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    CONTROLLING ON-TIME OF PWM APPLIED TO POWER BLOCKS IN WELDING SYSTEM
    2.
    发明公开
    CONTROLLING ON-TIME OF PWM APPLIED TO POWER BLOCKS IN WELDING SYSTEM 审中-公开

    公开(公告)号：US20240326149A1

    公开(公告)日：2024-10-03

    申请号：US18194838

    申请日：2023-04-03

    Applicant: The ESAB Group, Inc.

    Inventor： Philip Magnus Andersson ,  Lars David Leif Juliusson

    IPC: B23K9/095 ,  B23K9/09 ,  G05B11/42

    CPC classification number: B23K9/0953 ,  B23K9/092 ,  B23K9/093 ,  G05B11/42

    Abstract: A method of controlling pulse width modulation (PWM) applied to at least one power inverter to generate a weld current for cutting or welding comprises: receiving current values indicative of the weld current during a cycle of the PWM; receiving a target current value indicative of a target current for the weld current; during the cycle, turning ON a pulse to energize the at least one power inverter; and after turning ON the pulse, repeating multiple times during the cycle: determining whether to adjust an on-time of the pulse based on the current values and the target current value in order to drive the weld current toward the target current; and adjusting the on-time responsive to determining.

    ADAPTIVE DEVICE FOR HEADER CAPABLE OF PERFORMING LODGING DETECTION BASED ON LASER SENSOR AND CONTROL METHOD THEREOF
    3.
    发明公开
    ADAPTIVE DEVICE FOR HEADER CAPABLE OF PERFORMING LODGING DETECTION BASED ON LASER SENSOR AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20240224858A1

    公开(公告)日：2024-07-11

    申请号：US17927901

    申请日：2022-02-15

    Applicant: JIANGSU UNIVERSITY

    Inventor： Yue SHEN ,  Lingfei ZHANG ,  Jinming CHEN ,  Wei DU ,  Zhipeng DU

    IPC: A01D41/127 ,  G01S17/88 ,  G05B11/42

    CPC classification number: A01D41/1274 ,  G01S17/88 ,  G05B11/42

    Abstract: An adaptive device includes an transmission assembly and a laser sensor control assembly, where the transmission assembly includes a rotating shaft of a roller, a harvesting part, a motor base plate, a transmission belt of the harvesting part, a transmission shaft of a motor A, motor arms, the high-power motor A, a high-power motor B, a transmission shaft of the motor B, a transmission belt of the roller, and a rotating shaft of the harvesting part; and the laser sensor control assembly includes the motor base plate, upright lifting columns, a control base plate, a battery, a power distribution board, a voltage reduction module, electronic speed controllers, a main control board, a low-power motor, a laser sensor base plate, a laser sensor, tube clamps, a rotating shaft of the laser sensor, and a bearing for stabilizing the rotating shaft of the laser sensor.

    Adaptive PID gain for a zero order process
    5.
    发明授权
    Adaptive PID gain for a zero order process 有权

    公开(公告)号：US11914332B2

    公开(公告)日：2024-02-27

    申请号：US17498939

    申请日：2021-10-12

    Applicant: Schneider Electric Systems USA, Inc.

    Inventor： William Brian Piercy ,  Randy Marvin Miller

    IPC: G05B13/02 ,  G05B11/42

    CPC classification number: G05B13/024 ,  G05B11/42

    Abstract: Systems and methods for adaptively tuning a Proportional, Integral and Derivative (PID) controller in a zero order industrial process are provided. A method and system can involve receiving input data at one or more inputs of the PID controller and generating output data at one or more outputs of the PID controller in response to processing the input data. Error(s) associated with the controller are determined based on an analysis of a measured parameter with respect to a desired setpoint. The measured parameter may be indicated in the output data. Adaptive gain may be applied to the PID controller in response to the absolute value of the controller error both exceeding a deadband and increasing. Additionally, normal gain, which is lower than the adaptive gain, may be applied to the PID controller in response to the absolute value of the controller error either being below the deadband or decreasing.

    Method and apparatus for tuning a regulatory controller
    8.
    发明授权
    Method and apparatus for tuning a regulatory controller 有权

    公开(公告)号：US11860589B2

    公开(公告)日：2024-01-02

    申请号：US17141806

    申请日：2021-01-05

    Applicant: Honeywell International Inc.

    Inventor： Daniel Pachner ,  Vladimir Havlena ,  Pavel Otta

    IPC: G05B11/42 ,  G05B13/02 ,  G05B13/04

    CPC classification number: G05B11/42 ,  G05B13/024 ,  G05B13/042 ,  G05B13/048

    Abstract: During each of a plurality of iterations, a policy of a controller is updated and at least part of a process is controlled using the updated policy. The updated policy is associated with a performance level of the controller. For each iteration, the updated policy is determined using the associations generated during one or more previous iterations between the policies and the corresponding performance levels of the controller in controlling the at least part of the process, such that the updated policy is optimized to have a highest likelihood of producing a positive change in the performance level of the controller in controlling the at least part of the process rather than optimized to have a highest likelihood of producing a largest positive magnitude of change in the performance level of the controller in controlling the at least part of the process relative to the previous iteration.

    FLOWRATE CONTROL DEVICE, FLOWRATE CONTROL METHOD, AND FLUID SUPPLY SYSTEM
    9.
    发明公开
    FLOWRATE CONTROL DEVICE, FLOWRATE CONTROL METHOD, AND FLUID SUPPLY SYSTEM 审中-公开

    公开(公告)号：US20230333575A1

    公开(公告)日：2023-10-19

    申请号：US18041859

    申请日：2021-08-06

    Applicant: SHINWA CONTROLS CO., LTD.

    Inventor： Katsutoshi SAKAI ,  Yuki FUKUZAWA

    IPC: G05D7/06 ,  G05B11/42

    CPC classification number: G05D7/0623 ,  G05B11/42

    Abstract: A flowrate control device includes: a storing unit that stores opening degree characteristic of a flowrate regulating valve; an inputting unit that inputs a target flowrate of the fluid flowing out from the flowrate regulating valve, and a flowrate change velocity to reach the target flowrate; a detecting unit that detects, from when the control of the flowrate to the target flowrate is started, the flowrate of the fluid flowing out from the flowrate regulating valve at a predetermined cycle; and an opening-degree regulating unit that regulates an opening degree of the flowrate regulating valve. The opening-degree regulating unit determines a difference between a detected flowrate detected by the detecting unit and a planned flowrate in the course of achieving the target flowrate, the planned flowrate corresponding to the detected flowrate and being defined by the flowrate change velocity and the number of detection executed by the detecting unit.

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