Height control of an agricultural tool in a site-specific farming system
    1.
    发明授权
    Height control of an agricultural tool in a site-specific farming system 失效
    特定农场系统中农具的高度控制

    公开(公告)号:US5961573A

    公开(公告)日:1999-10-05

    申请号:US755167

    申请日:1996-11-22

    IPC分类号: A01B79/00 G06F165/00

    CPC分类号: A01B79/005

    摘要: A farming system which identifies the boundaries of agricultural fields and performs functions based upon whether a vehicle is located within a particular field is disclosed. The system includes a location signal generation circuit which receives positioning signals and generates location signals representative of the location of the vehicle. The system further includes a memory circuit which stores geo-referenced digital maps of the fields and may include boundary data or application maps for each field. The system further includes a control circuit which compares the location signals to the data stored in the memory circuit to determine when the vehicle is located in a particular field. In one embodiment, the control circuit selects a variable-rate application map for the particular field and generates variable-rate control signals from the map data which are applied to a variable-rate applicator. In another embodiment, the control circuit stores characteristic data sensed by a sensing circuit with correlated location signals in a geo-referenced digital map for the particular field. In another embodiment, the control circuit generates height control signals to raise and lower an agricultural tool such as a tractor plow or a combine header based upon relationships between the location of the tool in a field and the location of attributes in the field such as field boundaries or obstructions.

    摘要翻译: 公开了一种识别农田边界并根据车辆是否位于特定领域内执行功能的农业系统。 该系统包括位置信号发生电路,其接收定位信号并产生表示车辆位置的位置信号。 该系统还包括一个存储器电路,其存储字段的地理参考数字映射,并且可以包括用于每个字段的边界数据或应用映射。 该系统还包括控制电路,其将位置信号与存储在存储器电路中的数据进行比较,以确定车辆何时位于特定场中。 在一个实施例中,控制电路选择特定场的可变速率应用映射,并从应用于可变速率施加器的映射数据生成可变速率控制信号。 在另一个实施例中,控制电路存储由具有相关位置信号的感测电路感测的特征数据,用于特定领域的地理参考数字地图。 在另一个实施例中,控制电路产生高度控制信号,以根据场中工具的位置与场中属性的位置(例如场)之间的关系来产生和降低诸如拖拉机犁或组合头部之类的农具 边界或障碍物。

    Sequential command repeater system for off-road vehicles
    2.
    发明授权
    Sequential command repeater system for off-road vehicles 失效
    用于越野车的顺序命令中继器系统

    公开(公告)号:US5899950A

    公开(公告)日:1999-05-04

    申请号:US888754

    申请日:1997-07-07

    摘要: A control system for controlling outputs associated with off-road vehicles is disclosed herein. The outputs are actuated by actuators in response to control signals generated by a control circuit. In a normal mode, the control circuit generates the control signals based upon command signals generated by operator-actuatable command devices, and applies the control signals to the actuators to control the outputs. In a record mode, the control circuit stores a sequence of commands in a memory circuit to record the sequential actuations of the command devices. Then, in a playback mode, the control circuit generates the control signals based upon the recorded command sequence instead of the command signals. Playback can be triggered manually by a playback switch, or automatically based upon the geo-graphic position of the off-road vehicle. The control system can record and playback more than one command sequence. Each sequence step generates a recorded command which can depend upon a recorded event based upon values of a timer, geographic position or feedback signal. In addition, the operator can erase, view and edit the commanded sequences. The operator can also download and upload command sequences.

    摘要翻译: 本文公开了一种用于控制与越野车辆相关联的输出的控制系统。 响应于由控制电路产生的控制信号,致动器致动输出。 在正常模式中,控制电路基于由操作者可致命令装置产生的命令信号产生控制信号,并将控制信号施加到致动器以控制输出。 在记录模式中,控制电路将命令序列存储在存储器电路中以记录命令装置的顺序驱动。 然后,在重放模式中,控制电路基于记录的命令序列而不是命令信号来产生控制信号。 播放可以由播放开关手动触发,也可以根据越野车辆的地理位置自动进行。 控制系统可以记录和播放多个命令序列。 每个序列步骤基于定时器,地理位置或反馈信号的值产生可以依赖于记录的事件的记录命令。 此外,操作员可以擦除,查看和编辑命令的序列。 操作员还可以下载和上传命令序列。

    Control system for a hitched or trailed implement
    3.
    发明授权
    Control system for a hitched or trailed implement 有权
    挂钩或拖车工具的控制系统

    公开(公告)号:US6105679A

    公开(公告)日:2000-08-22

    申请号:US182376

    申请日:1998-10-29

    CPC分类号: A01B63/00 A01B63/1006

    摘要: A control system for a hitched or trailed implement coupled to a work vehicle is disclosed herein. The control system allows control to be selectively transferred between various types of implements by use of a hydraulic selector valve. An electronic control unit controls the actions of a hitch assembly actuator, a trailed implement, an auxiliary device, or some combination thereof as determined by the configuration of the hydraulic selector valve.

