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    • 3. 发明授权
    • Method for identifying EMI sources in an electrical system
    • 用于识别电气系统中的EMI源的方法
    • US08823389B2
    • 2014-09-02
    • US13597602
    • 2012-08-29
    • Masayoshi TakahashiHua Zeng
    • Masayoshi TakahashiHua Zeng
    • G01R29/26
    • G01R31/001G01R29/0814
    • A method for identifying EMI sources in a system having a plurality of electrical components connected together by cables wherein each set of two electrical components connected by a cable forms a potential EMI source. A plurality of antennas are positioned around the vehicle and the EMI from each antenna is measured over a plurality of frequencies and the frequencies having an EMI greater than a predetermined threshold and a measurement profile of the received EMI versus the antennas for each of the identified frequencies is created. EMI reception is then simulated for each potential EMI source and a simulation profile of the received EMI versus the antennas is plotted for each potential EMI source. The actual source of the EMI is then identified by comparing the measurement profile with the simulation profile for the potential EMI sources at each frequency to determine a match of the profiles.
    • 一种用于识别具有通过电缆连接在一起的多个电气部件的系统中的EMI源的方法,其中通过电缆连接的每组两个电气部件形成潜在的EMI源。 多个天线位于车辆周围,并且在多个频率上测量来自每个天线的EMI,并且具有大于预定阈值的EMI的频率以及所接收到的EMI与针对每个识别频率的天线的测量分布 被创建 然后为每个潜在EMI源模拟EMI接收,并为每个潜在EMI源绘制接收的EMI与天线的仿真曲线。 然后通过将测量轮廓与每个频率处的潜在EMI源的仿真曲线进行比较来确定EMI的实际来源,以确定轮廓的匹配。
    • 4. 发明授权
    • System for power transmission
    • 电力传输系统
    • US08963366B2
    • 2015-02-24
    • US13252306
    • 2011-10-04
    • Hua ZengMasayoshi Takahashi
    • Hua ZengMasayoshi Takahashi
    • H05K7/00B60L1/00H02G3/00B60L3/00B60L15/00
    • B60L3/003B60L1/00B60L3/0046B60L15/007B60L2200/26B60L2270/147H02G3/00H05K7/00Y02T10/645
    • A system for reducing electromagnetic noise generated by common mode currents in electrical connections of a power inverter and battery in an electric or hybrid electric vehicle. A pair of spaced apart electrical conductors extends along the vehicle chassis and electrically connects the power inverter to the battery. An electrically conductive metal plate is positioned in between the spaced apart electrical conductors. This metal plate is electrically connected to the chassis adjacent at least both of the power inverter and the battery/motor. Besides this, more connecting points are required to keep the distance between two points less than half wavelength of the maximum frequency of EMI requirements, and most preferably this metal plate is electrically connected to the chassis all the way with infinite connecting points. The metal plate is positioned so that the metal plate is closer to the electrical conductors than the space in between the electrical conductors and the vehicle chassis.
    • 一种用于在电动或混合动力电动车辆中降低电力逆变器和电池的电气连接中的共模电流产生的电磁噪声的系统。 一对间隔开的电导体沿着车辆底盘延伸并将电力逆变器电连接到电池。 导电金属板位于间隔开的电导体之间。 该金属板至少与功率逆变器和电池/电动机两者电连接到底盘。 此外,需要更多的连接点来保持两个点之间的距离小于EMI要求的最大频率的一半波长,最优选地,该金属板通过无限连接点电连接到机箱。 金属板被定位成使得金属板比电导体和车辆底盘之间的空间更接近电导体。
    • 5. 发明申请
    • METHOD FOR IDENTIFYING EMI SOURCES IN AN ELECTRICAL SYSTEM
    • 在电气系统中识别EMI源的方法
    • US20140062502A1
    • 2014-03-06
    • US13597602
    • 2012-08-29
    • Masayoshi TakahashiHua Zeng
    • Masayoshi TakahashiHua Zeng
    • G01R29/26
    • G01R31/001G01R29/0814
    • A method for identifying EMI sources in a system having a plurality of electrical components connected together by cables wherein each set of two electrical components connected by a cable forms a potential EMI source. A plurality of antennas are positioned around the vehicle and the EMI from each antenna is measured over a plurality of frequencies and the frequencies having an EMI greater than a predetermined threshold and a measurement profile of the received EMI versus the antennas for each of the identified frequencies is created. EMI reception is then simulated for each potential EMI source and a simulation profile of the received EMI versus the antennas is plotted for each potential EMI source. The actual source of the EMI is then identified by comparing the measurement profile with the simulation profile for the potential EMI sources at each frequency to determine a match of the profiles.
    • 一种用于识别具有通过电缆连接在一起的多个电气部件的系统中的EMI源的方法,其中通过电缆连接的每组两个电气部件形成潜在的EMI源。 多个天线位于车辆周围,并且在多个频率上测量来自每个天线的EMI,并且具有大于预定阈值的EMI的频率以及所接收到的EMI与针对每个识别频率的天线的测量分布 被创建 然后为每个潜在EMI源模拟EMI接收,并为每个潜在EMI源绘制接收的EMI与天线的仿真曲线。 然后通过将测量轮廓与每个频率处的潜在EMI源的仿真曲线进行比较来确定EMI的实际来源,以确定轮廓的匹配。
    • 6. 发明申请
    • SYSTEM FOR POWER TRANSMISSION
    • 电力传输系统
    • US20130082522A1
    • 2013-04-04
    • US13252306
    • 2011-10-04
    • Hua ZengMasayoshi Takahashi
    • Hua ZengMasayoshi Takahashi
    • B60L1/00H05K7/00
    • B60L3/003B60L1/00B60L3/0046B60L15/007B60L2200/26B60L2270/147H02G3/00H05K7/00Y02T10/645
    • A system for reducing electromagnetic noise generated by common mode currents in electrical connections of a power inverter and battery in an electric or hybrid electric vehicle. A pair of spaced apart electrical conductors extends along the vehicle chassis and electrically connects the power inverter to the battery. An electrically conductive metal plate is positioned in between the spaced apart electrical conductors. This metal plate is electrically connected to the chassis adjacent at least both of the power inverter and the battery/motor. Besides this, more connecting points are required to keep the distance between two points less than half wavelength of the maximum frequency of EMI requirements, and most preferably this metal plate is electrically connected to the chassis all the way with infinite connecting points. The metal plate is positioned so that the metal plate is closer to the electrical conductors than the space in between the electrical conductors and the vehicle chassis.
    • 一种用于在电动或混合动力电动车辆中降低电力逆变器和电池的电气连接中的共模电流产生的电磁噪声的系统。 一对间隔开的电导体沿着车辆底盘延伸并将电力逆变器电连接到电池。 导电金属板位于间隔开的电导体之间。 该金属板至少与功率逆变器和电池/电动机两者电连接到底盘。 此外,需要更多的连接点来保持两个点之间的距离小于EMI要求的最大频率的一半波长,最优选地,该金属板通过无限连接点电连接到机箱。 金属板被定位成使得金属板比电导体和车辆底盘之间的空间更接近电导体。