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    Method and apparatus for active voltage control of electric motors
    11.
    发明授权
    Method and apparatus for active voltage control of electric motors 有权
    电动机有源电压控制方法及装置

    公开(公告)号：US07843156B2

    公开(公告)日：2010-11-30

    申请号：US11769856

    申请日：2007-06-28

    Applicant: Brian A Welchko ,  Keith A Rodman

    Inventor： Brian A Welchko ,  Keith A Rodman

    IPC: H02P1/04

    CPC classification number: H02P27/06

    Abstract: Methods and apparatus are provided for dynamic voltage control of electric motors. An inverter provides an output voltage to an electric motor based on a gate voltage. The method includes determining a speed of the electric motor and modifying the gate voltage based on the speed of the electric motor. The apparatus includes a gate drive circuit and a controller coupled to the gate drive circuit. The gate drive circuit provides a gate voltage to a switch network, and the switch network produces the output voltage in response to the gate voltage. The controller modifies the gate voltage based on a speed of the electric motor.

    Abstract translation: 提供了用于电动机的动态电压控制的方法和装置。 逆变器基于栅极电压向电动机提供输出电压。 该方法包括确定电动机的速度并基于电动机的速度来改变门电压。 该装置包括栅极驱动电路和耦合到栅极驱动电路的控制器。 栅极驱动电路向开关网络提供栅极电压，并且开关网络响应于栅极电压产生输出电压。 控制器基于电动机的速度修改栅极电压。

    Method and system for resolver alignment in electric motor system
    12.
    发明授权
    Method and system for resolver alignment in electric motor system 有权
    电动机系统中旋转变压器对准的方法和系统

    公开(公告)号：US07659688B2

    公开(公告)日：2010-02-09

    申请号：US11743709

    申请日：2007-05-03

    Applicant: Steven E. Schulz ,  Sean E Gleason ,  Brian A Welchko

    Inventor： Steven E. Schulz ,  Sean E Gleason ,  Brian A Welchko

    IPC: H02P23/00

    CPC classification number: H02P21/06 ,  H02P21/14 ,  H02P2203/05

    Abstract: Methods and systems are provided for aligning a resolver in an electric motor system. The method includes commanding a d-axis current command and a speed command, operating an electric motor without a load in response to the d-axis current command and the speed command, determining a rotor speed in response to the speed command, and determining an offset of the resolver based on the speed command and the rotor speed when the rotor speed has substantially stabilized.

    Abstract translation: 提供了用于对准电动机系统中的旋转变压器的方法和系统。 该方法包括命令d轴电流指令和速度指令，响应于d轴电流指令和速度指令，无负载地操作电动机，响应速度指令确定转子速度，并确定 当转子速度基本上稳定时，基于速度指令和转子速度的旋转变压器的偏移。

    Method and system for controlling a power inverter in electric drives
    14.
    发明授权
    Method and system for controlling a power inverter in electric drives 有权
    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：US07652443B2

    公开(公告)日：2010-01-26

    申请号：US11923270

    申请日：2007-10-24

    Applicant: Steven E. Schulz ,  Stephen T. West ,  Brian A. Welchko ,  Silva Hiti

    Inventor： Steven E. Schulz ,  Stephen T. West ,  Brian A. Welchko ,  Silva Hiti

    IPC: H02P7/00

    CPC classification number: B60L15/08 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/526 ,  B60L2270/14 ,  Y02T10/645

    Abstract: Methods and systems for controlling a power inverter in an electric drive system of an automobile 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.

    Abstract translation: 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。 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。

    INVERTER MODULE WITH THERMALLY SEPARATED SEMICONDUCTOR DEVICES
    15.
    发明申请
    INVERTER MODULE WITH THERMALLY SEPARATED SEMICONDUCTOR DEVICES 有权
    具有热分离半导体器件的逆变器模块

    公开(公告)号：US20090285004A1

    公开(公告)日：2009-11-19

    申请号：US12123300

    申请日：2008-05-19

    Applicant: Brian A. WELCHKO

    Inventor： Brian A. WELCHKO

    IPC: H02M7/537 ,  H02M1/00

    CPC classification number: H02M7/003 ,  H05K7/1432

    Abstract: Systems and apparatus are provided for an inverter module for use in a vehicle. The inverter module comprises a first electrical base and a second electrical base each having an electrically conductive mounting surface, wherein the electrical bases are physically distinct and electrically coupled. A first semiconductor switch has a surface terminal that is coupled to the electrically conductive mounting surface of the first electrical base. A second semiconductor switch has a surface terminal that is coupled to the electrically conductive mounting surface of the first electrical base. A first semiconductor diode and a second semiconductor diode each have a surface terminal, the surface terminals are coupled to the electrically conductive mounting surface of the second electrical base. The first semiconductor switch and first semiconductor diode are antiparallel, and the second semiconductor switch and second semiconductor diode are antiparallel.