    摘要翻译: 本文公开了一种用于联接到作业车辆的挂钩或牵引工具的控制系统。 控制系统允许通过使用液压选择阀在不同类型的工具之间选择性地转移控制。 电子控制单元通过液压选择阀的结构来确定悬挂组件致动器,拖尾工具,辅助装置或其组合的动作。

    Active roadability control for work vehicles
    4.
    发明授权
    Active roadability control for work vehicles 失效
    工作车辆的主动可行驶控制

    公开(公告)号:US5884204A

    公开(公告)日:1999-03-16

    申请号:US633135

    申请日:1996-04-16

    摘要: A system for reducing oscillations of an implement carried by a vehicle in a lifted position during travel. The implement is coupled to an implement positioning system including an actuator for raising and lowering the implement in response to a control signal. The system includes at least one load sensor for sensing implement load, a position sensor for sensing implement position, and a control circuit configured to generate a control signal to the actuator in a first manner based at least upon implement position and in a second manner based at least upon implement load. The control circuit transitions from the first manner of operation to the second manner of operation upon detecting oscillations of the implement beyond a predetermined magnitude. The control circuit improves roadability of the vehicle by operating in a roadability mode including the first and second manners of operation wherein the roadability mode is entered based at least upon the implement being in a lifted position and vehicle speed being greater than a predetermined threshold speed.

    摘要翻译: 一种用于减少在行驶期间由提升位置的车辆承载的工具的振动的系统。 该装置与包括用于响应于控制信号升高和降低工具的致动器的工具定位系统耦合。 该系统包括用于感测工具负载的至少一个负载传感器,用于感测实施位置的位置传感器,以及被配置为基于至少基于实施位置以第二方式以第一方式向致动器生成控制信号的控制电路 至少在实施负载时。 当检测到工具的振荡超过预定的大小时,控制电路从第一操作方式转换到第二操作方式。 控制电路通过以包括第一和第二操作方式在内的行驶模式运行而提高了车辆的行驶性能,其中至少基于车辆处于提升位置并且车速大于预定阈值速度,进入行驶模式。

    Apparatus and method for wireless remote control of an operation of a
work vehicle
    5.
    发明授权
    Apparatus and method for wireless remote control of an operation of a work vehicle 失效
    无线遥控工作车辆操作的装置和方法

    公开(公告)号:US6112139A

    公开(公告)日:2000-08-29

    申请号:US182149

    申请日:1998-10-29

    CPC分类号: E02F9/205 E02F3/847

    摘要: An apparatus and method is disclosed for wireless remote control of an output element coupled to a work vehicle. The output element performs work external to the vehicle and is actuated by an actuator controlled by an output controller in response to at least a remote control signal. The apparatus includes a wireless remote transmitter movable with respect to the vehicle and a wireless receiver supported by the vehicle. The transmitter has an actuatable input device for generating a command signal, a transmitter antenna, and a transmitter control circuit which receives the command signal from the input device, generates the remote control signal in response to the command signal, and applies the remote control signal to the transmitter antenna for wireless transmission to the work vehicle. The receiver includes a receiver antenna and a receiver control circuit which receives the remote control signal from the receiver antenna after transmission by the transmitter, and applies the remote control signal to the output controller.

    摘要翻译: 公开了一种用于无线遥控耦合到工作车辆的输出元件的装置和方法。 输出元件执行车辆外部的工作,并由至少一个遥控信号由由输出控制器控制的致动器致动。 该装置包括可相对于车辆移动的无线远程发射器和由车辆支持的无线接收器。 发射机具有用于产生命令信号的致动输入装置,发射机天线和发射机控制电路,其从输入装置接收命令信号,响应于命令信号产生遥控信号,并施加遥控信号 到发射机天线,用于无线传输到工作车辆。 接收机包括接收机天线和接收机控制电路,其在由发射机发射之后从接收机天线接收遥控信号,并将遥控信号施加到输出控制器。

    Gain adaptation control for hydraulic systems
    6.
    发明授权
    Gain adaptation control for hydraulic systems 失效
    获得液压系统的适应控制

