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    SYSTEM AND METHOD FOR IMPLEMENTING A REMEDIAL ELECTRICAL SHORT
    31.
    发明申请
    SYSTEM AND METHOD FOR IMPLEMENTING A REMEDIAL ELECTRICAL SHORT 有权
    用于实施电动短路的系统和方法

    公开(公告)号：US20140070742A1

    公开(公告)日：2014-03-13

    申请号：US13611379

    申请日：2012-09-12

    申请人： Steven E. Schulz

    发明人： Steven E. Schulz

    IPC分类号： H02P6/12

    CPC分类号： H02M7/53875 ,  H02M1/32 ,  H02M1/38 ,  H02P27/08

    摘要： A vehicle includes a polyphase, permanent magnet synchronous electric machine, DC and AC buses, a battery module, a traction power inverter module (TPIM), and a controller. The controller, which is in communication with the TPIM, executes a method to detect a fault condition, fixes the pulse width modulation (PWM) duty cycles of all phases of the electric machine to 50% such that all phases switch simultaneously, and applies a polyphase OPEN state to the AC bus in response to the detected fault condition. The controller then transitions to a polyphase SHORT state by automatically inserting an adjustable deadtime at each PWM switching transition of the TPIM over a calculated ramp duration, thereby transitioning from an initial deadtime to a minimum deadtime over the calculated ramp duration. The transition reduces peak overshoot of the negative d-axis current of the machine during the fault condition.

    摘要翻译： 车辆包括多相，永磁同步电机，直流和交流总线，电池模块，牵引电力逆变器模块（TPIM）和控制器。 与TPIM通信的控制器执行检测故障状况的方法，将电机各相的脉宽调制（PWM）占空比固定为50％，使得所有相同时切换，并应用 多相OPEN状态响应于检测到的故障状况到AC总线。 然后，控制器通过在计算的斜坡持续时间内在TPIM的每个PWM切换转换期间自动插入可调节的死区时间，从而在计算的斜坡持续时间内从初始死区时间转换到最小死区时间，转换到多相短路状态。 该过渡在故障条件期间减少机器负d轴电流的峰值过冲。

    Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions
    33.
    发明授权
    Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions 有权
    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。

    METHOD AND APPARATUS FOR AVOIDING ELECTRICAL RESONANCE IN A VEHICLE HAVING A SHARED HIGH-VOLTAGE BUS
    34.
    发明申请
    METHOD AND APPARATUS FOR AVOIDING ELECTRICAL RESONANCE IN A VEHICLE HAVING A SHARED HIGH-VOLTAGE BUS 有权
    在具有共享高压总线的车辆中避免电气共振的方法和装置

    公开(公告)号：US20110109155A1

    公开(公告)日：2011-05-12

    申请号：US12614464

    申请日：2009-11-09

    申请人： Mohammad N. Anwar ,  Steven E. Schulz ,  Stephan N. Green ,  James E. Tarchinski

    发明人： Mohammad N. Anwar ,  Steven E. Schulz ,  Stephan N. Green ,  James E. Tarchinski

    IPC分类号： B60L1/00

    CPC分类号： H02M1/44 ,  B60K6/48 ,  B60L11/14 ,  B60L15/20 ,  B60L2270/145 ,  Y02T10/6221 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7275

    摘要： A method for avoiding electrical resonance in a vehicle having a high-voltage (HV) direct current (DC) bus shared by a first and a second power electronic converter device, such as an air conditioning compressor module (ACCM) and a traction power inverter (TPIM), includes determining an impedance characteristic of the bus, defining resonance points for the bus, selecting lower and upper switching frequency boundaries for the TPIM, and preventing the TPIM from operating within a range defined by these boundaries. A vehicle includes the first and second power electronic converter device, e.g., the APPM and the TPIM, the shared HV DC, and a controller having the algorithm set forth above, wherein the controller is adapted for avoiding electrical resonance in the HV DC bus by executing the algorithm.

