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1. 发明授权

US07088077B2 Position-sensorless control of interior permanent magnet machines 有权
标题翻译：内置永磁机的无位置传感器控制
公开(公告)号：US07088077B2
公开(公告)日：2006-08-08
申请号：US10984178
申请日：2004-11-09
申请人： James M. Nagashima , Khwaja M. Rahman , Nitinkumar R. Patel , Steven E. Schulz , Terence G. Ward , Stanley K. Fujii
发明人： James M. Nagashima , Khwaja M. Rahman , Nitinkumar R. Patel , Steven E. Schulz , Terence G. Ward , Stanley K. Fujii
IPC分类号： H02P9/00 , H02P7/00
CPC分类号： H02P21/04 , H02P21/0089 , H02P21/22 , H02P29/02
摘要： A method of controlling an IPM machine having a salient rotor. Stator terminal signals are measured and rotated to obtain synchronous reference frame current signals. A rotor position is estimated based on an impedance generated using the rotor and included in the current signals. The estimated rotor position is used to control the machine. An alternator-starter system in which this method is used can provide high cranking torque and generation power over a wide speed range while providing operational efficiency.
摘要翻译：一种控制具有显着转子的IPM机的方法。定子端子信号被测量和旋转以获得同步参考帧电流信号。基于使用转子产生的并且包括在电流信号中的阻抗来估计转子位置。估计的转子位置用于控制机器。使用该方法的交流发电机 - 起动器系统可以在宽的速度范围内提供高起动转矩和发电功率，同时提供操作效率。

2. 发明授权

US07262536B2 Gearless wheel motor drive system 有权
标题翻译：无齿轮电机驱动系统
公开(公告)号：US07262536B2
公开(公告)日：2007-08-28
申请号：US10903929
申请日：2004-07-29
申请人： Khwaja M. Rahman , Silva Hiti , Nitinkumar R. Patel , Terence G. Ward , James M. Nagashima , Fabio Crescimbini , Federico Caricchi
发明人： Khwaja M. Rahman , Silva Hiti , Nitinkumar R. Patel , Terence G. Ward , James M. Nagashima , Fabio Crescimbini , Federico Caricchi
IPC分类号： H02K21/12
CPC分类号： H02K1/2793 , B60K6/26 , B60K7/0007 , B60K2007/0038 , B60K2007/0092 , B60L1/02 , B60L3/003 , B60L3/0046 , B60L3/0061 , B60L7/14 , B60L11/1803 , B60L11/1881 , B60L15/025 , B60L15/06 , B60L15/08 , B60L15/20 , B60L15/2009 , 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 fraction motor includes 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。分数马达包括具有用于产生磁场的线圈的定子，磁耦合到定子并机械地连接到输出轴的环形转子安装在环形转子上。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。

3. 发明授权

US07332837B2 Cooling and handling of reaction torque for an axial flux motor 有权
标题翻译：冷却和处理轴向通量电机的反作用力矩
公开(公告)号：US07332837B2
公开(公告)日：2008-02-19
申请号：US10909250
申请日：2004-07-29
申请人： Terence G. Ward , Khwaja M. Rahman , James M. Nagashima , Fabio Crescimbini , Federico Caricchi , Giorgio Lucchi
发明人： Terence G. Ward , Khwaja M. Rahman , James M. Nagashima , Fabio Crescimbini , Federico Caricchi , Giorgio Lucchi
IPC分类号： H02K9/00
CPC分类号： H02K3/46 , B60L1/02 , B60L3/0061 , B60L15/025 , B60L2220/14 , B60L2220/16 , B60L2220/50 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/427 , B60L2240/429 , B60L2270/145 , H02K1/182 , H02K1/2793 , H02K5/20 , H02K7/14 , H02K9/22 , H02K21/24 , H02P21/00 , Y02T10/641 , Y02T10/643
摘要： Methods and apparatus are provided for an axial electric motor. The apparatus comprises, a stator having coils thereon for producing a magnetic field, a rotor rotated by the magnetic field, an output shaft coupled to the rotor, and a ring incorporating a coolant channel circumferentially engaging the stator for absorbing heat and reaction torque from the stator. It is preferable that that the ring have inwardly extending teeth that mesh with the coils on the stator. The space between the teeth and the coils is preferably filled with a substantially solid thermally conductive material to transmit stator reaction torque to the teeth and cool the stator. The coils are preferably formed from a flat ribbon a portion of whose principal surface is perpendicular to the teeth. A supporting frame is desirably fixedly coupled to the ring and rotatably coupled to the output shaft.
摘要翻译：为轴向电动机提供了方法和装置。该装置包括：定子，其上具有用于产生磁场的线圈，通过磁场旋转的转子;耦合到转子的输出轴;以及环，其包括周向地接合定子的冷却剂通道，用于吸收来自定子。优选地，环具有与定子上的线圈啮合的向内延伸的齿。齿和线圈之间的空间优选地填充有基本上固体的导热材料，以将定子反作用扭矩传递到齿并冷却定子。线圈优选由扁平带形成，其主表面垂直于齿的一部分。支撑框架期望地固定地联接到环并可旋转地联接到输出轴。

