Patent 8050820 was granted and assigned to Toyota on November, 2011 by the United States Patent and Trademark Office.
When a vehicle turns, a body and a left and a right wheel are inclined inward of a turning circle. Consequently forces are exerted to an operator in an up-down direction, which leads to reducing discomfort felt by the operator. In addition, since a gravity center of the vehicle is moved inward of the turning circle, a turning stability of the vehicle is improved.