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    • 11. 发明授权
    • Method and apparatus for active voltage control of electric motors
    • 电动机有源电压控制方法及装置
    • US07843156B2
    • 2010-11-30
    • US11769856
    • 2007-06-28
    • Brian A WelchkoKeith A Rodman
    • Brian A WelchkoKeith A Rodman
    • H02P1/04
    • H02P27/06
    • 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.
    • 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。
    • 14. 发明授权
    • Method and system for controlling a power inverter in electric drives
    • 用于控制电力变频器中的电力变换器的方法和系统
    • US07652443B2
    • 2010-01-26
    • US11923270
    • 2007-10-24
    • Steven E. SchulzStephen T. WestBrian A. WelchkoSilva Hiti
    • Steven E. SchulzStephen T. WestBrian A. WelchkoSilva Hiti
    • H02P7/00
    • B60L15/08B60L2240/421B60L2240/423B60L2240/526B60L2270/14Y02T10/645
    • 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.
    • 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。
    • 15. 发明申请
    • INVERTER MODULE WITH THERMALLY SEPARATED SEMICONDUCTOR DEVICES
    • 具有热分离半导体器件的逆变器模块
    • US20090285004A1
    • 2009-11-19
    • US12123300
    • 2008-05-19
    • Brian A. WELCHKO
    • Brian A. WELCHKO
    • H02M7/537H02M1/00
    • H02M7/003H05K7/1432
    • 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.
    • 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。