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67 条记录 (耗时 0.032 秒)

    Compensating Temperature Effects in Magnetic Actuators
    61.
    发明申请
    Compensating Temperature Effects in Magnetic Actuators 有权
    补偿温度对磁力驱动器的影响

    公开(公告)号：US20100284119A1

    公开(公告)日：2010-11-11

    申请号：US12463496

    申请日：2009-05-11

    申请人： Scott Coakley ,  Michael B. Binnard

    发明人： Scott Coakley ,  Michael B. Binnard

    IPC分类号： H01H47/00

    CPC分类号： G03F7/70858 ,  G03F7/70525 ,  G03F7/70758 ,  G03F7/7085 ,  H01F7/1844 ,  H01F2007/1866

    摘要： Methods and apparatus for adjusting the amount of current provided to a magnetic actuator to compensate for a temperature change associated with the magnetic actuator are disclosed. According to one aspect of the present invention, an apparatus includes an actuator, which has at least one magnet and an associated force constant. The apparatus also includes a temperature sensing arrangement and a control arrangement, the temperature sensing arrangement being arranged to determine or measure a temperature of the magnet. The control arrangement adjusts the current provided to the actuator based on the temperature of the magnet. The current is adjusted to maintain a correct or desired force in light of temperature-induced variations to a force constant.

    摘要翻译： 公开了用于调节提供给磁致动器以补偿与磁致动器相关联的温度变化的电流量的方法和装置。 根据本发明的一个方面，一种装置包括具有至少一个磁体和相关力常数的致动器。 该装置还包括温度感测装置和控制装置，温度感测装置被布置成确定或测量磁体的温度。 控制装置基于磁体的温度来调节提供给致动器的电流。 电流被调节以保持正确或期望的力，根据温度引起的变化为力常数。

    DEVICE FOR CONTROLLING AN ELECTROMAGNETIC VALVE
    62.
    发明申请
    DEVICE FOR CONTROLLING AN ELECTROMAGNETIC VALVE 有权
    用于控制电磁阀的装置

    公开(公告)号：US20100106300A1

    公开(公告)日：2010-04-29

    申请号：US12518822

    申请日：2007-11-29

    申请人： Jan Kaluza ,  Horst Kleinknecht

    发明人： Jan Kaluza ,  Horst Kleinknecht

    IPC分类号： G05B13/02

    CPC分类号： H01F7/1844 ,  F01N3/206 ,  F02D41/20 ,  G01R31/06 ,  H01F2007/1866 ,  H03K17/165

    摘要： In a device for controlling an electromagnetic valve, input device(s) write a multitude of measured values for the current and/or the voltage into a first memory to represent a characteristic. Analysis device(s) perform a state analysis and/or a change-over-time analysis. On the basis of the state analysis and/or the change-over-time analysis, evaluation device(s) correct at least one control variable, which characterizes the control, and write it into a second memory. Control device(s) control an output stage on the basis of the control variables.

    摘要翻译： 在用于控制电磁阀的装置中，输入装置将用于电流和/或电压的大量测量值写入第一存储器以表示特性。 分析设备执行状态分析和/或转换时间分析。 基于状态分析和/或切换时间分析，评估装置校正表征控制的至少一个控制变量，并将其写入第二存储器。 控制装置根据控制变量控制输出级。

    MEDICAL FLUID MACHINE HAVING SOLENOID CONTROL SYSTEM WITH TEMPERATURE COMPENSATION
    63.
    发明申请
    MEDICAL FLUID MACHINE HAVING SOLENOID CONTROL SYSTEM WITH TEMPERATURE COMPENSATION 有权
    具有温度补偿电磁阀控制系统的医用流体机

    公开(公告)号：US20090213519A1

    公开(公告)日：2009-08-27

    申请号：US12036003

    申请日：2008-02-22

    申请人： John Bedingfield

    发明人： John Bedingfield

    IPC分类号： H01H47/00

    CPC分类号： H01F7/1805 ,  H01F7/1844 ,  H01F2007/1866 ,  H01F2007/1888

    摘要： A medical fluid machine having a solenoid control system with temperature compensation includes an electromechanical solenoid including an armature and a coil, a voltage source, a switching device configured to selectively apply power from the voltage source to the solenoid coil, and a control element connected electrically to the switching device and operable to receive at least one signal indicative of a resistance of the coil and using the signal to control the switching device to selectively apply power from the voltage source to the solenoid coil.

