公开(公告)号：US08957563B2

公开(公告)日：2015-02-17

申请号：US13314065

申请日：2011-12-07

Applicant: Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

Inventor： Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

IPC: H02K1/06

CPC classification number: H02K1/24 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08390240B2

公开(公告)日：2013-03-05

申请号：US12137340

申请日：2008-06-11

Applicant: Constantin C. Stancu ,  Silva Hiti ,  Robert T. Dawsey ,  Erik Hatch ,  Matthew D. Laba ,  Peter J. Savagian

Inventor： Constantin C. Stancu ,  Silva Hiti ,  Robert T. Dawsey ,  Erik Hatch ,  Matthew D. Laba ,  Peter J. Savagian

IPC: H02P23/00

CPC classification number: H02P21/14 ,  B60L15/025 ,  B60L2220/12 ,  B60L2220/14 ,  Y02T10/643

Abstract: Systems and methods are provided for an automotive drive system using an absolute position sensor for field-oriented control of an induction motor. An automotive drive system comprises an induction motor having a rotor, and a position sensor coupled to the induction motor. The position sensor is configured to sense an absolute angular position of the rotor. A processor may be coupled to the position sensor and configured to determine a relative angular position of the rotor based on a difference between the absolute angular position and an initial angular position obtained when the induction motor is started. A controller may be coupled to the induction motor and the processor and configured to provide field-oriented control of the induction motor based on the relative angular position of the rotor.

Abstract translation: 为使用绝对位置传感器用于感应电动机的场定向控制的汽车驱动系统提供系统和方法。 汽车驱动系统包括具有转子的感应电动机和耦合到感应电动机的位置传感器。 位置传感器构造成感测转子的绝对角位置。 处理器可以耦合到位置传感器并且被配置为基于绝对角位置和当感应电动机启动时获得的初始角位置之间的差来确定转子的相对角位置。 控制器可以耦合到感应电动机和处理器并且被配置为基于转子的相对角位置来提供感应电动机的场定向控制。

公开(公告)号：US08018187B2

公开(公告)日：2011-09-13

申请号：US12348684

申请日：2009-01-05

Applicant: Steven E. Schulz ,  Constantin C. Stancu ,  Yo Chan Son

Inventor： Steven E. Schulz ,  Constantin C. Stancu ,  Yo Chan Son

IPC: H02P1/46

CPC classification number: H02P6/185 ,  H02P6/183 ,  H02P21/18 ,  H02P21/32 ,  H02P2203/11

Abstract: Methods and apparatus are provided for aligning a control reference axis with a magnetic north of a permanent magnet motor. The method includes the steps of injecting a predetermined stator current on an estimated reference axis of the permanent magnet motor and introducing predetermined error on the estimated reference axis. The method further includes the steps of determining if a speed of the permanent magnet motor is greater than a predetermined threshold speed and setting the control reference axis to 180° added to the estimated reference axis if the speed of the permanent magnet motor is greater than the predetermined threshold speed or setting the control reference axis to the estimated reference axis if the speed of the permanent magnet motor is less than or equal to the predetermined threshold speed.

Abstract translation: 提供了用于使控制参考轴与永磁电动机的磁北对准的方法和装置。 该方法包括以下步骤：将预定定子电流注入到永磁电动机的估计参考轴上，并将预定误差引入估计的参考轴。 该方法还包括以下步骤：如果永磁电动机的速度大于预定阈值速度，则将该控制基准轴设定为估计参考轴的180°，如果永磁电动机的速度大于 如果永磁电动机的速度小于或等于预定阈值速度，则将控制参考轴设置为估计的参考轴。

公开(公告)号：US07936083B2

公开(公告)日：2011-05-03

申请号：US12117543

申请日：2008-05-08

Applicant: Constantin C. Stancu ,  Robert T. Dawsey ,  Mark L. Selogie

Inventor： Constantin C. Stancu ,  Robert T. Dawsey ,  Mark L. Selogie

IPC: B06L1/00 ,  H02J1/00

CPC classification number: H02M1/10 ,  Y10T29/49002 ,  Y10T307/658 ,  Y10T307/675

