公开(公告)号：US20240258005A1

公开(公告)日：2024-08-01

申请号：US18560622

申请日：2022-03-11

申请人： BOSCH CORPORATION

发明人： Takashi Nonoyama

IPC分类号： H01F7/18 ,  F02D41/00

CPC分类号： H01F7/1844 ,  F02D41/004 ,  H01F2007/1866

摘要： Provided is a purge valve driving control device capable of detecting abnormality by utilizing an existing circuit as much as possible while securing resolution and accuracy of solenoid resistance value detection. A battery voltage is applied to one end of a solenoid 1a through a first connection terminal 3a, and the other end is connected to a second connection terminal 3b. In a driver circuit 120, a drive transistor 4 and a shunt resistor 5 are connected in series between the second connection terminal 3b and a ground, and an overcurrent detection circuit 11 that enables detection of occurrence of an overcurrent in the drive transistor 4 on the basis of a voltage of the shunt resistor 5 is provided, and a microcomputer 110 is configured to be able to determine presence or absence of occurrence of battery short-circuit equivalent to an electrical short-circuit state of the first connection terminal 3a and the second connection terminal 3b on the basis of an output of the overcurrent detection circuit 11.

公开(公告)号：US20180350497A1

公开(公告)日：2018-12-06

申请号：US15776739

申请日：2016-11-10

申请人： ZF Friedrichshafen AG

发明人： Paul Bange ,  Thomas Maier ,  Gerald Kolar ,  Mohammad Kabany ,  Andreas Hof

IPC分类号： H01F7/18 ,  H01F7/06

CPC分类号： H01F7/1844 ,  H01F7/064 ,  H01F2007/1855 ,  H01F2007/1866

摘要： A method for determining a current that flows through a load, wherein the current comprises a DC component and a dithering component, and the dithering component is modified in predetermined time intervals, comprises steps for recording a momentary current; determining a dithering parameter; and determining the current based on the momentary current and the dithering parameter.

公开(公告)号：US20160266600A1

公开(公告)日：2016-09-15

申请号：US15066165

申请日：2016-03-10

申请人： Robert Bosch GmbH

发明人： Torsten Bertram ,  Ingo Glowatzky ,  Christoph Krimpmann ,  Georg Schoppel

IPC分类号： G05G1/02 ,  G05B15/02

CPC分类号： H01F7/1844 ,  F15B13/0442 ,  H01F2007/1866

摘要： The disclosure relates to a method for determining a switching function for a sliding mode controller for controlling a controlled variable of a system, the switching function being selected as a function of a control deviation of the controlled variable and its time derivatives up to at least the second order and on the basis of initial control dynamics of the system, coefficients of the switching function being represented by means of poles of a closed control loop of the system, the poles each being selected as a function of the control deviation, and desired control dynamics of the system being set by shifting at least one first pole of the poles, and to such a sliding mode controller and to a use of such a controller.

摘要翻译： 本公开涉及一种用于确定用于控制系统的受控变量的滑动模式控制器的切换功能的方法，所述切换功能被选择为所述受控变量的控制偏差及其时间导数至少为 第二阶段，并且基于系统的初始控制动力学，开关功能的系数由系统的闭合控制回路的极点表示，每个极被选择为控制偏差的函数，并且期望的控制 通过移动极点的至少一个第一极点和这种滑动模式控制器以及使用这种控制器来设定系统的动力学。

公开(公告)号：US07917310B2

公开(公告)日：2011-03-29

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： G06F11/30 ,  G21C17/00

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 includes an electromagnetic actuator arranged to move the valve between first and second valve positions, the engine system includes a sensor for sensing a current through the actuator. The detector includes a controller arranged to control the sensor; receive sensor data related to the current through the actuator; analyze the received data for current discontinuities; and output a valve movement signal dependent upon the current discontinuities. The controller is arranged to sense current during a finite sampling window, move the sampling window from a first window position to a later window position for one or more subsequent injection events; determine a new sampling window position on based a valve movement signal output the two preceding windows; and 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通过所述致动器的电流的传感器 。 检测器包括控制器，用于控制传感器; 接收与通过执行器的电流相关的传感器数据; 分析收到的当前不连续数据; 并输出取决于当前不连续性的阀门运动信号。 控制器被布置成在有限采样窗口期间感测电流，将采样窗口从第一窗口位置移动到稍后的窗口位置，用于一个或多个后续的注入事件; 基于两个前面的窗口输出阀门运动信号来确定新的采样窗口位置; 并反馈新的采样窗口位置用于随后的喷射事件。

