TORQUE SENSING DEVICE FOR ELECTRIC ASSISTED BICYCLE

    公开(公告)号:US20240210259A1

    公开(公告)日:2024-06-27

    申请号:US18528174

    申请日:2023-12-04

    申请人: Shih-Hao LAI

    发明人: Shih-Hao LAI

    摘要: A torque sensing device comprises a torque sensor and a transmission mechanism. The torque sensor includes an outer tube and a first strain gauge. The outer tube has a main tube part and a first deformable part. The main tube part is connected to and surrounds a crankshaft of the transmission mechanism. The first deformable part is connected to the main tube part. The first deformable part extends circumferentially around the crankshaft between a first and a second side. The first deformable part has a first included angle defined between a first line extending through a center of the crankshaft and a first side and a second line extending through the center of the crankshaft and a second side. The first included angle is less than 180 degrees. The first strain gauge is attached to the first deformable part.

    Driving device and driving method for electric assisted bicycle

    公开(公告)号:US11952078B2

    公开(公告)日:2024-04-09

    申请号:US17308051

    申请日:2021-05-05

    申请人: Acer Incorporated

    发明人: Hao-Ming Chen

    摘要: A driving device and a driving method for an electric assisted bicycle are provided. The driving device includes a motor, a rotation speed sensor, a torque sensor and a controller. The rotation speed sensor senses a rotation speed value of a crank or a chainring of the electric assisted bicycle. The torque sensor obtains an average torque value applied by the crank to the chainring of the electric assisted bicycle. The controller controls an output of the motor in response to the rotation speed value and the average torque value.

    Power pedal
    9.
    发明授权

    公开(公告)号:US11738825B2

    公开(公告)日:2023-08-29

    申请号:US17968099

    申请日:2022-10-18

    发明人: Chun-Rong Chen

    摘要: A power pedal is provided, including: a shaft, including a first end configured to be assembled to a bicycle crank, a second end and a connection section connected between the first end and the second end, the connection section including a strain sensing module; a pedal body, connected to the second end; a power sensor, including a processing module and a shell member, the processing module being disposed on an outer circumferential wall of the connection section, the processing module including a processing unit and a wireless transmission unit electrically connected to each other, the processing unit being electrically connected to the strain sensing module, the shell member being disposed on the connection section and encompassing the processing module, the shell member including a receiving room, the receiving room being configured to receive a battery which is replaceable and electrically connected to the processing unit.

    MAGNETOELASTIC TORQUE SENSOR WITH EXTENDED COMPENSATION FOR INTERFERENCE FIELDS

    公开(公告)号:US20230266185A1

    公开(公告)日:2023-08-24

    申请号:US18041000

    申请日:2021-10-25

    申请人: Robert Bosch GmbH

    摘要: A magnetoelastic torque sensor having an evaluation unit and at least three magnetic field sensors. The evaluation unit acquires at least one measurement signal of a first magnetic field sensor, at least one measurement signal of a second magnetic field sensor and at least one third measurement signal of a third magnetic field sensor of the magnetoelastic torque sensor, and to determine a torque exerted on the shaft using the at least one measurement signal of the first magnetic field sensor, the at least one measurement signal of the second magnetic field sensor, the at least one measurement signal of the fourth magnetic field sensor, and a ratio of a distance between the second magnetic field sensor and the third magnetic field sensor in an axial direction to a distance between the first magnetic field sensor and the second magnetic field sensor in the axial direction.