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1. 发明授权

US09136785B2 Motor control system to compensate for torque ripple 有权
标题翻译：电机控制系统补偿扭矩波动
公开(公告)号：US09136785B2
公开(公告)日：2015-09-15
申请号：US13795578
申请日：2013-03-12
申请人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
发明人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
IPC分类号： H02K29/06 , H02P6/10 , H02P21/00 , H02P21/05 , B62D5/04
CPC分类号： H02P6/10 , B62D5/046 , H02P21/05 , H02P21/22 , H02P29/50
摘要： A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.
摘要翻译：提供电机控制系统。电动机控制系统包括具有多个电动机谐波的电动机和与电动机连通的转矩脉动补偿控制器。转矩脉动补偿控制器被配置为确定多个电动机谐波中的相应一个的谐波纹波电流。谐波纹波电流基于参考q轴电流和参考d轴电流。扭矩纹波补偿控制器被配置为将多个电机谐波中的每一个的谐波纹波电流加在一起以确定纹波补偿电流。

2. 发明申请

US20140265961A1 MOTOR CONTROL SYSTEM TO COMPENSATE FOR TORQUE RIPPLE 有权
标题翻译：补偿扭矩纹理的电机控制系统
公开(公告)号：US20140265961A1
公开(公告)日：2014-09-18
申请号：US13795578
申请日：2013-03-12
申请人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
发明人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
IPC分类号： H02P6/10
CPC分类号： H02P6/10 , B62D5/046 , H02P21/05 , H02P21/22 , H02P29/50
摘要： A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.
摘要翻译：提供电机控制系统。电动机控制系统包括具有多个电动机谐波的电动机和与电动机连通的转矩脉动补偿控制器。转矩脉动补偿控制器被配置为确定多个电动机谐波中的相应一个的谐波纹波电流。谐波纹波电流基于参考q轴电流和参考d轴电流。扭矩纹波补偿控制器被配置为将多个电机谐波中的每一个的谐波纹波电流加在一起以确定纹波补偿电流。

3. 发明授权

US09054612B2 Motor control system to compensate for torque ripple 有权
公开(公告)号：US09054612B2
公开(公告)日：2015-06-09
申请号：US13795578
申请日：2013-03-12
申请人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
发明人： Abraham Gebregergis , Mohammad S. Islam , Tomy Sebastian , Mazharul H. Chowdhury , Shakil Hossain , Ramakrishnan RajaVenkitasubramony , Niharika P. Popy
IPC分类号： H02K29/06 , H02P6/10 , H02P21/00 , H02P21/05 , B62D5/04
摘要： A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.

4. 发明申请

US20150022044A1 SYSTEM AND METHOD FOR REDUCING TORQUE RIPPLE IN AN INTERIOR PERMANENT MAGNET MOTOR 审中-公开
标题翻译：用于减少内部永磁电机中的扭矩纹的系统和方法
公开(公告)号：US20150022044A1
公开(公告)日：2015-01-22
申请号：US13947601
申请日：2013-07-22
申请人： Mazharul H. Chowdhury , Mohammad S. Islam
发明人： Mazharul H. Chowdhury , Mohammad S. Islam
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , H02K1/148
摘要： An interior permanent magnet motor comprises a rotor assembly disposed within a stator assembly. The rotor assembly is configured for rotating about a central axis relatively to the stator assembly. The rotor assembly defines a plurality of magnet pockets within the rotor assembly along a radially outboard surface of the rotor assembly. Each magnet pocket is substantially rectangular in cross-sectional shape, and each magnet pocket is configured to facilitate insertion of a plurality of permanent magnets into and retention of the plurality of permanent magnets within, the magnet pocket. The rotor assembly further comprises a plurality of permanent magnet segments disposed in each magnet pocket.
摘要翻译：内部永磁电动机包括设置在定子组件内的转子组件。转子组件被配置为相对于定子组件围绕中心轴线旋转。转子组件沿着转子组件的径向外侧表面限定转子组件内的多个磁体凹部。每个磁体槽的横截面形状基本上是矩形的，并且每个磁体槽构造成便于将多个永久磁体插入磁体袋内并将其固定在磁体袋内。转子组件还包括设置在每个磁体袋中的多个永磁体段。