Abstract: An embodiment of a system for multiple source power conversion is implemented in a vehicle that includes an alternating current (AC) power source and first and second direct current (DC) power sources. The system includes an inverter, a DC-to-DC converter, and a controller. The controller receives external commands, inverter feedback signals, and DC-to-DC converter feedback signals, and executes and inverter control algorithm and DC-to-DC converter control algorithm. An embodiment of a method for multiple source power conversion between an AC power source, and first and second DC power sources includes receiving external commands from a remote source, inverter feedback signals from an inverter, and DC-to-DC converter feedback signals from a DC-to-DC converter. The method also includes executing an inverter control algorithm and a DC-to-DC converter control algorithm to generate drive signals for the inverter and DC-to-DC converter, respectively, based on the received commands and feedback signals.

Abstract translation: 用于多源功率转换的系统的实施例在包括交流（AC）电源和第一和第二直流（DC）电源的车辆中实现。 该系统包括逆变器，DC-DC转换器和控制器。 控制器接收外部命令，逆变器反馈信号和DC-DC转换器反馈信号，并执行逆变器控制算法和DC-DC转换器控制算法。 一种用于在AC电源和第一和第二DC电源之间进行多源电力转换的方法的实施例包括从远程源接收外部命令，来自逆变器的逆变器反馈信号和来自逆变器的DC-DC转换器反馈信号 直流到直流转换器。 该方法还包括执行逆变器控制算法和DC-DC转换器控制算法，以分别基于接收到的命令和反馈信号来产生逆变器和DC-DC转换器的驱动信号。

公开(公告)号：US20100295411A1

公开(公告)日：2010-11-25

申请号：US12469191

申请日：2009-05-20

Applicant: ERIK HATCH ,  CONSTANTIN C. STANCU ,  PETER J. SAVAGIAN

Inventor： ERIK HATCH ,  CONSTANTIN C. STANCU ,  PETER J. SAVAGIAN

IPC: H02K1/22 ,  H02K15/02

CPC classification number: H02K1/24 ,  H02K15/022 ,  Y02P80/30 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A rotor assembly is assembled by providing an elongated rectangular strip of material having a first edge and a second edge defining a width, cutting the elongated rectangular strip to form a first patterned strip having a first side corresponding to the first edge, winding the first patterned strip portion around the perimeter of the rotor core such that the first edge is adjacent to the perimeter and the patterned strip portion forms a continuous laminated ring structure. Two laminated ring structures can be cut from a single strip, thereby reducing waste material and forming a strong structure.

Abstract translation: 转子组件通过提供细长矩形的材料条来组装，其具有限定宽度的第一边缘和第二边缘，切割细长矩形条以形成具有第一边对应于第一边缘的第一图案化条，卷绕第一图案 带状部分围绕转子芯的周边，使得第一边缘邻近周边，并且图案化条带部分形成连续的层叠环结构。 可以从单个条切割两个层压环结构，从而减少废料并形成强结构。

公开(公告)号：US07633194B2

公开(公告)日：2009-12-15

申请号：US11553028

申请日：2006-10-26

Applicant: Robert T Dawsey ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

Inventor： Robert T Dawsey ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

IPC: H02K9/08

CPC classification number: H02K1/20 ,  B60L1/003 ,  B60L3/0061 ,  B60L2220/46 ,  B60L2220/50 ,  B60L2240/425 ,  H02K5/20 ,  H02K9/10 ,  H02K9/19 ,  Y02T10/641 ,  Y02T10/642

Abstract: A coaxial stack of laminations for a stator of an electrical machine uses laminations that are substantially identical and in direct abutment with one another. Each of the laminations has an outer periphery and an inner periphery with the outer periphery being defined by an array of outwardly projecting pins and the inner periphery being defined by an array of inwardly projecting teeth. The outwardly projecting pins cooperate with a jacket surrounding the stack to provide a cooling space through which cooling liquid flows while the teeth provide spaces therebetween for receiving for receiving stator windings. The number of pins (npin) is proportional to the number of teeth (nth) according to the relationship (2K+1)/(2Kth) times the number of teeth (nth), where K is a selected integer number and Kth is the number of teeth past which each lamination is rotated with respect to adjacent laminations so that spaces between the teeth of adjacent laminations are aligned.

