR or video camera, and measuring the wheel speed of the drive wheels with a sensor such as a rotary encoder. The difference between the measured vehicle speed and the measured wheel speeds can be used to determine if a loss of traction has occurred in any of the wheels. If a loss of traction is detected, then a recovery strategy can be selected from a list of recovery strategies in order to reduce the effects of the loss of traction.

An electrically powered, self-propelled cart for safely delivering heavy loads, such as concrete, within job sites with unlevel, irregular, or sloped terrain. A cargo bucket is tiltable over front drive wheels for transporting and dumping cargo. Electric drive motors associated with a transaxle propel wheels at a selectable speed in response to an electric control module. A steering column rotates in response to manually operated handle bars and activates a sensor to generate signals delivered to the control module for throttle adjustments. The sensor may be a linear potentiometer, a rotary differential transformer or a rotary encoder or shaft encoder measuring angular displacement. Extreme steering displacements will electrically reduce cart speed notwithstanding the previous speed setting chosen by the operator through the steering column.

Provided is a versatile platform having high versatility without increasing its weight. A versatile platform is used for a transport vehicle for crops, a security robot, or the like. The versatile platform includes a first axle, a second axle, a pair of first wheels and, a pair of second wheels and, motors and for driving the four wheels, a first steering portion for steering the first wheels, a second steering portion for steering the second wheels, and a battery support portion. A vehicle body frame integrally joins the first axle and the second axle and supports a work unit for performing operation. The vehicle body frame includes horizontal bar members and vertical bar members and is formed into a frame shape. The whole upper surface of the vehicle body frame is exposed to the outside.

A rotary drive device includes a pair of drive force transmissions, a pair of decelerators, a pair of carriers, and at least one coupler. Driving rollers are included in the pair of drive force transmissions. Driving rollers transmit drive force to a main wheel. The main wheel includes driven rollers. The pair of drive force transmissions are rotatable about a rotation axis. The pair of carriers accommodate at least a portion of the decelerators. The pair of carriers oppose each other in an axial direction along the rotation axis. The pair of carriers include a first carrier and a second carrier that are directly or indirectly coupled by the at least one coupler.

A rotary drive device in a mobile body includes a main wheel and a pair of drive assemblies opposing each other and each driving the main wheel. The main wheel includes driven rollers. One of the pair of drive assemblies includes a motor, a motor case, a drive force transmission, and driving rollers. The driving rollers are in the drive force transmission along a circumferential direction, and contact at least a portion of the driven rollers from one side of the rotary drive device of the axial direction. The drive force transmission rotates to transmit a drive force of the motor to the main wheel via the driving rollers. At least a portion of the motor case opposes at least a portion of the driving rollers in the axial direction.

An omnidirectional cart transport mechanism includes an automatic guided vehicle that includes a drive wheel and a drive mechanism that drives the drive wheel, and travels on a road surface by driving the drive wheel using the drive mechanism, a side guide mechanism that includes a pair of side plates movable in a first direction of approaching or separating from each other, and guides a cart to be coupled to the automatic guided vehicle to a coupled position by bringing the pair of side plates closer to each other with the cart positioned between the pair of side plates, and a cart lift mechanism that lifts a coupled portion of the cart guided to the coupled position.

A shuttle for logistics includes a vehicle body, a supercapacitor, a straight wheel, a straight motor, a transverse wheel, a transverse motor, a synchronous belt, a position sensor, a charging contact, a lifting motor, a lifting frame, a second synchronous belt, an encoder, a PLC controller, a lifting cam, a lifting position sensor, a telescopic fork, a finger, a telescopic fork position sensor, a telescopic fork motor, an antenna, and a controller. A bottom of the vehicle body is provided with the straight wheel and the transverse wheel, and a level of the straight wheel is lower than that of the transverse wheel. The straight motor and the transverse motor are arranged on the vehicle body, respectively. The straight motor is linked to the straight wheel, and the transverse motor is linked to the transverse wheel. The supercapacitor is arranged on the vehicle body.