公开(公告)号：US06851324B2

公开(公告)日：2005-02-08

申请号：US10319952

申请日：2002-12-16

申请人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Christian E. Ross

发明人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Christian E. Ross

IPC分类号： G01L3/10 ,  G01L3/02

CPC分类号： G01L3/105 ,  G01L3/104 ,  G01L3/109

摘要： A variable reluctance rotational displacement sensor with: an annular sleeve; a coil coaxially aligned within the sleeve; a first ring in magnetic communication with the sleeve, coaxially aligned and configured to rotate relative to the sleeve. The first ring including a first plurality of axially directed teeth arranged about a circumference of the ring on a front portion thereof. The sensor also includes a second ring in magnetic communication with the first ring and the sleeve, the second ring coaxially aligned and configured to rotate relative to the first ring and the sleeve and including a second plurality of axially directed teeth configured substantially the same as the first plurality of axially directed teeth and oriented adjacent to the first plurality of axially directed teeth on a rear portion of the second ring. The coil generates a signal responsive to a differential displacement between the first and second rings.

摘要翻译： 可变磁阻旋转位移传感器，其具有：环形套筒; 在套筒内同轴对齐的线圈; 与所述套筒磁连通的第一环，其同轴对准并构造成相对于所述套筒旋转。 第一环包括在其前部上围绕环的圆周布置的第一多个轴向定向的齿。 传感器还包括与第一环和套筒磁连通的第二环，第二环同轴对准并构造成相对于第一环和套筒旋转，并且包括第二多个轴向定向的齿，其基本上与 第一多个轴向定向的齿并且在第二环的后部上邻近第一多个轴向定向的齿定向。 线圈产生响应于第一和第二环之间的差异位移的信号。

公开(公告)号：US06801012B1

公开(公告)日：2004-10-05

申请号：US10404421

申请日：2003-03-31

申请人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Iqbal Husain

发明人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Iqbal Husain

IPC分类号： H02P146

CPC分类号： H02P25/089

摘要： A system and methodology for control of a switched reluctance electric machine comprising: a switched reluctance electric machine including a sensor generating and transmitting a sensor signal indicative of an operating characteristic; a controller operatively coupled to the switched reluctance motor and the sensor; and the controller executing a method. The method comprises: probing a selected diagnostic phase with a pulse injection process; measuring an actual operating characteristic of the switched reluctance electric machine; computing an inductance based on the actual operating characteristic and correlating the inductance with a position to formulate an estimated position; modeling the switched reluctance electric machine to formulate an observer-based estimated position; selecting at one of the estimated position, the observer-based estimated position, and a combination thereof to formulate a selected position of the switched reluctance machine; and controlling said switched reluctance machine based on said selected position and a command.

摘要翻译： 一种用于控制开关磁阻电机的系统和方法，包括：开关磁阻电机，包括产生和发送指示操作特性的传感器信号的传感器; 操作地耦合到所述开关磁阻电动机和所述传感器的控制器; 并且控制器执行方法。 该方法包括：用脉冲注射过程探测所选择的诊断相位; 测量开关磁阻电机的实际工作特性; 基于实际工作特性计算电感，并将电感与位置相关联以制定估计位置; 对开关磁阻电机进行建模，以制定基于观察者的估计位置; 选择估计位置之一，基于观察者的估计位置及其组合，以制定开关磁阻电机的选定位置; 以及基于所述选择的位置和命令来控制所述开关磁阻电机。

