公开(公告)号：US20110025235A1

公开(公告)日：2011-02-03

申请号：US12844367

申请日：2010-07-27

申请人： Fabrizio Marignetti ,  Giovanni Tomassi ,  Enzo De Santis

发明人： Fabrizio Marignetti ,  Giovanni Tomassi ,  Enzo De Santis

IPC分类号： H02K33/00

CPC分类号： H01F7/1844 ,  H01F2007/1866

摘要： In an electromagnetic actuator, which comprises a stator, a translator movable along a guiding element, and an excitation coil for generating an electromagnetic force which moves the translator, the coil is supplied with an electric current obtained according to the sum of a first electric signal, the time pattern of which defines a desired motion of the translator, with a second electric signal, which is generated only at each of given level variations of the first electric signal by modulating an oscillating function with a decreasing, time limited function, so that the second signal has an amplitude envelope having a certain maximum width such that the electromagnetic force is subjected to a higher increase of the static friction force between the translator and the guiding element.

摘要翻译： 在包括定子的电磁致动器中，可沿导向元件移动的平移器和用于产生使平移器移动的电磁力的励磁线圈，线圈被提供根据第一电信号 ，其时间模式通过利用减小的时间限制功能调制振荡功能而仅在每个第一电信号的给定电平变化中产生的第二电信号限定翻译器的期望运动，使得 第二信号具有一定的最大宽度的幅度包络，使得电磁力受到平移器和引导元件之间的静摩擦力的较高增加。

公开(公告)号：US07782590B2

公开(公告)日：2010-08-24

申请号：US12035998

申请日：2008-02-22

申请人： John Bedingfield ,  Rodolfo Roger

发明人： John Bedingfield ,  Rodolfo Roger

IPC分类号： H01H47/00

CPC分类号： H01F7/1805 ,  H01F7/1844 ,  H01F2007/1855 ,  H01F2007/1866 ,  H01F2007/1888 ,  H01F2007/1894

摘要： An electromechanical solenoid control system with reduced hold current includes an electromechanical solenoid including an armature and a coil; a voltage source; a resistor placed in an electrical line between the voltage source and the solenoid coil; 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, the control element operable to receive a signal from the electrical line and use the signal to control the switching device to selectively apply power from the voltage source to the solenoid coil.

摘要翻译： 具有减小的保持电流的机电电磁控制系统包括包括电枢和线圈的机电螺线管; 电压源; 放置在电压源和电磁线圈之间的电线中的电阻器; 开关装置，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; 以及控制元件，其与所述开关装置电连接，所述控制元件可操作以从所述电线接收信号，并且使用所述信号来控制所述开关装置以选择性地将所述电压源的电力施加到所述螺线管线圈。

公开(公告)号：US20090201111A1

公开(公告)日：2009-08-13

申请号：US12358172

申请日：2009-01-22

申请人： Alexei V. Filatov

发明人： Alexei V. Filatov

IPC分类号： H01F7/00

CPC分类号： H01F7/1615 ,  F16C32/0444 ,  F16C32/0465 ,  F16C32/0476 ,  F16C32/048 ,  F16C32/0489 ,  H01F7/081 ,  H01F7/18 ,  H01F7/1872 ,  H01F2007/1866 ,  H02P6/16

摘要： An electromagnetic actuator with flux feedback control includes two poles located on opposite sides of a soft-magnetic target. A bias flux is introduced that flows into both poles. Magnetic circuitry may be designed so that the total bias flux is independent or substantially independent of a position of the target with respect to the poles or the control flux. The electromagnetic actuator also includes flux sensors introduced into each gap between the poles and the target. The electromagnetic actuator further includes an actuator control circuit to command the current in the control coil to bring a difference between the readings of the two flux sensors to a targeted level. In some aspects, the force exerted on the actuator target in this arrangement may be proportional to the command signal regardless of the position of the actuator target, MMF drop in the soft-magnetic parts of the magnetic circuit, or the frequency.

