MACHINE HYDRAULIC SYSTEM HAVING FINE CONTROL MODE
    2.
    发明申请
    MACHINE HYDRAULIC SYSTEM HAVING FINE CONTROL MODE 审中-公开
    具有精细控制模式的机械液压系统

    公开(公告)号:US20140033690A1

    公开(公告)日:2014-02-06

    申请号:US13562864

    申请日:2012-07-31

    IPC分类号: F15B13/00 F16K31/12

    摘要: A hydraulic system for a machine is disclosed. The hydraulic system may have a hydraulic actuator, and at least one valve configured to regulate fluid flows associated with the hydraulic actuator. The hydraulic system may also have an operator interface device configured to generate a position signal indicative of a desired movement velocity of the hydraulic actuator, a mode switch movable to generate a mode signal indicative of desired operation in one of a normal control mode and a fine control mode, and a controller. The controller may be configured to move the at least one valve to a first position based on the position signal when the mode signal indicates desired operation in the normal mode, and to move the at least one valve to a second position based on the position signal when the mode signal indicates desired operation in the fine control mode.

    摘要翻译: 公开了一种用于机器的液压系统。 液压系统可以具有液压致动器,并且至少一个阀构造成调节与液压致动器相关联的流体流。 液压系统还可以具有操作者接口装置,其被配置为产生指示液压致动器的期望移动速度的位置信号,模式开关可移动以产生指示在正常控制模式和罚款之一中的期望操作的模式信号 控制模式和控制器。 控制器可以被配置为当模式信号在正常模式中指示期望操作时基于位置信号将至少一个阀移动到第一位置,并且基于位置信号将至少一个阀移动到第二位置 当模式信号在精细控制模式中指示期望的操作时。

    HYDRAULIC CONTROL SYSTEM HAVING CYLINDER STALL STRATEGY
    4.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING CYLINDER STALL STRATEGY 有权
    液压控制系统具有循环冷却策略

    公开(公告)号:US20120216517A1

    公开(公告)日:2012-08-30

    申请号:US13036421

    申请日:2011-02-28

    IPC分类号: F15B13/06 F15B13/042

    摘要: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a hydraulic circuit, a pump configured to supply pressurized fluid, and a first sensor configured to generate a first signal indicative of a pressure of the hydraulic circuit. The hydraulic circuit may also have a first fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, a second sensor configured to generate a second signal indicative of a velocity of the first fluid actuator, and a controller in communication with the first and second sensors. The controller may be configured to receive an input indicative of a desired flow rate for the first fluid actuator, to determine an actual flow rate of the first fluid actuator based on the second signal, and to determine a stall condition of the first fluid actuator based on the desired flow rate, the actual flow rate, and the first signal.

    摘要翻译: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有液压回路,构造成供应加压流体的泵和构造成产生指示液压回路的压力的第一信号的第一传感器。 液压回路还可以具有流体连接以从液压回路接收加压流体的第一流体致动器,配置成产生指示第一流体致动器的速度的第二信号的第二传感器,以及与第一和第二流体连通的控制器 传感器。 控制器可以被配置为接收指示第一流体致动器的期望流量的输入,以基于第二信号确定第一流体致动器的实际流量,并且基于第一流体致动器的失速状态来确定 按所需流量,实际流量和第一信号。

    Hydraulic control system having cylinder stall strategy
    5.
    发明授权
    Hydraulic control system having cylinder stall strategy 有权
    液压控制系统具有气缸失速策略

    公开(公告)号:US08813486B2

    公开(公告)日:2014-08-26

    申请号:US13036712

    申请日:2011-02-28

    IPC分类号: F15B11/16

    摘要: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a hydraulic circuit, and a pump configured to supply pressurized fluid to the hydraulic circuit. The hydraulic control system may also have a first fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, a first valve arrangement movable to control a flow of fluid to the first fluid actuator, a second fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, and a second valve arrangement movable to control a flow of fluid to the second fluid actuator. The hydraulic control system may additionally have a controller in communication with the first and second valve arrangements. the controller may be configured to make a determination of a stall condition of the first fluid actuator, and to selectively change a flow command directed to the second valve arrangement based on the determination.

