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公开(公告)号：US09154019B2
公开(公告)日：2015-10-06
申请号：US13494163
申请日：2012-06-12
IPC分类号： H02K11/00
CPC分类号： H02K11/0005 , H02K11/01 , H02K11/225
摘要： A hub assembly for an electric machine includes a rotor hub and a machine rotor. Rotation of the machine rotor generates an electromagnetic (EM) field. The hub assembly includes a resolver rotor that encodes an angular position of the machine rotor as a set of resolver signals. An EM field barrier ring between the resolver rotor and the rotor hub adds a magnetic barrier between the machine rotor and the resolver rotor to reduce noise in the resolver signals. The resolver rotor may be bonded to the EM field barrier ring. The EM field barrier ring may have an L-shaped cross section, and may be press-fitted into a pocket of the rotor hub. A vehicle includes a transmission having an input member and an electric machine having a rotor shaft connected to the input member of the transmission. The electric machine includes the hub assembly noted above.
摘要翻译： 一种用于电机的轮毂组件包括转子轮毂和机器转子。 机器转子的旋转产生电磁（EM）场。 轮毂组件包括一个旋转变压器转子，其将机器转子的角位置编码为一组旋转变压器信号。 旋转变压器转子和转子轮毂之间的EM磁场阻挡环在机器转子和旋转变压器转子之间增加了磁屏障，以减小旋转变压器信号的噪音。 旋转变压器转子可以结合到EM场屏障环上。 EM场阻挡环可以具有L形横截面，并且可以压配合到转子毂的凹部中。 车辆包括具有输入构件的变速器和具有连接到变速器的输入构件的转子轴的电机。 电机包括上述的轮毂组件。
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2.发明授权公开(公告)号：US08957563B2
公开(公告)日：2015-02-17
申请号：US13314065
申请日：2011-12-07
申请人： Khwaja M. Rahman , Constantin C. Stancu , Sinisa Jurkovic , Xinyu Zhou , Qiang Niu , Xu Han
发明人： Khwaja M. Rahman , Constantin C. Stancu , Sinisa Jurkovic , Xinyu Zhou , Qiang Niu , Xu Han
IPC分类号： H02K1/06
CPC分类号： H02K1/24 , H02K29/03 , H02K2201/03 , H02K2213/03
摘要： An electric machine is provided with a rotor configured to be rotatable within a stator. A first and second tooth are disposed circumferentially along an outer perimeter of the rotor and at least partially define a first slot. The first and the second tooth define a respective first and second outer edge extending between a respective tooth base and a respective tooth tip. An arc radius from the origin to the outer perimeter of the rotor varies along the first outer edge of the first tooth, thereby creating a first non-uniform gap between the rotor and the stator. The arc radius from the origin to the outer perimeter of the rotor varies along the second outer edge of the second tooth, thereby creating a second non-uniform gap between the rotor and the stator. The rotor geometry is configured to reduce torque ripple without skewing either the rotor or the stator.
摘要翻译： 电机设置有可在定子内旋转的转子。 第一和第二齿沿着转子的外周边沿圆周设置并且至少部分地限定第一槽。 第一和第二齿限定在相应的齿根和相应的齿尖之间延伸的相应的第一和第二外边缘。 从转子的原点到外周的弧半径沿着第一齿的第一外边缘变化，从而在转子和定子之间产生第一不均匀的间隙。 从转子的原点到外周的弧半径沿着第二齿的第二外边缘变化，从而在转子和定子之间产生第二非均匀间隙。 转子几何形状被配置为减小转矩脉动，而不会使转子或定子歪斜。
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3.发明授权公开(公告)号：US08933606B2
公开(公告)日：2015-01-13
申请号：US13315856
申请日：2011-12-09
CPC分类号： H02K1/2706 , H02K1/2766
摘要： An interior permanent magnet machine includes a rotor having a plurality of slots. First and second slots are disposed in a first pole and the third and fourth slots are disposed in a second pole. A first barrier is defined by the first, second, third and fourth slots. The slots are configured to be symmetric relative to their respective pole axes. A first angle is defined between the first and second slots. A second angle is defined between the third and fourth slots. The first angle is configured to be sufficiently different from the second angle so that torque ripple is minimized. Thus the rotor is configured such that the angular configuration of slots in a first pole is different from the angular configuration of slots in a second pole of the rotor.