摘要翻译： 具有磁通反馈控制的电磁致动器包括位于软磁靶的相对侧上的两个极。 引入流入两极的偏置通量。 磁路可以被设计成使得总偏置通量是独立的或基本上独立于目标相对于极点或控制通量的位置。 电磁致动器还包括引入磁极和靶之间的每个间隙的磁通传感器。 电磁致动器还包括致动器控制电路，用于指令控制线圈中的电流，以使两个通量传感器的读数之间的差异达到目标水平。 在一些方面中，在这种布置中施加在致动器目标上的力可以与命令信号成比例，而与执行器目标的位置，磁路的软磁部分中的MMF下降或频率无关。

公开(公告)号：US20090132180A1

公开(公告)日：2009-05-21

申请号：US12291672

申请日：2008-11-12

申请人： Daniel A. Pearce ,  Anthony Thomas Harcombe

发明人： Daniel A. Pearce ,  Anthony Thomas Harcombe

IPC分类号： G01B5/28

CPC分类号： F02D41/20 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2250/14 ,  H01F2007/1855 ,  H01F2007/1866 ,  H01F2007/1888

摘要： A fault detector for detecting valve movement of a valve in a fuel injector of an engine system, the valve comprising an electromagnetic actuator arranged to move the valve between first and second valve positions during a valve cycle, the engine system comprising a sensor for sensing a current through the actuator. The detector comprises a controller arranged to control the sensor; inputs for receiving from the sensor data related to the current through the actuator; a processor arranged to analyze the received data for current discontinuities; and outputs for outputting a valve movement signal in dependence upon the current discontinuities determined by the processor. The controller is arranged to enable the sensing means during a finite sampling window and to: (i) move the sampling window from a first window position for a first injection event to a progressively later window position for one or more subsequent injection events; (ii) to determine a new sampling window position on the basis of a valve movement signal output for at least two of the preceding window positions; and (iii) to feedback the new sampling window position for a subsequent injection event.

摘要翻译： 一种用于检测发动机系统的燃料喷射器中的阀的阀移动的故障检测器，所述阀包括电磁致动器，所述电磁致动器被布置成在阀循环期间在第一和第二阀位置之间移动所述阀，所述发动机系统包括用于感测 电流通过执行机构。 检测器包括控制器，用于控制传感器; 用于从传感器接收与通过致动器的电流有关的数据的输入; 处理器，被布置为分析所接收的数据用于当前的不连续性; 并且输出用于根据由处理器确定的当前不连续性来输出阀移动信号。 控制器被布置成使得在有限采样窗口期间能够感测装置，并且：（i）将采样窗口从用于第一喷射事件的第一窗口位置移动到用于一个或多个后续喷射事件的逐渐更新的窗口位置; （ii）基于针对前述窗口位置中的至少两个的阀移动信号输出来确定新的采样窗口位置; 和（iii）反馈新的采样窗口位置用于随后的喷射事件。

公开(公告)号：US06661636B2

公开(公告)日：2003-12-09

申请号：US10100578

申请日：2002-03-18

申请人： Achim Koch

发明人： Achim Koch

IPC分类号： H01H900

CPC分类号： H01F7/18 ,  F01L9/04 ,  F01L2009/0496 ,  F01L2201/00 ,  H01F2007/1866

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.

公开(公告)号：US20180328303A1

公开(公告)日：2018-11-15

申请号：US15975357

申请日：2018-05-09

申请人： MAGNETI MARELLI S.p.A.

发明人： Matteo De Cesare ,  Enrico Brugnoni ,  Nicola Torcolini ,  Federico Monti

IPC分类号： F02D41/24 ,  F02M37/08 ,  F02M37/04 ,  F04B49/06 ,  F02D41/22

CPC分类号： F02D41/2464 ,  F02D41/20 ,  F02D41/221 ,  F02D41/3845 ,  F02D2041/2037 ,  F02D2041/224 ,  F02D2200/025 ,  F02M37/043 ,  F02M37/08 ,  F04B49/065 ,  H01F7/1844 ,  H01F2007/1855 ,  H01F2007/1866

摘要： A method is described to control an actuation profile of an electromechanical linear actuator device of an internal combustion engine designed to control the movement of a component; the internal combustion engine comprises a sensor, which faces the actuator device and is designed to detect the noise generated by the movement of the component; the method comprises the steps of acquiring, by means of the sensor, the intensity of a signal generated by the impact of the component against a limit stop; identifying a first listening window of the signal associated with said impact; calculating a noise index inside the listening window; comparing the noise index with a reference value; and controlling the actuation profile of the actuator device based on this comparison.

公开(公告)号：US20170350535A1

公开(公告)日：2017-12-07

申请号：US15466812

申请日：2017-03-22

申请人： Noel Jordan Jameson ,  Michael G. Pecht

发明人： Noel Jordan Jameson ,  Michael G. Pecht

IPC分类号： F16K37/00 ,  G01R31/06 ,  F16K31/06 ,  F16H61/12 ,  G01R31/28 ,  G01R19/25

CPC分类号： F16K37/0075 ,  F16H61/12 ,  F16H2061/1216 ,  F16H2061/1264 ,  F16K31/0675 ,  F16K37/0083 ,  G01R19/2506 ,  G01R23/16 ,  G01R31/06 ,  G01R31/2829 ,  H01F7/1607 ,  H01F7/1844 ,  H01F2007/1866 ,  H01F2007/1894

摘要： This invention provides two methods for detecting mechanical or electrical faults in a solenoid valve. In the first method, a force sensor is placed in the valve in such a way as to detect changes in the impact force of the plunger against the solenoid valve body or coil housing (depending upon the direction of movement of the plunger upon application of the electric current/magnetic field). A second method is provided which makes use of an accelerometer placed in such a way as to detect changes in the response of the plunger to the application of the magnetic field.

