利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.014 秒)

    Swing control algorithm for hydraulic circuit
    2.
    发明授权
    Swing control algorithm for hydraulic circuit 失效
    液压回路摆动控制算法

    公开(公告)号：US06761029B2

    公开(公告)日：2004-07-13

    申请号：US10013403

    申请日：2001-12-13

    申请人： James D. Linerode

    发明人： James D. Linerode

    IPC分类号： F15B13049

    CPC分类号： F15B11/0406 ,  E02F9/128 ,  E02F9/2025 ,  E02F9/2203 ,  F15B2211/20546 ,  F15B2211/30505 ,  F15B2211/3057 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/327 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/46 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/75 ,  F15B2211/76

    摘要： A fluid control system may comprise a pump, a tank, and an actuator including a working chamber. The system may be operative to control rotational movement of a swing structure and movement of an least one implement. A valve assembly may be configured to control fluid communication between the working chamber and the tank and to control fluid communication between the working chamber and the pump. An input device may be operative to selectively control movement of the swing structure. The system may include a controller in communication with the valve assembly and the input device. The controller may be configured to control a flow condition of the working chamber through a sensed pressure condition of the working chamber and a command from the input device.

    摘要翻译： 流体控制系统可以包括泵，罐和包括工作室的致动器。 该系统可操作以控制摆动结构的旋转运动和至少一个工具的移动。 阀组件可以被配置为控制工作室和罐之间的流体连通并且控制工作室和泵之间的流体连通。 输入装置可操作以选择性地控制摆动结构的运动。 该系统可以包括与阀组件和输入装置连通的控制器。 控制器可以被配置成通过感测到的工作室的压力条件和来自输入装置的命令来控制工作室的流动状态。

    Method and apparatus for controllably positioning a hydraulic actuator
    3.
    发明授权
    Method and apparatus for controllably positioning a hydraulic actuator 失效
    用于可控地定位液压致动器的方法和装置

    公开(公告)号：US5615593A

    公开(公告)日：1997-04-01

    申请号：US447406

    申请日：1995-05-23

    申请人： Glenn A. Anderson ,  James D. Linerode

    发明人： Glenn A. Anderson ,  James D. Linerode

    IPC分类号： G05D1/10 ,  F15B15/22

    CPC分类号： G05D1/101

    摘要： A system and method for controllably positioning a hydraulic actuator which is operably connected to a control surface includes at least one main control valve for controlling the hydraulic pressure supplied to the actuator in response to a control signal indicative of a predetermined actuator position and at least one parallel control valve for supplying additional hydraulic pressure to the actuator in response to an error signal indicative of the difference between the position of the actuator and the predetermined actuator position to thereby correct for any differences indicated by the error signal. By correcting for any differences indicated by the error signal, the errors in positioning the control surface can be decreased and the stiffness of the control surface can be increased. The control system also includes a sensor for monitoring the position of the actuator and a controller for generating the error signal in response to the difference between the position of the actuator and the predetermined actuator position. However, the at least one main control valve is independent of the sensor and the error signal such that the hydraulic pressure controllably supplied to the actuator by the at least one main control valve in response to the control signal is independent of the error signal. Thus, the stiffness of the control surface can by enhanced by the control system even though the size and weight of the at least one main control valve and the flow requirements of the hydraulic system are significantly reduced.

    摘要翻译： 用于可控地定位可操作地连接到控制表面的液压致动器的系统和方法包括至少一个主控制阀，用于响应于指示预定致动器位置的控制信号控制供应到致动器的液压，并且至少一个 并联控制阀，用于响应于指示致动器的位置与预定的致动器位置之间的差异的误差信号向致动器提供额外的液压，从而校正由误差信号指示的任何差异。 通过校正由误差信号指示的任何差异，可以减小控制面的定位误差，并且可以提高控制面的刚度。 控制系统还包括用于监测致动器的位置的传感器和用于响应于致动器的位置与预定致动器位置之间的差异而产生误差信号的控制器。 然而，至少一个主控制阀独立于传感器和误差信号，使得响应于控制信号由至少一个主控制阀控制地提供给致动器的液压压力与误差信号无关。 因此，即使至少一个主控制阀的尺寸和重量以及液压系统的流量要求显着降低，控制表面的刚度也可以由控制系统增强。