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    CONSTRUCTION MACHINES WITH REDUCED LATENCY ACTUATOR CONTROLS
    1.
    发明公开
    CONSTRUCTION MACHINES WITH REDUCED LATENCY ACTUATOR CONTROLS 审中-公开

    公开(公告)号：US20240026645A1

    公开(公告)日：2024-01-25

    申请号：US18027433

    申请日：2021-09-13

    Applicant: HUSQVARNA AB

    Inventor： Tommy Olsson

    IPC: E02F9/20 ,  E02F3/96 ,  E02F9/26

    CPC classification number: E02F9/205 ,  E02F3/964 ,  E02F9/268

    Abstract: A control device for controlling one or more actuators (110, 120, 130, 140) on a construction machine (100), the control device comprising a control input arrangement configured to receive a manual control command from an operator for controlling the one or more actuators, and to output a coordinate indicative of the manual control command as function of time, the control device further comprising a processing unit arranged to determine a first time derivative of the coordinate, and a transmitter arranged to transmit the coordinate and the first time derivative of the coordinate to an actuator control unit of the construction machine, thereby enabling compensation for time delay between the control device and the construction machine by the actuator control unit, wherein the time delay T to be compensated for is based on a pre-determined calibration setting.

    BOOM CORRECTION METHOD AND DEVICE FOR WORKING MACHINE
    2.
    发明公开
    BOOM CORRECTION METHOD AND DEVICE FOR WORKING MACHINE 审中-公开

    公开(公告)号：US20240003122A1

    公开(公告)日：2024-01-04

    申请号：US18449825

    申请日：2023-08-15

    Applicant: SHANGHAI SANY HEAVY MACHINERY CO., LTD

    Inventor： Ceng LI ,  Jialin SONG ,  Chuanyu WANG

    IPC: E02F9/26

    CPC classification number: E02F9/268

    Abstract: Disclosed are a boom correction method and a boom correction device for a working machine. The method includes: inputting an actual displacement value of a boom of a target working machine at a current moment and a first operating parameter of the target working machine at the current moment into a prediction model, and outputting a predicted displacement value of the boom at a next moment of the current moment; and calculating a difference between the predicted displacement value of the boom and a preset displacement value, and in response to that the difference is greater than a first preset threshold, adjusting a second operating parameter of the target working machine according to the difference to correct the boom of the target working machine; both the first operating parameter and the second operating parameter are related to a displacement of the boom.

    SYSTEM AND METHOD OF MONITORING FUNCTIONAL STATUS OF A HEAT GENERATING COMPONENT OF A WORK MACHINE
    3.
    发明公开
    SYSTEM AND METHOD OF MONITORING FUNCTIONAL STATUS OF A HEAT GENERATING COMPONENT OF A WORK MACHINE 审中-公开

    公开(公告)号：US20230257968A1

    公开(公告)日：2023-08-17

    申请号：US17651424

    申请日：2022-02-17

    Applicant: DEERE & COMPANY

    Inventor： DANIEL E. DERSCHEID

    IPC: E02F9/26 ,  E02F9/12

    CPC classification number: E02F9/268 ,  E02F9/123 ,  A01F2015/076

    Abstract: A method of monitoring a component of a work machine includes establishing fault threshold range of the component including a range of values of electromagnetic radiation indicative of a potential failure of the component. A controller is configured for receiving data from an infrared sensor related to a current electromagnetic radiation value emitted from the component, and comparing the current electromagnetic radiation value to the fault threshold range of the component. The controller may automatically communicate a first control signal to a machine control device when the current electromagnetic radiation value is within the fault threshold range of the component. The first control signal may include a message warning of potential failure of the component, or may control a drive associated with the component to alter or stop operation of the component prior to failure.

    Method Of Testing Cycle Time Of An Implement On A Work Machine And System Thereof
    5.
    发明申请
    Method Of Testing Cycle Time Of An Implement On A Work Machine And System Thereof 审中-公开

    公开(公告)号：US20180223502A1

    公开(公告)日：2018-08-09

    申请号：US15428562

    申请日：2017-02-09

    Applicant: Deere & Company

    Inventor： Aaron R. Kenkel ,  Michael R. Gratton

    IPC: E02F9/26 ,  E02F9/20 ,  G07C5/08 ,  G04F10/00

    CPC classification number: G04F10/00 ,  E02F3/283 ,  E02F9/267 ,  E02F9/268 ,  G07C5/0808 ,  G07C5/0816 ,  G07C5/0841

    Abstract: A method of determining a cycle time of an implement on a work machine includes providing a controller and an actuator for controlling the implement, sending a first instruction from the controller to move the implement to a first position, and sending a second instruction from the controller to move the implement from the first position to a second position. A distance between the first position and the second position is approximate full stroke of the actuator. The method also includes measuring an amount of time it takes for the implement to move between a first threshold position and a second threshold position. The first threshold position and the second threshold position are defined positions between the first and second positions. The method further includes determining the cycle time of the implement based on the measuring step.

    CONTROL SYSTEM FOR CONSTRUCTION MACHINERY
    10.
    发明申请
    CONTROL SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开

    公开(公告)号：US20180044891A1

    公开(公告)日：2018-02-15

    申请号：US15542987

    申请日：2016-01-12

    Applicant: Doosan Infracore Co., Ltd.

    Inventor： Yong-Lak CHO ,  Hyun-Sik LIM ,  Soo-Kwang LEE ,  Young-Shik CHO

    IPC: E02F9/22 ,  F15B21/08 ,  F15B13/04 ,  E02F9/26 ,  F15B13/02

    CPC classification number: E02F9/2228 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/268 ,  F15B13/025 ,  F15B13/0416 ,  F15B21/08

    Abstract: A control system for construction machinery includes a main control valve installed in a hydraulic line between a hydraulic pump and actuators, and including a first group of electro proportional pressure reducing valves outputting a secondary pressure in proportion to an external pressure command signal to a first spool for controlling a first group of actuators of the actuators, and a second group of electro proportional pressure reducing valves outputting a secondary pressure in proportion to an external pressure command signal to a second spool for controlling a second group of actuators of the actuators, a first pressure sensor configured to detect the secondary pressure outputted from the first group of electro proportional pressure reducing valves and a second pressure sensor configured to detect the secondary pressure outputted from the second group of electro proportional pressure reducing valves, and a controller configured to output pressure command signals to the electro proportional pressure reducing valves corresponding to a manipulation signal of the construction machinery, and configured to compare the secondary pressures detected by the first and second pressure sensors and the pressure command signals to determine to determine whether or not the electro proportional pressure reducing valves fail.

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