4. 发明授权

US06768932B2 Wheel motor system 有权
标题翻译：车轮电机系统
公开(公告)号：US06768932B2
公开(公告)日：2004-07-27
申请号：US10309784
申请日：2002-12-04
申请人： George M. Claypole , Bruce Edward Zemke , Cheuk S. Ng , Douglas Lee Wickham , Milos Stakich , Chris J. Karras , James M. Nagashima , Khwaja M. Rahman , Terence G. Ward
发明人： George M. Claypole , Bruce Edward Zemke , Cheuk S. Ng , Douglas Lee Wickham , Milos Stakich , Chris J. Karras , James M. Nagashima , Khwaja M. Rahman , Terence G. Ward
IPC分类号： G01M138
CPC分类号： B60T1/065 , B23P2700/50 , B60G3/18 , B60G13/14 , B60G17/0195 , B60G2200/10 , B60G2204/115 , B60G2204/20 , B60G2206/50 , B60G2206/99 , B60G2300/50 , B60G2300/60 , B60G2800/21 , B60G2800/802 , B60G2800/91 , B60G2800/92 , B60G2800/963 , B60K7/0007 , B60K2001/003 , B60K2007/0038 , B60K2007/0092 , B60L3/0061 , B60L11/14 , B60L11/1887 , B60L2200/22 , B60L2220/20 , B60L2220/44 , B60L2240/12 , B60L2240/36 , B60T1/10 , B60T8/00 , B60T13/586 , B60T13/66 , B60T13/662 , B60T2270/82 , B62B5/0026 , B62B5/004 , Y02T10/70 , Y02T10/7077 , Y02T90/34
摘要： A wheel motor traction assembly configured for use on a light duty vehicle adaptable for electric traction. The wheel motor traction assembly includes a wheel, a brake disc operatively connected to the wheel, a motor operatively connected to the wheel and a motor housing operatively connected to the motor. The motor housing has structural connectors for steering and suspension systems on a vehicle chassis and has a brake caliper operatively connected thereto. A parking brake caliper may also be connected to the motor housing for connection to a parking brake cable on the chassis. The motor housing is configured to bear vehicle chassis loads as the motor housing structurally interconnects the wheel to the chassis through the structural connectors.
摘要翻译：车轮电动机牵引组件，其配置用于适用于电力牵引的轻型车辆上。车轮马达牵引组件包括轮，可操作地连接到车轮的制动盘，可操作地连接到车轮的马达和可操作地连接到马达的马达壳体。马达壳体具有用于车辆底盘上的转向和悬挂系统的结构连接器，并且具有与其可操作地连接的制动钳。驻车制动钳也可以连接到电机壳体上，以连接到底盘上的驻车制动电缆。电动机壳体构造成承受车辆底盘负载，因为电动机壳体通过结构连接器将车轮结构地连接到机架。

5. 发明授权

US06979968B2 Method and system for managing processor execution time utilizing variable frequency switching 有权
标题翻译：使用可变频率切换管理处理器执行时间的方法和系统
公开(公告)号：US06979968B2
公开(公告)日：2005-12-27
申请号：US10676529
申请日：2003-10-01
申请人： James M. Nagashima , Thomas P. O'Meara , Nitinkumar R. Patel , Steven E. Schulz
发明人： James M. Nagashima , Thomas P. O'Meara , Nitinkumar R. Patel , Steven E. Schulz
IPC分类号： H02P3/00 , H02P5/00 , H02P23/00
CPC分类号： H02P23/0004
摘要： The present invention includes a method for managing processor execution time in a motor controller. The method includes receiving motor speed data, comparing the received motor speed data to predetermined motor speed ranges, determining a motor speed range based on the comparison, and modulating an inverter switching frequency of the motor controller processor based on the motor speed range. The step of receiving motor speed data may include receiving machine terminal information, processing the received machine terminal information utilizing a sensorless control algorithm, and determining motor speed data based on the processed information. The step of modulating the inverter switching frequency may include determining a modified inverter switching frequency value based on the determined motor speed range and providing the modified inverter switching frequency value to a processor control algorithm. In one embodiment, the processor control algorithm modifies the inverter switching frequency based on the modified inverter switching frequency value.
摘要翻译：本发明包括一种用于在马达控制器中管理处理器执行时间的方法。该方法包括接收电动机速度数据，将接收到的电动机速度数据与预定的电动机速度范围进行比较，基于比较确定电动机速度范围，以及基于电动机速度范围来调制电动机控制器处理器的逆变器开关频率。接收电动机速度数据的步骤可以包括接收机器终端信息，利用无传感器控制算法处理所接收的机器终端信息，以及基于处理的信息确定电动机速度数据。调制逆变器开关频率的步骤可以包括基于所确定的电动机速度范围确定修正的逆变器开关频率值，并将修改的逆变器开关频率值提供给处理器控制算法。在一个实施例中，处理器控制算法基于经修改的逆变器开关频率值来修改逆变器开关频率。

