ESTIMATION OF TERRAMECHANICAL PROPERTIES

    公开(公告)号:US20210362730A1

    公开(公告)日:2021-11-25

    申请号:US16882193

    申请日:2020-05-22

    Abstract: A system for estimating tire parameters for an off-road vehicle in real time, the system including a processing circuit including a processor and memory, the memory having instructions stored thereon that, when executed by the processor, cause the processing circuit to measure a position of the vehicle at a first time, determine, based on the position, motion characteristics of the vehicle, predict, based on the motion characteristics, a position of the vehicle at a second time, measure a position of the vehicle at the second time, and generate a tire parameter associated with the vehicle based on the predicted position and the measured position of the vehicle at the second time.

    HYDRAULIC ACTUATOR CONTROL SYSTEM

    公开(公告)号:US20210207621A1

    公开(公告)日:2021-07-08

    申请号:US16737324

    申请日:2020-01-08

    Abstract: A hydraulic actuator control system that includes an actuator. A pump pumps a hydraulic fluid to move the actuator. A first control valve fluidly couples to the pump. The first control valve provides a first hydraulic fluid flow to the actuator. A maximum first hydraulic fluid flow through the first control valve is less than a maximum required hydraulic fluid flow of the actuator. A second control valve fluidly couples to the pump. The second control valve provides a second hydraulic fluid flow to the actuator. A maximum second hydraulic fluid flow through the second control valve is less than the maximum required hydraulic fluid flow of the actuator. A controller controls the first control valve and the second control valve to provide the hydraulic fluid to the actuator.

    SYSTEM AND METHOD FOR CONTROLLING THE DIRECTION OF TRAVEL OF A WORK VEHICLE BASED ON AN ADJUSTED FIELD MAP

    公开(公告)号:US20210173410A1

    公开(公告)日:2021-06-10

    申请号:US16704514

    申请日:2019-12-05

    Abstract: A system for controlling a direction of travel of a work vehicle may include a location sensor configured to capture data indicative of a location of the work vehicle within a field. A controller of the disclosed system may be configured to receive an input indicative of the vehicle being positioned at a starting point associated with a guide crop row present within the field. After receiving the input, the controller may be configured to determine the location of the guide crop row within the field based on the data captured by the location sensor. Furthermore, the controller may be configured to compare the determined location of the guide crop row and a location of a selected crop row depicted in a field map to determine an initial location differential. In addition, the controller may be configured to adjust the field map based on the determined initial location differential.

    System and method for automatically controlling a lift assembly of a work vehicle
    6.
    发明授权
    System and method for automatically controlling a lift assembly of a work vehicle 有权
    用于自动控制作业车辆升降机组件的系统和方法

    公开(公告)号:US09580883B2

    公开(公告)日:2017-02-28

    申请号:US14467163

    申请日:2014-08-25

    CPC classification number: E02F3/434 E02F3/3414 E02F9/2041

    Abstract: In one aspect, a method for automatically controlling the operation of a work vehicle during the performance of a material moving operation may generally include monitoring cycle times for moving the work vehicle between a first location and a second location as the material moving operation is being performed and determining a work cycle time for moving the work vehicle between the first and second locations based on the monitored cycle times. In addition, the method may include automatically controlling the operation of a lift assembly of the work vehicle based on the work cycle time such that loader arms and an implement of the lift assembly are moved to a pre-defined loading position as the work vehicle is moved from the first location to the second location and to a pre-defined unloading position as the work vehicle is moved from the second location to the first location.

    Abstract translation: 一方面,用于在进行材料移动操作期间自动控制作业车辆的操作的方法通常可以包括在进行材料移动操作时在第一位置和第二位置之间移动工作车辆的监视循环时间 以及基于所监视的循环时间确定用于在第一和第二位置之间移动工作车辆的工作循环时间。 此外,该方法可以包括基于工作循环时间自动控制作业车辆的提升组件的操作,使得当工作车辆是装载机臂和提升组件的工具移动到预定义的装载位置时 当工作车辆从第二位置移动到第一位置时,从第一位置移动到第二位置并且移动到预定义的卸载位置。

    WORK VEHICLE WITH IMPROVED IMPLEMENT POSITION CONTROL AND SELF-LEVELING FUNCTIONALITY
    7.
    发明申请
    WORK VEHICLE WITH IMPROVED IMPLEMENT POSITION CONTROL AND SELF-LEVELING FUNCTIONALITY 有权
    具有改进的执行位置控制和自我调节功能的车辆

