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21. 发明授权

US07956563B2 System for using a multi-phase motor with a double-ended inverter system 有权
标题翻译：使用带有双端逆变器系统的多相电机的系统
公开(公告)号：US07956563B2
公开(公告)日：2011-06-07
申请号：US12110946
申请日：2008-04-28
申请人： Milun Perisic , Silva Hiti , Brian A. Welchko , Sibaprasad Chakrabarti , James M. Nagashima , Gregory S. Smith , George John
发明人： Milun Perisic , Silva Hiti , Brian A. Welchko , Sibaprasad Chakrabarti , James M. Nagashima , Gregory S. Smith , George John
IPC分类号： H02P27/06 , H02P4/00
CPC分类号： H02P4/00 , B60L3/0046 , B60L11/005 , B60L11/14 , B60L11/1803 , B60L11/1868 , B60L11/1887 , B60L2210/40 , B60L2210/46 , B60L2220/58 , H02P25/22 , Y02T10/641 , Y02T10/642 , Y02T10/70 , Y02T10/7022 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241 , Y02T90/34
摘要： Systems and apparatus are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The inverter system comprises an electric motor having a first set of windings and a second set of windings. The inverter system further comprises a first inverter coupled to the first energy source and adapted to drive the electric motor, wherein the first set of windings are coupled to the first inverter. The inverter system also comprises a second inverter coupled to the second energy source and adapted to drive the electric motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter to achieve desired power flow between the first energy source, the second energy source, and the electric motor.
摘要翻译：为具有第一能量源和第二能量源的车辆中使用的逆变器系统提供系统和装置。逆变器系统包括具有第一组绕组和第二组绕组的电动机。逆变器系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。逆变器系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。控制器耦合到第一逆变器和第二逆变器，以在第一能量源，第二能量源和电动机之间实现期望的功率流。

22. 发明授权

US07888905B2 Method and system for controlling a power inverter in electric drives 有权
标题翻译：用于控制电力变频器中的电力变换器的方法和系统
公开(公告)号：US07888905B2
公开(公告)日：2011-02-15
申请号：US12013093
申请日：2008-01-11
申请人： Brian A. Welchko , Steven E. Schultz , Silva Hiti
发明人： Brian A. Welchko , Steven E. Schultz , Silva Hiti
IPC分类号： H02P27/04
CPC分类号： H02M7/53875 , H02M2007/53876
摘要： Methods and systems for controlling a power inverter in an electric drive system of an automobile are provided. A signal controlling the power inverter is modified utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value. The signal is modified utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.
摘要翻译：提供了一种用于控制汽车电驱动系统中的电力逆变器的方法和系统。如果信号的调制指数小于第一调制指数值，则利用第一电压失真补偿方法来修改控制功率逆变器的信号。如果调制指数至少等于第一调制指数值，则利用第二电压失真补偿方法修改信号。

23. 发明申请

US20090033251A1 SERIES-COUPLED TWO-MOTOR DRIVE USING DOUBLE-ENDED INVERTER SYSTEM 有权
标题翻译：使用双端逆变器系统的串联双电机驱动
公开(公告)号：US20090033251A1
公开(公告)日：2009-02-05
申请号：US12113710
申请日：2008-05-01
申请人： Milun Perisic , Silva Hiti , Gregory S. Smith , James M. Nagashima , George John , Sibaprasad Chakrabarti , Brian A. Welchko
发明人： Milun Perisic , Silva Hiti , Gregory S. Smith , James M. Nagashima , George John , Sibaprasad Chakrabarti , Brian A. Welchko
IPC分类号： H02P5/46 , H02P4/00
CPC分类号： H02P4/00 , B60L11/005 , B60L11/123 , B60L11/18 , B60L11/1868 , B60L11/1881 , B60L15/007 , B60L15/20 , B60L2210/40 , B60L2220/42 , B60L2220/54 , B60L2220/58 , B60L2240/12 , B60L2240/14 , B60L2240/527 , B60L2240/529 , H02M7/493 , Y02T10/6217 , Y02T10/641 , Y02T10/645 , Y02T10/646 , Y02T10/7022 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275 , Y02T90/34
摘要： Systems and apparatus are provided for an inverter system for use in a vehicle. The inverter system comprises a six-phase motor having a first set of three-phase windings and a second set of three-phase windings and a three-phase motor having a third set of three-phase windings, wherein the third set of three-phase windings is coupled to the first set of three-phase windings and the second set of three-phase windings. The system further comprises a first energy source coupled to a first inverter adapted to drive the six-phase motor and the three-phase motor, wherein the first set of three-phase windings is coupled to the first inverter, and a second energy source coupled to a second inverter adapted to drive the six-phase motor and the three-phase motor, wherein the second set of three-phase windings is coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.
摘要翻译：为在车辆中使用的逆变器系统提供系统和装置。逆变器系统包括具有第一组三相绕组和第二组三相绕组的六相电动机和具有第三组三相绕组的三相电动机，其中第三组三相绕组，相绕组耦合到第一组三相绕组和第二组三相绕组。该系统还包括耦合到适于驱动六相电动机和三相电动机的第一逆变器的第一能量源，其中第一组三相绕组耦合到第一逆变器，并且耦合第二能量源涉及适于驱动六相电动机和三相电动机的第二逆变器，其中第二组三相绕组耦合到第二逆变器。控制器耦合到第一反相器和第二反相器。

