ELECTRIC POWER-ASSISTED BICYCLE TORQUE SENSING SYSTEM AND ELECTRIC POWER-ASSISTED BICYCLE

摘要

Disclosed is an electric power-assisted bicycle torque sensing system, comprising an inner ring gear (6), a planetary gear train (5), a sun gear output shaft (2), a pressure conversion device (9) and a signal processing element (8). The inner ring gear (6), the planetary gear train (5) and the sun gear output shaft (2) are meshed in sequence, the planetary gear train (5) drives the inner ring gear (6) to move, and the pressure conversion device (9) at the edge of the inner ring gear (6) transmits an acting force signal to the signal processing element (8). The signal processing element (8) converts the acting force signal into an electrical signal and transmits same to a controller so as to realize torque feedback. Therefore, with the electric power-assisted bicycle torque sensing system, the problem that a speed sensor is not suitable for the climbing of the electric power-assisted bicycle is solved; in addition, the system is simple and compact in structure, and torque data are stable and reliable, thereby ensuring a sense of reality and comfort when cycling. Further disclosed is an electric power-assisted bicycle including the electric power-assisted bicycle torque sensing system.