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：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：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：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：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：US20080265830A1

公开(公告)日：2008-10-30

申请号：US11740061

申请日：2007-04-25

申请人： Sayeed A. Mir

发明人： Sayeed A. Mir

IPC分类号： H02P7/00

CPC分类号： B62D5/0487 ,  B62D5/0484 ,  H02P29/032

摘要： A system and a method for controlling torque of a motor are provided. The method includes modifying a phase advance angle based on an identified phase coil that has a faulted condition, a type of fault condition, and a polarity of a commanded torque to obtain a desired output torque from a motor.

摘要翻译： 提供了一种用于控制电动机的转矩的系统和方法。 该方法包括基于具有故障状态的识别的相线圈，故障状态的类型以及从电动机获得期望的输出转矩的指令转矩的极性来修改相位提前角。

公开(公告)号：US07119530B2

公开(公告)日：2006-10-10

申请号：US11052485

申请日：2005-02-04

申请人： Sayeed A. Mir ,  Paul M. Fisher ,  Daniel W. Shafer ,  Samuel J. Underwood

发明人： Sayeed A. Mir ,  Paul M. Fisher ,  Daniel W. Shafer ,  Samuel J. Underwood

IPC分类号： G01R13/14 ,  H02P5/40

CPC分类号： G01R31/343 ,  H02M7/5395 ,  H02M2001/0009

摘要： A method and system for obtaining motor current measurements from a DC bus current of an inverter that drives a pulse width modulated electric machine is disclosed. The method may include sensing a DC bus current in a sensor located on a bus of an inverter; sampling the DC bus current via an analog to digital converter wherein the sampling is controlled by sampling timing that is based on a pulse width modulation timing of the inverter; and determining three AC phase currents of the motor from the sampled DC bus current.

公开(公告)号：US06694287B2

公开(公告)日：2004-02-17

申请号：US09943260

申请日：2001-08-30

申请人： Sayeed A. Mir ,  Mark P. Colosky

发明人： Sayeed A. Mir ,  Mark P. Colosky

IPC分类号： G06F1130

CPC分类号： H02P6/08

摘要： A method and system for phase angle diagnostics in a sinusoidally excited PM electric machine, including: a controller that executes a process to facilitate the method including receiving a position value indicative of the rotational position from a position sensor configured to measure a rotor position of said electric machine and transmit a position signal; receiving a phase advance value indicative of a commanded phase advance angle; determining an expected phase voltage and expected status thereof; observing a selected phase voltage signal and determining an actual status corresponding thereto; and comparing the expected status and the actual status.

摘要翻译： 一种用于正弦激励PM电机中的相位角诊断的方法和系统，包括：控制器，其执行促进所述方法的处理，该方法包括从配置成测量所述第一转子位置的转子位置的位置传感器接收表示所述旋转位置的位置值 电机传送位置信号; 接收指示相位提前角的相位超前值; 确定预期相电压及预期状态; 观察所选择的相位电压信号并确定与之对应的实际状态; 并比较预期状况和实际状况。