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    Method and system for operating a motor to reduce noise in an electric vehicle
    1.
    发明授权
    Method and system for operating a motor to reduce noise in an electric vehicle 有权
    用于操作电动机以减少电动车辆噪声的方法和系统

    公开(公告)号：US07576500B2

    公开(公告)日：2009-08-18

    申请号：US11756349

    申请日：2007-05-31

    申请人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

    发明人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

    IPC分类号： H02P1/00

    CPC分类号： H02P27/08 ,  B60L2270/142 ,  H02M1/14 ,  Y02T10/642

    摘要： Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.

    摘要翻译： 提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。 确定电气总线的选定谐振频率。 所选择的谐振频率包括低谐振频率和高谐振频率。 通过至少一个以开关频率工作的开关将电力提供给电动机。 开关频率根据电机的运行速度进行控制。 该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分，如果开关频率大于所选择的频率 ，所选择的开关频率大于低谐振频率，并且具有大于低谐振频率的y截距的基本线性部分。

    METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE
    2.
    发明申请
    METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE 有权
    用于操作电动机以减少电动车噪声的方法和系统

    公开(公告)号：US20080298785A1

    公开(公告)日：2008-12-04

    申请号：US11756349

    申请日：2007-05-31

    申请人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A. Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

    发明人： Nitinkumar R. Patel ,  Mohammad N. Anwar ,  Silva Hiti ,  Brian A. Welchko ,  Steven E. Schulz ,  Lisa M. Talarico

    IPC分类号： H02P7/285

    CPC分类号： H02P27/08 ,  B60L2270/142 ,  H02M1/14 ,  Y02T10/642

    摘要： Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.

    摘要翻译： 提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。 确定电气总线的选定谐振频率。 所选择的谐振频率包括低谐振频率和高谐振频率。 通过至少一个以开关频率工作的开关将电力提供给电动机。 开关频率根据电机的运行速度进行控制。 该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分，如果开关频率大于所选择的频率 ，所选择的开关频率大于低谐振频率，并且具有大于低谐振频率的y截距的基本线性部分。

    Method and system for initiating operation of an electric motor
    3.
    发明授权
    Method and system for initiating operation of an electric motor 有权
    电动机启动运行的方法和系统

    公开(公告)号：US08319460B2

    公开(公告)日：2012-11-27

    申请号：US12606839

    申请日：2009-10-27

    申请人： Yo Chan Son ,  Jihoon Jang ,  Brian A. Welchko ,  Nitinkumar R. Patel ,  Steven E. Schulz

    发明人： Yo Chan Son ,  Jihoon Jang ,  Brian A. Welchko ,  Nitinkumar R. Patel ,  Steven E. Schulz

    IPC分类号： H02P6/04

    CPC分类号： H02P6/20

    摘要： Methods and systems for controlling an electric motor are provided. The motor includes a plurality of windings. Each winding is coupled to a respective set of first and second switches. The first switch of each set of switches is simultaneously activated. Current flow through the plurality of windings is measured while the first switch of each set of switches is activated. The electric motor is controlled according to a first motor control method if the measured current is below a predetermined threshold. The electric motor is controlled according to a second motor control method if the measured current is above the predetermined threshold.

    摘要翻译： 提供了用于控制电动机的方法和系统。 马达包括多个绕组。 每个绕组耦合到相应的一组第一和第二开关。 每组开关的第一个开关同时被激活。 当每组开关的第一开关被激活时，测量通过多个绕组的电流。 如果测量电流低于预定阈值，则根据第一电动机控制方法来控制电动机。 如果测量的电流高于预定阈值，则根据第二电动机控制方法来控制电动机。

    Electric motor stator winding temperature estimation
    5.
    发明授权
    Electric motor stator winding temperature estimation 有权
    电动机定子绕组温度估算

    公开(公告)号：US07839108B2

    公开(公告)日：2010-11-23

    申请号：US12019395

    申请日：2008-01-24

    申请人： Nitinkumar R. Patel ,  Yo Chan Son ,  Silva Hiti ,  Steven E. Schulz

    发明人： Nitinkumar R. Patel ,  Yo Chan Son ,  Silva Hiti ,  Steven E. Schulz

    IPC分类号： H02H5/04

    CPC分类号： H02H7/0852

    摘要： A temperature estimation controller and methods are provided for controlling a torque command to prevent overheating of one or more of a plurality of phases of a permanent magnet motor. The temperature estimation controller includes a low speed temperature estimation module, a transition module and a temperature dependent torque command derater block. The low speed temperature estimation module determines a stator temperature of each of a plurality of phases of the permanent magnet motor in response to first thermal impedances measured for each of the plurality of phases with respect to a thermal neutral. The transition module is coupled to the low speed temperature estimation module and outputs the stator temperature of each of a plurality of phases of the permanent magnet motor as determined by the low speed temperature estimation module when a detected speed of the permanent magnet motor is less than a first predetermined speed. The temperature dependent torque command derater block is coupled to the transition module and derates the torque command in response to the stator temperature of one or more of the plurality of phases.

