Hydraulic derate stability control and calibration

    公开(公告)号:US10954654B2

    公开(公告)日:2021-03-23

    申请号:US15908561

    申请日:2018-02-28

    申请人: Deere & Company

    摘要: A work machine includes systems and methods for stability control and for calibrating the stability control. During operation the load on a work implement is detected and it is determined if the load is at or above a threshold value. A derated fluid output is determined if the load is at or above the threshold value. A control signal is output to the valve based on the derated fluid output. During calibration the pressure in a hydraulic cylinder is detected at one or more locations as a mechanical arm moves between a lower position and an upper position. One or more baseline values are established for the mechanical arm between the lower position and the upper position.

    Implement vibration system and method

    公开(公告)号:US10597845B2

    公开(公告)日:2020-03-24

    申请号:US15717108

    申请日:2017-09-27

    申请人: Deere & Company

    摘要: An implement vibration system and method is disclosed that includes a vibration activation device; an electrohydraulic mechanism and a controller. The controller monitors the vibration activation device and sends movement signals to the electrohydraulic mechanism to control implement movement. When the vibration activation device is activated, the controller sends vibration signals to the electrohydraulic mechanism to cause the implement to vibrate. An operator control can send implement commands where the movement signals are based on the implement commands, and when vibration is activated the controller can superimpose the vibration signals on the movement signals. The vibration signals can cause a hydraulic cylinder to repeatedly extend and retract. An electrohydraulic control valve can receive the movement signals and control hydraulic flow to the hydraulic cylinder based on the movement signals. The vibration signals can be complementary signals. The amplitude and/or frequency of the vibration signals can be adjustable.

    System and method for automatic dump control

    公开(公告)号:US10106951B2

    公开(公告)日:2018-10-23

    申请号:US15271571

    申请日:2016-09-21

    申请人: Deere & Company

    发明人: David J. Myers

    摘要: An automatic dump control system and method are disclosed for a loader having a boom and a bucket each positionable by hydraulic cylinders actuated by a hydraulic circuit. The control system includes a source of image data of a receptacle and a source of position data for the boom and the bucket. The control system includes a controller that: determines a height of the receptacle based on the image data; determines a difference between the height of the receptacle and a height of the bucket based on the position data; outputs one or more control signals to the hydraulic circuit to position at least one of the boom and the bucket at a target height above the receptacle; determines that the bucket is positioned over the receptacle; and outputs one or more control signals to the hydraulic circuit to dump a load in the bucket into the receptacle.

    Hydraulic derate stability control

    公开(公告)号:US10954650B2

    公开(公告)日:2021-03-23

    申请号:US15908555

    申请日:2018-02-28

    申请人: Deere & Company

    摘要: A work machine includes a mechanical arm and a work implement coupled to the mechanical arm. The work implement is configured to receive a load. A hydraulic actuator is coupled to the mechanical arm to move the arm between a first position and a second position. A sensor unit is configured to detect the load in the work implement. A valve is in fluid communication with the hydraulic actuator for supplying a fluid output to the hydraulic actuator. A controller is in communication with the value and the sensor unit. The controller is configured to transmit a control signal to the valve to adjust the fluid output to the hydraulic actuator, and wherein the controller is configured to derate the fluid output in response to a signal from the sensor unit that a load is at or above a threshold value.

    Visual assistance and control system for a work machine

    公开(公告)号:US10829911B2

    公开(公告)日:2020-11-10

    申请号:US16122121

    申请日:2018-09-05

    申请人: Deere & Company

    摘要: A work machine includes a frame and a set of ground engaging elements movably supported by the frame and driven by an engine to drive movement of the machine in a worksite. The machine includes a location sensor configured to generate a machine location sensor signal indicative of a location of the machine. The machine includes a communication component that communicates with a worksite server and retrieves object location data. The machine also includes virtual model generator logic that determines the object is within a field of view of an operator of the machine, based on the machine location sensor signal and object location data, and generates an augmentation indication indicative of the determination. The machine includes augmentation logic that generates and displays an augmented reality overlay, based on the augmentation indication, and displays an indication of the object proximate the object within the field of view of the operator.

    SYSTEM AND METHOD FOR AUTOMATIC DUMP CONTROL

    公开(公告)号:US20180080193A1

    公开(公告)日:2018-03-22

    申请号:US15271571

    申请日:2016-09-21

    申请人: Deere & Company

    发明人: David J. Myers

    摘要: An automatic dump control system and method are disclosed for a loader having a boom and a bucket each positionable by hydraulic cylinders actuated by a hydraulic circuit. The control system includes a source of image data of a receptacle and a source of position data for the boom and the bucket. The control system includes a controller that: determines a height of the receptacle based on the image data; determines a difference between the height of the receptacle and a height of the bucket based on the position data; outputs one or more control signals to the hydraulic circuit to position at least one of the boom and the bucket at a target height above the receptacle; determines that the bucket is positioned over the receptacle; and outputs one or more control signals to the hydraulic circuit to dump a load in the bucket into the receptacle.

    Integrated CB microphone control
    10.
    发明授权

    公开(公告)号:US09803335B1

    公开(公告)日:2017-10-31

    申请号:US15156606

    申请日:2016-05-17

    申请人: DEERE & COMPANY

    摘要: A control system of a work machine including an operator's cab and an implement, the system comprising a vehicle control unit for controlling the machine; a first control device located in the cab for controlling a steering function of the machine; a second control device located in the cab for controlling the implement; a CB transceiver located in the cab, the CB transceiver configured to receive and transmit signals; and a CB microphone control disposed on the first control device or the second control device, the CB microphone control being operably actuable between an active position and an inactive position, where in the active position the transceiver is enabled to transmit a signal, and in the inactive position the transceiver is enabled to receive a signal.