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91. 发明授权

US06924617B2 Position sensorless control algorithm for AC machine 有权
标题翻译：交流电机无位置传感器控制算法
公开(公告)号：US06924617B2
公开(公告)日：2005-08-02
申请号：US10601726
申请日：2003-06-23
申请人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Seung Ki Sul , Bon-Ho Bae
发明人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Seung Ki Sul , Bon-Ho Bae
IPC分类号： H02P6/18 , H02P21/00 , H02P1/46 , G05B11/42 , H02P1/18
CPC分类号： H02P6/18 , H02P6/181 , H02P21/00 , H02P21/0089 , H02P21/12 , H02P21/28 , H02P2203/05 , H02P2207/05
摘要： A control system for an electric motor having a stator and rotor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a low speed control block to estimate the rotor angular position using stator current components operating in the controller, a high speed control block to estimate the rotor angular position using stator current components and stator flux position operating in the controller, a transition switch in the controller to vary operation between the low speed control block and the high speed control block, and where the inverter is controlled by six step operation.
摘要翻译：一种具有定子和转子的电动机的控制系统，该定子和转子包括用于向电动机供电的逆变器，用于控制逆变器的控制器，使用在控制器中操作的定子电流分量来估计转子角位置的低速控制块，高速控制块，用于使用定子电流分量和在控制器中操作的定子磁通位置来估计转子角位置，控制器中的转换开关改变低速控制块和高速控制块之间的操作，并且其中变频器由六步操作控制。

92. 发明授权

US6154381A High efficiency power system with plural parallel DC/DC converters 有权
标题翻译：具有多个并联DC / DC转换器的高效率电力系统
公开(公告)号：US6154381A
公开(公告)日：2000-11-28
申请号：US345278
申请日：1999-06-30
申请人： Lateef A. Kajouke , Steven E. Schulz
发明人： Lateef A. Kajouke , Steven E. Schulz
IPC分类号： H02J1/10 , H02M3/158 , H02M3/00
CPC分类号： B60L1/00 , H02J1/102 , H02M3/1584 , B60L2270/147
摘要： A distributed staged power system for use in electric and hybrid electric vehicles, and the like. The system comprises a plurality of parallel DC-to-DC power modules that are controlled by way of input and output control signal interfaces using a smart controller. The distributed staged power system provides higher efficiency because of smart staging of the power modules. The distributed staged power system enables or disables each of the modules as determined by a smart controller to provide the highest possible conversion efficiency.
摘要翻译：用于电动和混合动力电动车辆的分布式电力系统等。该系统包括多个并行DC-DC电源模块，其通过使用智能控制器的输入和输出控制信号接口来控制。分布式电力系统由于电源模块的智能分级而提供更高的效率。分布式电力系统启用或禁用由智能控制器确定的每个模块，以提供最高的转换效率。

93. 发明授权

US08983788B2 System and method of measuring a sensor offset 有权
标题翻译：测量传感器偏移的系统和方法
公开(公告)号：US08983788B2
公开(公告)日：2015-03-17
申请号：US12895924
申请日：2010-10-01
申请人： Wei D. Wang , Steven E. Schulz , Jeffrey David , Jackie L Cui , Andrew M. Zettel , Hanne Buur
发明人： Wei D. Wang , Steven E. Schulz , Jeffrey David , Jackie L Cui , Andrew M. Zettel , Hanne Buur
IPC分类号： G01D18/00
CPC分类号： G01D18/006
摘要： A method includes detecting a first event and executing a first procedure to identify a sensor offset in response to detecting the first event. The method further includes determining, via a computing device, whether the sensor offset was measured during the execution of the first procedure, scheduling a second procedure to execute in response to detecting a second event if the sensor offset was not measured during the first procedure, and scheduling the first procedure to execute in response to detecting a subsequent occurrence of the first event if the sensor offset was measured during the first procedure.
摘要翻译：一种方法包括检测第一事件并且执行第一过程以响应于检测到第一事件来识别传感器偏移。该方法还包括经由计算设备确定在执行第一过程期间是否测量了传感器偏移量，如果在第一过程期间未测量传感器偏移量，则调度响应于检测到第二事件执行的第二过程，以及如果在所述第一过程期间测量了所述传感器偏移量，则响应于检测到所述第一事件的后续出现来调度所述第一过程以执行。

