US Patent 9963195 Motorized bicycle with electronic speed controlled gears

A motorized bicycle includes a frame, a plurality of wheels coupled to the frame, pedals coupled to the frame for driving at least one of the wheels, gear(s) coupled to the frame, a motor coupled to the pedals and at least one of the wheels; a battery for supplying power to the motor; and a controller. In response to a selection of a current gear, the controller regulates a power output from the battery to the motor based on the current gear, where the motor propels the motorized bicycle to travel within a predetermined speed range associated with the current gear.