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：US06549871B1

公开(公告)日：2003-04-15

申请号：US09848643

申请日：2001-05-03

申请人： Sayeed A. Mir ,  Aparna S Amberkar

发明人： Sayeed A. Mir ,  Aparna S Amberkar

IPC分类号： G01P300

CPC分类号： B62D5/046 ,  B62D5/0481

摘要： A method and system for estimating current in a PM electric machine is disclosed. The method includes acquiring a torque value representative of the torque produced by the electric machine; receiving a position value indicative of the rotational position of the electric machine; obtaining a speed value indicative of the rotational velocity of the electric machine; receiving a temperature value representative of a temperature of the electric machine; calculating an estimate of the current. Where the calculating is based upon at least one of the torque value, the position value, the speed value, and the temperature value.

摘要翻译： 公开了一种用于估计PM电机中的电流的方法和系统。 该方法包括获取代表由电机产生的扭矩的扭矩值; 接收表示所述电机旋转位置的位置值; 获得表示电机旋转速度的速度值; 接收代表电机温度的温度值; 计算当前的估计。 其中计算基于转矩值，位置值，速度值和温度值中的至少一个。

公开(公告)号：US06426602B1

公开(公告)日：2002-07-30

申请号：US09659244

申请日：2000-09-11

申请人： Roy Alan McCann ,  Sayeed A. Mir ,  Dennis B. Skellenger ,  Mark Philip Colosky

发明人： Roy Alan McCann ,  Sayeed A. Mir ,  Dennis B. Skellenger ,  Mark Philip Colosky

IPC分类号： H02P700

CPC分类号： H02P6/10 ,  B62D5/046 ,  H02P27/08

摘要： A method of minimizing the torque ripple produced by unbalanced phase currents in a sinusoidally excited motor is disclosed. The method comprises measuring the position of the motor; sampling the phase currents of the motor generating thereby at least one phase current; synchronizing the at least one phase current of the motor with the position of the motor; determining the imbalance in the magnitudes of the at least one phase current of the motor; generating a set of modulation index terms for reducing the imbalance in the magnitudes of the at least one phase current to ensure acceptable torque ripple characteristics over the operating velocity of the motor; and generating a set of minimized line-to-ground voltage commands.

摘要翻译： 公开了一种使正弦激励电动机中的不平衡相电流产生的转矩脉动最小化的方法。 该方法包括测量电动机的位置; 对由此产生的电动机的相电流进行采样至少一个相电流; 使电动机的至少一个相电流与电动机的位置同步; 确定所述电动机的所述至少一个相电流的幅度的不平衡; 产生一组用于减小所述至少一个相电流的幅度不平衡的调制指数项，以确保在所述电动机的运行速度上可接受的转矩脉动特性; 并产生一组最小化的线对地电压命令。

公开(公告)号：US07323833B2

公开(公告)日：2008-01-29

申请号：US11122687

申请日：2005-05-05

申请人： Sayeed A. Mir

发明人： Sayeed A. Mir

IPC分类号： H02P1/54 ,  H02P5/00 ,  H02P5/46

CPC分类号： H02P21/10 ,  H02P21/0089

摘要： A method and system for controlling an electric machine using voltage mode control comprising: receiving a voltage command, the voltage command corresponding to a voltage control command for a position control loop, the position control loop configured to control a position of the electric machine; receiving a motor velocity signal; and determining a q-axis current. The method also includes computing a d-axis current to supplement the torque if a magnitude of a voltage supply for exciting the electric machine is not sufficient to provide a torque corresponding to the q-axis current, otherwise establishing the d-axis current at about zero; and generating command voltages for controlling the electric machine corresponding to the q-axis current and the d-axis current.

摘要翻译： 一种使用电压模式控制来控制电机的方法和系统，包括：接收电压命令，对应于位置控制回路的电压控制指令的电压指令，所述位置控制回路被配置为控制所述电机的位置; 接收电机速度信号; 并确定q轴电流。 该方法还包括计算d轴电流以补充转矩，如果用于激励电机的电压供应的幅度不足以提供与q轴电流相对应的转矩，否则在约 零; 并产生用于控制对应于q轴电流和d轴电流的电机的指令电压。

公开(公告)号：US06653829B1

公开(公告)日：2003-11-25

申请号：US09661944

申请日：2000-09-14

申请人： Rassem Ragheb Henry ,  Sayeed A. Mir

发明人： Rassem Ragheb Henry ,  Sayeed A. Mir

IPC分类号： G01B714

CPC分类号： G01P3/48 ,  G01D5/2451 ,  H02K29/03 ,  H02K29/08 ,  H02P6/10 ,  H02P6/182

摘要： A method for measuring a rotary position of an electric machine includes read a pulse counter that counts a sequence of pulses. The sequence of pulses is related to the rotary position. A determination as to whether a new pulse has been detected is performed. And a computation of a new angle that is related to the rotary position. A speed measuring circuit that includes an input having a set of position signals and an output having a set of speed signals may include the method for measuring a rotary position of an electric machine.

