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    Failure diagnostic system and failure diagnostic method of motor encoder
    6.
    发明授权
    Failure diagnostic system and failure diagnostic method of motor encoder 有权

    公开(公告)号：US11988503B2

    公开(公告)日：2024-05-21

    申请号：US17747921

    申请日：2022-05-18

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Chia-Chih Chou

    IPC: G01B21/22 ,  G05B23/02 ,  G08B21/18

    CPC classification number: G01B21/22 ,  G05B23/0275 ,  G08B21/187

    Abstract: A failure diagnostic system of a motor encoder is disclosed and includes a motor, an encoder, a servo driver, and a safety module. The servo driver controls the motor through a current command. The safety module continuously obtains a feedback position of the motor through the encoder. When the safety module determines based on the feedback position that the current state of the motor is consistent with a pre-determined disturbance condition, the safety module requests the servo driver to output an additional current command to disturb the motor. Next, the safety module determines whether the encoder is failure based on a variation of following feedback position.

    METHOD FOR MEASURING ORTHOGONALITY OF ORTHOGONAL AXIS SYSTEM
    7.
    发明公开
    METHOD FOR MEASURING ORTHOGONALITY OF ORTHOGONAL AXIS SYSTEM 审中-公开

    公开(公告)号：US20240159528A1

    公开(公告)日：2024-05-16

    申请号：US18548682

    申请日：2021-12-22

    Applicant: CHOTEST TECHNOLOGY INC.

    Inventor： Zhiwei Zhang ,  Yuan Chen ,  Hejun Zhang ,  Furong Feng ,  Xuewen Liao ,  Longjun Cheng

    IPC: G01B21/22 ,  G01B21/04

    CPC classification number: G01B21/22 ,  G01B21/04

    Abstract: Some embodiments of the disclosure provide a method for measuring orthogonality of an orthogonal axis system, In some examples, the method includes following steps: placing an instrument on a bearing surface, intercepting a second rotary axis along an interception plane to obtain a first virtual cross section of the second rotary axis, and measuring the first virtual cross section to obtain a geometric center of the first virtual cross section as a first position; rotating a first rotary device to enable the second rotary axis to rotate with a preset angular degree, and measuring the second virtual cross section to obtain a geometric center of the second virtual cross section as a second position; and determining whether the orthogonality between the first rotary axis and the second rotary axis meets requirements or not on the basis of the first position and the second position.

    POSITION ESTIMATING SYSTEM, POSITION ESTIMATING UNIT, WORK MACHINE, AND EXTENSION UNIT
    8.
    发明公开
    POSITION ESTIMATING SYSTEM, POSITION ESTIMATING UNIT, WORK MACHINE, AND EXTENSION UNIT 审中-公开

    公开(公告)号：US20240159023A1

    公开(公告)日：2024-05-16

    申请号：US18550198

    申请日：2022-02-21

    Applicant: KOMATSU LTD.

    Inventor： Mitsuhiko KAMADO ,  Takashi SAKAI

    IPC: E02F9/26 ,  E02F3/32 ,  E02F3/38 ,  G01B21/22 ,  G01C21/16

    CPC classification number: E02F9/264 ,  E02F3/38 ,  G01B21/22 ,  G01C21/16 ,  E02F3/32

    Abstract: A position estimating system includes a first posture detector disposed in a linkage mechanism, and a controller that estimates information regarding the position of a bucket with respect to a work machine based on data regarding a shape of a first work implement, data regarding a shape of a second work implement, information regarding a posture of the first work implement, and a value detected by the first posture detector. The second work implement includes an extension part having a first end portion connectable to the bucket and a second end portion connectable to an arm. The linkage mechanism includes a first linkage part connected to the extension part through a first coupling portion, a second linkage part connected to the first linkage part through a second coupling portion, and a third linkage part disposed closer to the second end portion than the first linkage part.

    ROLL MAP GENERATING DEVICE FOR MERGE-WOUND ELECTRODE
    9.
    发明公开
    ROLL MAP GENERATING DEVICE FOR MERGE-WOUND ELECTRODE 审中-公开

    公开(公告)号：US20240151524A1

    公开(公告)日：2024-05-09

    申请号：US18277288

    申请日：2022-11-07

    Applicant: LG ENERGY SOLUTION, LTD.

    Inventor： Dong Yeop LEE ,  Jong Seok PARK ,  Jun Hyo SU ,  Ki Deok HAN ,  Byoung Eun HAN ,  Seung HUH ,  Su Wan PARK ,  Gi Yeong JEON ,  Jae Hwan LEE ,  Min Su KIM

    IPC: G01B21/22 ,  H01M10/04

    CPC classification number: G01B21/22 ,  H01M10/0409

    Abstract: An apparatus for generating a roll map of a merge-wound electrode includes a position measurement device configured to acquire coordinate value data for a longitudinal position of an electrode according to an amount of rotation of the rewinder. The apparatus includes an input device configured to input an input signal indicating a start of merge-winding or an end of merge-winding, a seam detector configured to detect a seam, a reference point detector configured to detect a plurality of reference points of the merge-wound electrode, and a roll map generator configured to generate a roll map for simulating the merge-wound electrode moving in a roll-to-roll state based on the input signal of the input device, and to display the longitudinal coordinate values of the electrode, the electrode coordinate values of the seam, and the electrode coordinate values of the plurality of reference points of the merge-wound electrode on the roll map.

    Method for Determining Foldable Screen Included Angle and Associated Devices of Method
    10.
    发明公开
    Method for Determining Foldable Screen Included Angle and Associated Devices of Method 审中-公开

    公开(公告)号：US20240125596A1

    公开(公告)日：2024-04-18

    申请号：US18004101

    申请日：2022-08-31

    Applicant: Honor Device Co., Ltd.

    Inventor： Xiaowu Zhang ,  Danhong Li ,  Haoxuan Di ,  Zheng Chen

    IPC: G01B21/22 ,  H04M1/02

    CPC classification number: G01B21/22 ,  H04M1/0214 ,  H04M1/0268

    Abstract: This application provides a method for determining a foldable screen included angle and associated devices of the method, and relates to the field of terminal technologies. The method includes: for each display screen, acquiring, by an acceleration sensor, an initial acceleration signal at time t, and acquiring, by a gyroscope sensor, an initial angular velocity signal at time t; for each display screen, performing first preprocessing on the initial acceleration signal at time t to determine a target value of a gravitational acceleration signal at time t, and performing second preprocessing on the initial angular velocity signal at time t to determine an intermediate angular velocity signal at time t; detecting a state of the foldable screen according to the gravitational acceleration signals corresponding to the two display screens at time t and the intermediate angular velocity signals at time t to determine the state of the foldable screen at time t; and determining the included angle corresponding to the foldable screen at time t according to the state of the foldable screen at time t.

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