METHOD AND APPARATUS FOR BACK ELECTROMOTIVE FORCE (EMF) POSITION SENSING IN A CRYOCOOLER OR OTHER SYSTEM HAVING ELECTROMAGNETIC ACTUATORS
    41.
    发明申请
    METHOD AND APPARATUS FOR BACK ELECTROMOTIVE FORCE (EMF) POSITION SENSING IN A CRYOCOOLER OR OTHER SYSTEM HAVING ELECTROMAGNETIC ACTUATORS 有权
    用于电磁驱动器或具有电磁致动器的其他系统中的反电动势(EMF)位置感测的方法和装置

    公开(公告)号:US20160164446A1

    公开(公告)日:2016-06-09

    申请号:US14562591

    申请日:2014-12-05

    申请人: Raytheon Company

    IPC分类号: H02P25/02

    摘要: A method includes driving a component in an electromagnetic actuator back and forth during one or more cycles of the actuator, where the actuator includes a voice coil. The method also includes identifying a back electromotive force (EMF) voltage of the voice coil during at least one of the one or more cycles. The method further includes determining whether a stroke of the component is substantially centered using the back EMF voltage of the voice coil. In addition, the method includes, based on the determination, adjusting one or more drive signals for the voice coil during one or more additional cycles of the actuator. Determining whether the stroke of the component is centered could include determining whether the back EMF voltage of the voice coil is substantially maximized or determining whether times between extremes in the back EMF voltage are substantially equal.

    摘要翻译: 一种方法包括在致动器的一个或多个循环期间来回驱动电磁致动器中的部件,其中致动器包括音圈。 该方法还包括在一个或多个循环中的至少一个循环期间识别音圈的反电动势(EMF)电压。 该方法还包括使用音圈的反电动势电压来确定组件的笔划是否基本居中。 此外,该方法包括基于该确定,在致动器的一个或多个附加周期期间调整音圈的一个或多个驱动信号。 确定组件的行程是否居中可以包括确定音圈的反电动势电压是否基本上最大化,或者确定反电动势电压中的极值之间的时间是否基本相等。

    Device for controlling an electromagnetic valve
    43.
    发明授权
    Device for controlling an electromagnetic valve 有权
    用于控制电磁阀的装置

    公开(公告)号:US08774973B2

    公开(公告)日:2014-07-08

    申请号:US12518822

    申请日:2007-11-29

    IPC分类号: G05D7/00

    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。

    METHOD FOR CONTROLLING AN ELECTROMAGNET
    46.
    发明申请
    METHOD FOR CONTROLLING AN ELECTROMAGNET 审中-公开
    控制电磁铁的方法

    公开(公告)号:US20100019581A1

    公开(公告)日:2010-01-28

    申请号:US12508150

    申请日:2009-07-23

    IPC分类号: H01F27/42

    摘要: A method of controlling magnetic flux through an electromagnet, the magnetic force of the electromagnet or the relative position between the yoke and the armature of the electromagnet, such that from an electric voltage applied across an induction coil of the electromagnet and determined by an appropriate measurement method, and from an electric current flowing through the induction coil and also determined by an appropriate measurement method, an actual value of the magnetic flux, the magnetic force or the relative position is calculated. The determined actual value is compared with a specified nominal value and as a function of the difference between the actual and the nominal values, the voltage applied across the induction coil and/or the current flowing through the induction coil is/are adapted such that the actual magnetic flux or magnetic force or relative position value approaches the related nominal value.

    摘要翻译: 控制通过电磁体的磁通量,电磁体的磁力或磁轭与电磁体的电枢之间的相对位置的方法,使得从施加在电磁体的感应线圈上的电压并通过适当的测量确定 方法,并且从流过感应线圈的电流也通过适当的测量方法确定,计算磁通量,磁力或相对位置的实际值。 将确定的实际值与指定的标称值进行比较,并且作为实际和标称值之间的差的函数,施加在感应线圈上的电压和/或流过感应线圈的电流被适配成使得 实际磁通量或磁力或相对位置值接近相关标称值。

    Amperage control for valves
    49.
    发明申请
    Amperage control for valves 失效
    阀门安培数控制

    公开(公告)号:US20040130845A1

    公开(公告)日:2004-07-08

    申请号:US10667257

    申请日:2003-09-19

    IPC分类号: H01H047/00

    摘要: An amperage control for an electrically operated valve having a coil. A process control apparatus generates a plurality of electrical operating data signals, each signal corresponding to an operating parameter of the valve. A valve control apparatus transmits voltage to the coil of the valve to control the operation of the valve, the valve control apparatus receiving at least one operating data signal generated by the process control apparatus. A current flow is created in the coil of the valve upon receiving voltage from the valve control apparatus. A current senses the flow of current in the electrically controlled valve, and creates an electrical signal responsive to the current flow in the coil of the valve. When the signal created by the current sensing apparatus is applied to the valve control apparatus, the valve control apparatus modifies the operation of the valve responsive to the signal created by the current sensing apparatus.

    摘要翻译: 具有线圈的电动阀的安培数控制。 过程控制装置产生多个电操作数据信号,每个信号对应于阀的操作参数。 阀控制装置将电压传递到阀的线圈以控制阀的操作,阀控制装置接收由过程控制装置产生的至少一个操作数据信号。 在从阀控制装置接收电压时,在阀的线圈中产生电流。 电流感测电控阀中的电流流动,并响应于阀的线圈中的电流产生电信号。 当由电流感测装置产生的信号被施加到阀控制装置时,阀控制装置响应于由电流检测装置产生的信号来修改阀的操作。

    Method for controlling an electromechanical actuator drive
    50.
    发明申请
    Method for controlling an electromechanical actuator drive 失效
    用于控制机电致动器驱动的方法

    公开(公告)号:US20020112682A1

    公开(公告)日:2002-08-22

    申请号:US10100578

    申请日:2002-03-18

    发明人: Achim Koch

    IPC分类号: F01L009/04

    摘要: So that an actuator drive which holds an actuator element for actuating, for example, a charge cycle valve of an internal combustion engine, in a limit position by a coil, can be switched at the correct time into the other limit position, the energization of the coil is switched off a certain time period before the time at which the actuator element is to be released from the limit position. Here, the time period is selected as a function of the supply voltage of the actuator drive and/or of the coil current during the holding in the limit position. It is also possible to adapt the time period.

    摘要翻译: 因此,可以在正确的时刻将用于驱动例如内燃机的充气循环阀的致动器元件保持在线圈的极限位置的致动器驱动器被切换到另一极限位置, 在致动器元件将从限位位置释放的时间之前,线圈被切断一定时间。 这里,在保持在极限位置期间,选择时间周期作为致动器驱动器的电源电压和/或线圈电流的函数。 也可以适应时间段。