摘要翻译： 用于测量电机的旋转位置的方法包括读取脉冲序列的脉冲计数器。 脉冲序列与旋转位置有关。 确定是否检测到新的脉冲。 以及与旋转位置相关的新角度的计算。 包括具有一组位置信号的输入和具有一组速度信号的输出的速度测量电路可以包括用于测量电机的旋转位置的方法。

公开(公告)号：US07839106B2

公开(公告)日：2010-11-23

申请号：US12042786

申请日：2008-03-05

申请人： Sayeed A. Mir

发明人： Sayeed A. Mir

IPC分类号： H02P21/00

CPC分类号： H02P21/14

摘要： A method for controlling motor, the method including, receiving a motor torque command, calculating a first current associated with the motor torque command, calculating an estimated first current responsive to receiving a first regulated voltage associated with the first current and a motor speed signal, subtracting the estimated first current from the first current resulting in a first current error signal, and outputting the first regulated voltage to a voltage controller responsive to receiving the first current error signal, the estimated first current, and the motor speed signal.

摘要翻译： 一种用于控制电动机的方法，所述方法包括：接收电动机转矩指令，计算与所述电动机转矩指令相关联的第一电流，响应于接收到与所述第一电流相关联的第一调节电压和电动机速度信号来计算估计的第一电流， 从第一电流减去估计的第一电流导致第一电流误差信号，并且响应于接收到第一电流误差信号，估计的第一电流和电动机速度信号，将第一调节电压输出到电压控制器。

公开(公告)号：US20090224710A1

公开(公告)日：2009-09-10

申请号：US12042786

申请日：2008-03-05

申请人： Sayeed A. Mir

发明人： Sayeed A. Mir

IPC分类号： H02P6/08

CPC分类号： H02P21/14

摘要： A method for controlling motor, the method including, receiving a motor torque command, calculating a first current associated with the motor torque command, calculating an estimated first current responsive to receiving a first regulated voltage associated with the first current and a motor speed signal, subtracting the estimated first current from the first current resulting in a first current error signal, and outputting the first regulated voltage to a voltage controller responsive to receiving the first current error signal, the estimated first current, and the motor speed signal.

摘要翻译： 一种用于控制电动机的方法，所述方法包括：接收电动机转矩指令，计算与所述电动机转矩指令相关联的第一电流，响应于接收到与所述第一电流相关联的第一调节电压和电动机速度信号来计算估计的第一电流， 从第一电流减去估计的第一电流导致第一电流误差信号，并且响应于接收到第一电流误差信号，估计的第一电流和电动机速度信号，将第一调节电压输出到电压控制器。

公开(公告)号：US07065437B2

公开(公告)日：2006-06-20

申请号：US10645118

申请日：2003-08-21

申请人： Sayeed A. Mir ,  Yulei Chen

发明人： Sayeed A. Mir ,  Yulei Chen

IPC分类号： B62D6/00

CPC分类号： B62D5/046 ,  H02P23/0004 ,  H02P29/032

摘要： A method and apparatus for limiting current and voltage in a PM electric machine comprising: receiving a command indicative of a desired position control; obtaining a velocity value indicative of the rotational velocity of the electric machine; and computing a first voltage threshold for the electric machine based on a selected operating condition. If the voltage command exceeds the first voltage threshold, the method also includes establishing a modified voltage command as substantially equivalent to the first voltage threshold, otherwise establishing a modified voltage command as substantially equivalent to the voltage command.

摘要翻译： 一种用于限制PM电机中的电流和电压的方法和装置，包括：接收指示期望位置控制的指令; 获得表示电机转速的速度值; 以及基于所选择的操作条件计算所述电机的第一电压阈值。 如果电压指令超过第一电压阈值，则该方法还包括建立与第一电压阈值基本相等的修正电压指令，否则建立修改的电压指令，基本上等于电压指令。