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1. 发明授权

US08269445B2 Limp home operational mode for an electric vehicle 有权
标题翻译： Limp家电作业模式
公开(公告)号：US08269445B2
公开(公告)日：2012-09-18
申请号：US12582534
申请日：2009-10-20
申请人： Nitinkumar R. Patel , Peter J. Savagian , Yo Chan Son , Rostam Dehmoobed Nasrabadi
发明人： Nitinkumar R. Patel , Peter J. Savagian , Yo Chan Son , Rostam Dehmoobed Nasrabadi
IPC分类号： H02K29/12
CPC分类号： H02P21/04 , B60L3/0038 , H02P21/24 , H02P29/032 , Y02T10/643
摘要： Methods and apparatus are provided for a limp home operational mode for an electric motor system. The method includes determining whether a resolver has failed. When the resolver has not failed, operation of the electric motor system uses resolver signals. When the resolver fails, operation of the electric motor system uses sensorless rotor position and rotor speed signals.
摘要翻译：提供了用于电动机系统的跛行家庭操作模式的方法和装置。该方法包括确定解析器是否失败。当解算器没有出现故障时，电机系统的运行使用分解器信号。当解算器出现故障时，电动机系统的运行使用无传感器转子位置和转子速度信号。

2. 发明授权

US08054030B2 Permanent magnet AC motor systems and control algorithm restart methods 有权
标题翻译：永磁交流电机系统和控制算法重启方法
公开(公告)号：US08054030B2
公开(公告)日：2011-11-08
申请号：US12017817
申请日：2008-01-22
申请人： Yo Chan Son , Seok-Joo Jang , Rostam Dehmoobed Nasrabadi
发明人： Yo Chan Son , Seok-Joo Jang , Rostam Dehmoobed Nasrabadi
IPC分类号： H02P21/14
CPC分类号： H02P6/185 , H02P21/32
摘要： Permanent magnet alternating current (PMAC) motor systems and methods for starting or restarting PMAC motor system sensorless control algorithms are provided. One system includes a PMAC motor including a rotor, an inverter, and a controller. The controller includes control logic, start/restart logic, drive logic, current detect logic, and estimation logic configured to estimate a position of the rotor, a speed of the PMAC motor, or both based on current detected in each phase of the inverter. A start/restart method includes determining to start/restart the sensorless control algorithm and modifying the inverter voltage in response to the determined start/restart. The method also includes detecting current in each inverter phase after the inverter voltage is modified and estimating a rotor position, a PMAC motor speed, or both based on the current detected in each inverter phase after the inverter voltage is modified. Another controller includes means for performing the above start/restart method.
摘要翻译：提供永磁交流（PMAC）电机系统以及启动或重启PMAC电机系统无传感器控制算法的方法。一个系统包括一个包括转子，逆变器和控制器的PMAC电动机。控制器包括控制逻辑，启动/重启逻辑，驱动逻辑，电流检测逻辑和估计逻辑，其被配置为基于在逆变器的每相中检测到的电流来估计转子的位置，PMAC电动机的速度或两者。启动/重启方法包括响应于确定的启动/重启来确定启动/重启无传感器控制算法并修改逆变器电压。该方法还包括在逆变器电压被修改之后检测每个逆变器相位中的电流，并且基于在逆变器电压被修改之后在每个逆变器相位中检测的电流来估计转子位置，PMAC电动机速度或两者。另一个控制器包括用于执行上述启动/重启方法的装置。

3. 发明授权

US08340848B2 Method and system for sensorless control of an electric motor 有权
标题翻译：电动机无传感器控制的方法和系统
公开(公告)号：US08340848B2
公开(公告)日：2012-12-25
申请号：US11947501
申请日：2007-11-29
申请人： Yo Chan Son , Nitinkumar R. Patel , Steven E. Schulz
发明人： Yo Chan Son , Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： B60L9/00
CPC分类号： H02P21/13 , H02P21/141 , H02P21/24
摘要： Methods and systems for controlling an electric motor are provided. A signal comprising at least first and second cycles is provided to the electric motor. A first flux value for the electric motor associated with the first cycle of the signal is calculated. A second flux value for the electric motor associated with the second cycle of the signal is calculated based on the first flux value.
摘要翻译：提供了用于控制电动机的方法和系统。包括至少第一和第二循环的信号被提供给电动机。计算与信号的第一周期相关的电动机的第一通量值。基于第一通量值计算与信号的第二周期相关联的电动机的第二通量值。

