The invention provides a bicycle torque transmission mechanism and system and an electric power-assisted bicycle. The bicycle torque transmission mechanism comprises a middle shaft, a torque shaft sleeve, a first pedal crank, a second pedal crank and a detection circuit. Two ends of the middle shaft are respectively connected with the first pedal crank and the second pedal crank; the torque shaftsleeve is sleeved outside the middle shaft; the middle shaft can transmit torque to the torque shaft sleeve when receiving the torque transmitted by the first pedal crank and/or the second pedal crank; the torque shaft sleeve can deform when receiving the torque; the detection circuit comprises at least one group of magneto-dependent sensors which are arranged in pairs; the detection circuit is arranged on the outer side of the torque shaft sleeve and used for monitoring the state of the torque shaft sleeve and generating a monitoring signal when it is monitored that the torque shaft sleeve deforms. The torque transmission mechanism adopts a bilateral torque sensing structure, can precisely measure the strength of two pedals and better understand the strength requirement of a rider, and can be applied to various application occasions of bicycles.

    本申请提供一种自行车力矩传动机构、系统及电助力自行车,该自行车力矩传动机构包括中轴、力矩轴套、第一脚踏曲柄、第二脚踏曲柄和检测电路;中轴的两端分别与第一脚踏曲柄和第二脚踏曲柄连接;力矩轴套套设于中轴外部;中轴能够在接收到第一脚踏曲柄和/或第二脚踏曲柄传递的扭矩时将扭矩传递给力矩轴套;力矩轴套能够在接收到扭矩时产生形变;检测电路包括至少一组成对设置的磁敏传感器;检测电路设于力矩轴套外侧,检测电路用于监测力矩轴套的状态,并在监测到力矩轴套产生形变时生成监测信号。该力矩传动机构采用双边扭矩传感结构能够精准地测量双只脚踏的力量大小以及更好地理解骑行者力量需求,且能够应用于自行车各种应用场合。


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    Title :

    Bicycle torque transmission mechanism and system and electric power-assisted bicycle


    Additional title:

    一种自行车力矩传动机构、系统及电助力自行车


    Contributors:
    XIA SHENG (author) / HUA YUEFEI (author) / SU CHAO (author) / ZHONG ZHIYANG (author) / CHEN FANGYUAN (author) / WANG ZONGSHENG (author) / WU MENG (author)

    Publication date :

    2021-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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