    摘要翻译: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有液压回路,以及构造成将加压流体供应到液压回路的泵。 液压控制系统还可以具有流体连接以从液压回路接收加压流体的第一流体致动器,可移动以控制流体流向第一流体致动器的第一阀装置,流体连接以从第 液压回路和可移动以控制流体流向第二流体致动器的第二阀装置。 液压控制系统还可以具有与第一和第二阀装置连通的控制器。 控制器可以被配置为确定第一流体致动器的失速状态,并且基于该确定来选择性地改变指向第二阀装置的流动指令。

    Hydraulic control system having cylinder stall strategy
    6.
    发明授权
    Hydraulic control system having cylinder stall strategy 有权
    液压控制系统具有气缸失速策略

    公开(公告)号:US08726647B2

    公开(公告)日:2014-05-20

    申请号:US13036421

    申请日:2011-02-28

    IPC分类号: F15B21/08

    摘要: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a hydraulic circuit, a pump configured to supply pressurized fluid, and a first sensor configured to generate a first signal indicative of a pressure of the hydraulic circuit. The hydraulic circuit may also have a first fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, a second sensor configured to generate a second signal indicative of a velocity of the first fluid actuator, and a controller in communication with the first and second sensors. The controller may be configured to receive an input indicative of a desired flow rate for the first fluid actuator, to determine an actual flow rate of the first fluid actuator based on the second signal, and to determine a stall condition of the first fluid actuator based on the desired flow rate, the actual flow rate, and the first signal.

    摘要翻译: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有液压回路,构造成供应加压流体的泵和构造成产生指示液压回路的压力的第一信号的第一传感器。 液压回路还可以具有流体连接以从液压回路接收加压流体的第一流体致动器,配置成产生指示第一流体致动器的速度的第二信号的第二传感器,以及与第一和第二流体连通的控制器 传感器。 控制器可以被配置为接收指示第一流体致动器的期望流量的输入,以基于第二信号确定第一流体致动器的实际流量,并且基于第一流体致动器的失速状态来确定 按所需流量,实际流量和第一信号。

    HYDRAULIC CONTROL SYSTEM HAVING CYLINDER STALL STRATEGY
    7.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING CYLINDER STALL STRATEGY 有权
    液压控制系统具有循环冷却策略

    公开(公告)号:US20120216518A1

    公开(公告)日:2012-08-30

    申请号:US13036712

    申请日:2011-02-28

    IPC分类号: F15B7/06

    摘要: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a hydraulic circuit, and a pump configured to supply pressurized fluid to the hydraulic circuit. The hydraulic control system may also have a first fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, a first valve arrangement movable to control a flow of fluid to the first fluid actuator, a second fluid actuator fluidly connected to receive pressurized fluid from the hydraulic circuit, and a second valve arrangement movable to control a flow of fluid to the second fluid actuator. The hydraulic control system may additionally have a controller in communication with the first and second valve arrangements. the controller may be configured to make a determination of a stall condition of the first fluid actuator, and to selectively change a flow command directed to the second valve arrangement based on the determination.

    摘要翻译: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有液压回路,以及构造成将加压流体供应到液压回路的泵。 液压控制系统还可以具有流体连接以从液压回路接收加压流体的第一流体致动器,可移动以控制流体流向第一流体致动器的第一阀装置,流体连接以从第 液压回路和可移动以控制流体流向第二流体致动器的第二阀装置。 液压控制系统还可以具有与第一和第二阀装置连通的控制器。 控制器可以被配置为确定第一流体致动器的失速状态,并且基于该确定来选择性地改变指向第二阀装置的流动指令。