6. 发明授权

US07843162B2 Current regulator and current control method and system for AC motors 有权
标题翻译：交流电机的电流调节器和电流控制方法及系统
公开(公告)号：US07843162B2
公开(公告)日：2010-11-30
申请号：US12048071
申请日：2008-03-13
申请人： Bonho Bae , Nitinkumar R. Patel , Steven E. Schulz , James M. Nagashima , Jung Sik Yim , Seung Ki Sul
发明人： Bonho Bae , Nitinkumar R. Patel , Steven E. Schulz , James M. Nagashima , Jung Sik Yim , Seung Ki Sul
IPC分类号： H02P27/04
CPC分类号： H02P21/22
摘要： Methods and systems are provided for controlling an AC motor via an inverter. The method includes determining a delay-compensated offset based on a synchronous frame current, producing a current error based on a synchronous frame current and a commanded current, producing a voltage error based on an anti-windup offset and the current error, producing a commanded voltage based on the delay-compensated offset and the voltage error, and providing the inverter with the commanded voltage.
摘要翻译：提供了用于通过逆变器控制AC电动机的方法和系统。该方法包括基于同步帧电流确定延迟补偿的偏移，基于同步帧电流和指令电流产生电流误差，产生基于抗饱和偏移和当前误差的电压误差，产生命令基于延迟补偿偏移和电压误差的电压，并向逆变器提供指令电压。

7. 发明授权

US07002318B1 Position sensor fault tolerant control for automotive propulsion system 有权
标题翻译：汽车推进系统的位置传感器容错控制
公开(公告)号：US07002318B1
公开(公告)日：2006-02-21
申请号：US10948630
申请日：2004-09-23
申请人： Steven E. Schulz , Sean E Gleason , Nitinkumar R. Patel , James M. Nagashima , Yu-Seok Jeong , Seung Ki Sul , Michael Milani
发明人： Steven E. Schulz , Sean E Gleason , Nitinkumar R. Patel , James M. Nagashima , Yu-Seok Jeong , Seung Ki Sul , Michael Milani
IPC分类号： H02P7/50 , B80L3/00
CPC分类号： B60L3/0038 , H02P2203/05 , Y02T10/642
摘要： A control system for a motor including a rotor comprises a sensorless sensor module that includes a saliency-based estimator module that generates a first rotor position signal based on saliency and a back electromotive force (emf) estimator module that generates a second rotor position signal based on back emf. A selector selects the first rotor position signal for rotor speeds below a first rotor speed and the second rotor position signal for rotor speeds above the first rotor speed. A rotor position sensor senses a position of the rotor and generates a third rotor position signal. A fault detection module senses faults in the rotor position sensor and outputs the third rotor position signal when a fault is not detected and one of the first and second rotor position signals when the fault is detected. An indirect field oriented control (IFOC) system controls the motor based on a selected one of the first, second and third rotor position signals.
摘要翻译：一种用于包括转子的电动机的控制系统包括无传感器传感器模块，其包括基于显着性产生第一转子位置信号的基于显着的估计器模块和产生基于第二转子位置信号的反电动势（emf）估计器模块在后面emf 选择器选择转子速度低于第一转子速度的第一转子位置信号和用于转子速度高于第一转子速度的第二转子位置信号。转子位置传感器感测转子的位置并产生第三转子位置信号。当检测到故障时，故障检测模块检测转子位置传感器中的故障并输出第三转子位置信号，当检测到故障时，第一和第二转子位置信号中的一个。间接磁场定向控制（IFOC）系统基于第一，第二和第三转子位置信号中选定的一个来控制电动机。