5. 发明申请

US20140265707A1 INTERIOR PERMANENT MAGNET MOTOR WITH SHIFTED ROTOR LAMINATIONS 有权
标题翻译：内置永磁电机，带有转子转子层压
公开(公告)号：US20140265707A1
公开(公告)日：2014-09-18
申请号：US13839225
申请日：2013-03-15
申请人： Steven D. Klein , Jeff T. Klass , Mohammed R. Islam , Mohammad S. Islam , Mazharul H. Chowdhury
发明人： Steven D. Klein , Jeff T. Klass , Mohammed R. Islam , Mohammad S. Islam , Mazharul H. Chowdhury
IPC分类号： H02K1/27 , H02K1/28
CPC分类号： H02K1/276 , H02K1/28 , H02K15/03 , H02K16/02 , H02K29/03 , H02K2201/06 , Y10T29/49012
摘要： A rotor comprises a first rotor lamination and a second rotor lamination. The first rotor lamination and the second rotor lamination are configured for defining, when joined into rotor assembly, a central axis of rotation and a plurality of interior magnet pockets disposed symmetrically about the central axis of rotation, each pocket of the plurality of interior magnet pockets is configured for housing and retaining a permanent magnet. A method of forming a rotor comprises forming a first rotor lamination and a second rotor lamination, rotating the second rotor lamination about an axis of symmetry of the second rotor lamination; and mating the first rotor lamination to the second rotor lamination such that a first notch of the first rotor lamination is disposed adjacent to the first notch of the second rotor lamination.
摘要翻译：转子包括第一转子层压和第二转子层压。第一转子叠片和第二转子叠片构造成当连接到转子组件中时限定中心旋转轴线和围绕中心旋转轴线对称设置的多个内部磁体袋，多个内部磁体袋的每个凹槽构造成用于容纳和保持永磁体。形成转子的方法包括形成第一转子叠片和第二转子叠片，使第二转子叠片围绕第二转子叠片的对称轴旋转; 以及将所述第一转子层压件与所述第二转子层压体配合，使得所述第一转子层叠件的第一凹口设置成与所述第二转子层压板的所述第一凹口相邻。

6. 发明申请

US20140260683A1 NON-CONTACTING TORQUE SENSOR WITH INJECTION MOLDED MAGNETS 有权
标题翻译：非接触式扭矩传感器，带注射成型磁铁
公开(公告)号：US20140260683A1
公开(公告)日：2014-09-18
申请号：US13836922
申请日：2013-03-15
申请人： Mohammad S. Islam , Mazharul H. Chowdhury
发明人： Mohammad S. Islam , Mazharul H. Chowdhury
IPC分类号： G01L3/10
CPC分类号： G01L3/104 , G01L5/221
摘要： A non-contacting torque sensor comprises a magnetic flux generating rotor and a magnetic flux detecting probe. The magnetic flux generating rotor is disposed axially between a first stator and a second stator and has a radially outboard surface and plurality of N pole magnets and S pole magnets alternatingly disposed proximate the radially outboard surface. Each stator has a plurality of stator teeth, with each one of said plurality of stator teeth corresponding to a unique one of said plurality of N pole magnets and S pole magnets. The magnetic flux detecting probe is disposed at a distance from the radially outboard surface and configured for detecting variations in magnetic flux produced by the magnetic flux generating rotor to detect a change of a relative twist between the magnetic flux generating rotor and the first stator and second stator. The N pole magnets and S pole magnets are injection molded.
摘要翻译：非接触转矩传感器包括磁通发生转子和磁通量检测探头。磁通发生转子轴向设置在第一定子和第二定子之间，并且具有径向外侧表面和多个N极磁体和S极磁体，其交替地设置在径向外侧表面附近。每个定子具有多个定子齿，所述多个定子齿中的每一个对应于所述多个N极磁体和S极磁体中唯一的一个。所述磁通检测用探针配置在距离所述径向外侧表面一定距离处，并被配置为检测由所述磁通发生转子产生的磁通量的变化，以检测所述磁通量产生转子和所述第一定子之间的相对扭转的变化，以及所述第二定子定子。 N极磁体和S极磁体注塑成型。

