A folding electrically powered vehicle includes a handlebar unit mounted at an upper end of a stem; a front wheel; an inverted U-shaped front suspension assembly including an intermediate joint pivotably mounted on a lower portion of the stem, a rearward curved frame member, and two foot rests; a front frame having two ends of a front portion pivotably secured to the two ends of the suspension assembly, the front frame including two rearward extending bars; a rear frame including two side bars pivotably secured to the rearward extending bars, two rear wheels, and a stop tube across front portions of the side bars; a seat assembly including two bottom tubes pivotably secured to two ends of the rearward extending bars respectively, and a pivotal seat back; and two shock absorbers each pivotably secured to the seat assembly and the rear frame.

A motorized scooter is provided for use as an assistive mobility aid. The motorized scooter is easily folded for storage or transport. It comprises a front wheel in rotatably engagement with a steering tube, the front wheel including a hub and spokes extending therefrom, an electric motor housed in the hub and in mechanical communication with a cog, the cog engaging the spokes; a handle bar distally attached to the steering tube; a framework, the framework including a plurality of tubes that are in one or more of pivotal or slidable relation; a seat post slidably mounted on the framework; a seat attached to the seat post; and a pair of rear wheels in rotatable engagement with the framework.

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.

A wheeled personal mobility device for transporting a person, an electric motor for use with the personal mobility device, a splined connection, an electromagnetic braking system and a steering engagement mechanism. The wheeled personal mobility device may be embodied as a wheeled personal mobility aid. The wheeled personal mobility device is reconfigurable between at least three configurations.

A portable scooter travel tiller cover is described.

In one embodiment, a method includes determining vibration signals detected by a personal mobility vehicle, determining that the vibration signals correspond to an unexpected event occurred to the personal mobility vehicle, generating a feedback signal corresponding to the unexpected event, and transmitting the feedback signal corresponding to the unexpected event.

In one embodiment, a method includes determining vibration signals detected by a personal mobility vehicle, determining that the vibration signals correspond to an unexpected event occurred to the personal mobility vehicle, generating a feedback signal corresponding to the unexpected event, and transmitting the feedback signal corresponding to the unexpected event.

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.