24. 发明申请

US20080258673A1 METHOD AND SYSTEM FOR PULSE POSITION SCHEDULING IN ELECTRIC DRIVES 有权
标题翻译：电机驱动脉冲位置调度方法与系统
公开(公告)号：US20080258673A1
公开(公告)日：2008-10-23
申请号：US11736687
申请日：2007-04-18
申请人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
发明人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： H02P27/08 , H02M1/12
CPC分类号： H02M1/12 , H02P27/08 , H03K7/04
摘要： Method and system are provided for controlling an alternating current (AC) motor via an inverter. The method includes selecting a pulse sequencing method based on a modulation index of the inverter, and providing a voltage to the AC motor based on the pulse sequencing method. The system includes an inverter having a modulation index (Mi) and a controller coupled to the inverter. The controller selects a pulse sequencing method based on Mi and produces a signal based on the pulse sequencing method. The inverter includes a switch network producing a voltage in response to the signal, and the voltage drives the AC motor.
摘要翻译：提供了用于通过逆变器控制交流（AC）电动机的方法和系统。该方法包括基于逆变器的调制指数选择脉冲排序方法，并且基于脉冲排序方法向交流电动机提供电压。该系统包括具有调制指数（M SUB）的逆变器和耦合到逆变器的控制器。控制器选择基于M i i i的脉冲排序方法，并基于脉冲排序方法产生信号。逆变器包括响应于信号产生电压的开关网络，并且电压驱动AC电动机。

25. 发明授权

US08165737B2 Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions 有权
标题翻译：用于控制双模传动车辆电动变频器中的电力变换器的方法和系统
公开(公告)号：US08165737B2
公开(公告)日：2012-04-24
申请号：US11923287
申请日：2007-10-24
申请人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
发明人： Steven E. Schulz , Stephen T. West , Brian A. Welchko , Silva Hiti
IPC分类号： G05D3/00
CPC分类号： B60W20/15 , B60K1/02 , B60K6/365 , B60K6/445 , B60K6/52 , B60K6/547 , B60L15/20 , B60L2200/26 , B60L2240/423 , B60W10/08 , B60W20/00 , B60W2710/083 , Y02T10/6239 , Y02T10/6265 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： Methods and systems for controlling a power inverter in automobiles utilizing two-mode transmissions are provided. The various embodiments control the power inverter by, responsive to a commanded torque of the electric motor being below a first torque level, controlling the power inverter to set a switching frequency of the power inverter at a first set frequency; and, responsive to the commanded torque of the electric motor being between the first torque level and a second torque level, controlling the power inverter to determine the switching frequency of the power inverter as a function of the commanded torque of the electric motor while maintaining the switching frequency above a dynamic frequency limit. The method reduces switching frequencies in the inverter at high commanded torques, while maintaining the switching frequencies above dynamic frequency limit that provides effective control over the motor.
摘要翻译：提供了利用双模传输来控制汽车中的功率逆变器的方法和系统。各种实施例通过响应于电动机的指令转矩低于第一转矩水平来控制功率逆变器，控制功率逆变器将功率逆变器的开关频率设定在第一设定频率; 并且响应于所述电动机的所述指令转矩在所述第一转矩水平和第二转矩水平之间，控制所述电力逆变器，以根据所述电动机的指令转矩来确定所述电力逆变器的开关频率，同时保持开关频率高于动态频率限制。该方法以较高的指令转矩降低变频器的开关频率，同时保持开关频率高于动态频率限制，从而提供对电机的有效控制。