摘要翻译： 内置永磁电机包括具有多个槽的转子。 第一和第二槽设置在第一极中，第三和第四槽设置在第二极中。 第一屏障由第一，第二，第三和第四槽定义。 槽被配置为相对于它们各自的极轴对称。 在第一和第二槽之间限定第一角度。 在第三和第四槽之间限定第二角度。 第一角度被构造成与第二角度充分不同，使得扭矩波动最小化。 因此，转子被构造成使得第一极中的槽的角度构造不同于转子的第二极中的槽的角度构造。
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公开(公告)号：US20140042860A1
公开(公告)日：2014-02-13
申请号：US13570721
申请日：2012-08-09
申请人： Khwaja M. Rahman , Sinisa Jurkovic
发明人： Khwaja M. Rahman , Sinisa Jurkovic
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K2213/03
摘要： A rotor core defines a plurality of cavities, and includes one magnet disposed within each cavity. Each magnet includes a cross section that defines an arcuate shape having an arc center. The magnets are arranged about a pole axis to define a first group of magnets disposed on a first side of the pole axis, and a second group of magnets disposed on a second side of the pole axis. The arc centers of each of the magnets of the first group of magnets and the second group of magnets are spaced from each other and are spaced from the pole axis. The plurality of magnets is arranged in a plurality of layers. The arc centers of each of the magnets in each of the layers are spaced from each other.
摘要翻译： 转子芯限定多个空腔，并且包括设置在每个空腔内的一个磁体。 每个磁体包括限定具有圆弧中心的弓形形状的横截面。 磁体围绕极轴布置以限定设置在极轴的第一侧上的第一组磁体，以及设置在极轴的第二侧上的第二组磁体。 第一组磁体和第二组磁体的每个磁体的圆弧中心彼此间隔开并且与磁极轴线间隔开。 多个磁体被布置成多个层。 每个层中每个磁体的圆弧中心彼此间隔开。
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5.发明申请INTERIOR PERMANENT MAGNET MACHINE WITH RADIALLY ASYMMETRIC MAGNET CONFIGURATION 有权内置永磁电机，配有放射性不对称磁铁配置公开(公告)号：US20130069470A1
公开(公告)日：2013-03-21
申请号：US13238008
申请日：2011-09-21
申请人： Sinisa Jurkovic , Khwaja M. Rahman , Xinyu Zhou , Xu Han , Qiang Niu
发明人： Sinisa Jurkovic , Khwaja M. Rahman , Xinyu Zhou , Xu Han , Qiang Niu
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K1/276
摘要： An interior permanent magnet machine is provided with a rotor that includes a plurality of slots and at least one barrier defined by the plurality of slots. A plurality of first and second magnets are disposed within the barrier. The rotor is configured such that at least one of the first magnets is located at a different radial distance from the center of the rotor relative to at least one of the second magnets. The rotor may be configured to produce an averaging effect similar to that achieved through traditional skewing of rotor magnets. The rotor includes a plurality of poles defined by respective pole axes in the rotor and may be configured to reflect radial asymmetry between poles (pole-to-pole) and/or radial asymmetry within a pole.
