Actuator displacement measurement system in electronic hydraulic system of construction equipment
    1.
    发明授权
    Actuator displacement measurement system in electronic hydraulic system of construction equipment 有权
    施工设备电子液压系统执行器位移测量系统

    公开(公告)号:US09506225B2

    公开(公告)日:2016-11-29

    申请号:US14349153

    申请日:2011-10-11

    申请人: Ji-Yun Kim

    发明人: Ji-Yun Kim

    摘要: An actuator displacement measuring system in an electro-hydraulic system for a construction machine is disclosed, which can detect an actuator displacement using the characteristics of an electro-hydraulic system. The actuator displacement measuring system includes controlling driving of an electric motor, determining whether the electric motor is driven, determining whether a set pressure value of a relief valve is larger than or equal to a measured pressure value of the hydraulic system if a displacement value of an actuator that is always detected deviates from a zero value of a reference position, setting the actuator displacement value to a previous value if a pressure value of the hydraulic system is larger than or equal to a pressure value of a relief valve and calculating the actuator displacement value using a rotating speed of the electric motor.

    摘要翻译: 公开了一种用于建筑机械的电动液压系统中的致动器位移测量系统,其可以使用电液系统的特性来检测致动器位移。 执行器位移测量系统包括控制电动机的驱动,确定电动机是否被驱动,如果泄压阀的设定压力值是否大于或等于液压系统的测量压力值,则如果位移值 总是检测到的致动器偏离参考位置的零值,如果液压系统的压力值大于或等于安全阀的压力值并且计算致动器,则将致动器位移值设定为先前值 使用电动机的转速进行位移值。

    FLUIDIC ACTUATOR
    4.
    发明申请
    FLUIDIC ACTUATOR 有权
    流体致动器

    公开(公告)号:US20150177741A1

    公开(公告)日:2015-06-25

    申请号:US14640549

    申请日:2015-03-06

    IPC分类号: G05D7/06 F16K11/14

    摘要: The invention relates to a fluidic actuator comprising a drive element (2) that can be supplied with a pressure fluid and a two-stage proportional position controller (3) controlling the supply with pressure fluid to the drive element, said actuator comprising an electro-fluidic pilot stage (10) of the position controller, exactly one electromechanical transducer (14) and exactly one proportional valve (16) actuated by said transducer and having a pressure fluid inlet (18), a control pressure outlet (19) and a discharge outlet (20). A fluidic power stage (11) of the position controller comprises two poppet valves (24, 25) having associated pressure-to-distance converters that are supplied by a common control chamber (34) which is connected to the control pressure outlet (19) of the pre-stage (10).

    摘要翻译: 本发明涉及一种流体致动器,其包括可供给压力流体的驱动元件(2)和控制向驱动元件施加压力流体的两级比例位置控制器(3),所述致动器包括电 - 位置控制器的流体先导级(10),正好一个机电换能器(14)和由所述换能器致动的正好一个比例阀(16),并具有压力流体入口(18),控制压力出口(19)和排放 出口(20)。 位置控制器的流体动力级(11)包括两个提升阀(24,25),该提升阀具有相连的压力 - 距离转换器,该转换器由连接到控制压力出口(19)的公共控制室(34)供应, 的前期(10)。

    CONTROLLED THREE-WAY PROPORTIONAL VALVE UNIT
    5.
    发明申请
    CONTROLLED THREE-WAY PROPORTIONAL VALVE UNIT 有权
    控制三路比例阀组

    公开(公告)号:US20150177740A1

    公开(公告)日:2015-06-25

    申请号:US14640204

    申请日:2015-03-06

    IPC分类号: G05D7/06 F16K11/10 F15B13/02

    摘要: The invention relates to a controlled three-way proportional valve unit comprising: a valve assembly with two individual valves; an actuating device actuating valves of the valve assembly; and a control unit acting upon the actuating device and having a control signal input, the valves of the valve assembly being designed as poppet valves arranged on opposite sides and having counter-rotatable valve spindles. The valve spindles are prestressed relative each other in opposite directions by a prestressing element such that, when the actuating unit is inactive, a first poppet valve is open and the second poppet valve is closed. The actuating device comprises an actuator common to both poppet valves, acts upon the two valve spindles and changes the position of the valve spindles counter to the effect of the prestressing element.

    摘要翻译: 本发明涉及一种受控三通比例阀单元,包括:具有两个单独阀的阀组件; 致动装置致动阀组件的阀; 以及控制单元,其作用在所述致动装置上并且具有控制信号输入,所述阀组件的阀被设计为布置在相对侧上并具有可逆旋转阀轴的提升阀。 阀主轴通过预应力元件在相反方向上相对预应力,使得当致动单元不活动时,第一提升阀打开,第二提升阀关闭。 致动装置包括两个提升阀共用的致动器,作用在两个阀轴上,并且将阀主体的位置与预应力元件的作用相反。

    Drift compensation control method for a machine
    6.
    发明申请
    Drift compensation control method for a machine 失效
    一台机器的漂移补偿控制方法

    公开(公告)号:US20080087163A1

    公开(公告)日:2008-04-17

    申请号:US11581806

    申请日:2006-10-17

    IPC分类号: F15B9/10

    摘要: A method of controlling a machine having a hydraulically actuated linkage includes lowering a load suspended by the leakage at least in part by leaking hydraulic fluid from a portion of a hydraulic actuation system, and generating a drift compensation control signal responsive to leaking hydraulic fluid. A machine includes an electronic controller in control communication with a valve, the electronic controller being configured to compensate for leakage induced drift of at least one hydraulic actuator of a machine hydraulic system by selectively commanding adjusting of the valve if drift criteria for the hydraulic system are satisfied.

    摘要翻译: 控制具有液压致动联动装置的机器的方法包括至少部分地通过从液压致动系统的一部分泄漏液压流体来降低由泄漏悬挂的负载,以及响应泄漏的液压流体产生漂移补偿控制信号。 一种机器包括与阀门进行控制通信的电子控制器,该电子控制器被配置为通过选择性地指示阀门的调节来补偿液压系统的至少一个液压致动器的泄漏引起的漂移,如果液压系统的漂移标准是 满意。

    Method and apparatus for controlling air cylinder
    7.
    发明授权
    Method and apparatus for controlling air cylinder 有权
    气缸控制方法及装置

    公开(公告)号:US07210394B2

    公开(公告)日:2007-05-01

    申请号:US11142094

    申请日:2005-06-02

    IPC分类号: F15B9/09 G05B19/19

    摘要: A method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves. Pressures in the pressure chambers are detected by pressure sensors, signals of the detected pressures are feedback to a controller, and the degrees of opening of the air servo valves are adjusted by corresponding PID adjusters of the controller on the basis of the respective differences between instruction values and detection values. The displacement of the rod of the air cylinder is detected by a displacement sensor, and a detection signal of the displacement is fed back to the controller so that a gain of the PID adjuster is always changed in accordance with the detection signal of the displacement.

    摘要翻译: 一种用于控制气缸的方法,使得空气通过空气伺服阀供应到气缸的压力室并从其中排出。 通过压力传感器检测压力室中的压力,将检测到的压力的信号反馈到控制器,并且通过控制器的相应PID调节器根据指令之间的相应差异来调整空气伺服阀的打开程度 值和检测值。 通过位移传感器检测气缸的杆的位移,并且将位移的检测信号反馈到控制器,使得PID调节器的增益总是根据位移的检测信号而改变。