A method for controlling the an electric hand truck comprises the steps of: determining whether user manipulation is present due to a user input on the electric hand truck; and, if there is no user manipulation, then braking an electric motor that drives the wheels of the electric moving vehicle in a softlock manner in which, instead of power being applied to the electric motor, electrodes of the electric motor are short-circuited.

A tactical transport cart manually navigable by a single human operator over both topographic and hydrographic terrains has a frame, a payload-supporting area on the frame, a pair of wheels or other terrain-engaging transport propulsion members attached to the frame, a handle structure attached to the frame, at least one motor connected in driving relation to the transport propulsion members, a battery for providing motive power to the motor, and a control device connected between the battery and the motor for controlling supply of motive power to the motor, with a switch device mounted on the handle structure for selective actuation and deactuation of the motor. The frame, transport propulsion members and handle structure are cooperatively dimensioned and configured for movement of the cart over ground surfaces of topographic terrains and for partially and fully submerged movement over water-covered surfaces of hydrographic terrains.

A robot may include: a frame module constituting a main body; a driver module for powering a wheel rotatably coupled to the frame module; a position detector for detecting a position of a user terminal device; and a main controller configured for: controlling the driver module to operate in a user following mode based on a position of the user terminal device; and controlling the driver module to operate in a driving-power supporting mode based on whether a manual driving detector detects a user touch. The frame module may by coupled to a basket so that the robot may provide a transport service as a shopping cart, such as driving along a user's travel path in a following mode or supporting a user-supplied driving power when a user manually controls the cart.

A power assist system for a wagon having a safety cut-off system is provided. The power assist system preferably includes a wagon body having a plurality of wheels, at least one of which is a driven wheel, a pivotable handle, a drive system having a motor mechanically connected to the driven wheel, a microcontroller that obtains an input signal and provides an output signal to the drive system and, a safety cut-off system connected to the handle. In one embodiment the safety cut-off system includes a safety-control switch electrically connected to the microcontroller, and the microcontroller adjusts the signal sent to the drive system based on a state of the safety-control switch.

A moving body includes: a plurality of wheels capable of rotating around a plurality of rotating shafts disposed on a circumference around a common axis; and a supporting unit supporting the plurality of rotating shafts to be capable of revolving around the axis. A first power source is connected to the plurality of wheels to be capable of transmitting power so as to rotate the plurality of wheels. A second power source is connected to the supporting unit to be capable of transmitting power so as to revolve the plurality of wheels.

A trolley assembly includes a trolley housing defining an internal cavity. The assembly includes at least one ultra-violet (UV) illumination system contained within the internal cavity in a stowed position. The UV illumination system configured and adapted to extend outward from the internal cavity in a deployed position. The trolley assembly includes a battery in electrical communication with the at least one UV illumination system.

The present invention provides a stroller with a detachable auxiliary power structure including a stroller, at least one power control module and a cell unit. The stroller includes a front wheel member, a rear wheel member, a right folding frame and a left folding frame, the front ends of the right folding frame and the left folding frame are pivotally connected to the front wheel member, and the rear ends of the right folding frame and the left folding frame are pivotally connected to the rear wheel member. At least one power control module is placed on the bottom of the rear wheel frame and includes: a drive motor outputting a rotational speed and a torque, a gear box and a power output shaft connected with the gear box and the rear right wheel or the rear left wheel. A battery unit is connected to the drive motor.

A stroller system includes a stroller frame, a plurality of wheels connected to the stroller frame, a stroller seat attached to the stroller frame, a motor mounted on the stroller frame and configured to drive at least one of the plurality of wheels, a power source configured to supply power to the motor, and a controller configured to control the and thereby the movement of the stroller system.

A cart may include: a driving wheel; a motor configured to rotate the driving wheel; a motor drive circuit configured to drive the motor; a motor brake circuit configured to electrically brake the motor; a rotation speed sensor configured to detect a rotation speed of the motor; and a control device configured to control the motor via the motor drive circuit and the motor brake circuit based on a target rotation speed of the motor and the rotation speed detected by the rotation speed sensor. The motor brake circuit may include an electronically variable resistance element configured to operate in a linear mode and a switching mode in response to a control input signal. The motor brake circuit may be configured to operate the electronically variable resistance element in the linear mode when braking the motor.

A mobility device is provided and includes a base panel that supports a passenger. A plurality of wheels are disposed at a plurality of points of the base panel and are coupled to the base panel to be rotated with respect to a vertical axis. A rotary portion provides a rotational force to rotate the wheel with respect to the base panel. Additionally, a braking portion is disposed on the rotary portion to adjust the plurality of wheels to be rotated with respect to the base panel or positions of the plurality of wheels to be fixed.