    公开(公告)号:US6016875A

    公开(公告)日:2000-01-25

    申请号:US21433

    申请日:1998-02-10

    CPC分类号: G05B13/024 A01B63/1117

    摘要: A system or method for controlling the position of an implement coupled to a work vehicle. The implement is moveable by a hydraulic positioning assembly including an actuator and a valve assembly which control the flow of fluid to the actuator in response to control signals. The valve assembly includes raise and lower valves, each valve requiring a control signal equal to a threshold value before the valve opens and fluid begins to flow. The system includes a sensor to detect the position of the implement and a control circuit. In response to a change in a position command, the control circuit applies a control signal to the appropriate raise or lower valve based upon the respective threshold value. The control signal is generated by using a predetermined gain. When undesirable implement movement such as an overshoot condition is detected, the control circuit modifies the gain value. The modified gain value is used to generate subsequent control signals for actuating the implement.

    摘要翻译: 一种用于控制耦合到工作车辆的工具的位置的系统或方法。 该工具可由包括致动器和阀组件的液压定位组件移动,所述致动器和阀组件响应于控制信号控制流体到致动器的流动。 阀门组件包括升降阀和下阀,每个阀需要在阀打开和流体开始流动之前控制信号等于阈值。 该系统包括用于检测工具的位置的传感器和控制电路。 响应于位置指令的改变,控制电路基于相应的阈值向适当的上升或下限阀施加控制信号。 通过使用预定的增益产生控制信号。 当检测到诸如过冲状况的不期望的实施移动时,控制电路修改增益值。 修改的增益值用于产生用于致动工具的后续控制信号。

    System for controlling the position of an implement attached to a work
vehicle
    7.
    发明授权
    System for controlling the position of an implement attached to a work vehicle 失效
    用于控制附接到工作车辆的工具的位置的系统

    公开(公告)号:US5810095A

    公开(公告)日:1998-09-22

    申请号:US685817

    申请日:1996-07-25

    摘要: A system or method for controlling the position of an implement coupled to a work vehicle. The implement is moveable by a hydraulic positioning assembly including an actuator and a valve assembly which control the flow of fluid to the actuator in response to control signals. The valve assembly includes raise and lower valves, each valve requiring a control signal equal to a threshold value before the valve opens and fluid begins to flow. The system includes a sensor to detect the position of the implement and a control circuit. In response to a change in a position command, the control circuit applies a control signal to the appropriate raise or lower valve based upon the respective threshold value. The control signal may include a component for moving the implement at a desired rate of movement. After undesirable implement movement is detected, the control circuit modifies the threshold value. The modification may occur when the control circuit detects that the implement is moving at an excessive rate due to the effects of valve hysteresis and implement weight. The control circuit may detect the undesirable movement by determining that the position error value is more negative than a predetermined value.

    摘要翻译: 一种用于控制耦合到工作车辆的工具的位置的系统或方法。 该工具可由包括致动器和阀组件的液压定位组件移动,所述致动器和阀组件响应于控制信号控制流体到致动器的流动。 阀门组件包括升降阀和下阀,每个阀需要在阀打开和流体开始流动之前控制信号等于阈值。 该系统包括用于检测工具的位置的传感器和控制电路。 响应于位置指令的改变,控制电路基于相应的阈值向适当的上升或下限阀施加控制信号。 控制信号可以包括用于以期望的运动速度移动工具的部件。 在检测到不期望的实施移动之后,控制电路修改阈值。 当控制电路检测到工具由于阀滞后和实施重量的影响而以过高的速度移动时,可能发生修改。 控制电路可以通过确定位置误差值比预定值更负的方式来检测不期望的移动。

    Hitch assembly control system
    8.
    发明授权
    Hitch assembly control system 失效
    搭接组装控制系统

    公开(公告)号:US5549166A

    公开(公告)日:1996-08-27

    申请号:US560016

    申请日:1995-11-17

    IPC分类号: A01B63/111 A01B63/112

    CPC分类号: A01B63/1117

    摘要: A hitch assembly control system including an actuator which positions the hitch assembly in response to control signals provided to an electrically driven actuator. The control system further includes an electronic controller operated under the influence of a program for deriving the control signals for the actuator from a series of inputs which monitor and measure various performance criteria. The program functions to operate the hitch assembly in a plurality of different operating states. In a DRAFT state, the hitch assembly position is controlled under the influence of at least four independently set variables. The control system of the present invention is capable of calibrating the hitch assembly configuration as well, as the limits of hitch assembly operation. Moreover, the control system of the present invention is capable of detecting, categorizing and recording failures which occur in various states of hitch assembly operation. The control system of the present invention furthermore is capable of maintaining a substantially constant rate of elevational movement of the hitch assembly regardless of the weight of the ground engaging assembly attached to the hitch assembly.

