Patent attributes
A personal transportation vehicle comprises a carrier, a control device, a first pair of wheels and a second pair of wheels, wherein the first pair of wheels are fixed in a direction and the second pair of wheels are mounted on swivels disposed below the carrier, each of the first pair of wheels and the second pair of wheels comprises a first wheel and a second wheel, and the first pair of wheels and the second pair of wheels are arranged aligned and parallel to each other below the carrier, a first controller, a first driving device for driving the first wheel of the first pair of wheels, a second controller and a second driving device for driving the second wheel of the first pair of wheels. The control device is configured to transmit signals to the first controller and the second controller to control the first driving device and the second driving device, such that the second pair of wheels are swiveled and driven by a difference between the rotational speeds of the first wheel and the second wheel of the first pair of wheels to determine a movement direction of the transportation vehicle.