26. 发明授权

US07944161B2 DC bus discharge in an electric motor system 有权
标题翻译：直流母线放电在电动马达系统中
公开(公告)号：US07944161B2
公开(公告)日：2011-05-17
申请号：US12047123
申请日：2008-03-12
申请人： Silva Hiti , David Tang , Brian A. Welchko , Milun Perisic , Constantin C. Stancu
发明人： Silva Hiti , David Tang , Brian A. Welchko , Milun Perisic , Constantin C. Stancu
IPC分类号： H02P21/00
CPC分类号： H02P27/06 , H02P3/22 , H02P23/10
摘要： 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.
摘要翻译：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。

27. 发明授权

US07834574B2 Phase current sampling and regulating apparatus and methods, and electric motor drive systems 有权
标题翻译：相电流采样和调节装置及方法以及电动机驱动系统
公开(公告)号：US07834574B2
公开(公告)日：2010-11-16
申请号：US11944781
申请日：2007-11-26
申请人： Stephen T. West , Brian A. Welchko , Steven E. Schulz , Silva Hiti
发明人： Stephen T. West , Brian A. Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： H02P1/32
CPC分类号： G01R19/2509 , G01R19/2513 , G01R31/007 , H02P21/00
摘要： In various embodiments, a phase current sampling apparatus (300, 600, FIGS. 3, 6), an electric motor drive system (100, FIG. 1), and a motor vehicle (1200, FIG. 12) include switching circuitry adapted to receive first and second phase current waveforms. The switching circuitry provides the first phase current waveform during at least two offset sampling instants, and provides the second phase current waveform during a reference sampling instant. An analog-to-digital converter is adapted to sample the first phase current waveform at the offset sampling instants, and to sample the second phase current waveform at the reference sampling instant. An embodiment of a method for regulating phase current waveforms includes an analog-to-digital converter generating samples of a first phase current waveform at sampling instants that occur before and after a reference sampling instant, and generating a sample of a second phase current waveform at the reference sampling instant.
摘要翻译：在各种实施例中，相电流采样装置（300,600，图3,6），电动机驱动系统（100，图1）和机动车辆（图12中的1200）包括适于接收第一和第二相电流波形。开关电路在至少两个偏移采样时刻提供第一相电流波形，并且在参考采样时刻期间提供第二相电流波形。模拟 - 数字转换器适于在偏移采样时刻采样第一相电流波形，并在参考采样时刻采样第二相电流波形。用于调节相电流波形的方法的实施例包括模数转换器，其在采样时刻产生在采样时刻之前和之后的采样时刻产生第一相电流波形的采样，并且产生第二相电流波形的采样参考采样时刻。