    摘要翻译: 一种牵引组件控制系统,包括致动器,其响应于提供给电动致动器的控制信号来定位联结组件。 该控制系统还包括一个电子控制器,该电子控制器在一个程序的影响下运行,该程序用于从监视和测量各种性能标准的一系列输入中导出致动器的控制信号。 该程序用于以多种不同的操作状态操作牵引组件。 在DRAFT状态下,挂钩装配位置在至少四个独立设定的变量的影响下进行控制。 本发明的控制系统也能够根据搭接组装操作的限制来校准搭接组件的结构。 此外,本发明的控制系统能够检测,分类和记录在各种挂接组装操作状态下发生的故障。 此外,本发明的控制系统能够保持搭接组件的基本上恒定的升降运动速度,而与附接到搭接组件的地面接合组件的重量无关。

    Threshold current control system for hydraulic valves
    9.
    发明授权
    Threshold current control system for hydraulic valves 失效
    液压阀阈值电流控制系统

    公开(公告)号:US6058343A

    公开(公告)日:2000-05-02

    申请号:US73590

    申请日:1998-05-06

    摘要: A system or method for controlling the position of an implement coupled to a work vehicle. The implement is moveable by a hydraulic positioning assembly including an actuator and a valve assembly which control the flow of fluid to the actuator in response to control signals. The valve assembly includes raise and lower valves, each valve requiring a control signal equal to a threshold value before the valve opens and fluid begins to flow. The system includes a sensor to detect the position of the implement and a control circuit. In response to a change in a position command, the control circuit applies a control signal to the appropriate raise or lower valve based upon the respective threshold value. The control signal may include a component for moving the implement at a desired rate of movement. After undesirable implement movement is detected, the control circuit modifies the threshold value. The modification may occur when the control circuit detects that the implement is moving at an excessive rate due to the effects of valve hysteresis and implement weight. The control circuit may detect the undesirable movement by determining that the position error value is more negative than a predetermined value. The modified threshold value then replaces the threshold value for subsequent implement movement. The new threshold value prevents the undesirable movement in subsequent implement movement.

    摘要翻译: 一种用于控制耦合到工作车辆的工具的位置的系统或方法。 该工具可由包括致动器和阀组件的液压定位组件移动,所述致动器和阀组件响应于控制信号控制流体到致动器的流动。 阀门组件包括升降阀和下阀,每个阀需要在阀打开和流体开始流动之前控制信号等于阈值。 该系统包括用于检测工具的位置的传感器和控制电路。 响应于位置指令的改变,控制电路基于相应的阈值向适当的上升或下限阀施加控制信号。 控制信号可以包括用于以期望的移动速度移动工具的部件。 在检测到不期望的实施移动之后,控制电路修改阈值。 当控制电路检测到工具由于阀滞后和实施重量的影响而以过高的速度移动时,可能发生修改。 控制电路可以通过确定位置误差值比预定值更负的方式来检测不期望的移动。 然后,修改的阈值替换用于随后的实施移动的阈值。 新的阈值防止随后的实施移动中的不期望的移动。

    Front wheel drive engagement control system for agricultural vehicles
    10.
    发明授权
    Front wheel drive engagement control system for agricultural vehicles 失效
    农用车前轮驱动接合控制系统

    公开(公告)号:US5802489A

    公开(公告)日:1998-09-01

    申请号:US339486

    申请日:1994-11-14

    摘要: A control system for engaging, disengaging and re-engaging a front wheel drive in an agricultural vehicle includes a control circuit configured to receive signals representative of vehicle operating parameters and to generate control signals corresponding to the desired state (i.e. engaged or disengaged) of a front wheel drive engagement circuit. Sensors are associated with the rear wheels, rear service brakes, implement positioning circuit, the vehicle body and the front axle to provide parameter signals related to wheel speed, braking, implement position and vehicle speed. Control logic executed by the control circuit in a continuously cycled routine determines the desired state of the engagement circuit based upon all operating parameters. The control circuit applies an appropriate control signal to the engagement circuit causing engagement or disengagement in accordance with the desired state.

    摘要翻译: 用于在农用车辆中接合,分离和重新接合前轮驱动器的控制系统包括控制电路,其被配置为接收代表车辆操作参数的信号,并产生对应于期望状态(即接合或分离)的控制信号 前轮驱动接合电路。 传感器与后轮,后部制动器,工具定位电路,车身和前桥相关联,以提供与车轮速度,制动,车辆位置和车辆速度相关的参数信号。 控制电路在连续循环程序中执行的控制逻辑基于所有操作参数确定接合电路的期望状态。 控制电路根据期望的状态向接合电路施加适当的控制信号,引起接合或分离。