利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.018 秒)

    ELECTRIC MOTOR STATOR WINDING TEMPERATURE ESTIMATION
    2.
    发明申请
    ELECTRIC MOTOR STATOR WINDING TEMPERATURE ESTIMATION 有权
    电动机定子绕组温度估计

    公开(公告)号：US20090189561A1

    公开(公告)日：2009-07-30

    申请号：US12019395

    申请日：2008-01-24

    申请人： NITINKUMAR R. PATEL ,  YO CHAN SON ,  SILVA HITI ,  STEVEN E. SCHULZ

    发明人： NITINKUMAR R. PATEL ,  YO CHAN SON ,  SILVA HITI ,  STEVEN E. SCHULZ

    IPC分类号： H02P23/14 ,  H02K9/00 ,  H02K11/00

    CPC分类号： H02H7/0852

    摘要： A temperature estimation controller and methods are provided for controlling a torque command to prevent overheating of one or more of a plurality of phases of a permanent magnet motor. The temperature estimation controller includes a low speed temperature estimation module, a transition module and a temperature dependent torque command derater block. The low speed temperature estimation module determines a stator temperature of each of a plurality of phases of the permanent magnet motor in response to first thermal impedances measured for each of the plurality of phases with respect to a thermal neutral. The transition module is coupled to the low speed temperature estimation module and outputs the stator temperature of each of a plurality of phases of the permanent magnet motor as determined by the low speed temperature estimation module when a detected speed of the permanent magnet motor is less than a first predetermined speed. The temperature dependent torque command derater block is coupled to the transition module and derates the torque command in response to the stator temperature of one or more of the plurality of phases.

    摘要翻译： 提供了一种用于控制转矩指令以防止永磁电动机的多相中的一个或多个相的过热的温度估计控制器和方法。 温度估计控制器包括低速温度估计模块，过渡模块和与温度相关的转矩指令减排模块。 低速温度估计模块响应于相对于热中性点对多个相中的每一个测量的第一热阻而确定永磁电动机的多相的每个相的定子温度。 当所述永磁电动机的检测速度小于所述低速温度估计模块时，所述过渡模块耦合到所述低速温度估计模块，并且输出由所述低速温度估计模块确定的所述永磁电动机的多个相中的每一个的定子温度。 第一预定速度。 与温度相关的转矩指令转换器模块耦合到转换模块，并响应于多个相位中的一个或多个的定子温度降低转矩指令。

    METHOD AND SYSTEM FOR SENSORLESS CONTROL OF AN ELECTRIC MOTOR
    3.
    发明申请
    METHOD AND SYSTEM FOR SENSORLESS CONTROL OF AN ELECTRIC MOTOR 有权
    电动机无传感控制方法与系统

    公开(公告)号：US20090140676A1

    公开(公告)日：2009-06-04

    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： H02P6/18 ,  B60L3/00 ,  G06F19/00 ,  H02P21/08

    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。

    FAIL-SAFE CONTROLS FOR ELECTRIC TRACTION DRIVE SYSTEMS
    4.
    发明申请
    FAIL-SAFE CONTROLS FOR ELECTRIC TRACTION DRIVE SYSTEMS 有权
    电动牵引驱动系统的失效安全控制

    公开(公告)号：US20110089876A1

    公开(公告)日：2011-04-21

    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： H02P6/18

    CPC分类号： H02P21/04 ,  B60L3/0038 ,  B60L3/06 ,  H02P21/24 ,  H02P29/032 ,  Y02T10/643

    摘要： A method is provided for operation of an internal permanent magnet motor having a rotor. The method 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 of the rotor derived by a first sensorless signal estimation method when the neutral point access signal is received from the rotor, 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 of the rotor derived by a second sensorless signal estimation method when the neutral point access signal is not received from the rotor, 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： 提供一种用于具有转子的内部永磁电动机的操作的方法。 该方法包括：当中性点访问时，确定是否从转子接收到中性点访问信号，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信号估计方法获得的转子的转子速度来操作内部永磁电动机 信号从转子接收，其中第一无传感器信号估计方法利用中性点存取信号产生转子位置和转子速度。 该方法还包括当没有从转子接收到中性点存取信号时，使用与转子位置相对应的无转速信号和由第二无传感器信号估计方法导出的转子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。

    METHOD AND APPARATUS FOR LOW SPEED PERMANENT MAGNET MOTOR OPERATION
    7.
    发明申请
    METHOD AND APPARATUS FOR LOW SPEED PERMANENT MAGNET MOTOR OPERATION 有权
    低速永磁电机运行方法与装置

    公开(公告)号：US20110062902A1

    公开(公告)日：2011-03-17

    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： H02P21/04 ,  H02P6/18 ,  H02P23/04

    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。

    ELECTRIC MOTOR STATOR WINDING TEMPERATURE ESTIMATION
    8.
    发明申请
    ELECTRIC MOTOR STATOR WINDING TEMPERATURE ESTIMATION 有权
    电动机定子绕组温度估计

    公开(公告)号：US20110050141A1

    公开(公告)日：2011-03-03

    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： H02P7/00

    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。

    METHOD AND SYSTEM FOR INITIATING OPERATION OF AN ELECTRIC MOTOR
    10.
    发明申请
    METHOD AND SYSTEM FOR INITIATING OPERATION OF AN ELECTRIC MOTOR 有权
    电动机起动方法及系统

    公开(公告)号：US20110095713A1

    公开(公告)日：2011-04-28

    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： H02P6/20 ,  B60W20/00

    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。