公开(公告)号：US07746620B2

公开(公告)日：2010-06-29

申请号：US12036003

申请日：2008-02-22

申请人： John Bedingfield

发明人： John Bedingfield

IPC分类号： H01H9/00

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。

公开(公告)号：US07667446B2

公开(公告)日：2010-02-23

申请号：US11652344

申请日：2007-01-11

申请人： Kyle Williams ,  Joseph Funyak

发明人： Kyle Williams ,  Joseph Funyak

IPC分类号： G05F1/575 ,  G05F1/56

CPC分类号： G05F5/00 ,  H01F2007/1866

摘要： One embodiment relates to a control system. The control system includes a controller configured to drive a load based on a set-point of the load. The controller is also configured to measure a load characteristic of the load and compute an average load characteristic. The controller is further configured to determine a corrected set-point based on the computed average and to drive the load in response to the corrected set-point. Other systems and methods are also disclosed.

摘要翻译： 一个实施例涉及一种控制系统。 控制系统包括控制器，其被配置为基于负载的设定点来驱动负载。 控制器还被配置为测量负载的负载特性并计算平均负载特性。 控制器还被配置为基于所计算的平均值来确定校正的设定点，并且响应于校正的设定点来驱动负载。 还公开了其它系统和方法。

公开(公告)号：US20090213520A1

公开(公告)日：2009-08-27

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： H01H47/32 ,  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：US20060171091A1

公开(公告)日：2006-08-03

申请号：US11149343

申请日：2005-06-09

申请人： Joseph Seale ,  Gary Bergstrom

发明人： Joseph Seale ,  Gary Bergstrom

IPC分类号： H01H47/00

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 actuation of a pump piston and valves, electronic LC 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LC共振测量确定液体体积和气泡体积。

公开(公告)号：US07023682B2

公开(公告)日：2006-04-04

申请号：US10756442

申请日：2004-01-12

申请人： Thomas Dovheim

发明人： Thomas Dovheim

IPC分类号： H01H9/00

CPC分类号： H01H47/325 ,  F01L9/04 ,  F02D41/20 ,  F02D2041/2017 ,  F02D2041/2031 ,  F02D2041/2041 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2041/2075 ,  H01F2007/1866

摘要： In a vehicle fuel-injection system, additional voltage is applied to an otherwise current-controlled valve solenoid so as to increase the time window over which freewheeling current in the solenoid decreases from a pull-in level to a hold level. The time during which the Beginning of Injection Pulse (BIP) signal is detected is thereby increased.

摘要翻译： 在车辆燃料喷射系统中，额外的电压被施加到另外的电流控制的阀螺线管，以便增加螺线管中的续流电流从拉入电平降低到保持电平的时间窗。 因此，检测出注入脉冲（BIP）开始的时间增加。

公开(公告)号：US06798635B2

公开(公告)日：2004-09-28

申请号：US09919689

申请日：2001-07-30

申请人： Johan Olsson

发明人： Johan Olsson

IPC分类号： H01H4700

CPC分类号： H01F7/1844 ,  H01F2007/1684 ,  H01F2007/1866

摘要： The invention relates to a method for driving and measuring the position of an electromagnetic actuator that operates according to the voice coil principle. The coil thus moves within a magnetized gap relative to permanent magnet core. As the coil extends partially outside of the core, its inductance will change. The voice coil is connected to a controllable current source that can both generate and control an average current and an AC component through the voice coil. The frequency of the AC component is measured, and is a function of the instantaneous inductance of coil, which in turn is a function of the coil's position relative to the core. In an alternative embodiment, the phase shift between an AC current and an AC voltage through the coil is analyzed to determine the position of the coil, while simultaneously controlling the force.

摘要翻译： 本发明涉及一种用于驱动和测量根据音圈原理操作的电磁致动器的位置的方法。 因此线圈相对于永磁铁芯在磁化间隙内移动。 当线圈部分地延伸到芯的外部时，其电感将改变。 音圈连接到可控电流源，可以通过音圈产生和控制平均电流和AC分量。 测量交流分量的频率，并且是线圈的瞬时电感的函数，这又是线圈相对于磁芯的位置的函数。 在替代实施例中，分析AC电流和通过线圈的AC电压之间的相移，以确定线圈的位置，同时控制力。