US Patent 10035557 Self-balancing vehicle frame

A self-balancing vehicle frame is mounted with two angle sensors and two wheels that are electrically and respectively coupled to the angle sensors, and includes a front frame assembly that includes two front frame units and a first connecting unit. The front frame units cooperatively define a connecting space therebetween. Each of the front frame units is mounted with a respective one of the wheels and a respective one of the angle sensors, and is operable to tilt the corresponding one of the angle sensors. The first connecting unit is located in the connecting space, and interconnects the front frame units such that the front frame units are rotatable relative to each other.