Honda UNI-CUB

The Honda UNI-CUB is a concept two-axis self-balancing personal transporter for use in barrier-free indoor environments, shown at the Osaka Motor Show in 2013. As the successor to the 2009 Honda U3-X it was demonstrated there, with no launch date announced. It is controlled by weight shifting, in the same manner as the Segway PT, and is fully self-balancing and able to move in any direction, including sideways. It has two wheels, a larger driving wheel for travelling forward and a trailing steering wheel at 90 degrees to it. Both the drive wheel and the steering wheel are built from several smaller planet wheels that allow the wheel to move laterally: when moving forward the main wheel is powered and the smaller planet wheels on the steering wheel rotate to avoid dragging, and to turn the steering wheel is rotated.