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21. 发明授权

US06801012B1 Sensorless control of switched reluctance electric machines 有权
标题翻译：开关磁阻电机的无传感器控制
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。

22. 发明授权

US09254869B2 Hand wheel position detection system 有权
标题翻译：手轮位置检测系统
公开(公告)号：US09254869B2
公开(公告)日：2016-02-09
申请号：US13554017
申请日：2012-07-20
申请人： Zaki Ryne , Keith A. Kidder , Tomy Sebastian , Carl D. Tarum , Paul M. Fisher , Christian E. Ross , Scott T. Blehm
发明人： Zaki Ryne , Keith A. Kidder , Tomy Sebastian , Carl D. Tarum , Paul M. Fisher , Christian E. Ross , Scott T. Blehm
IPC分类号： G01M17/00 , B62D15/02 , G01D5/14 , G01D3/036
CPC分类号： B62D15/0245 , B62D15/0215 , G01D3/0365 , G01D5/145
摘要： A steering system for detecting a hand wheel position is provided and includes an input shaft connected to a hand wheel, a main gear disposed around the input shaft, a puck gear meshingly engaged with the main gear, and a control module. The control module receives an angular main position of the main gear and an angular puck position of the puck gear. The control module includes a rotational calculation module for calculating the hand wheel position based on at least the angular main position and the angular puck position.
摘要翻译：提供了一种用于检测手轮位置的转向系统，包括连接到手轮的输入轴，设置在输入轴周围的主齿轮，与主齿轮啮合的圆盘齿轮以及控制模块。控制模块接收主齿轮的角主位置和圆盘齿轮的角位置。控制模块包括旋转计算模块，用于至少基于角度主位置和角位置位置来计算手轮位置。

23. 发明申请

US20140253000A1 METHOD OF CURRENT REFERENCE GENERATION FOR A MOTOR 有权
标题翻译：电动机电流参考生成方法
公开(公告)号：US20140253000A1
公开(公告)日：2014-09-11
申请号：US13792565
申请日：2013-03-11
申请人： Abraham G. Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian , Siddharth Ballal
发明人： Abraham G. Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian , Siddharth Ballal
IPC分类号： H02P21/00
CPC分类号： H02P21/28 , H02P21/00
摘要： A motor control system for determining a reference d-axis current is provided, and includes a motor, a DC power source and DC input lines, and a current command controller. The DC power source generates a bridge voltage across the DC input lines. The current command controller is in communication with the motor and the DC input lines. The current command controller is configured to monitor the bridge voltage and a torque reference command. The current command controller is configured to determine a peak current based on the torque reference command. The current command controller is configured to determine a current angle based on the peak current. The current command controller is configured to determine the reference d-axis current based on the current angle.
摘要翻译：提供了用于确定参考d轴电流的电动机控制系统，并且包括电动机，DC电源和DC输入线以及电流指令控制器。直流电源通过直流输入线产生桥电压。电流指令控制器与电机和直流输入线通信。电流指令控制器被配置为监视桥电压和转矩参考指令。电流指令控制器被配置为基于转矩参考指令确定峰值电流。当前命令控制器被配置为基于峰值电流确定当前角度。当前命令控制器被配置为基于当前角度确定参考d轴电流。

24. 发明申请

US20080024028A1 Permanent magnet electric motor 审中-公开
标题翻译：永磁电动机
公开(公告)号：US20080024028A1
公开(公告)日：2008-01-31
申请号：US11494088
申请日：2006-07-27
申请人： Mohammad S. Islam , Paul M. Fisher , Tomy Sebastian , Ramakrishnan Raja Venkitasubramony , Tom C. Wong
发明人： Mohammad S. Islam , Paul M. Fisher , Tomy Sebastian , Ramakrishnan Raja Venkitasubramony , Tom C. Wong
IPC分类号： H02K21/12 , H02K23/42 , H02K1/00
CPC分类号： H02K29/03 , H02K5/22 , H02K11/215 , H02K29/08
摘要： An electric motor for reducing torque ripple includes a rotor, a plurality of magnets positioned about the rotor, and a stator including a plurality of stator teeth configured to form at least two slot openings each having a slot opening width wo and a slot opening height ho. One or more of the stator teeth include a dummy channel having a channel height wn and a channel width wb. At least one of the slot opening width wo, the slot opening height ho, the channel height wn, and the channel width wb, are selected so as to minimize or reduce cogging torque.
摘要翻译：用于减小转矩波动的电动机包括转子，围绕转子定位的多个磁体，以及定子，其包括多个定子齿，所述定子配置成形成至少两个开槽宽度， SUB>和槽开口高度h 。一个或多个定子齿包括具有通道高度w N n N和通道宽度w B b的虚拟通道。狭槽开口宽度w 0，沟槽高度h N o，沟槽高度w N n N以及通道宽度w 选择以便最小化或减少齿槽转矩。