公开(公告)号：US20170222428A1

公开(公告)日：2017-08-03

申请号：US15412002

申请日：2017-01-21

申请人： LSIS CO., LTD.

发明人： Jaehyuk CHOI

IPC分类号： H02H7/22 ,  H01H47/32

CPC分类号： H02H7/222 ,  F02D41/20 ,  F02D2041/2027 ,  F02D2041/2044 ,  F02D2041/2065 ,  H01F7/1844 ,  H01F2007/1866 ,  H01F2007/1888 ,  H01H47/002 ,  H01H47/325 ,  H01H2047/025

摘要： The magnetic coil driving circuit of the magnetic contactor according to the present invention comprises a semiconductor switch configured to open or close a circuit for magnetizing or demagnetizing a magnetic coil; a pulse width modulation unit configured to output a pulse signal as a control signal for turning on or off the semiconductor switch; a control unit configured to output a control signal for changing a pulse width of the pulse signal to the pulse width modulation unit; and a temperature detection and protection unit configured to detect a temperature inside the magnetic contactor, output an output signal for turning off the semiconductor switch when the temperature exceeds an allowable temperature, and control the semiconductor switch by the pulse signal from the pulse width modulation unit when the temperature is within the allowable temperature.

公开(公告)号：US09671032B2

公开(公告)日：2017-06-06

申请号：US14520963

申请日：2014-10-22

申请人： FLEXTRONICS AP, LLC

发明人： Andrew Robert Castora ,  Hamid Najmolhoda ,  David Lee Seid

IPC分类号： F16H61/02 ,  F16K31/06 ,  H01F7/18 ,  G05B17/02 ,  G05D7/06 ,  B60T8/36

CPC分类号： F16K31/061 ,  B60T8/36 ,  B60T2260/04 ,  G05B17/02 ,  G05D7/0635 ,  H01F7/1844 ,  H01F2007/1855 ,  H01F2007/1866

摘要： A method for characterizing a fluid control solenoid with current compensation is described. A current command is sent to the fluid control solenoid. The current command indicates a desired current value related to a desired fluid output pressure to be applied to the solenoid. An actual fluid output pressure is measured at a valve associated with the fluid control solenoid for the desired current value applied to the solenoid. An actual current received value at the fluid control solenoid is also measured. Post processing is then applied. A compensated current value related to the actual fluid output pressure is determined based on a difference between the current command and the actual current received value. Methods for dynamic current compensation are also described.

公开(公告)号：US20170062110A1

公开(公告)日：2017-03-02

申请号：US15041205

申请日：2016-02-11

申请人： Mitsubishi Electric Corporation

发明人： Shuichi MATSUMOTO ,  Masato NAKANISHI ,  Shingo IGUCHI ,  Hiroyuki ARITA ,  Tomoaki OGATA

IPC分类号： H01F7/06

CPC分类号： H01F7/064 ,  F02D41/1408 ,  H01F7/1844 ,  H01F2007/1866

摘要： In the dither current power supply control method, in order to prevent occurrence of a difference between the target average current and the detected average current, which is caused when a medium current (I0) between a dither large current (I2) and a dither small current (I1) and a waveform average (Ia) of the dither current are different from each other depending on a response time difference (a−b) between a rise time (b) and a fall time (a) of the dither current, negative feedback control is carried out by using a command medium current corresponding to the target average current corrected by a correction parameter based on experimentally measured data, thereby suppressing occurrence of a transient fluctuation error by the negative feedback control, so that a highly precise and stable load current is acquired.

摘要翻译： 在抖动电流电源控制方法中，为了防止在抖动大电流（I2）和抖动小的电流（I0）之间引起的目标平均电流和检测到的平均电流之间的差异的发生 根据抖动电流的上升时间（b）和下降时间（a）之间的响应时间差（a-b），抖动电流的电流（I1）和波形平均值（Ia）彼此不同， 通过使用与基于实验测量数据的校正参数校正的目标平均电流相对应的指令介质电流进行负反馈控制，从而通过负反馈控制来抑制瞬态波动误差的发生，从而高精度且稳定 获取负载电流。