8. 发明授权

US06894454B2 Position sensorless control algorithm for AC machine 有权
标题翻译：交流电机无位置传感器控制算法
公开(公告)号：US06894454B2
公开(公告)日：2005-05-17
申请号：US10268503
申请日：2002-10-10
申请人： Nitinkumar R. Patel , Steven E. Schulz , James M. Nagashima , Seung Ki Sul , Yo-Chan Son , Bon-Ho Bae
发明人： Nitinkumar R. Patel , Steven E. Schulz , James M. Nagashima , Seung Ki Sul , Yo-Chan Son , Bon-Ho Bae
IPC分类号： H02P21/00 , H02P1/46 , H02P6/18 , H02P27/04
CPC分类号： H02P21/00 , H02P21/26 , H02P21/32
摘要： A control system for an electric motor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a first motor speed control block in the controller injecting a high frequency signal into the electric motor to determine the speed and position of the electric motor, a second motor speed control block in the controller detecting the back electromotive force to determine the speed and position of the electric motor, and a transition control block in said controller to vary operation between the first motor speed control block and the second motor speed control block.
摘要翻译：一种用于电动机的控制系统，包括用于向电动机提供电力的逆变器，用于控制逆变器的控制器，控制器中的第一电动机速度控制块，将高频信号注入电动机以确定速度和位置所述电动机，所述控制器中的第二电动机速度控制块检测所述反电动势以确定所述电动机的速度和位置;以及所述控制器中的转换控制块，以改变所述第一电动机速度控制块和所述第二电动机速度控制块之间的操作电机速度控制块。

9. 发明授权

US06989641B2 Methods and apparatus for fault-tolerant control of electric machines 有权
标题翻译：电机容错控制方法与装置
公开(公告)号：US06989641B2
公开(公告)日：2006-01-24
申请号：US10452817
申请日：2003-06-02
申请人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Yu-Seok Jeong , Seung Ki Sul
发明人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Yu-Seok Jeong , Seung Ki Sul
IPC分类号： B60L3/00
CPC分类号： G05B19/4062 , G05B2219/42329 , H02P29/032
摘要： A method for controlling an electric machine having current sensors for less than every phase of the electric machine includes operating a processor to perform a test to preliminarily determine whether a fault exists in one or more of the current sensors and a test to finally determine that the fault exists in the one or more current sensors. The method further includes operating the processor to utilize a state observer of the electric machine to estimate states of the electric machine, wherein the state observer is provided state input measurements from each non-faulty current sensor, if any. Measurements from the current sensor or sensors determined to be faulty are disregarded. The processor controls the electric machine utilizing results from the state observer.
摘要翻译：用于控制具有小于电机每相的电流传感器的电机的方法包括操作处理器以执行测试，以初步确定在一个或多个电流传感器中是否存在故障，并且进行测试以最终确定一个或多个电流传感器存在故障。该方法还包括操作处理器以利用电机的状态观察器来估计电机的状态，其中状态观察器被提供来自每个非故障电流传感器的状态输入测量值（如果有的话）。来自当前传感器或被确定为有故障的传感器的测量被忽略。处理器利用来自状态观测器的结果控制电机。

10. 发明授权

US06924617B2 Position sensorless control algorithm for AC machine 有权
标题翻译：交流电机无位置传感器控制算法
公开(公告)号：US06924617B2
公开(公告)日：2005-08-02
申请号：US10601726
申请日：2003-06-23
申请人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Seung Ki Sul , Bon-Ho Bae
发明人： Steven E. Schulz , Nitinkumar R. Patel , James M. Nagashima , Seung Ki Sul , Bon-Ho Bae
IPC分类号： H02P6/18 , H02P21/00 , H02P1/46 , G05B11/42 , H02P1/18
CPC分类号： H02P6/18 , H02P6/181 , H02P21/00 , H02P21/0089 , H02P21/12 , H02P21/28 , H02P2203/05 , H02P2207/05
摘要： A control system for an electric motor having a stator and rotor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a low speed control block to estimate the rotor angular position using stator current components operating in the controller, a high speed control block to estimate the rotor angular position using stator current components and stator flux position operating in the controller, a transition switch in the controller to vary operation between the low speed control block and the high speed control block, and where the inverter is controlled by six step operation.
摘要翻译：一种具有定子和转子的电动机的控制系统，该定子和转子包括用于向电动机供电的逆变器，用于控制逆变器的控制器，使用在控制器中操作的定子电流分量来估计转子角位置的低速控制块，高速控制块，用于使用定子电流分量和在控制器中操作的定子磁通位置来估计转子角位置，控制器中的转换开关改变低速控制块和高速控制块之间的操作，并且其中变频器由六步操作控制。

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