Conversion of single phase to multiple phase alternating current
    3.
    发明授权
    Conversion of single phase to multiple phase alternating current 失效
    单相转换为多相交流电

    公开(公告)号:US06831849B2

    公开(公告)日:2004-12-14

    申请号:US09832677

    申请日:2001-04-11

    CPC classification number: H02M5/14

    Abstract: A system for controlling multiple vehicle includes a twelve volt (12V)/forty-two volt (42V) battery power distribution system that provides direct current. The system converts single phase alternating current to multiple phase alternating current to simultaneously power multiple vehicle systems. A single pulse width modulation generator converts the direct current from the 12V/42V battery power distribution system to alternating current. This provides one power supply path of alternating current, which has a first phase. A splitter device splits the one power supply path of alternating current into three power paths. A lead/lag circuit is used to shift the alternating current of the second path to a second phase different than the first phase of the first power supply path. A second lead/lag circuit for shifts the alternating current of the third path to a third phase different than the first phase or the second phase. This creates a three-phase alternating current power from a single direct current source. The three-phase alternating current is used to power a plurality of induction motors that operate multiple vehicle systems.

    Abstract translation: 用于控制多车辆的系统包括提供直流电的十二伏(12V)/四十二伏(42V)电池配电系统。 该系统将单相交流电转换为多相交流电以同时为多个车辆系统供电。 单个脉冲宽度调制发生器将来自12V / 42V电池配电系统的直流电转换为交流电。 这提供了具有第一相的交流电的一个电源路径。 分路器将交流电的一个电源路径分成三个电源路径。 引导/延迟电路用于将第二路径的交流电转换到与第一电源路径的第一相位不同的第二相位。 用于将第三路径的交流电转换成与第一相或第二相不同的第三相的第二引导/延迟电路。 这产生了来自单个直流电源的三相交流电源。 三相交流电用于对多个操作多个车辆系统的感应电动机供电。

    Control system for an electric motor

    公开(公告)号:US06538400B2

    公开(公告)日:2003-03-25

    申请号:US09850771

    申请日:2001-05-08

    CPC classification number: H02K11/35 H02K11/33

    Abstract: An apparatus for controlling multiple vehicle systems includes a single power supply that provides a direct current source. The power supply is comprised of a thirty-six volt (36 V) battery power distribution system. A converter is electrically connected to the power supply to convert direct current to alternating current. A plurality of induction motors are used to operate various vehicle systems. The motors receive alternating current via electrical connections between the converter and the motors. A central processor is connected to relays sending power to each of the motors and provides control signals to the motors based on input from control members used to activate each of the various vehicle systems. At least one sensor is associated with each of the motors to monitor voltage or current of the respective motor and to generate a diagnostic signal that is sent to the processor. The processor generates a warning signal when any of the diagnostic signals indicates that voltage within the respective motor is outside a predetermined range. A piezoelectric material is associated with each of the motors to provide an internal control signal for the motor. The piezoelectric material can be used to control acceleration or deceleration of the motor based on the rotational force of a rotor within the motor or can be use to activate an auxiliary winding in the motor based on mechanical input to the respective controller.

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