Patents by Inventor Li-Chi Wu

Li-Chi Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12151781
    Abstract: A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer, a motor, a first sensor, a housing, a second sensor and a driving controller. The gear-plate-output, a reducer-output shaft and a reducer-fixed shaft of the reducer are disposed in parallel and sleeved on the pedal shaft concentrically. The motor drives the gear-plate-output shaft to rotate. The first sensor is disposed on the reducer-fixed shaft for sensing a first torque of the reducer-output shaft acting on the reducer-fixed shaft. The reducer-fixed shaft is connected to the housing. A frameset-fastening component protrudes outwardly from the housing, and is configured to fix the power module on the frameset. The second sensor is disposed on the frameset-fastening component for sensing a second torque of the power module acting on the frameset. The driving controller controls the motor in accordance with the second torque and the first torque.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: November 26, 2024
    Assignee: Delta Electronics, Inc.
    Inventors: Hung-Wei Lin, Yu-Xian Huang, Li-Chi Wu, Chi-Wen Chung
  • Publication number: 20230406445
    Abstract: A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a gear-plate-output shaft, a reducer, a motor, a first sensor, a housing, a second sensor and a driving controller. The gear-plate-output, a reducer-output shaft and a reducer-fixed shaft of the reducer are disposed in parallel and sleeved on the pedal shaft concentrically. The motor drives the gear-plate-output shaft to rotate. The first sensor is disposed on the reducer-fixed shaft for sensing a first torque of the reducer-output shaft acting on the reducer-fixed shaft. The reducer-fixed shaft is connected to the housing. A frameset-fastening component protrudes outwardly from the housing, and is configured to fix the power module on the frameset. The second sensor is disposed on the frameset-fastening component for sensing a second torque of the power module acting on the frameset. The driving controller controls the motor in accordance with the second torque and the first torque.
    Type: Application
    Filed: August 3, 2022
    Publication date: December 21, 2023
    Inventors: Hung-Wei Lin, Yu-Xian Huang, Li-Chi Wu, Chi-Wen Chung
  • Patent number: 11320326
    Abstract: A force sensor includes a sensing element, a forced element and strain gauges. There are flexure mechanisms on the sensing element, the forced element is coupled to a free end of each of the flexure mechanisms, and each of the strain gauges is placed on an elastic portion of each of the flexure mechanisms respectively. Each of the strain gauges is provided to detect an elastic strain of the elastic portion when a forced is applied to the forced element, transmitted to the free end via the forced element and transmitted to the elastic portion via a flexure hinge of each of the flexure mechanisms.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 3, 2022
    Assignee: National Sun Yat-Sen University
    Inventors: Yu-Jen Wang, Li-Chi Wu
  • Publication number: 20210041312
    Abstract: A force sensor includes a sensing element, a forced element and strain gauges. There are flexure mechanisms on the sensing element, the forced element is coupled to a free end of each of the flexure mechanisms, and each of the strain gauges is placed on an elastic portion of each of the flexure mechanisms respectively. Each of the strain gauges is provided to detect an elastic strain of the elastic portion when a forced is applied to the forced element, transmitted to the free end via the forced element and transmitted to the elastic portion via a flexure hinge of each of the flexure mechanisms.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 11, 2021
    Inventors: Yu-Jen Wang, Li-Chi Wu