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1. 发明申请

US20090295316A1 GEARLESS WHEEL MOTOR DRIVE SYSTEM 审中-公开
标题翻译：无齿轮电机驱动系统
公开(公告)号：US20090295316A1
公开(公告)日：2009-12-03
申请号：US12541409
申请日：2009-08-14
申请人： NITINKUMAR R. PATEL , SILVA HITI , KHWAJA M. RAHMAN
发明人： NITINKUMAR R. PATEL , SILVA HITI , KHWAJA M. RAHMAN
IPC分类号： H02P21/00
CPC分类号： H02K1/2793 , B60K6/26 , B60K7/0007 , B60K2007/0038 , B60K2007/0092 , B60L1/02 , B60L3/003 , B60L3/0046 , B60L3/0061 , B60L7/14 , B60L15/025 , B60L15/06 , B60L15/08 , B60L15/20 , B60L15/2009 , B60L50/51 , B60L58/30 , B60L2210/40 , B60L2220/14 , B60L2220/16 , B60L2220/44 , B60L2220/50 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/427 , B60L2240/429 , B60L2240/526 , B60L2240/527 , B60L2240/529 , B60L2240/547 , B60L2250/26 , B60L2270/145 , H02K7/14 , H02K21/24 , H02K29/03 , H02P21/06 , Y02T10/641 , Y02T10/643 , Y02T10/644 , Y02T10/7241 , Y02T10/7275 , Y02T90/34
摘要： Methods and apparatus are provided for an electric vehicle embodying an axial flux traction motor directly coupled to a wheel thereof. The traction motor comprises a stator having coils for producing a magnetic field, an annular rotor magnetically coupled to the stator and mechanically to an output shaft. Permanent magnets of alternating polarity are mounted on the annular rotor. Magnetic shunts bridge a portion of the stator slots above the coils. The magnets are arranged in groups with group-to-group spacing exceeding magnet-to-magnet spacing. Adjacent edges of the magnets diverge. The method comprises, looking up d- and q-axis currents to provide the requested torque and motor speed for the available DC voltage, combining at least one of the d- and q-axis currents with a field weakening correction term, converting the result from synchronous to stationary frame and operating an inverter therewith to provide current to the coils of the motor.
摘要翻译：提供了一种实现轴向通量牵引电动机的电动车辆的方法和装置，其直接联接到其车轮。牵引电动机包括具有用于产生磁场的线圈的定子，与定子磁耦合并机械地连接到输出轴的环形转子。交替极性的永磁体安装在环形转子上。磁分路桥接线圈上方的定子槽的一部分。磁体以组间距离超过磁体与磁体的间距分组排列。磁体的相邻边缘发散。该方法包括：查找d轴和q轴电流以为可用的直流电压提供所要求的转矩和电动机速度，将d轴和q轴电流中的至少一个与弱磁修正项组合，转换结果从同步到静止的框架并且与其一起操作逆变器以向电动机的线圈提供电流。

2. 发明申请

US20090251096A1 METHOD AND APPARATUS FOR TORQUE RIPPLE REDUCTION 有权
标题翻译：扭矩减少方法和装置
公开(公告)号：US20090251096A1
公开(公告)日：2009-10-08
申请号：US12098287
申请日：2008-04-04
申请人： STEVEN E. SCHULZ , JOHN P. MILLER , KHWAJA M. RAHMAN , SOO-YEOL LEE
发明人： STEVEN E. SCHULZ , JOHN P. MILLER , KHWAJA M. RAHMAN , SOO-YEOL LEE
IPC分类号： H02P6/10 , H02P27/08
CPC分类号： H02P21/06 , H02P6/10 , H02P27/08
摘要： Methods and apparatus are provided for reducing torque ripple in a permanent magnet motor system comprising a permanent magnet motor coupled to an inverter. The method comprises the steps of receiving a torque command, generating a torque ripple reduction signal in response to the torque command, modifying operational control signals in response to the torque ripple reduction signal to generate reduced ripple operational control signals, and providing the reduced ripple operational control signals to the inverter for control of the permanent magnet motor.
摘要翻译：提供了用于减少永磁电动机系统中的扭矩波动的方法和装置，其包括耦合到逆变器的永磁电动机。该方法包括以下步骤：接收转矩指令，响应于转矩指令产生转矩脉动降低信号，响应于转矩脉动降低信号修改运行控制信号以产生减小的纹波运算控制信号，并提供降低的纹波运算控制信号到变频器以控制永磁电动机。

