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23 条记录 (耗时 0.025 秒)

    Control system for integrating a work attachment to a work vehicle
    1.
    发明授权
    Control system for integrating a work attachment to a work vehicle 失效
    用于将工作附件集成到工作车辆的控制系统

    公开(公告)号：US5182908A

    公开(公告)日：1993-02-02

    申请号：US819705

    申请日：1992-01-13

    申请人： Lonnie J. Devier ,  John J. Krone ,  Stephen V. Lunzman ,  Howard A. Marsden

    发明人： Lonnie J. Devier ,  John J. Krone ,  Stephen V. Lunzman ,  Howard A. Marsden

    IPC分类号： E02F9/20 ,  E02F9/22 ,  F15B11/16 ,  F15B21/00 ,  F15B21/08 ,  G05B19/042 ,  G05B19/43

    CPC分类号： E02F9/2221 ,  F15B11/162 ,  F15B11/165 ,  F15B21/08 ,  G05B19/042 ,  G05B19/43 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6333 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/71 ,  F15B2211/781 ,  F15B2211/865

    摘要： An apparatus controls a fluid system of a work vehicle. The work vehicle has an engine and at least one fluid circuit which has a pump driven by the engine. A plurality of control valves controllably pass fluid from the pump to a plurality of respective work elements. The control valves have movable valve stems. A work attachment which has a respective control valve is added to the fluid system. A plurality of operator control elements provide demand signals in response to selected settings. Each demand signal is indicative of a requested fluid flow to a respective work element or work attachment. A memory device stores select parameters of the fluid system. One of the select parameters is a predetermined priority value representing the precedence in which fluid is delivered from the pump to the control valve of the work attachment. A controller receives the predetermined priority value of the work attachment and the demand signals. The controller responsively determines the sequence in which fluid is distributed from the pump to the respective control valves. Then the controller delivers control signals to the rerspective control valves in response to the determination, selectively positioning the stem of the respective control valves.

    摘要翻译： 一种装置控制作业车辆的流体系统。 工作车辆具有发动机和至少一个具有由发动机驱动的泵的流体回路。 多个控制阀可控地将流体从泵传递到多个相应的工作元件。 控制阀具有可动阀杆。 具有相应控制阀的工件附加到流体系统中。 多个操作员控制元件响应于所选择的设置来提供需求信号。 每个需求信号指示要求的流体流向相应的工件或工件附件。 存储装置存储流体系统的选择参数。 选择参数中的一个是预定的优先级值，其表示流体从泵输送到工件附件的控制阀的优先级。 控制器接收工作附件和需求信号的预定优先级值。 控制器响应地确定流体从泵分配到相应的控制阀的顺序。 然后，控制器响应于确定，向控制阀提供控制信号，选择性地定位各个控制阀的阀杆。

    System and method for communicating information for fleets of earthworking machines
    2.
    发明授权
    System and method for communicating information for fleets of earthworking machines 有权
    用于沟通土方工程机队信息的系统和方法

    公开(公告)号：US6037901A

    公开(公告)日：2000-03-14

    申请号：US312876

    申请日：1999-05-17

    申请人： Lonnie J. Devier ,  N. Keith Lay ,  Satish M. Shetty ,  Adam J. Gudat

    发明人： Lonnie J. Devier ,  N. Keith Lay ,  Satish M. Shetty ,  Adam J. Gudat

    IPC分类号： E02F9/20 ,  G01S5/00 ,  G01S19/48 ,  G01S5/02 ,  H04B7/185

    CPC分类号： E02F9/2045 ,  G01S5/009

    摘要： A communications system and method for fleets of earthworking machines. The system and method includes a global communications level for communicating over long range distances, at least one site communications level for communicating over medium range distances, and at least one theater communications level for communicating over short range distances. The system and method also includes at least one local communications level for communicating between earthworking machines, and a fleet manager for coordinating communications of the earthworking machines as a function of at least one of the global communications level, the site communications level, the theater communications level, and the local communications level.