    Abstract translation: 提供了用于车辆中的逆变器模块的系统和装置。 逆变器模块包括第一电气基座和每个具有导电安装表面的第二电气基座，其中电气基座在物理上是不同的并且电耦合。 第一半导体开关具有耦合到第一电气基座的导电安装表面的表面端子。 第二半导体开关具有耦合到第一电气基座的导电安装表面的表面端子。 第一半导体二极管和第二半导体二极管各自具有表面端子，表面端子耦合到第二电气基座的导电安装表面。 第一半导体开关和第一半导体二极管是反平行的，并且第二半导体开关和第二半导体二极管是反平行的。

    ELECTRIC MOTOR DRIVE SYSTEMS, MOTOR VEHICLES, AND METHODS OF PHASE CURRENT REGULATION
    16.
    发明申请
    ELECTRIC MOTOR DRIVE SYSTEMS, MOTOR VEHICLES, AND METHODS OF PHASE CURRENT REGULATION 有权
    电动机驱动系统，电机车辆及相电流调节方法

    公开(公告)号：US20090134835A1

    公开(公告)日：2009-05-28

    申请号：US11944793

    申请日：2007-11-26

    Applicant: BRIAN A. WELCHKO ,  STEVEN E. SCHULZ ,  SILVA HITI

    Inventor： BRIAN A. WELCHKO ,  STEVEN E. SCHULZ ,  SILVA HITI

    IPC: H02P6/08 ,  B60L9/18 ,  H02P27/06

    CPC classification number: B60L9/18 ,  B60L11/18 ,  H02P6/08 ,  H02P21/22 ,  H02P27/06 ,  H02P2205/01 ,  Y02T10/643 ,  Y02T10/7005

    Abstract: In various embodiments, an electric motor drive system (400, FIG. 4) and a motor vehicle (1000, FIG. 10) include an inverter (404, FIG. 4) adapted to generate (604, FIG. 6), based on inverter control inputs, a number, N, of phase current waveforms (118, FIG. 1), and a phase current sampling apparatus (408, FIG. 4) having a same number, N, of current sensors (502, 503, 504, FIG. 5). Each of the current sensors is adapted to receive one of the phase current waveforms, and the current sensors are adapted simultaneously to sample the phase current waveforms and to generate digital values representing amplitudes of the phase current waveforms. The system and motor vehicle also include a controller (410, FIG. 4) adapted to receive the digital values, to perform an evaluation of the digital values, and to generate the inverter control inputs (462, FIG. 4) based on the evaluation.

    Abstract translation: 在各种实施例中，电动机驱动系统（400，图4）和机动车辆（图10中的1000）包括适于产生（604，图6）的逆变器（图4），基于 逆变器控制输入，N个相电流波形（图118）和具有相同数量N的电流传感器（502,503,504）的相电流采样装置（408，图4） ，图5）。 每个电流传感器适于接收一个相电流波形，并且电流传感器同时适应于对相电流波形进行采样并产生表示相电流波形幅度的数字值。 系统和机动车辆还包括适于接收数字值的控制器（410，图4），以执行数字值的评估，并且基于评估产生逆变器控制输入（462，图4） 。

    PREDICTION STRATEGY FOR THERMAL MANAGEMENT AND PROTECTION OF POWER ELECTRONIC HARDWARE
    17.
    发明申请
    PREDICTION STRATEGY FOR THERMAL MANAGEMENT AND PROTECTION OF POWER ELECTRONIC HARDWARE 有权
    电力电子硬件热管理与保护预测策略

    公开(公告)号：US20090115491A1

    公开(公告)日：2009-05-07

    申请号：US12255728

    申请日：2008-10-22

    Applicant: Mohammad N. Anwar ,  Prakash Haribhai Desai ,  Sean E. Gleason ,  Brian A. Welchko

    Inventor： Mohammad N. Anwar ,  Prakash Haribhai Desai ,  Sean E. Gleason ,  Brian A. Welchko

    IPC: H03K17/78 ,  H05K7/20

    CPC classification number: B60L3/12 ,  B60W30/1843 ,  B60W30/1846

    Abstract: A hybrid powertrain system includes an engine, an electric machine, a power electronics device including a plurality of electric circuit layers, and a cooling system. A method for managing thermal energy in the power electronics device includes monitoring a plurality of temperature sensors in the power electronics device, monitoring electric power into and out of the power electronics device, predicting temperatures for the plurality of electric circuit layers, and controlling the hybrid powertrain system based upon the predicted temperatures for the plurality of electric circuit layers.

    Abstract translation: 混合动力系统包括发动机，电机，包括多个电路层的电力电子设备和冷却系统。 一种用于管理电力电子设备中的热能的方法包括：监测电力电子设备中的多个温度传感器，监测电力进入和流出电力电子设备，预测多个电路层的温度，以及控制混合 基于多个电路层的预测温度的动力系统。

    METHOD AND APPARATUS FOR ACTIVE VOLTAGE CONTROL OF ELECTRIC MOTORS
    18.
    发明申请
    METHOD AND APPARATUS FOR ACTIVE VOLTAGE CONTROL OF ELECTRIC MOTORS 有权
    电动机有功电压控制方法与装置

    公开(公告)号：US20090001915A1

    公开(公告)日：2009-01-01

    申请号：US11769856

    申请日：2007-06-28

    Applicant: Brian A. Welchko ,  Keith A. Rodman

    Inventor： Brian A. Welchko ,  Keith A. Rodman

    IPC: H02P27/06 ,  H02H7/122

    CPC classification number: H02P27/06

    Abstract: Methods and apparatus are provided for dynamic voltage control of electric motors. An inverter provides an output voltage to an electric motor based on a gate voltage. The method includes determining a speed of the electric motor and modifying the gate voltage based on the speed of the electric motor. The apparatus includes a gate drive circuit and a controller coupled to the gate drive circuit. The gate drive circuit provides a gate voltage to a switch network, and the switch network produces the output voltage in response to the gate voltage. The controller modifies the gate voltage based on a speed of the electric motor.

    Abstract translation: 提供了用于电动机的动态电压控制的方法和装置。 逆变器基于栅极电压向电动机提供输出电压。 该方法包括确定电动机的速度并基于电动机的速度来改变门电压。 该装置包括栅极驱动电路和耦合到栅极驱动电路的控制器。 栅极驱动电路向开关网络提供栅极电压，并且开关网络响应于栅极电压产生输出电压。 控制器基于电动机的速度修改栅极电压。

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