3. 发明申请

US20110037339A1 CONCENTRATED WINDING MACHINES WITH REDUCED TORQUE RIPPLE AND METHODS FOR DESIGNING THE SAME 审中-公开
标题翻译：具有减少扭矩纹理的浓缩式卷绕机及其设计方法
公开(公告)号：US20110037339A1
公开(公告)日：2011-02-17
申请号：US12540164
申请日：2009-08-12
申请人： KHWAJA M. RAHMAN , MATTHEW D. LABA , EDWARD L. KAISER , PETER J. SAVAGIAN
发明人： KHWAJA M. RAHMAN , MATTHEW D. LABA , EDWARD L. KAISER , PETER J. SAVAGIAN
IPC分类号： H02K1/16 , G06F17/50 , G06G7/63 , H02K15/02
CPC分类号： H02K29/03 , H02K1/148 , H02K1/165 , Y10T29/49009
摘要： Systems and methods are provided for a motor having a concentrated winding construction with reduced torque ripple. A motor comprises a stator including a plurality of tooth segments disposed circumferentially to establish a hollow core and a rotor rotatably disposed inside the hollow core. The plurality of tooth segments define a plurality of slot openings associated with a plurality of slots. Each slot of the plurality of slots has a slot opening and at least one slot opening of the plurality of slot openings is asymmetric with respect to the plurality of slot openings.
摘要翻译：为具有减小转矩脉动的集中绕组结构的电动机提供系统和方法。电动机包括定子，其包括周向设置的多个齿段以建立中空芯和可旋转地设置在中空芯内部的转子。多个齿段限定与多个槽相关联的多个狭槽开口。多个槽的每个槽具有槽开口，并且多个槽开口中的至少一个槽开口相对于多个槽开口是不对称的。

4. 发明申请

US20100199489A1 METHODS FOR FORMING A MAGNET IN A ROTOR 有权
标题翻译：在转子中形成磁铁的方法
公开(公告)号：US20100199489A1
公开(公告)日：2010-08-12
申请号：US12763494
申请日：2010-04-20
申请人： TERENCE G. WARD , KHWAJA M. RAHMAN
发明人： TERENCE G. WARD , KHWAJA M. RAHMAN
IPC分类号： H02K15/02
CPC分类号： H02K15/03 , H01F1/083 , H01F1/113 , H01F41/0273
摘要： Methods are provided for forming/inserting a magnet in a rotor. One method includes coating a plurality of magnetizable particles with a non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles. Another method includes inserting a plurality of magnetizable particles into a rotor, submersing the rotor in motor varnish or another viscous, non-metallic material to coat the particles, and magnetizing the particles. Yet another method includes inserting a plurality of magnetizable particles in a rotor, inserting a non-metallic material into the rotor, mixing the particles and non-metallic material to form a mixture, curing the mixture to coat each particle with non-metallic material, and magnetizing the particles. Still another method includes mixing a plurality of magnetizable particles with a non-metallic material, curing the non-metallic material to coat each particle with non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles.
摘要翻译：提供了用于在转子中形成/插入磁体的方法。一种方法包括用非金属材料涂覆多个可磁化颗粒，将涂覆的颗粒插入转子中，并使涂覆的颗粒磁化。另一种方法包括将多个可磁化颗粒插入转子中，将转子浸入马达清漆或另一粘性非金属材料中以涂覆颗粒，并使颗粒磁化。另一种方法包括将多个可磁化颗粒插入转子中，将非金属材料插入转子中，将颗粒和非金属材料混合以形成混合物，固化混合物以用非金属材料涂覆每个颗粒，并使颗粒磁化。另一种方法包括将多个可磁化颗粒与非金属材料混合，固化非金属材料以用非金属材料涂覆每个颗粒，将涂覆的颗粒插入转子中，并使涂覆的颗粒磁化。