25. 发明授权

US06437526B1 Commutation system for torque ripple minimization 失效
标题翻译：用于转矩脉动最小化的换向系统
公开(公告)号：US06437526B1
公开(公告)日：2002-08-20
申请号：US09657887
申请日：2000-09-08
申请人： Benoit Derouane , Sunil Keshava Murthy , Tomy Sebastian , Buyun Liu
发明人： Benoit Derouane , Sunil Keshava Murthy , Tomy Sebastian , Buyun Liu
IPC分类号： H02K2908
CPC分类号： B62D5/046 , H02K29/08 , H02P6/10
摘要： A system for reducing torque ripple in an electric motor, comprising an electric motor having a stator and a rotor, a first set of N Hall sensors, a second set of N Hall sensors, a controller, and wherein said N Hall sensors in each said set of Hall sensors is spaced 360/N electrical degrees apart and said first and second sets of Hall sensors are spaced T electrical degrees apart, and wherein said controller is adapted to provide increased current during an overlap period detected by said Hall sensors.
摘要翻译：一种用于减小电动机中的转矩波动的系统，包括具有定子和转子的电动机，第一组N个霍尔传感器，第二组N个霍尔传感器，一个控制器，并且其中每个所述的N个霍尔传感器霍尔传感器组间隔开360 / N电角度，所述第一组霍尔传感器和第二组霍尔传感器间隔开T电度，并且其中所述控制器适于在由所述霍尔传感器检测到的重叠周期期间提供增加的电流。

26. 发明授权

US06380658B1 Method and apparatus for torque ripple reduction in sinusoidally excited brushless permanent magnet motors 有权
标题翻译：正弦激励无刷永磁电动机转矩波动减小的方法和装置
公开(公告)号：US06380658B1
公开(公告)日：2002-04-30
申请号：US09616720
申请日：2000-07-14
申请人： Tomy Sebastian , Sunil Keshava Murthy , Buyun Liu , Scott R Berggren
发明人： Tomy Sebastian , Sunil Keshava Murthy , Buyun Liu , Scott R Berggren
IPC分类号： H02K122
CPC分类号： H02K29/03
摘要： A method for determining a dimension in a motor is described. By applying Fourier analysis, a sequence of terms is obtained. Since the fifth harmonic is the most undesirable term, the minimization of the fifth harmonic term will make resultant waveform closer to sine wave. Based upon the above, a determination of an angle &dgr; is described, wherein the fifth harmonic term of the sequence of terms is minimized. An electric motor having a rotor and a set of slot on said rotor surface having a set of magnets with a width &dgr; along the circumference of said rotor surface is described. The width &dgr; is determined by a method that includes applying Fourier analysis thereby a sequence of terms is obtained. Since the fifth harmonic is the most undesirable term, the minimization of the fifth harmonic term will make resultant waveform closer to sine wave. Based upon the above, a determination of an angle &dgr; is described, wherein the fifth harmonic term of the sequence of terms is minimized.
摘要翻译：描述了用于确定电动机中的尺寸的方法。通过应用傅立叶分析，获得一系列术语。由于五次谐波是最不希望的术语，因此五次谐波项的最小化将使得波形接近正弦波。基于上述，描述了角度Δ的确定，其中术语序列的五次谐波项被最小化。具有转子和在所述转子表面上的一组槽的电动机具有一组具有宽度的磁体描述了沿着所述转子表面的圆周的三角形。宽度δ由包括应用傅立叶分析的方法确定，从而获得一系列术语。由于五次谐波是最不希望的术语，因此五次谐波项的最小化将使得波形接近正弦波。基于上述，描述了角度角度的确定，其中术语序列的五次谐波项被最小化。

27. 发明授权

US09172318B2 Method and system to compensate for dynamic DC offset of measured phase current 有权
标题翻译：补偿测量相电流的动态直流偏移的方法和系统
公开(公告)号：US09172318B2
公开(公告)日：2015-10-27
申请号：US13785401
申请日：2013-03-05
申请人： Abraham Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian
发明人： Abraham Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian
IPC分类号： G05B19/408 , H02P6/10 , H02P21/06
CPC分类号： H02P6/10 , H02P21/06
摘要： A motor control system for determining an offset correction value is provided. The motor control system includes a motor, an inverter, an inverter controller, and a dynamic offset compensation control module. The inverter is configured to transmit the phase current to the motor. The inverter controller determines the phase current to the motor. The dynamic offset compensation control module is in communication with the inverter controller and the motor, and is configured to perform a method at a fixed periodic interval to determine the offset correction value.
摘要翻译：提供了一种用于确定偏移校正值的电动机控制系统。电动机控制系统包括电动机，逆变器，逆变器控制器和动态失调补偿控制模块。逆变器配置为将相电流传输到电机。变频器控制器确定电机的相电流。动态偏移补偿控制模块与逆变器控制器和电动机通信，并且被配置为以固定的周期性间隔执行方法以确定偏移校正值。