4. 发明授权

US08378605B2 Method and apparatus for monitoring a system including a sensorless electric motor 有权
标题翻译：用于监测包括无传感器电动机的系统的方法和装置
公开(公告)号：US08378605B2
公开(公告)日：2013-02-19
申请号：US12652931
申请日：2010-01-06
申请人： Wei D. Wang , Nitinkumar R. Patel , Yo Chan Son
发明人： Wei D. Wang , Nitinkumar R. Patel , Yo Chan Son
IPC分类号： H02P6/00
CPC分类号： F04B17/03 , H02P6/182 , H02P29/0241 , H02P2203/03
摘要： A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor. An initial phase angle and a rotational speed of a rotor of the electric motor are estimated. Operation of the sensorless electric motor drive control system and the electric motor are monitored using the estimated initial phase angle and the estimated rotational speed of the rotor of the electric motor. A fault in one of the sensorless electric motor drive control system and the electric motor is detected based upon the monitored operation.
摘要翻译：多相交流永磁同步电动机与致动器连接。无传感器电动机驱动控制系统控制电动机的运行。估计电动机的转子的初始相位角和转速。使用估计的初始相位角和电动机的转子的估计旋转速度监视无传感器电动机驱动控制系统和电动机的操作。基于所监视的操作来检测无传感器电动机驱动控制系统和电动机之一的故障。

5. 发明申请

US20110163704A1 METHOD AND APPARATUS FOR MONITORING A SYSTEM INCLUDING A SENSORLESS ELECTRIC MOTOR 有权
标题翻译：用于监测包括无传感电动机的系统的方法和装置
公开(公告)号：US20110163704A1
公开(公告)日：2011-07-07
申请号：US12652931
申请日：2010-01-06
申请人： Wei D. Wang , Nitinkumar R. Patel , Yo Chan Son
发明人： Wei D. Wang , Nitinkumar R. Patel , Yo Chan Son
IPC分类号： H02P6/12
CPC分类号： F04B17/03 , H02P6/182 , H02P29/0241 , H02P2203/03
摘要： A multiphase alternating current permanent magnet synchronous electric motor is coupled to an actuator. A sensorless electric motor drive control system controls operation of the electric motor. An initial phase angle and a rotational speed of a rotor of the electric motor are estimated. Operation of the sensorless electric motor drive control system and the electric motor are monitored using the estimated initial phase angle and the estimated rotational speed of the rotor of the electric motor. A fault in one of the sensorless electric motor drive control system and the electric motor is detected based upon the monitored operation.
摘要翻译：多相交流永磁同步电动机与致动器连接。无传感器电动机驱动控制系统控制电动机的运行。估计电动机的转子的初始相位角和转速。使用估计的初始相位角和电动机的转子的估计旋转速度监视无传感器电动机驱动控制系统和电动机的操作。基于所监视的操作来检测无传感器电动机驱动控制系统和电动机之一的故障。

6. 发明授权

US08487575B2 Electric motor stator winding temperature estimation 有权
标题翻译：电动机定子绕组温度估算
公开(公告)号：US08487575B2
公开(公告)日：2013-07-16
申请号：US12568002
申请日：2009-09-28
申请人： Chia-Chou Yeh , Nitinkumar R. Patel , Yo Chan Son , Steven E. Schulz
发明人： Chia-Chou Yeh , Nitinkumar R. Patel , Yo Chan Son , Steven E. Schulz
IPC分类号： G05D23/00
CPC分类号： H02P6/08 , G01R31/343 , H02P29/664
摘要： A temperature estimation controller and methods are provided for estimating stator winding temperature over a full range of motor operating speeds. In one implementation, the angular velocity of a motor is determined along with a total power loss for each phase of said motor. The total power loss in each phase comprises stator winding power loss and a core power loss. Stator winding temperatures for each phase of motor can then estimated based on the total power loss in that phase, and a combined thermal impedance for that phase. The combined thermal impedance comprises a first thermal impedance between the stator winding and the stator core, and a second thermal impedance between the stator core and the motor coolant.
摘要翻译：提供了一种温度估计控制器和方法，用于在整个电机运行速度范围内估计定子绕组温度。在一个实施方式中，确定电动机的角速度以及所述电动机的每相的总功率损耗。每相中的总功率损耗包括定子绕组功率损耗和铁芯功率损耗。然后可以根据该阶段的总功率损耗和该阶段的组合热阻抗来估计电机各相的定子绕组温度。组合的热阻抗包括定子绕组和定子铁心之间的第一热阻抗，以及定子铁芯和电动机冷却剂之间的第二热阻抗。

7. 发明授权

US08339081B2 Method and apparatus for low speed permanent magnet motor operation 有权
标题翻译：低速永磁电机运行方法及装置
公开(公告)号：US08339081B2
公开(公告)日：2012-12-25
申请号：US12558291
申请日：2009-09-11
申请人： Nitinkumar R. Patel , Yo Chan Son
发明人： Nitinkumar R. Patel , Yo Chan Son
IPC分类号： H02P6/18
CPC分类号： H02P6/185 , H02P21/04 , H02P21/24
摘要： Methods and apparatus are provided for startup of a permanent magnet alternating current (AC) motor. The method comprises the steps of detecting startup of the permanent magnet AC motor; detecting a mechanical oscillation of the permanent magnet AC motor when startup of the permanent magnet AC motor is detected; and, in response to detection of the mechanical oscillation of the permanent magnet AC motor when startup is detected, suppressing the mechanical oscillation of the permanent magnet AC motor.
摘要翻译：提供用于启动永磁交流（AC）电动机的方法和装置。该方法包括以下步骤：检测永磁体AC电动机的启动; 在检测到永久磁铁AC电动机的启动时检测永久磁铁AC电动机的机械振动; 并且响应于检测到启动时永久磁铁AC电动机的机械振动的检测，抑制了永久磁铁AC电动机的机械振动。