94. 发明授权

US08754603B2 Methods, systems and apparatus for reducing power loss in an electric motor drive system 有权
标题翻译：用于减少电动机驱动系统中的功率损耗的方法，系统和装置
公开(公告)号：US08754603B2
公开(公告)日：2014-06-17
申请号：US13183318
申请日：2011-07-14
申请人： Michael Arnett , Steven E. Schulz , Bon Ho Bae , Silva Hiti , Ronghui Li
发明人： Michael Arnett , Steven E. Schulz , Bon Ho Bae , Silva Hiti , Ronghui Li
IPC分类号： H02P7/00
CPC分类号： H02P3/18 , H02P21/0021 , H02P21/36
摘要： Methods, system and apparatus are provided for reducing power loss in an electric motor drive system that includes an electric machine and an inverter module. A controller determines whether a torque command (Tcmd) is less than a minimum torque threshold (Tmin) that is required to disable the inverter module, and if so, increments a counter and determines whether the torque command (Tcmd) remains less than the minimum torque threshold (Tmin). When the torque command (Tcmd) remains less than the minimum torque threshold (Tmin), the controller checks to determine whether a current count value (n) maintained at the counter is greater than a count threshold (nth), and if so, the controller can generate a disable signal to disable switching within the inverter module.
摘要翻译：提供了用于减少包括电机和逆变器模块的电动机驱动系统中的功率损耗的方法，系统和装置。控制器确定转矩指令（Tcmd）是否小于禁用变频器模块所需的最小转矩阈值（Tmin），如果是，则增加一个计数器，并确定转矩指令（Tcmd）是否保持小于最小值转矩阈值（Tmin）。当扭矩指令（Tcmd）保持小于最小扭矩阈值（Tmin）时，控制器检查以确定计数器上保持的当前计数值（n）是否大于计数阈值（nth），如果是，则控制器可以产生一个禁用信号，以禁用逆变器模块内的开关。

95. 发明授权

US08649887B2 Methods, systems and apparatus for implementing dithering in motor drive system for controlling operation of an electric machine 有权
标题翻译：电机驱动系统中抖动的控制方法，系统和装置，用于控制电机运行
公开(公告)号：US08649887B2
公开(公告)日：2014-02-11
申请号：US13477275
申请日：2012-05-22
申请人： Steven E. Schulz , Michael J. Grimmer , Konstantin S. Majarov , William R. Cawthorne
发明人： Steven E. Schulz , Michael J. Grimmer , Konstantin S. Majarov , William R. Cawthorne
IPC分类号： G05B21/02
CPC分类号： H02P27/085 , H02P11/06 , H02P23/04
摘要： Embodiments of the present disclosure relate to methods, systems and apparatus for implementing dithering in motor drive system for controlling operation of a multi-phase electric machine.
摘要翻译：本公开的实施例涉及用于实现电动机驱动系统中的抖动以控制多相电机的操作的方法，系统和装置。

96. 发明授权

US08536818B2 Control of a traction power inverter module in a vehicle having an electric traction motor 有权
标题翻译：控制具有电力牵引电动机的车辆中的牵引电力逆变器模块
公开(公告)号：US08536818B2
公开(公告)日：2013-09-17
申请号：US13086532
申请日：2011-04-14
申请人： Steven E. Schulz , Mohammad N. Anwar , Michael J. Grimmer , Silva Hiti
发明人： Steven E. Schulz , Mohammad N. Anwar , Michael J. Grimmer , Silva Hiti
IPC分类号： G05B11/28
CPC分类号： H02P27/08 , B60L11/1803 , Y02T10/642 , Y02T10/7005
摘要： A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above.
摘要翻译：用于控制车辆中的牵引力逆变器模块（TPIM）的方法包括使用控制器确定电动机的命令输出转矩。该方法还包括当指令的输出转矩小于校准转矩阈值时，使用不连续的脉宽调制（DPWM）信号来控制TPIM和电动机。当指令输出转矩大于阈值时，使用连续脉宽调制（CPWM）信号。该方法可以包括：仅当指令的输出转矩低于预定的滞后电平时，才通过控制器使用DPWM信号来确定所命令的输出转矩的改变的方向，并控制TPIM。车辆包括产生用于推进车辆的电动机扭矩的牵引电动机，ESS，TPIM和如上所述配置的控制器。