28. 发明申请

US20080304189A1 PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS 有权
标题翻译：永磁电机控制电路的保护
公开(公告)号：US20080304189A1
公开(公告)日：2008-12-11
申请号：US11758974
申请日：2007-06-06
申请人： David Tang , Brian A. Welchko , Silva Hiti , Mark L. Selogie
发明人： David Tang , Brian A. Welchko , Silva Hiti , Mark L. Selogie
IPC分类号： H02H7/09
CPC分类号： H02H7/0838
摘要： Methods and apparatus are provided for protecting a motor control circuit in a permanent magnet electric motor system. The permanent magnet electric motor system includes a permanent magnet electric motor having a predetermined number of windings corresponding to the phases of the permanent magnet electric motor and a direct current (DC) bus coupled to a power source for providing operational power for the electric motor system. A motor control circuit is connected to the DC bus for receiving the operational power therefrom and is connected to the windings of the permanent magnet electric motor for controlling the permanent magnet electric motor. A protection circuit is connected to the DC bus for receiving the voltage therefrom for operation of the protection circuit and for detecting predetermined motor control circuit fault conditions from voltage sensed on the DC bus and in response thereto providing protection for the motor control circuit.
摘要翻译：提供了用于保护永磁电动机系统中的电动机控制电路的方法和装置。永磁电动机系统包括具有对应于永磁电动机的相位的预定数量的绕组的永磁电动机和耦合到用于为电动机系统提供动力的电源的直流（DC）母线。电动机控制电路连接到DC总线，用于从其接收操作电力，并连接到用于控制永磁电动机的永磁电动机的绕组。保护电路连接到DC总线，用于从其接收电压用于保护电路的操作，并且用于从DC总线上感测到的电压检测预定的电机控制电路故障状况，并响应于此为电机控制电路提供保护。

29. 发明申请

US20080197902A1 METHOD AND APPARATUS TO REDUCE PWM VOLTAGE DISTORTION IN ELECTRIC DRIVES 有权
标题翻译：降低电动机PWM电压失真的方法和装置
公开(公告)号：US20080197902A1
公开(公告)日：2008-08-21
申请号：US11676574
申请日：2007-02-20
申请人： Brian A. Welchko , Bonho Bae , Steven E. Schulz , Silva Hiti
发明人： Brian A. Welchko , Bonho Bae , Steven E. Schulz , Silva Hiti
IPC分类号： H03K3/017
CPC分类号： H03K3/017 , H02M7/5395 , H02M2001/0025 , H02P27/06
摘要： Methods and apparatus are provided for reducing voltage distortion effects at low speed operation in electric drives. The method comprises receiving a first signal having a duty cycle with a range between minimum and maximum achievable duty cycles, producing a second duty cycle based on the minimum achievable duty cycle if the duty cycle is within a distortion range and less than a first clipping value, producing a second duty cycle based on the closer of minimum and maximum pulse widths if the duty cycle is within the distortion range and between the first and a second clipping value, producing a second duty cycle based on the maximum achievable duty cycle if the duty cycle is within the distortion range and greater than the second clipping value, and transmitting a second signal to the voltage source inverter having the second duty cycle.
摘要翻译：提供了用于在电驱动器中降低低速运行时的电压失真效应的方法和装置。该方法包括接收具有在最小和最大可实现占空比之间的范围的占空比的第一信号，如果占空比在失真范围内并小于第一限幅值，则基于最小可实现占空比产生第二占空比如果占空比在失真范围内，并且在第一和第二限幅值之间，则基于更小的最小和最大脉冲宽度产生第二占空比，如果占空比基于最大可实现的占空比，则产生第二占空比循环处于失真范围内并且大于第二限幅值，并且将第二信号发送到具有第二占空比的电压源逆变器。

30. 发明申请

US20080183405A1 TORQUE ESTIMATOR FOR IPM MOTORS 有权
标题翻译： IPM电机的扭矩估计
公开(公告)号：US20080183405A1
公开(公告)日：2008-07-31
申请号：US11668830
申请日：2007-01-30
申请人： Brian A. Welchko , Silva Hiti , Steven E. Schulz
发明人： Brian A. Welchko , Silva Hiti , Steven E. Schulz
IPC分类号： G01L3/00
CPC分类号： H02P23/14
摘要： In an embodiment of a method, the method includes measuring currents and voltages that are coupled to a motor that includes an internal permanent magnet and determining a reactive power in response to the measured currents and voltages. The method further includes estimating a first flux orthogonal to an axis of the internal permanent motor and estimating a second flux aligned with the axis of the internal permanent motor. Additionally, the method includes estimating a torque in response to the measured currents and the first and second fluxes.
摘要翻译：在方法的实施例中，该方法包括测量耦合到包括内部永磁体的电动机的电流和电压，并响应于测量的电流和电压来确定无功功率。该方法还包括估计与内部永久电动机的轴正交的第一通量，并估计与内部永久电动机的轴线对准的第二通量。另外，该方法包括响应于测量的电流和第一和第二通量来估计转矩。

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