8. 发明授权

US08319460B2 Method and system for initiating operation of an electric motor 有权
标题翻译：电动机启动运行的方法和系统
公开(公告)号：US08319460B2
公开(公告)日：2012-11-27
申请号：US12606839
申请日：2009-10-27
申请人： Yo Chan Son , Jihoon Jang , Brian A. Welchko , Nitinkumar R. Patel , Steven E. Schulz
发明人： Yo Chan Son , Jihoon Jang , Brian A. Welchko , Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： H02P6/04
CPC分类号： H02P6/20
摘要： Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first switch of each set of switches is simultaneously activated. Current flow through the plurality of windings is measured while the first switch of each set of switches is activated. The electric motor is controlled according to a first motor control method if the measured current is below a predetermined threshold. The electric motor is controlled according to a second motor control method if the measured current is above the predetermined threshold.
摘要翻译：提供了用于控制电动机的方法和系统。马达包括多个绕组。每个绕组耦合到相应的一组第一和第二开关。每组开关的第一个开关同时被激活。当每组开关的第一开关被激活时，测量通过多个绕组的电流。如果测量电流低于预定阈值，则根据第一电动机控制方法来控制电动机。如果测量的电流高于预定阈值，则根据第二电动机控制方法来控制电动机。

9. 发明授权

US08310189B2 Position sensorless control of permanent magnet motors 有权
标题翻译：永磁电机无位置传感器控制
公开(公告)号：US08310189B2
公开(公告)日：2012-11-13
申请号：US12558257
申请日：2009-09-11
申请人： Nitinkumar R. Patel , Yo Chan Son
发明人： Nitinkumar R. Patel , Yo Chan Son
IPC分类号： H02P6/18
CPC分类号： H02P6/18 , B60K1/00 , B60K6/20 , B60L11/123 , B60L11/1807 , B60L2220/16 , B60Y2200/92 , H02P6/181 , Y02T10/6217 , Y02T10/646 , Y02T10/7005 , Y02T10/7077 , Y02T10/7258
摘要： Methods and apparatus are provided for sensorless control of a permanent magnet motor. The method includes the step of determining a sensorless position signal and a sensorless speed signal in a torque-speed plane in response to phase currents corresponding to currents on one or more of the plurality of phases.
摘要翻译：提供了用于永磁电动机的无传感器控制的方法和装置。该方法包括响应于对应于多相中的一个或多个相上的电流的相电流，确定转矩 - 速度平面中的无传感器位置信号和无传感器速度信号的步骤。

10. 发明授权

US08258736B2 Fail-safe controls for electric traction drive systems 有权
标题翻译：电力牵引驱动系统的故障安全控制
公开(公告)号：US08258736B2
公开(公告)日：2012-09-04
申请号：US12582562
申请日：2009-10-20
申请人： Nitinkumar R. Patel , Tim M. Grewe , Yo Chan Son
发明人： Nitinkumar R. Patel , Tim M. Grewe , Yo Chan Son
IPC分类号： H02P1/04
CPC分类号： H02P21/04 , B60L3/0038 , B60L3/06 , H02P21/24 , H02P29/032 , Y02T10/643
摘要： A method for operation of an internal permanent magnet motor having a rotor includes determining whether a neutral point access signal is received from the rotor and operating the internal permanent magnet motor using sensorless signals corresponding to a rotor position and a rotor speed derived by a first sensorless signal estimation method when the neutral point access signal is received, wherein the first sensorless signal estimation method utilizes the neutral point access signal to generate the rotor position and the rotor speed. The method further includes operating the internal permanent magnet motor using sensorless signals corresponding to a rotor position and a rotor speed derived by a second sensorless signal estimation method when the neutral point access signal is not received, wherein the second sensorless signal estimation method does not utilize the neutral point access signal to generate the rotor position and the rotor speed.
摘要翻译：一种具有转子的内部永磁电动机的操作方法包括：确定是否从转子接收中性点存取信号，并使用与转子位置相对应的无传感器信号和由第一无传感器导出的转子速度来操作内部永磁电动机信号估计方法，其中所述第一无传感器信号估计方法利用所述中性点存取信号来产生转子位置和转子速度。该方法还包括：当没有接收到中性点接收信号时，使用与转子位置相对应的无传感器信号和由第二无传感器信号估计方法导出的转子速度来操作内部永磁电动机，其中第二无传感器信号估计方法不利用中性点存取信号产生转子位置和转子转速。

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