    摘要翻译： 提供了一种用于控制转矩指令以防止永磁电动机的多相中的一个或多个相的过热的温度估计控制器和方法。 温度估计控制器包括低速温度估计模块，过渡模块和与温度相关的转矩指令减排模块。 低速温度估计模块响应于相对于热中性点对多个相中的每一个测量的第一热阻而确定永磁电动机的多相的每个相的定子温度。 当所述永磁电动机的检测速度小于所述低速温度估计模块时，所述过渡模块耦合到所述低速温度估计模块，并且输出由所述低速温度估计模块确定的所述永磁电动机的多个相中的每一个的定子温度。 第一预定速度。 与温度相关的转矩指令转换器模块耦合到转换模块，并响应于多个相位中的一个或多个的定子温度降低转矩指令。

    Method and system for torque control in permanent magnet machines
    6.
    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。

    REDUCTION OF SUBHARMONIC OSCILLATION AT HIGH FREQUENCY OPERATION OF A POWER INVERTER
    8.
    发明申请
    REDUCTION OF SUBHARMONIC OSCILLATION AT HIGH FREQUENCY OPERATION OF A POWER INVERTER 有权
    降低功率变换器高频运行时的次谐波振荡

    公开(公告)号：US20080197800A1

    公开(公告)日：2008-08-21

    申请号：US11676527

    申请日：2007-02-20

    申请人： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

    发明人： Bonho Bae ,  Nitinkumar R. Patel ,  Steven E. Schulz ,  Silva Hiti

    IPC分类号： H02P27/04

    CPC分类号： B60L15/025 ,  B60L11/1803 ,  B60L15/20 ,  B60L2210/20 ,  B60L2220/14 ,  H02P21/04 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/725 ,  Y02T10/7275

    摘要： A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter output currents. The control architecture employs an adaptive filter module that filters the stationary frame currents to remove the fundamental motor frequency component (and its related harmonics), thus extracting any low frequency harmonic components. The stationary frame current regulator processes the low frequency components, while the synchronous frame current regulator processes the fundamental frequency component, resulting in suppression of low frequency oscillations in the inverter output.

    摘要翻译： 用于电力逆变器的控制架构包括同步电流调节器和静止电流调节器。 静态框架电流调节器接收表示对应于逆变器输出电流的静态框电流的滤波版本的输入电流。 控制架构采用自适应滤波器模块，对固定电流进行滤波，去除基波电机频率分量（及其相关谐波），从而提取任何低频谐波分量。 静态电流调节器处理低频分量，而同步电流调节器处理基频分量，从而抑制逆变器输出中的低频振荡。

    Anti-windup control for a current regulator of a pulse width modulation inverter
    9.
    发明授权
    Anti-windup control for a current regulator of a pulse width modulation inverter 有权
    脉冲宽度调制逆变器电流调节器的防饱和控制

    公开(公告)号：US07642737B2

    公开(公告)日：2010-01-05

    申请号：US11685729

    申请日：2007-03-13

    申请人： Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

    发明人： Bonho Bae ,  Steven E. Schulz ,  Silva Hiti ,  Nitinkumar R. Patel

    IPC分类号： H02P21/00

    CPC分类号： H02P21/22

    摘要： A control architecture for an electrical inverter includes a command limiter that is realized as a circular voltage limiter. The command limiter includes a Cartesian-to-polar converter coupled to a command source such as a synchronous frame current regulator. The Cartesian-to-polar converter provides magnitude and phase components for d-q command voltages. The command limiter further includes a magnitude limiter that limits the magnitude component to the maximum fundamental voltage component of the inverter, and a polar-to-Cartesian converter that converts the limited magnitude component and the phase component into modified d-q command voltages.

    摘要翻译： 用于逆变器的控制结构包括实现为圆形电压限制器的指令限制器。 命令限制器包括耦合到诸如同步帧电流调节器的命令源的笛卡尔到极化转换器。 笛卡尔到极化转换器为d-q指令电压提供幅度和相位分量。 命令限制器还包括限幅器，其将幅度分量限制到逆变器的最大基波电压分量;以及极限到笛卡尔转换器，其将受限幅度分量和相位分量转换为修改的d-q指令电压。

    Decoupling a harmonic signal from a signal path
    10.
    发明授权
    Decoupling a harmonic signal from a signal path 失效
    从信号路径去耦合一个谐波信号

    公开(公告)号：US07042186B2

    公开(公告)日：2006-05-09

    申请号：US10720626

    申请日：2003-11-24

    申请人： Constantin C. Stancu ,  Silva Hiti ,  Steven E. Schulz ,  Nitinkumar R. Patel

    发明人： Constantin C. Stancu ,  Silva Hiti ,  Steven E. Schulz ,  Nitinkumar R. Patel

    IPC分类号： G05B11/36

    CPC分类号： H02P6/185 ,  H02P6/183 ,  H02P21/18 ,  H02P2203/11 ,  H02P2207/01

    摘要： A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is multiplied by a value representing the harmonic to obtain an angular position multiple. A harmonic decoupling block uses the angular position multiple to obtain correction signals representing the harmonic signal, and subtracts the correction signals from the input current to decouple the harmonic signal from the input signal. This method is useful for decoupling unwanted harmonics from currents into which high-frequency signals have been injected for control of electric motors.

    摘要翻译： 一种用于将谐波信号与输入信号去耦的方法，其中谐波信号是相对于输入信号以外的信号的谐波。 将另一信号的角位置乘以表示谐波的值，以获得角位置倍数。 谐波去耦块使用角位置倍数来获得表示谐波信号的校正信号，并从输入电流中减去校正信号，以将谐波信号与输入信号去耦。 该方法对于将不想要的谐波与已注入高频信号的电流去耦以控制电动机是有用的。