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    Electronic device and control method thereof
    1.
    发明授权
    Electronic device and control method thereof 有权

    公开(公告)号：US11316452B2

    公开(公告)日：2022-04-26

    申请号：US17083703

    申请日：2020-10-29

    Applicant: Delta Electronics, Inc.

    Inventor： Ching-Hsiung Tsai ,  Yen-Ming Lu ,  Chia-Hui Chen

    IPC: H02P6/34 ,  H02P29/00 ,  H02P21/18

    Abstract: An electronic device includes a motor, a sensing device and a controller. The motor provides a motive power to the load. The sensing device measures a plurality of motion parameters of the motor. The controller calculates a real system parameter between the motor and the load according to the motion command and the plurality of motion parameters. According to the motion command and the plurality of motion parameters, the controller acquires a real value of a rotation speed of the motor. Moreover, controller establishes a system model according to the motion command and the real system parameter so as to acquire an estimated value of the rotation speed of the motor. If the first mean square error is not smaller than the first target value, the controller performs a particle swarm optimization algorithm to change the estimated value of the rotation speed of the motor.

    Mechanical arm system and mechanical arm control method
    3.
    发明授权
    Mechanical arm system and mechanical arm control method 有权

    公开(公告)号：US11613011B2

    公开(公告)日：2023-03-28

    申请号：US16927247

    申请日：2020-07-13

    Applicant: Delta Electronics, Inc.

    Inventor： Ching-Hsiung Tsai ,  Ming-Yang Cheng ,  Chung-Chan Hsu ,  Chia-Hui Chen ,  Hao-Lun Huang ,  Kuan-Shun Chao

    IPC: H02P7/00 ,  B25J9/16 ,  G05B19/23

    Abstract: A mechanical arm system includes at least two links, at least two control devices and at least two motor devices. Each of the control devices includes a first control unit, a mechanical arm control unit and a driving unit. The first control unit receives an end-position command to output a first torque signal. The mechanical arm control unit includes a rigid mechanical unit and a mechanical model unit. The rigid mechanical unit receives the first torque signal to obtain a rigid mechanical torque, and the mechanical model unit receives the rigid mechanical torque and operates the flexible mechanical model to establish the mechanical arm model for obtaining the target torque, and the target position signal is output according to the target torque. The driving unit generates a driving signal according to the target position signal to adjust a rotation angle of the corresponding motor device.

    Method for predicting and compensating frictions of feed system, and computer readable storage
    4.
    发明授权
    Method for predicting and compensating frictions of feed system, and computer readable storage 有权

    公开(公告)号：US11561530B2

    公开(公告)日：2023-01-24

    申请号：US17031235

    申请日：2020-09-24

    Applicant: Delta Electronics, Inc.

    Inventor： Chia-Yen Lee ,  Yu-Hsiang Cheng ,  Chia-Hui Chen ,  Ping-Chun Tsai

    IPC: G05B19/416 ,  G05B19/414 ,  G05B23/02

    Abstract: A method for predicting and compensating frictions of a feed system includes following steps: constantly obtaining current signals and angle-position signals of a motor by a motor driver of a feed system after being activated; calculating frictions of the motor upon each rotating position according to the obtained current signals and angle-position signals and generating multiple records of friction data; creating a friction model according to the multiple records of friction data and the angle-position signals each respectively corresponding to each record of friction data with respect to each rotating position; importing current angle-position signal of the motor to the friction model for predicting a predicted friction; calculating a compensation current based on the predicted friction; and, controlling the motor driver to additionally provide the compensation current to the motor for conquering an upcoming friction of the feed system approximate to the predicted friction.

    ELECTRONIC DEVICE AND CONTROL METHOD THEREOF
    5.
    发明申请
    ELECTRONIC DEVICE AND CONTROL METHOD THEREOF 有权

    公开(公告)号：US20210218353A1

    公开(公告)日：2021-07-15

    申请号：US17083703

    申请日：2020-10-29

    Applicant: Delta Electronics, Inc.

    Inventor： Ching-Hsiung Tsai ,  Yen-Ming Lu ,  Chia-Hui Chen

    IPC: H02P6/34 ,  H02P21/18 ,  H02P29/00

    Abstract: An electronic device includes a motor, a sensing device and a controller. The motor provides a motive power to the load. The sensing device measures a plurality of motion parameters of the motor. The controller calculates a real system parameter between the motor and the load according to the motion command and the plurality of motion parameters. According to the motion command and the plurality of motion parameters, the controller acquires a real value of a rotation speed of the motor. Moreover, controller establishes a system model according to the motion command and the real system parameter so as to acquire an estimated value of the rotation speed of the motor. If the first mean square error is not smaller than the first target value, the controller performs a particle swarm optimization algorithm to change the estimated value of the rotation speed of the motor.

    Equipment cabinet and slidable-and-rotatable rack assembly thereof
    7.
    发明授权
    Equipment cabinet and slidable-and-rotatable rack assembly thereof 有权

    公开(公告)号：US09801302B2

    公开(公告)日：2017-10-24

    申请号：US14873804

    申请日：2015-10-02

    Applicant: DELTA ELECTRONICS, INC.

    Inventor： Yen-Wen Huang ,  Kuan-Lung Wu ,  Chia-Hui Chen

    IPC: H05K5/00 ,  H05K7/18 ,  H05K7/14 ,  G06F1/18 ,  H05K5/02

    CPC classification number: H05K7/186 ,  G06F1/187 ,  H05K5/0217 ,  H05K7/1411 ,  H05K7/1422 ,  H05K7/1489 ,  H05K7/183

    Abstract: An equipment cabinet and a slidable-and-rotatable rack assembly are provided. The equipment cabinet includes a housing and a rack assembly. The rack assembly is disposed in the receiving space of the housing. The rack assembly comprises a first slidable tray, at least two first rail assemblies, a frame, and a first rotation shaft assembly. The first rail assemblies are connected with the first slidable tray and the housing respectively and configured for allowing the first slidable tray to be moved relative to the housing. The frame is carried by the first slidable tray and has a base plate. The first rotation shaft assembly is coupled with the base plate of the frame and the first slidable tray and configured for allowing the frame to be rotated relative to the first slidable tray after the frame carried by the first slidable tray is drawn out.

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