公开(公告)号：US06411052B1

公开(公告)日：2002-06-25

申请号：US09655582

申请日：2000-09-06

申请人： Sayeed A. Mir ,  Abbas Fardoun ,  Shaotang Chen

发明人： Sayeed A. Mir ,  Abbas Fardoun ,  Shaotang Chen

IPC分类号： H02K1732

CPC分类号： H02P6/10 ,  H02P6/34

摘要： An apparatus and method are described for adjusting the modeled resistance used in the control of an electric motor drive to match the actual resistance of the motor. The system comprises sensors for measuring motor current and motor speed, which data is inputted into a processing unit. The processor uses the measured rotational speed to calculate what the proper current should be based upon the torque desired. If the calculated current is not equal to the measured current, then the modeled resistance of the motor is altered to correct the current. The invention is particularly useful for permanent magnet brushless motors operating in voltage mode.

摘要翻译： 描述了一种用于调节在电动机驱动器的控制中使用的建模电阻以匹配电动机的实际电阻的装置和方法。 该系统包括用于测量电动机电流和电动机速度的传感器，该数据被输入到处理单元中。 处理器使用测量的转速来计算基于所需扭矩的适当电流值。 如果计算出的电流不等于测量电流，则改变电机的建模电阻以校正电流。 本发明对于在电压模式下工作的永磁无刷电动机特别有用。

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：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：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：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：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。

公开(公告)号：US06441578B1

公开(公告)日：2002-08-27

申请号：US09652237

申请日：2000-08-31

申请人： Sayeed A. Mir ,  Dennis B. Skellenger

发明人： Sayeed A. Mir ,  Dennis B. Skellenger

IPC分类号： G05B1128

CPC分类号： G05B11/28 ,  B62D5/046

摘要： An exemplary embodiment of the invention is a method of controlling a motor in an electric power steering system. The method includes obtaining a motor control signal having an initial duty cycle and linearizing the initial duty cycle to obtain a secondary duty cycle. An offset is added to the secondary duty cycle to obtain an adjusted duty cycle. The motor is controlled using the adjusted duty cycle. An alternative embodiment is a torque linearization device for linearizing torque produced by a motor in response to a motor control signal having an initial duty cycle. The torque linearization device includes a comparator for receiving the initial duty cycle and comparing the initial duty cycle to a threshold. A linearization table converts the initial duty cycle to a linearized duty cycle. A selector receives the initial duty cycle and the linearized duty cycle and selects one of the initial duty cycle and the linearized duty cycle as a secondary duty cycle in response to the comparing.

摘要翻译： 本发明的示例性实施例是一种在电动助力转向系统中控制电动机的方法。 该方法包括获得具有初始占空比的电机控制信号并使初始占空比线性化以获得次占空比。 在二次占空比中增加偏移量以获得调整的占空比。 使用调整的占空比控制电机。 替代实施例是用于响应于具有初始占空比的电动机控制信号线性化由电动机产生的转矩的扭矩线性化装置。 扭矩线性化装置包括用于接收初始占空比并将初始占空比与阈值进行比较的比较器。 线性化表将初始占空比转换为线性化占空比。 选择器接收初始占空比和线性化占空比，并响应于比较选择初始占空比和线性化占空比中的一个作为辅助占空比。

公开(公告)号：US07538514B2

公开(公告)日：2009-05-26

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： H02P23/00

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：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。