Abstract translation: 用于电机的定子的同轴叠层叠片使用基本上相同并且彼此直接邻接的叠片。 每个叠片具有外周边和内周边，其外围由向外突出的销的阵列限定，并且内周由内向突出的齿阵列限定。 向外突出的销与围绕堆叠的护套配合以提供冷却空间，冷却液通过该空间流动，同时齿在其间提供空间用于接收定子绕组。 根据与齿数（nth）的关系（2K + 1）/（2Kth）乘以（n）的关系（n），针数（npin）与齿数（nth）成比例，其中K是选定的整数，Kth是 每个层叠相对于相邻叠片旋转的齿数，使得相邻叠片的齿之间的空间对准。

公开(公告)号：US20090230913A1

公开(公告)日：2009-09-17

申请号：US12047123

申请日：2008-03-12

Applicant: Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

Inventor： Silva HITI ,  David TANG ,  Brian A. WELCHKO ,  Milun PERISIC ,  Constantin C. STANCU

IPC: H02P23/10 ,  H02P27/06

CPC classification number: H02P27/06 ,  H02P3/22 ,  H02P23/10

Abstract: Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.

Abstract translation: 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机，为永磁电动机提供电力控制的逆变器，向逆变器供电的直流（DC）总线，以及 处理器。 处理器产生操作控制信号，并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号，处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号，以通过无源负载从DC总线耗散能量，包括电动机的电动机绕组的被动负载 。

公开(公告)号：US20090230909A1

公开(公告)日：2009-09-17

申请号：US12047120

申请日：2008-03-12

Applicant: SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

Inventor： SILVA HITI ,  DAVID TANG ,  BRIAN A. WELCHKO ,  MILUN PERISIC ,  CONSTANTIN C. STANCU

IPC: G05B9/03 ,  H02P23/10 ,  H02P27/06

CPC classification number: H02P21/0003 ,  H02M2001/322

Abstract: Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.

Abstract translation: 提供了用于对在电动机系统中的电动机控制电路供电的直流（DC）总线的放电的方法和装置。 该方法包括以下步骤：响应于检测到预定的放电信号，产生包括用于从DC总线通过无源负载消耗能量的相电流的操作控制信号，其中被动负载包括电动机的电动机绕组 的电机系统。 该方法还包括向电动机控制电路提供操作控制信号以通过电动机控制电路和电动机的电动机绕组排放DC总线的步骤。

公开(公告)号：US07479723B2

公开(公告)日：2009-01-20

申请号：US11668910

申请日：2007-01-30

Applicant: Robert T Dawsey ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

Inventor： Robert T Dawsey ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

IPC: H02K1/27

CPC classification number: H02K1/2766

Abstract: A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.

Abstract translation: 用于内部永磁体机器的转子具有转子体，其具有输出轴和填充有磁性材料的第一腔体。 第二空腔设置在第一空腔的内侧，并且不填充磁性材料。 非磁性棒延伸穿过第二腔并突出超过转子体的端面。 杆被压配合在形成在邻近转子体的端面设置的非磁性端板中的盲孔中。 收缩盘在输出轴的突出端处与端板邻接而收缩。 为了防止感应电压在由杆和端板形成的保持架中产生电流，在端板中的棒和盲孔之间设置氧化物层。

公开(公告)号：US20080198633A1

公开(公告)日：2008-08-21

申请号：US11675203

申请日：2007-02-15

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

IPC: H02M3/335

CPC classification number: H02M3/00

Abstract: A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated that is representative of a difference between the desired current flow and an actual current flow through the electrical component. A duty cycle for the switch is calculated based on the signal representative of the difference and a voltage generated by the voltage source.

Abstract translation: 提供了一种用于操作具有电气部件的功率转换器和耦合到电压源的开关的方法和系统。 接收代表通过电气部件的期望电流的信号。 产生代表期望电流与通过电气部件的实际电流之间的差异的信号。 基于代表差异的信号和由电压源产生的电压来计算开关的占空比。