摘要翻译： 内置永磁电机设有转子，转子包括多个槽和由多个槽限定的至少一个挡板。 多个第一和第二磁体设置在屏障内。 转子被构造成使得至少一个第一磁体位于与转子的中心相对于至少一个第二磁体不同的径向距离处。 转子可以被配置成产生类似于通过转子磁体的传统偏斜实现的平均效果。 转子包括由转子中的相应极轴限定的多个极，并且可以被配置成反射极之间的极（极 - 极）和/或径向不对称之间的径向不对称。
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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。
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公开(公告)号：US20130020896A1
公开(公告)日：2013-01-24
申请号：US13186183
申请日：2011-07-19
申请人： Xinyu Zhou , Sinisa Jurkovic , Qiang Niu , Khwaja M. Rahman , Xu Han , John C. Morgante
发明人： Xinyu Zhou , Sinisa Jurkovic , Qiang Niu , Khwaja M. Rahman , Xu Han , John C. Morgante
摘要： A rotor for a permanent magnet electric machine includes an axis of rotation, an outer surface, and a cross-section orthogonal to the axis of rotation with a non-circular contour of the outer surface defined by a plurality of radii angularly distributed around the axis of rotation.
摘要翻译： 用于永磁电机的转子包括旋转轴线，外表面和与旋转轴线正交的横截面，其外表面的非圆形轮廓由围绕轴线成角度地分布的多个半径限定 的旋转。
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8.发明授权Methods and apparatus for a permanent magnet machine with an added air barrier 有权具有附加空气屏障的永磁机的方法和装置公开(公告)号：US08138651B2
公开(公告)日：2012-03-20
申请号：US12269463
申请日：2008-11-12
CPC分类号： H02K1/2766 , Y02T10/641 , Y10T29/49012
摘要： An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor with an additional air barrier provided above the first magnet barrier in the same rotor slot. Each magnet only fills a portion of each cavity, thereby defining the air barriers. The added air barrier above the permanent magnet of the first layer acts as a barrier to the first layer magnet and lowers the magnet flux.
摘要翻译： 用于例如牵引电动机和混合电动车的类型的内部永久磁铁机（“IPM机”）包括在相同转子槽中设置在第一磁体屏障上方的附加空气阻挡件的转子。 每个磁体仅填充每个空腔的一部分，从而限定空气屏障。 第一层永久磁铁上方的附加空气阻挡层作为第一层磁体的阻挡层，降低磁通量。
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公开(公告)号：US08129880B2
公开(公告)日：2012-03-06
申请号：US11940407
申请日：2007-11-15
IPC分类号： H02K3/48
摘要： Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, an apparatus comprises stator teeth having distal ends, the stator teeth arranged in an annular fashion about an axis to define stator slots between adjacent teeth and slot openings between the distal ends of the adjacent teeth, the stator teeth structured to prevent relative movement between adjacent teeth. The apparatus further comprises magnetic wedges structured to be inserted between the distal ends of the adjacent teeth to close the slot openings.
摘要翻译： 提供了用于改善集中绕线机的操作特性的方法和装置。 根据示例性实施例，一种设备包括具有远端的定子齿，定子齿围绕轴线以环形方式布置，以在相邻齿之间限定定子槽和相邻齿的远端之间的狭槽开口，定子齿构造成 防止相邻牙齿之间的相对运动。 该装置还包括构造成插入相邻齿的远端之间的磁楔，以闭合槽开口。
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10.发明授权公开(公告)号：US08054084B2
公开(公告)日：2011-11-08
申请号：US12468362
申请日：2009-05-19
IPC分类号： G01R31/06
CPC分类号： G01R31/346 , G01R31/024 , G01R31/34
摘要： Systems and methods are provided for identifying a fault condition in stator windings in an electric motor. A method comprises applying a first signal at a first electrical angle to the stator windings and measuring a second signal from the stator windings in response to the first signal. The method further comprises determining a measured response for the electric motor at the first electrical angle based on the second signal and obtaining a nominal response for the electric motor at the first electrical angle. A fault condition is identified when a magnitude of the difference between the measured response and the nominal response is greater than a threshold value.
摘要翻译： 提供了用于识别电动机中定子绕组中的故障状况的系统和方法。 一种方法包括以第一电角施加第一信号到定子绕组，并响应于第一信号测量来自定子绕组的第二信号。 该方法还包括基于第二信号确定第一电角度下的电动机的测量响应，并以第一电角度获得电动机的标称响应。 当测量的响应和标称响应之间的差值的大小大于阈值时，识别故障状况。
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