    公开(公告)号:US20170036899A1

    公开(公告)日:2017-02-09

    申请号:US14819736

    申请日:2015-08-06

    CPC classification number: B66F9/22 E02F3/433 E02F3/437 E02F9/2041

    Abstract: A method for automatically adjusting the position of an implement for a work vehicle may generally include receiving an input associated with a flow-related parameter of the work vehicle as loader arms of the work vehicle are being moved and determining a speed control signal for the implement based at least in part on the flow-related parameter, wherein the speed control signal is associated with an implement speed at which the implement is to be moved in order to maintain the implement at a fixed orientation relative to a given reference point. In addition, the method may include generating a valve command signal based at least in part on the speed control signal and transmitting the valve command signal to a valve associated with the implement in order to maintain the implement at the fixed orientation as the loader arms are being moved.

    Abstract translation: 一种用于自动调整工作车辆的工具的位置的方法通常可以包括在工作车辆的装载臂被移动时接收与作业车辆的与流动相关的参数相关联的输入,并且确定用于工具的工具的速度控制信号 至少部分地基于所述流量相关参数,其中所述速度控制信号与所述工具将要移动的实施速度相关联,以便相对于给定参考点将所述工具保持在固定的取向。 此外,该方法可以包括至少部分地基于速度控制信号产生阀命令信号,并且将阀命令信号传送到与工具相关联的阀,以便在装载器臂为 被移动

    WORK VEHICLE WITH IMPROVED LOADER/IMPLEMENT POSITION CONTROL AND RETURN-TO-POSITION FUNCTIONALITY
    8.
    发明申请
    WORK VEHICLE WITH IMPROVED LOADER/IMPLEMENT POSITION CONTROL AND RETURN-TO-POSITION FUNCTIONALITY 有权
    具有改进的装载机/执行位置控制和返回位置功能的车辆

    公开(公告)号:US20160108602A1

    公开(公告)日:2016-04-21

    申请号:US14519216

    申请日:2014-10-21

    CPC classification number: E02F3/434 E02F3/432 E02F9/2041 E02F9/2203 E02F9/265

    Abstract: A method for automatically controlling the operation of a lift assembly of a work vehicle may generally include receiving an input associated with moving loader arms and/or an implement of the lift assembly to a pre-defined position and monitoring a position of the loader arms and/or the implement relative to the pre-defined position. In addition, while a reference point associated with the loader arms and/or the implement is located outside an outer threshold boundary associated with the pre-defined positon, the method may include transmitting a first command signals) to move the loader arms and/or the implement towards the pre-defined position. Moreover, when the reference point is moved within the outer threshold boundary, the method may include transmitting a second command signal(s) in order to ramp down a movement velocity of the loader arms and/or the implement as the loader arms and/or the implement is moved closer to the pre-defined position.

    Abstract translation: 用于自动控制作业车辆的提升组件的操作的方法通常可以包括将与移动的装载机臂和/或提升组件的工具相关联的输入接收到预定义的位置并监视装载臂的位置和 /或相对于预定义位置的工具。 另外,当与加载器臂和/或工具相关联的参考点位于与预定义位置相关联的外阈值边界之外时,该方法可以包括发送第一命令信号)以移动加载器臂和/或 该工具朝着预定位置。 此外,当参考点在外部阈值边界内移动时,该方法可以包括发送第二命令信号,以便将加载器臂和/或工具的移动速度降低为加载器臂和/或 工具移动到更接近预定位置。

    SYSTEM AND METHOD FOR CONTROLLING LOAD DEPENDENT VALVE FLOW WITH AN OVERRUNING LOAD

    公开(公告)号:US20240183127A1

    公开(公告)日:2024-06-06

    申请号:US18075604

    申请日:2022-12-06

    CPC classification number: E02F9/2203 E02F3/422 E02F3/431 E02F9/2228 E02F3/141

    Abstract: A method for controlling load dependent valve flow rate in a presence of an overrunning load in a bucket includes receiving a measured pressure from and/or to a hydraulic valve, and the hydraulic valve is coupled to an actuator coupled to the bucket. The method includes calculating a load pressure on the actuator based on the measured pressure. The method includes receiving a first valve command for actuating the actuator to lower the bucket, the first valve command being associated with a desired valve flow rate and a desired maximum speed of the actuator. The method includes providing a second valve command based on a last calculated load pressure before receiving the first valve command, wherein the second valve command adjusts a valve opening area of the hydraulic valve so that a speed of the actuator corresponds to a maximum speed of the actuator for the last calculated load pressure.

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