The invention discloses a torque and speed sensor for an electric bicycle which comprises a chain wheel, a crank and a deformation frame. The deformation frame is formed by an outer ring, an inner ring and a plurality of connecting ribs, wherein the outer ring and the inner ring are coaxially arranged, the connecting ribs are distributed in a radial mode, and the connecting ribs are connected between the inner ring and the outer ring. The inner ring is fixed to the crank, the outer ring is fixed to the chain wheel, and torque sensing magnetic steel and a linear hall integrated circuit corresponding to the torque sensing magnetic steel are respectively arranged on the inner ring and the outer ring. The torque and speed sensor further comprises a movable seat and a fixed seat, wherein the movable seat and the fixed seat are coaxially distributed together with the deformation frame, the movable seat is connected to the deformation frame, an auxiliary edge winding is fixed to the movable seat, the fixed seat is connected to the movable seat and can rotate around the axis of the movable seat, an original edge winding and a signal receiving plate are fixed to the fixed seat, the original edge winding and the auxiliary edge winding jointly form an isolation transformer, the original edge winding is electrically connected with an alternating-current generator arranged on the signal receiving plate, an outgoing line is arranged on the signal receiving plate, and the auxiliary edge winding is electrically connected with a signal outputting plate. The torque and speed sensor for the electric bicycle is simple in structure, stable in performance and high in sensitivity.


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    Title :

    Torque and speed sensor for electric bicycle


    Contributors:
    MA QINGYI (author)

    Publication date :

    2015-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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