公开(公告)号：US06982537B2

公开(公告)日：2006-01-03

申请号：US10404420

申请日：2003-03-31

申请人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Iqbal Husain

发明人： Mohammad S. Islam ,  Sayeed A. Mir ,  Tomy Sebastian ,  Iqbal Husain

IPC分类号： H02P1/46

CPC分类号： B62D5/046 ,  H02P21/16

摘要： Disclosed herein is a method for parameter identification in a switched reluctance electric machine comprising: operating the switched reluctance electric machine in response to a desired command; and measuring an actual operating characteristic of the switched reluctance electric machine. The method also includes: modeling the switched reluctance electric machine to formulate an estimated operating characteristic based on the desired command; comparing the actual operating characteristic and the estimated operating characteristic to formulate an error there between; and determining a parameter estimate for the switched reluctance machine based on the error and a previous parameter estimate. Also disclosed herein is a system for estimating a parameter for a switched reluctance electric machine comprising: a switched reluctance electric machine including a sensor generating and transmitting a sensor signal indicative of a sensed characteristic; and a controller operatively coupled to the sensors executing the abovementioned methodology.

摘要翻译： 本文公开了一种开关磁阻电机中的参数识别方法，包括：响应于所需命令操作开关磁阻电机; 并测量开关磁阻电机的实际工作特性。 该方法还包括：对开关磁阻电机进行建模，以根据期望的指令制定估计的工作特性; 比较实际工作特性和估计的工作特性，以制定其间的误差; 以及基于所述误差和先前的参数估计来确定所述开关磁阻电机的参数估计。 本文还公开了一种用于估计开关磁阻电机的参数的系统，包括：开关磁阻电机，其包括产生和发送指示感测特性的传感器信号的传感器; 以及可操作地耦合到执行上述方法的传感器的控制器。

公开(公告)号：US06851325B2

公开(公告)日：2005-02-08

申请号：US10320328

申请日：2002-12-16

申请人： Sayeed A. Mir ,  Mohammad S. Islam ,  Tomy Sebastian

发明人： Sayeed A. Mir ,  Mohammad S. Islam ,  Tomy Sebastian

IPC分类号： G01L3/10 ,  G01L3/02

CPC分类号： B62D6/10 ,  G01L3/104 ,  G01L3/105 ,  G01L3/109

摘要： A method of detecting a sensed parameter for a motor control system comprising: receiving a sensor signal, the sensor signal exhibiting a frequency responsive to an inductance of a non-contacting variable reluctance rotational displacement sensor, wherein the inductance is indicative of a displacement of the sensor and responsive to the sensed parameter; capturing a first transition of the sensor signal and a time associated therewith; capturing a second transition of the sensor signal and a time associated therewith; calculating a period for the sensor signal; and computing a value for the sensed parameter, the value responsive to the period.

摘要翻译： 一种检测用于电机控制系统的感测参数的方法，包括：接收传感器信号，所述传感器信号呈现响应于非接触可变磁阻旋转位移传感器的电感的频率，其中所述电感表示所述传感器信号的位移 传感器并响应于感测参数; 捕获传感器信号的第一次转换和与之相关联的时间; 捕获传感器信号的第二过渡和与之相关联的时间; 计算传感器信号的周期; 并计算感测参数的值，该值响应于该周期。

公开(公告)号：US07188533B2

公开(公告)日：2007-03-13

申请号：US11102096

申请日：2005-04-08

申请人： Eric D Pattok ,  Mohammad S Islam ,  Matthew W Mielke ,  Sainan Feng ,  Ryan J Pavlawk ,  Tomy Sebastian ,  Christian E Ross

发明人： Eric D Pattok ,  Mohammad S Islam ,  Matthew W Mielke ,  Sainan Feng ,  Ryan J Pavlawk ,  Tomy Sebastian ,  Christian E Ross

IPC分类号： G01N19/08

CPC分类号： G01L3/1435 ,  G01D5/2451 ,  G01L3/101 ,  G01L5/221

摘要： An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.