5. 发明申请

US20090127942A1 CONCENTRATED WINDING MACHINE WITH MAGNETIC SLOT WEDGES 有权
标题翻译：浓缩卷绕机，带有磁卡槽
公开(公告)号：US20090127942A1
公开(公告)日：2009-05-21
申请号：US11940407
申请日：2007-11-15
申请人： KHWAJA M. RAHMAN , EDWARD L. KAISER , MATTHEW D. LABA
发明人： KHWAJA M. RAHMAN , EDWARD L. KAISER , MATTHEW D. LABA
IPC分类号： H02K3/493 , H02K1/16
CPC分类号： H02K1/148 , H02K3/345 , H02K3/493
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。

6. 发明申请

US20100213781A1 METHODS AND APPARATUS FOR A PERMANENT MAGNET MACHINE WITH ASYMMETRICAL ROTOR MAGNETS 有权
标题翻译：具有不对称转子磁铁的永久磁铁机的方法和装置
公开(公告)号：US20100213781A1
公开(公告)日：2010-08-26
申请号：US12390045
申请日：2009-02-20
申请人： KHWAJA M. RAHMAN , EDWARD L. KAISER , PETER J. SAVAGIAN
发明人： KHWAJA M. RAHMAN , EDWARD L. KAISER , PETER J. SAVAGIAN
IPC分类号： H02K21/14
CPC分类号： H02K1/2766 , H02K29/03
摘要： In general, the various embodiments are directed to a permanent magnet machine (“PM machine”), and more specifically an internal permanent magnet machine (“IPM machine”) that includes rotor magnets configured asymmetrically with respect to the rotor periphery, thereby producing an averaging effect similar to that achieved through traditional skewing of the rotor magnets. In alternate embodiments, the span, placement and/or shape of the magnets may vary from one pole to the next.
摘要翻译：通常，各种实施例涉及永久磁铁机（“PM机”），更具体地涉及包括相对于转子周边不对称地配置的转子磁体的内部永久磁铁机（“IPM机”），从而产生平均效果类似于通过转子磁体的传统倾斜实现的效果。在替代实施例中，磁体的跨度，位置和/或形状可以从一个极点到下一个极点变化。

7. 发明申请

US20090140596A1 METHODS AND APPARATUS FOR A BAR-WOUND STATOR WITH PARALLEL CONNECTIONS 审中-公开
标题翻译：具有平行连接的棒式定子的方法和装置
公开(公告)号：US20090140596A1
公开(公告)日：2009-06-04
申请号：US12323906
申请日：2008-11-26
申请人： EDWARD L. KAISER , KHWAJA M. RAHMAN
发明人： EDWARD L. KAISER , KHWAJA M. RAHMAN
IPC分类号： H02K3/12 , H02K15/085
CPC分类号： H02K3/28 , H02K3/12 , Y10T29/49009
摘要： A bar-wound stator design with parallel connections is characterized by a shorter end turn length as compared to conventional stranded winding. The stator includes an inner winding set and an outer winding set provided within a plurality of slots, wherein the inner winding set is parallel to the outer winding set, and each winding set comprises multiple phases; and wherein the inner winding set and the outer winding set are staggered one slot within the plurality of slots.
摘要翻译：具有平行连接的棒式定子设计的特征在于与传统的绞合绕组相比较短的端部转弯长度。定子包括设置在多个槽内的内绕组和外绕组，其中内绕组组平行于外绕组，每组绕组包括多相; 并且其中所述内部卷绕组和所述外部卷绕组在所述多个狭槽内交错设置成一个槽。