    摘要翻译： 一种具有温度补偿的电磁控制系统的医用流体机械包括：机电螺线管，包括电枢和线圈，电压源，被配置为选择性地将来自所述电压源的电力施加到所述螺线管线圈的开关装置;以及控制元件， 并且可操作以接收表示线圈电阻的至少一个信号，并且使用该信号来控制开关装置以选择性地将来自电压源的电力施加到螺线管线圈。

    System and method for servo control of nonlinear electromagnetic actuators
    67.
    发明申请
    System and method for servo control of nonlinear electromagnetic actuators 失效
    非线性电磁执行器的伺服控制系统和方法

    公开(公告)号：US20010043450A1

    公开(公告)日：2001-11-22

    申请号：US09771892

    申请日：2001-01-30

    申请人： Venture Scientifics, LLC

    发明人： Joseph B. Seale ,  Gary E. Bergstrom

    IPC分类号： H01H009/00

    CPC分类号： H02N15/00 ,  B60L13/06 ,  F01L9/04 ,  F01L2009/0405 ,  F01L2009/0486 ,  F02D13/0253 ,  F02D41/1401 ,  F02D41/20 ,  F02D2041/001 ,  F02D2041/1419 ,  F02D2041/2027 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2041/2079 ,  H01F7/1607 ,  H01F7/18 ,  H01F7/1844 ,  H01F2007/185 ,  H01F2007/1866 ,  H01F2007/1894 ,  H01H47/325 ,  H02K41/03 ,  H02P25/032 ,  Y02T10/18

    摘要： Servo control using ferromagnetic core material and electrical windings is based on monitoring of winding currents and voltages and inference of magnetic flux, a force indication; and magnetic gap, a position indication. Third order nonlinear servo control is split into nested control loops: a fast nonlinear first-order inner loop causing flux to track a target by varying a voltage output; and a slower almost linear second-order outer loop causing magnetic gap to track a target by controlling the flux target of the inner loop. The inner loop uses efficient switching regulation, preferably based on controlled feedback instabilities, to control voltage output. The outer loop achieves damping and accurate convergence using proportional, time-integral, and time-derivative gain terms. The time-integral feedback may be based on measured and target solenoid drive currents, adjusting the magnetic gap for force balance at the target current. Incorporation of permanent magnet material permits the target current to be zero, achieving levitation with low power, including for a monorail deriving propulsion from the levitation magnets. Linear magnetic approximations lead to the simplest controller, but nonlinear analog computation in the log domain yields a better controller with relatively few parts. When servo controlled solenoids provide a actuation of a pump piston and valves, electronic I.C resonance measurements determine liquid volume and gas bubble volume.

    摘要翻译： 使用铁磁芯材和电绕组的伺服控制基于对绕组电流和电压的监测以及磁通量的推断，力指示; 和磁隙，位置指示。 三阶非线性伺服控制被分为嵌套控制回路：快速非线性一阶内循环，通过改变电压输出使磁通跟踪目标; 以及较慢的几乎线性的二阶外循环，通过控制内循环的通量目标使磁隙跟踪目标。 内环使用有效的开关调节，优选地基于受控的反馈不稳定性来控制电压输出。 外环使用比例，时间积分和时间导数增益项实现阻尼和精确收敛。 时间积分反馈可以基于测量的和目标的电磁驱动电流，调整目标电流的力平衡的磁隙。 永磁材料的结合允许目标电流为零，实现低功率的悬浮，包括用于从悬浮磁体导出的单轨驱动。 线性磁场近似导致最简单的控制器，但是对数域中的非线性模拟计算产生的控制器数量较少，部件数量较少。 当伺服控制螺线管提供泵活塞和阀的致动时，电子I.C共振测量确定液体体积和气泡体积。