Driving controller of the electromotive bicycle

A driving controller of the electromotive bicycle installing on the portion of a large gear inside the chain cover of electromotive bicycle comprising battery and driving motor;

• wherein, the driving motor of the electromotive bicycle is installed on the wheel axle end of a wheel, the electric connections between the battery, driving controller and the driving motor are connected along the inner side of the tube through the lead penetrating hole of the frame body;
• in using, when the chain is driven to rotate by the tread force on the foot pedals applied by the rider through the large gear, the current and voltage of the driving motor are provided from the battery controlled by the driving controller so that when the bicycle is in the states of actuating and climbing, it is driven by a larger auxiliary power or the power is switched to the "off" state automatically when it is sliding down or is drivining in high speed;
• characterized in that:
• the driving controller is located on the portion of the large gear, thus the spindle of the large gear is engaged on the gear axle which is installed inside the thread bush of the frame body through the bearing, the two ends of the wheel axle are hinged with the cranks, respectively, the end the two cranks are hinged with left foot pedals and right foot pedals, a PC board and the inside cover is located inside the large gear and a variable resistor and outside cover are located outside the large gear, which are matched with a check plate and a noise portion on the foot pedal crank outside the large gear and the other components on the large gear described hereinafter.