97. 发明授权

US08362732B2 Motor phase winding fault detection method and apparatus 有权
标题翻译：电机相绕组故障检测方法及装置
公开(公告)号：US08362732B2
公开(公告)日：2013-01-29
申请号：US12698221
申请日：2010-02-02
申请人： Mohammad N. Anwar , S. M. N. Hasan , Khwaja M. Rahman , Silva Hiti , Steven E. Schulz , Sean E. Gleason
发明人： Mohammad N. Anwar , S. M. N. Hasan , Khwaja M. Rahman , Silva Hiti , Steven E. Schulz , Sean E. Gleason
IPC分类号： G01R31/02
CPC分类号： G01R31/343
摘要： A method of detecting a phase winding fault in a multi-phase electric machine is executable via a motor controller, and includes measuring feedback signals of the machine, including each phase current, and generating reference phase voltages for each phase. The method includes calculating a predetermined voltage value using the feedback signals and reference phase voltages, and comparing the voltage value to a corresponding threshold to determine the fault. A control action is executed when the voltage value exceeds the corresponding threshold. The voltage value is one or more of: a ratio of a normalized negative sequence voltage to a modulation index, an RMS voltage for each phase, and total harmonic distortion of each phase current. An apparatus detects the fault, and includes a motor controller and an algorithm as set forth above. The apparatus may include a voltage inverter for generating a multi-phase alternating current output for powering the machine.
摘要翻译：检测多相电机中的相绕组故障的方法可通过马达控制器执行，并且包括测量机器的反馈信号，包括每个相电流，并产生每相的参考相电压。该方法包括使用反馈信号和参考相电压来计算预定电压值，并将电压值与相应的阈值进行比较以确定故障。当电压值超过相应的阈值时，执行控制动作。电压值是以下中的一个或多个：归一化负序电压与调制指数的比率，每相的RMS电压以及每个相电流的总谐波失真。一种装置检测故障，并包括如上所述的马达控制器和算法。该装置可以包括电压逆变器，用于产生用于为机器供电的多相交流输出。

98. 发明授权

US08358095B2 Method and system for testing electric motors 有权
标题翻译：电动机测试方法及系统
公开(公告)号：US08358095B2
公开(公告)日：2013-01-22
申请号：US12533762
申请日：2009-07-31
申请人： Peter J. Savagian , Steven E. Schulz , Silva Hiti
发明人： Peter J. Savagian , Steven E. Schulz , Silva Hiti
IPC分类号： G01R31/02 , H02H3/04 , H02K11/00
CPC分类号： G01R31/343
摘要： Method and systems for testing an electric motor are provided. A switching circuit coupled to the motor is operated in a first mode causing current to flow through the motor such that the motor is actuated with near zero torque. A magnitude of the current is repeatedly adjusted between first and second values. The current flow through the motor is monitored.
摘要翻译：提供了用于测试电动机的方法和系统。耦合到电动机的开关电路以第一模式操作，使得电流流过电动机，使得电动机以接近零的转矩被致动。在第一和第二值之间重复地调整电流的大小。监测通过电机的电流。

99. 发明授权

US08354817B2 Methods and systems for diagnosing stator windings in an electric motor 有权
标题翻译：用于诊断电动机定子绕组的方法和系统
公开(公告)号：US08354817B2
公开(公告)日：2013-01-15
申请号：US12486910
申请日：2009-06-18
申请人： Chia-Chou Yeh , Steven E. Schulz , Mohammad N. Anwar
发明人： Chia-Chou Yeh , Steven E. Schulz , Mohammad N. Anwar
IPC分类号： H02P23/00
CPC分类号： G01R31/343 , G01R31/024 , H02P21/06 , H02P29/02 , H02P29/0243
摘要： Systems and methods are provided for diagnosing stator windings in an electric motor operating under control of a current-regulating control loop. The current-regulating control loop is configured to provide a command voltage to the electric motor. The command voltage comprises a current-regulated voltage based on a difference between a commanded current and a measured current through the stator windings. The method comprises determining a negative sequence component of the command voltage, and identifying a fault condition when a characteristic of the negative sequence component is greater than a threshold value.
摘要翻译：提供了系统和方法，用于诊断在电流调节控制回路控制下工作的电动机中的定子绕组。电流调节控制回路被配置为向电动机提供指令电压。指令电压包括基于指令电流和通过定子绕组的测量电流之间的差的电流调节电压。所述方法包括确定所述指令电压的负序分量，以及当所述负序分量的特性大于阈值时识别故障状况。

100. 发明授权

US08212505B2 Method and system for creating a vibration in an automobile 有权
标题翻译：在汽车中产生振动的方法和系统
公开(公告)号：US08212505B2
公开(公告)日：2012-07-03
申请号：US12326259
申请日：2008-12-02
申请人： James M. Nagashima , Steven E. Schulz , Yo Chan Son , Jonas Bereisa
发明人： James M. Nagashima , Steven E. Schulz , Yo Chan Son , Jonas Bereisa
IPC分类号： H02P6/10
CPC分类号： H02P21/06 , B60L11/14 , B60L15/025 , B60L2220/14 , B60L2270/145 , B60L2270/42 , B60Q5/008 , H02P6/10 , Y02T10/643 , Y02T10/70 , Y02T10/7077 , Y02T10/7258
摘要： A method and system for operating an automotive electric motor having first and second components is provided. A desired frequency of vibration for the electric motor is selected. A current is caused to flow through at least one of the first and second components such that the second component moves relative to the first component. The current is modulated such that the motor vibrates at the desired frequency.
摘要翻译：提供一种用于操作具有第一和第二部件的汽车电动机的方法和系统。选择电动机的期望的振动频率。引起电流流过第一和第二组分中的至少一个，使得第二组分相对于第一组分移动。调节电流，使电机以所需的频率振动。

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