    摘要翻译： 土方机械通信系统和方法。 该系统和方法包括用于在远距离距离上进行通信的全球通信级别，用于在中程距离上进行通信的至少一个站点通信级别以及用于在短程距离上进行通信的至少一个影院通信级别。 该系统和方法还包括用于在土方工程机之间进行通信的至少一个本地通信级别和用于协调土方工程机器的通信的车队管理器，其作为全球通信级别，站点通信级别，剧院通信中的至少一个的功能 级别和本地通信级别。

    On-off pressure cutoff control for a variable displacement hydraulic pump
    5.
    发明授权
    On-off pressure cutoff control for a variable displacement hydraulic pump 失效
    可变排量液压泵的开 - 关压力切断控制

    公开(公告)号：US5197864A

    公开(公告)日：1993-03-30

    申请号：US821203

    申请日：1992-01-16

    申请人： Stephen V. Lunzman ,  John J. Krone ,  Lonnie J. Devier

    发明人： Stephen V. Lunzman ,  John J. Krone ,  Lonnie J. Devier

    IPC分类号： E02F9/22 ,  F04B49/00 ,  F04B49/08

    CPC分类号： F04B49/08

    摘要： High pressure cutoff controls are useful for variable displacement hydraulic pumps for reducing power losses at high pressure levels. Some operators, however, believe that they get more work from pumps not having the high pressure cutoff control. The subject on-off high pressure cutoff control includes an on-off valve disposed in a pilot passage connected to an output port of a pump and to an end of a high pressure cutoff valve. The on-off valve is selectively movable between a first position at which pressurized fluid passes through the pilot passage to the end of the high pressure cutoff valve to prevent it from functioning as a high pressure cutoff valve. Thus, an operator has the option of operating the hydraulic pump with or without the high pressure cutoff control.

    摘要翻译： 高压截止控制对于可变排量液压泵来说是有用的，用于降低高压级别的功率损耗。 然而，一些操作人员认为，他们从没有高压截止控制的泵获得更多的工作。 被摄体开 - 关高压切断控制装置包括设置在连接到泵的输出端口和高压截止阀的端部的先导通道中的开关阀。 开关阀可以选择性地在第一位置和第二位置之间移动，在该第一位置，加压流体通过引导通道到达高压截止阀的端部，以防止其作为高压截止阀而起作用。 因此，操作者可选择在具有或不具有高压切断控制的情况下操作液压泵。

    Power management control system for a hydraulic work machine
    10.
    发明授权
    Power management control system for a hydraulic work machine 失效
    液压作业机电源管理控制系统

    公开(公告)号：US5967756A

    公开(公告)日：1999-10-19

    申请号：US886727

    申请日：1997-07-01

    申请人： Lonnie J. Devier ,  Stephen V. Lunzman

    发明人： Lonnie J. Devier ,  Stephen V. Lunzman

    IPC分类号： F02D29/04 ,  F04B49/06 ,  F04B49/20 ,  F04B49/00

    CPC分类号： F04B49/20 ,  E02F9/2296 ,  F02D29/04 ,  F04B49/06 ,  F04B2201/1204 ,  F04B2203/0603 ,  F04B2203/0605 ,  F04B2207/041 ,  F04B2207/044

    摘要： An apparatus for controlling an electrohydraulic system of a work machine having an engine that drives a variable displacement pump is disclosed. A pump displacement setting device produces a pump command signal indicative of a desired displacement of the variable displacement pump. An engine speed setting device produces an engine command signal indicative of a desired rotational speed of the engine. A power manager receives the pump and engine command signals, determines an efficient engine speed and pump displacement, and produces an engine control signal that decreases the engine speed to the efficient engine speed and a pump control signal that increases the pump displacement to an efficient pump displacement, while maintaining a substantially constant pump flow rate.

    摘要翻译： 公开了一种用于控制具有驱动变排量泵的发动机的作业机械的电动液压系统的装置。 泵位移设定装置产生指示可变排量泵的期望位移的泵指令信号。 发动机转速设定装置产生指示发动机的期望转速的发动机指令信号。 功率管理器接收泵和发动机指令信号，确定有效的发动机转速和泵排量，并且产生将发动机转速降低到有效的发动机转速的发动机控制信号以及将泵排量增加到高效泵的泵控制信号 同时保持基本恒定的泵流量。