摘要翻译： 用于测量第一轴和第二轴之间的相对位移的装置包括第一和第二转子组件。 第一转子组件联接到第一轴并以轴为中心。 第二转子组件联接到第二轴。 第二转子组件具有第一和第二定子板。 第一和第二定子板中的每一个包括上表面和下表面。 上表面和下表面是平行的。 第一和第二定子板包括沿轴线的径向延伸的多个齿。 第一和第二定子板在第一定子板的下表面和第二定子板的上表面之间形成间隙。 该装置还包括至少一个具有磁场并且设置在第一转子组件上的磁体和设置在间隙内的感测装置，用于感测磁场的磁通量。

公开(公告)号：US07021160B2

公开(公告)日：2006-04-04

申请号：US10795908

申请日：2004-03-08

申请人： Eric D. Pattok ,  Mohammad S. Islam ,  Matthew W. Mielke ,  Sainan Feng ,  Ryan J. Pavlawk ,  Tomy Sebastian ,  Christian E. Ross

发明人： Eric D. Pattok ,  Mohammad S. Islam ,  Matthew W. Mielke ,  Sainan Feng ,  Ryan J. Pavlawk ,  Tomy Sebastian ,  Christian E. Ross

IPC分类号： G01L3/02

CPC分类号： G01L3/1435 ,  G01D5/2451 ,  G01L3/101 ,  G01L5/221

摘要： An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.

摘要翻译： 用于测量第一轴和第二轴之间的相对位移的装置包括第一和第二转子组件。 第一转子组件联接到第一轴并以轴为中心。 第二转子组件联接到第二轴。 第二转子组件具有第一和第二定子板。 第一和第二定子板中的每一个包括上表面和下表面。 上表面和下表面是平行的。 第一和第二定子板包括沿轴线的径向延伸的多个齿。 第一和第二定子板在第一定子板的下表面和第二定子板的上表面之间形成间隙。 该装置还包括至少一个具有磁场并且设置在第一转子组件上的磁体和设置在间隙内的感测装置，用于感测磁场的磁通量。

公开(公告)号：US07298967B2

公开(公告)日：2007-11-20

申请号：US11111389

申请日：2005-04-21

申请人： Shaotang Chen ,  Sayeed A. Mir ,  Tom C. Wong ,  Christian Ross ,  Tomy Sebastian

发明人： Shaotang Chen ,  Sayeed A. Mir ,  Tom C. Wong ,  Christian Ross ,  Tomy Sebastian

IPC分类号： H02P7/29

CPC分类号： B62D5/046

摘要： A method of interfacing an electromagnetic sensor with a controller in a motor control system, the method including: applying an excitation signal to the electromagnetic sensor; receiving a first electromagnetic sensor output signal based on the excitation signal, the first electromagnetic sensor signal comprising an amplitude modulated signal corresponding to a position of a rotor of the electromagnetic sensor; and receiving a second electromagnetic sensor output signal based on the excitation signal, the second electromagnetic sensor signal comprising another amplitude modulated signal corresponding to the position of the rotor of the electromagnetic sensor. The method also includes sampling the first electromagnetic sensor signal and the second electromagnetic sensor signal at about an instance synchronous with the excitation signal to demodulate the first electromagnetic sensor signal and the second electromagnetic sensor signal and decoding a resultant of the sampling to identify the position of a rotor of the electromagnetic sensor.

摘要翻译： 一种在电动机控制系统中将电磁传感器与控制器接口的方法，所述方法包括：向所述电磁传感器施加激励信号; 基于所述激励信号接收第一电磁传感器输出信号，所述第一电磁传感器信号包括对应于所述电磁传感器的转子的位置的振幅调制信号; 并且基于所述激励信号接收第二电磁传感器输出信号，所述第二电磁传感器信号包括对应于所述电磁传感器的转子位置的另一幅度调制信号。 该方法还包括在与激励信号同步的情况下采样第一电磁传感器信号和第二电磁传感器信号，以解调第一电磁传感器信号和第二电磁传感器信号，并对采样的结果进行解码，以识别 电磁传感器的转子。

