Patent ID: 6459222
Filing Date: 2002-10-01
Classification: B60L,B62M

Abstract:
A bicycle control system for controlling an elebike (electrical power-aided bicycle) according to a rider's inputs, the elebike comprising:a bicycle frame; at least one wheel rotatably installed on the frame; a transmission mechanism installed on the frame for actuating the wheel; a pedal mechanism installed on the frame for transforming pedal forces inputted by the rider into pedal torque and coupling the torque to the transmission mechanism to actuate the wheel; a servo motor installed on the frame and comprising a control port, wherein the servo motor is used for outputting a torque according to an input voltage inputted from the control port; a coupling device installed on the frame for coupling the torque outputted from the servo motor to the transmission mechanism to actuate the wheel; and a power control handle installed on the frame and connected the control port of the servo motor for outputting a handle voltage according to the rider's inputs to control the torque outputted by the servo motor; the bicycle control system comprising: a torque detector for detecting the pedal torque inputted by the rider and outputting a torque signal; a rotation rate detector for detecting the rotation rate of the wheel and outputting a rotation rate signal; a control circuit for processing the torque signal outputted by the torque detector and the rotation rate signal outputted by the rotation rate detector and outputting a motor control voltage; and a voltage coupling device connected with the handle, the output port of the control circuit and the control port of the servo motor for coupling the handle voltage outputted from the handle with the motor control voltage outputted from the control circuit in a predetermined manner and outputting a coupling voltage to control the servo motor.