28. 发明授权

US09143081B2 Motor control system having bandwidth compensation 有权
标题翻译：电机控制系统具有带宽补偿
公开(公告)号：US09143081B2
公开(公告)日：2015-09-22
申请号：US13804873
申请日：2013-03-14
申请人： Abraham Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian , Niharika P. Popy
发明人： Abraham Gebregergis , Ramakrishnan RajaVenkitasubramony , Tomy Sebastian , Niharika P. Popy
IPC分类号： H02K29/06 , H02P31/00 , H02P6/10 , H02P21/00 , H02P21/05 , B62D5/04
CPC分类号： H02P31/00 , B62D5/046 , H02P6/10 , H02P21/05 , H02P21/22 , H02P29/50
摘要： A motor control system for determining a ripple compensating current is provided. The motor control system includes a motor having a plurality of motor harmonics and a motor frequency, and a bandwidth compensation controller that is in communication with the motor. The bandwidth compensation controller is configured to determine a magnitude response compensation value and a phase compensation value for each of the plurality of motor harmonics. The magnitude response compensation value and the phase compensation value are both based on the motor frequency. The bandwidth compensation controller is configured to determine the ripple compensating current based on the magnitude response compensation value and the phase compensation value.
摘要翻译：提供了一种用于确定纹波补偿电流的电动机控制系统。电动机控制系统包括具有多个电动机谐波和电动机频率的电动机以及与电动机连通的带宽补偿控制器。带宽补偿控制器被配置为确定多个电动机谐波中的每一个的幅度响应补偿值和相位补偿值。幅度响应补偿值和相位补偿值均基于电机频率。带宽补偿控制器被配置为基于幅度响应补偿值和相位补偿值来确定纹波补偿电流。

29. 发明授权

US09136785B2 Motor control system to compensate for torque ripple 有权
标题翻译：电机控制系统补偿扭矩波动
公开(公告)号：US09136785B2
公开(公告)日：2015-09-15
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： H02K29/06 , H02P6/10 , H02P21/00 , H02P21/05 , B62D5/04
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。

30. 发明授权

US08013696B2 Magnetic apparatus and method of manufacturing the magnetic apparatus 失效
标题翻译：磁性装置及其制造方法
公开(公告)号：US08013696B2
公开(公告)日：2011-09-06
申请号：US12251143
申请日：2008-10-14
申请人： Raghunath P. Khetan , Mohammad S. Islam , Matt Mielke , Brian J. Magnus , Tomy Sebastian , Charmaine Wittig , William D. Glumm , Joe Koscielecki
发明人： Raghunath P. Khetan , Mohammad S. Islam , Matt Mielke , Brian J. Magnus , Tomy Sebastian , Charmaine Wittig , William D. Glumm , Joe Koscielecki
IPC分类号： H01F1/00
CPC分类号： B62D5/0835 , Y10T29/49405
摘要： The present invention provides for a magnetic apparatus and a method of manufacturing the magnetic apparatus including a magnet having an outer surface and an inner surface opposing each other with the inner surface having a first portion and a second portion integrally connected to and facing each other and utilizing a fluid and a fixture body defining a hole along a fixture axis and a deflector disposed within the hole. The method includes the steps of installing the magnet on the fixture body and securing the magnet to the fixture body. The method further includes the steps of flowing the fluid through the magnet transverse to the fixture axis to form at least one aperture and intersecting the fluid with the deflector to redirect the fluid generally along the fixture axis.
摘要翻译：本发明提供一种磁性装置和磁性装置的制造方法，该磁性装置包括具有彼此相对的外表面和内表面的磁体，内表面具有一体地连接并相互面对的第一部分和第二部分，利用沿着固定轴线限定孔的流体和固定体，以及设置在孔内的偏转器。该方法包括以下步骤：将磁体安装在固定装置主体上并将磁体固定到固定装置本体上。该方法还包括以下步骤：使流体流过磁体横向于固定装置轴线，以形成至少一个孔，并将流体与偏转器相交，以使流体大体上沿固定轴线重定向。

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