8. 发明申请

US20090140592A1 METHODS AND APPARATUS FOR A PERMANENT MAGNET MACHINE WITH AN ADDED AIR BARRIER 有权
标题翻译：具有添加空气障碍物的永久磁铁机的方法和装置
公开(公告)号：US20090140592A1
公开(公告)日：2009-06-04
申请号：US12269463
申请日：2008-11-12
申请人： KHWAJA M. RAHMAN , EDWARD L. KAISER , MATTHEW D. LABA
发明人： KHWAJA M. RAHMAN , EDWARD L. KAISER , MATTHEW D. LABA
IPC分类号： H02K21/14 , H02K15/03
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。

9. 发明申请

US20120286613A1 ASYMMETRIC STATOR TEETH IN AN ELECTRIC MOTOR 有权
标题翻译：电动马达中的不对称定子电极
公开(公告)号：US20120286613A1
公开(公告)日：2012-11-15
申请号：US13103158
申请日：2011-05-09
申请人： SINISA JURKOVIC , XINYU ZHOU , QIANG NIU , KHWAJA M. RAHMAN , JOHN C. MORGANTE , XU HAN , EDWARD L. KAISER
发明人： SINISA JURKOVIC , XINYU ZHOU , QIANG NIU , KHWAJA M. RAHMAN , JOHN C. MORGANTE , XU HAN , EDWARD L. KAISER
IPC分类号： H02K21/12
CPC分类号： H02K21/16 , H02K1/16 , H02K29/03 , H02K2201/03
摘要： A permanent magnet motor includes a permanent magnet rotor, a stator surrounding the rotor having a plurality of teeth radially inwardly oriented toward a longitudinal axis of the stator wherein each tooth has a tooth length and a tooth tip surface geometry. An asymmetric air gap is defined by variations in the tooth lengths and tooth tip surface geometries.
摘要翻译：永磁电动机包括永磁转子，围绕转子的定子具有径向向内定向于定子的纵向轴线的多个齿，其中每个齿具有齿长和齿顶表面几何形状。不对称气隙由齿长和齿尖表面几何形状的变化规定。

10. 发明申请

US20110050026A1 INSULATION ASSEMBLY FOR A STATOR CORE 有权
标题翻译：绝缘组件用于定子芯
公开(公告)号：US20110050026A1
公开(公告)日：2011-03-03
申请号：US12550113
申请日：2009-08-28
申请人： EDWARD L. KAISER , KHWAJA M. RAHMAN
发明人： EDWARD L. KAISER , KHWAJA M. RAHMAN
IPC分类号： H02K3/34
CPC分类号： H02K3/345 , B60L3/0061 , B60L3/0069 , B60L11/14 , B60L11/1861 , B60L11/1887 , B60L2200/12 , B60L2200/36 , B60L2220/50 , B60L2260/28 , Y02T10/641 , Y02T10/70 , Y02T10/7044 , Y02T10/705 , Y02T10/7077 , Y02T90/34
摘要： An assembly for providing electrical insulation in a stator core of a vehicular electric machine is provided. The stator core has a channel and the assembly comprises a first conductive element disposed through the channel, and a second conductive element disposed through the channel and substantially adjacent to the first conductive element. The assembly also comprises a first electrically insulating film having a first end residing between the first and second conductive elements.
摘要翻译：提供了一种用于在车辆电机的定子芯中提供电绝缘的组件。定子铁心具有通道，该组件包括通过该通道设置的第一导电元件，以及设置成穿过通道并基本上邻近第一导电元件的第二导电元件。组件还包括具有驻留在第一和第二导电元件之间的第一端的第一电绝缘膜。

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