7. 发明申请

US20130320798A1 SYSTEM AND METHOD FOR REDUCING COGGING TORQUE IN AN INTERIOR PERMANENT MAGNET MOTOR 审中-公开
标题翻译：用于减少内部永磁电机中的凝固扭矩的系统和方法
公开(公告)号：US20130320798A1
公开(公告)日：2013-12-05
申请号：US13483514
申请日：2012-05-30
申请人： Mohammad S. Islam , Scott T. Blehm , Mazharul H. Chowdhury
发明人： Mohammad S. Islam , Scott T. Blehm , Mazharul H. Chowdhury
IPC分类号： H02K1/27
CPC分类号： H02K1/276
摘要： An interior permanent magnet motor comprises a rotor assembly disposed within a stator assembly. The rotor assembly is configured for rotating about a central axis relatively to the stator assembly. The rotor assembly defines a plurality of magnet pockets within the rotor assembly along a radially outboard surface of the rotor assembly. Each magnet pocket is substantially rectangular in cross-sectional shape and is configured to facilitate insertion of a permanent magnet into, and retention of the permanent magnet within, the magnet pocket. The rotor assembly further defines at least one rotor notch disposed between each magnet pocket and the radially outboard surface.
摘要翻译：内部永磁电动机包括设置在定子组件内的转子组件。转子组件被配置为相对于定子组件围绕中心轴线旋转。转子组件沿着转子组件的径向外侧表面限定转子组件内的多个磁体凹部。每个磁体袋基本上是矩形的横截面形状，并且构造成便于将永磁体插入磁体袋中并将永磁体保持在磁体袋内。转子组件进一步限定设置在每个磁体槽和径向外侧表面之间的至少一个转子槽。

8. 发明授权

US09634530B2 Interior permanent magnet motor with shifted rotor laminations 有权
公开(公告)号：US09634530B2
公开(公告)日：2017-04-25
申请号：US13839225
申请日：2013-03-15
申请人： Steven D. Klein , Jeffrey T. Klass , Mohammed R. Islam , Mohammad S. Islam , Mazharul H. Chowdhury
发明人： Steven D. Klein , Jeffrey T. Klass , Mohammed R. Islam , Mohammad S. Islam , Mazharul H. Chowdhury
IPC分类号： H02K1/27 , H02K15/03 , H02K29/03 , H02K1/28 , H02K16/02
CPC分类号： H02K1/276 , H02K1/28 , H02K15/03 , H02K16/02 , H02K29/03 , H02K2201/06 , Y10T29/49012
摘要： A rotor comprises a first rotor lamination and a second rotor lamination. The first rotor lamination and the second rotor lamination are configured for defining, when joined into rotor assembly, a central axis of rotation and a plurality of interior magnet pockets disposed symmetrically about the central axis of rotation, each pocket of the plurality of interior magnet pockets is configured for housing and retaining a permanent magnet. A method of forming a rotor comprises forming a first rotor lamination and a second rotor lamination, rotating the second rotor lamination about an axis of symmetry of the second rotor lamination; and mating the first rotor lamination to the second rotor lamination such that a first notch of the first rotor lamination is disposed adjacent to the first notch of the second rotor lamination.

9. 发明授权

US08960020B2 Non-contacting torque sensor with injection molded magnets 有权
标题翻译：具有注塑磁铁的非接触式扭矩传感器
公开(公告)号：US08960020B2
公开(公告)日：2015-02-24
申请号：US13836922
申请日：2013-03-15
申请人： Mohammad S. Islam , Mazharul H. Chowdhury
发明人： Mohammad S. Islam , Mazharul H. Chowdhury
IPC分类号： G01L3/00 , G01L3/14 , G01L3/10 , G01L5/22
CPC分类号： G01L3/104 , G01L5/221
摘要： A non-contacting torque sensor comprises a magnetic flux generating rotor and a magnetic flux detecting probe. The magnetic flux generating rotor is disposed axially between a first stator and a second stator and has a radially outboard surface and plurality of N pole magnets and S pole magnets alternatingly disposed proximate the radially outboard surface. Each stator has a plurality of stator teeth, with each one of said plurality of stator teeth corresponding to a unique one of said plurality of N pole magnets and S pole magnets. The magnetic flux detecting probe is disposed at a distance from the radially outboard surface and configured for detecting variations in magnetic flux produced by the magnetic flux generating rotor to detect a change of a relative twist between the magnetic flux generating rotor and the first stator and second stator. The N pole magnets and S pole magnets are injection molded.
摘要翻译：非接触转矩传感器包括磁通发生转子和磁通量检测探头。磁通发生转子轴向设置在第一定子和第二定子之间，并且具有径向外侧表面和多个N极磁体和S极磁体，其交替地设置在径向外侧表面附近。每个定子具有多个定子齿，所述多个定子齿中的每一个对应于所述多个N极磁体和S极磁体中唯一的一个。所述磁通检测用探针配置在距离所述径向外侧表面一定距离处，并被配置为检测由所述磁通发生转子产生的磁通量的变化，以检测所述磁通量产生转子和所述第一定子之间的相对扭转的变化，以及所述第二定子定子。 N极磁体和S极磁体注塑成型。

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