公开(公告)号：US06690135B2

公开(公告)日：2004-02-10

申请号：US10056329

申请日：2002-01-24

申请人： Sayeed A. Mir ,  Tomy Sebastian

发明人： Sayeed A. Mir ,  Tomy Sebastian

IPC分类号： G05B1128

CPC分类号： H02P6/10 ,  H02M2001/385

摘要： A method for compensating for dead time non-linearities in a pulse width modulation (PWM) controlled device including obtaining a motor data signal, generating a duty cycle of the motor voltage responsive to the motor data signal, determining a compensation value responsive to the duty cycle of the motor voltage, generating a compensated duty cycle in response to the compensation value and the duty cycle of the motor voltage and introducing the compensated duty cycle to the PWM controlled device. In addition, a medium encoded with a machine-readable computer program code for compensating for dead time non-linearities in a pulse width modulation (PWM) controlled device, the medium including instructions for causing controller to implement the aforementioned method.

摘要翻译： 一种用于补偿脉宽调制（PWM）控制装置中的死区时间非线性的方法，包括获得电动机数据信号，响应于电机数据信号产生电动机电压的占空比，根据占空比确定补偿值 电动机电压的周期，响应于电动机电压的补偿值和占空比产生补偿的占空比，并将补偿的占空比引入PWM控制器件。 另外，编码有用于补偿脉冲宽度调制（PWM）控制装置中的死区时间非线性的机器可读计算机程序代码的介质，该介质包括用于使控制器实现上述方法的指令。

公开(公告)号：US06803740B2

公开(公告)日：2004-10-12

申请号：US10280836

申请日：2002-10-25

申请人： Sayeed A. Mir ,  Tomy Sebastian

发明人： Sayeed A. Mir ,  Tomy Sebastian

IPC分类号： H02P736

CPC分类号： H02P25/092

摘要： A method for determining phase current for each of a plurality of individual phase coils of a switched reluctance machine (SRM) is disclosed. In an exemplary embodiment, the method includes determining the current passing through a first resistive element and a second resistive element in an SRM drive circuit. A conduction mode of the SRM drive circuit is determined, the conduction mode being based upon an ON/OFF state of each of a pair of switching transistors controlling current through each of the plurality of individual phase coils. The phase current through each of the plurality of individual phase coils is then calculated, based upon the conduction mode and the determined current passing through said first and second resistive elements.

摘要翻译： 公开了一种用于确定开关磁阻电机（SRM）的多个单相线圈中的每一个的相电流的方法。 在示例性实施例中，该方法包括确定通过SRM驱动电路中的第一电阻元件和第二电阻元件的电流。 确定SRM驱动电路的导通模式，导通模式基于控制通过多个单相相线圈中的每一个的电流的一对开关晶体管中的每一个的导通/截止状态。 然后基于导通模式和通过所述第一和第二电阻元件确定的电流来计算通过多个单独相线圈中的每一个的相电流。

公开(公告)号：US20140265961A1

公开(公告)日：2014-09-18

申请号：US13795578

申请日：2013-03-12

申请人： Abraham Gebregergis ,  Mohammad S. Islam ,  Tomy Sebastian ,  Mazharul H. Chowdhury ,  Shakil Hossain ,  Ramakrishnan RajaVenkitasubramony ,  Niharika P. Popy

发明人： Abraham Gebregergis ,  Mohammad S. Islam ,  Tomy Sebastian ,  Mazharul H. Chowdhury ,  Shakil Hossain ,  Ramakrishnan RajaVenkitasubramony ,  Niharika P. Popy

IPC分类号： H02P6/10

CPC分类号： H02P6/10 ,  B62D5/046 ,  H02P21/05 ,  H02P21/22 ,  H02P29/50

摘要： A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.

摘要翻译： 提供电机控制系统。 电动机控制系统包括具有多个电动机谐波的电动机和与电动机连通的转矩脉动补偿控制器。 转矩脉动补偿控制器被配置为确定多个电动机谐波中的相应一个的谐波纹波电流。 谐波纹波电流基于参考q轴电流和参考d轴电流。 扭矩纹波补偿控制器被配置为将多个电机谐波中的每一个的谐波纹波电流加在一起以确定纹波补偿电流。