Patent ID: 9079633
Filing Date: 2015-07-14
Classification: B60L,B62K,B62M,Y02T

Abstract:
1. A uni-wheel personal mobility vehicle with self-balancing function, comprising: an upper frame, comprising: a lower frame, being connected to the upper frame and comprising: a wheel, being pivotally connected to the supporting frame and driven by an in-wheel motor, wherein the in-wheel motor is assembled with a first sprocket wheel, and the first sprocket wheel is a ratchet wheel; a second sprocket wheel, being pivotally connected to the supporting frame and adjacent to the wheel, wherein the first sprocket wheel and the second sprocket wheel mesh with a roller chain; a pedal assembly, being pivotally connected to the second sprocket wheel and the supporting frame, wherein a pedaling torque applied to the pedal assembly can make the second sprocket wheel and the first sprocket wheel rotate, so as to provide a driving force to the wheel; a transmission pulley set, being connected between the handlebar and the lateral extension shaft; an idle pulley set, being disposed under the supporting rod and connected to the transmission pulley set through a transmission cable; a spring set, being connected between the transmission cable and the supporting frame, used for applying a pre-tension force to the transmission cable, so as to keep the tension of the transmission cable; and an inertial sensing and control module, being disposed on the supporting rod and electrically connected to the in-wheel motor; wherein the inertial sensing and control module automatically detect the change of the tilt angle and the absolute pitch rate of the upper frame, and then control the in-wheel motor to generate a balancing torque for maintaining the forward and backward balance of the upper frame and an auxiliary torque to electrically assist the propulsion of the vehicle; wherein after the driver controls the handle portion to rotate the handlebar, the manual torque applied to the handlebar would drive the transmission pulley set to rotate, and then one side of the transmission cable is pulled by the rotation of the transmission pulley set; therefore, one side of the spring set is in turn pulled by the transmission cable in which the direction of the cable has been changed by the idle pulley set, and then the spring set transmits the manual torque to the supporting frame for making the upper frame rotate relative to the lower frame through the pivot shaft, so as to make the wheel incline to one side thereof.