    摘要翻译： 一种用于避免车辆中具有由第一和第二电力电子转换器装置共享的高压（HV）直流（DC）总线的方法，例如空调压缩机模块（ACCM）和牵引电力逆变器 （TPIM）包括确定总线的阻抗特性，为总线定义谐振点，为TPIM选择下限和上限开关频率边界，并防止TPIM在由这些边界限定的范围内运行。 车辆包括第一和第二电力电子转换器装置，例如APPM和TPIM，共享HV DC，以及具有上述算法的控制器，其中控制器适于避免HV DC总线中的电共振，由 执行算法。

    Phase current sampling and regulating apparatus and methods, and electric motor drive systems
    35.
    发明授权
    Phase current sampling and regulating apparatus and methods, and electric motor drive systems 有权
    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。

    Apparatus, systems, and methods for reducing voltage source inverter losses
    36.
    发明授权
    Apparatus, systems, and methods for reducing voltage source inverter losses 有权
    用于减少电压源逆变器损耗的装置，系统和方法

    公开(公告)号：US07755319B2

    公开(公告)日：2010-07-13

    申请号：US11756421

    申请日：2007-05-31

    申请人： Silva Hiti ,  Steven E. Schulz ,  Brian A Welchko

    发明人： Silva Hiti ,  Steven E. Schulz ,  Brian A Welchko

    IPC分类号： H02P27/04

    CPC分类号： H02M7/53875 ,  B60L15/025 ,  B60L2210/42 ,  B60L2240/70 ,  H02M2001/0054 ,  H02M2007/53876 ,  Y02T10/643 ,  Y02T10/7241 ,  Y02T10/7291 ,  Y02T90/16

    摘要： Apparatus, systems, and methods are provided for reducing voltage source inverter losses. One apparatus includes a sensor couplable to the motor and configured to sense an operating frequency of the motor and an amount of torque produced by the motor. The apparatus also includes a controller coupled to the sensor, the controller configured to determine a zero vector modulation (ZVM) based on the sensed frequency and torque. A system includes means for sensing a threshold output frequency of the motor and means for sensing a threshold torque of the motor. The system also includes means for determining a ZVM for the inverter based on the sensed threshold frequency and threshold torque. One method includes sensing that a motor is operating below a threshold frequency and is producing torque above a threshold torque amount. The method also includes determining a ZVM for the inverter based on the sensed frequency and torque.

    摘要翻译： 提供了用于减少电压源逆变器损耗的装置，系统和方法。 一种装置包括可耦合到电动机并且被配置为感测电动机的工作频率和由电动机产生的转矩的量的传感器。 该装置还包括耦合到传感器的控制器，该控制器被配置成基于感测到的频率和转矩来确定零矢量调制（ZVM）。 系统包括用于感测电动机的阈值输出频率的装置和用于感测电动机的阈值转矩的装置。 该系统还包括用于基于感测的阈值频率和阈值扭矩来确定用于逆变器的ZVM的装置。 一种方法包括检测电动机工作在阈值频率以下并且产生高于阈值扭矩量的转矩。 该方法还包括基于感测的频率和转矩来确定逆变器的ZVM。

    Method and system for pulse position scheduling in electric drives
    37.
    发明授权
    Method and system for pulse position scheduling in electric drives 有权
    电力驱动器脉冲位置调度方法与系统

    公开(公告)号：US07723946B2

    公开(公告)日：2010-05-25

    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： H02P27/04

    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（Mi）的逆变器和耦合到逆变器的控制器。 控制器选择基于Mi的脉冲排序方法，并根据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。

    Method and system for torque control in permanent magnet machines
    38.
    发明授权
    Method and system for torque control in permanent magnet machines 有权
    永磁机械转矩控制方法与系统

    公开(公告)号：US07595600B2

    公开(公告)日：2009-09-29

    申请号：US11759266

    申请日：2007-06-07

    申请人： Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

    发明人： Nitinkumar R. Patel ,  Brian A Welchko ,  Bonho Bae ,  Steven E. Schulz

    IPC分类号： H02P7/00

    CPC分类号： H02P21/141 ,  H02P21/20

    摘要： Methods and systems are provided for controlling permanent magnet machines. The method includes determining a maximum torque of the PM machine based on an error between a commanded d-axis flux and an estimated d-axis flux of the PM machine, and adjusting a torque command based on the maximum torque. The error associated with a variation between a current temperature and a nominal temperature of the PM machine.

    摘要翻译： 提供用于控制永磁机的方法和系统。 该方法包括基于指令的d轴磁通与PM机的估计d轴磁通之间的误差来确定PM机的最大转矩，以及基于最大转矩来调整转矩指令。 与PM机的当前温度和标称温度之间的变化相关的误差。