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    • 32. 发明授权
    • High power permanent magnet alternator with improved controlled output
    • 大功率永磁发电机具有改进的控制输出
    • US07521905B2
    • 2009-04-21
    • US11531403
    • 2006-09-13
    • Brian WelchkoGregory S. SmithJames M. Nagashima
    • Brian WelchkoGregory S. SmithJames M. Nagashima
    • H02H7/06H02P9/00H02P11/00
    • H02P9/006H02J7/1461H02P2101/45
    • Apparatus, systems, and methods are provided for reducing a potentially damaging high voltage fault condition in an alternator system. The apparatus comprises a motor, a rectifier coupled to the motor, an output node coupled to the rectifier, and a switch coupled between the rectifier and the output node, wherein the switch is a normally “on” switch. The system includes the apparatus implemented into a vehicle comprising an engine to drive the apparatus and a battery coupled to the apparatus, wherein the apparatus provides current to the battery. The method includes the steps of providing current from a rectifier of the alternator to a battery coupled to the rectifier and ceasing to provide current to the battery if a damaging event occurs, wherein the ceasing step comprises the step of switching OFF a normally “on” switch coupled between the rectifier and the battery if a damaging event occurs.
    • 提供装置,系统和方法用于减少交流发电机系统中潜在的有害的高压故障状况。 该装置包括电动机,耦合到电动机的整流器,耦合到整流器的输出节点和耦合在整流器和输出节点之间的开关,其中开关是正常的“开”开关。 该系统包括实施到车辆中的装置,其包括驱动装置的发动机和耦合到该装置的电池,其中该装置向电池提供电流。 该方法包括以下步骤:将交流发电机的整流器的电流提供给耦合到整流器的电池,并且如果发生损坏事件则停止向电池提供电流,其中停止步骤包括将正常“接通” 如果发生破坏性事件,则在整流器和电池之间连接开关。
    • 34. 发明授权
    • Cooling arrangements for integrated electric motor-inverters
    • 集成电动机 - 逆变器的冷却装置
    • US07210304B2
    • 2007-05-01
    • US11054483
    • 2005-02-09
    • James M. NagashimaKarl D. ConroyEric R. OstromGregory S. SmithGeorge JohnDavid TangTerence G. Ward
    • James M. NagashimaKarl D. ConroyEric R. OstromGregory S. SmithGeorge JohnDavid TangTerence G. Ward
    • F23D23/12
    • F28D15/00B60K6/26B60K2001/003F28D15/0266H02K9/19H02K11/33H05K7/20936
    • In order to provide a modular arrangement, an inverter for an electric traction motor used to drive an automotive vehicle is positioned in proximity with the traction motor. The inverter is located within a compartment adjacent to one end of the electric traction motor and is cooled in a closed system by spraying a liquid coolant directly onto the inverter. The liquid coolant absorbs heat from the inverter and is cooled by a heat exchange arrangement comprising a reservoir with pipes carrying a second coolant from the radiator of the automotive vehicle. In a preferred embodiment, the coolant is collected from the inverter in an annular reservoir that is integral with the compartment containing the inverter. In accordance with one embodiment of the cooling arrangement, heat from the inverter vaporizes the liquid coolant by absorbing heat from the inverter during a phase change from a liquid to a vapor. The vaporized coolant is condensed by a circulating second coolant in pipes connected to the vehicle's radiator through a condenser that is preferably coaxial with the motor and the annular reservoir, which annular reservoir in the second embodiment collects overspray liquid coolant. In order to avoid degrading the inverter, the coolant is a dielectric fluid.
    • 为了提供模块化布置,用于驱动机动车辆的电动牵引电动机的逆变器位于牵引电动机附近。 逆变器位于与电力牵引电动机的一端相邻的隔室内,并通过将液体冷却剂直接喷射到逆变器上而在封闭系统中冷却。 液体冷却剂从逆变器吸收热量,并且通过热交换装置来冷却,所述热交换装置包括具有从机动车辆的散热器承载第二冷却剂的管道的储存器。 在优选实施例中,冷却剂从与逆变器的隔室成一整体的环形容器中从逆变器收集。 根据冷却装置的一个实施例,来自逆变器的热量在从液体到蒸汽的相变期间通过吸收来自逆变器的热量来蒸发液体冷却剂。 蒸发的冷却剂通过连接到车辆散热器的管道中的循环第二冷却剂冷凝,该冷凝器优选地与电动机和环形储存器同轴,该第二实施例中的环形储存器收集过量喷射的液体冷却剂。 为了避免降低变频器,冷却剂是介质流体。
    • 38. 发明授权
    • Integrated power electronics cooling housing
    • 集成电力电子冷却外壳
    • US06404628B1
    • 2002-06-11
    • US09621379
    • 2000-07-21
    • James M. NagashimaTerence G. WardScott D. Downer
    • James M. NagashimaTerence G. WardScott D. Downer
    • H05K720
    • H05K7/20927
    • A power electronics cooling housing for use in a power electronics system. The power electronics cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body. The bus bar passthrough opening provides an opening from the coolant cavity and the capacitor bus assembly potting cavity. A coolant inlet manifold having a coolant cavity inlet and a coolant outlet manifold having a coolant cavity outlet are formed in the body that are coupled to respective ends of the coolant cavity. An environmental sealing gasket surrounds the coolant cavity.
    • 用于电力电子系统的电力电子冷却壳体。 电力电子冷却壳体具有形成在一个表面中的冷却剂腔的主体和形成在相对表面中的电容器总线组件灌封腔。 汇流条通道开口形成穿过身体。 汇流条通道开口提供从冷却剂腔和电容器总线组件灌封腔的开口。 具有冷却剂腔入口和具有冷却剂腔出口的冷却剂出口歧管的冷却剂入口歧管形成在主体中,其联接到冷却剂腔的相应端部。 环境密封垫圈围绕冷却剂腔。
    • 39. 发明授权
    • Methods, systems and apparatus for controlling operation of two alternating current (AC) machines
    • 用于控制两台交流(AC)机器的操作的方法,系统和装置
    • US08115430B2
    • 2012-02-14
    • US12473964
    • 2009-05-28
    • Gabriel Gallegos-LopezJames M. NagashimaMilun PerisicSilva Hiti
    • Gabriel Gallegos-LopezJames M. NagashimaMilun PerisicSilva Hiti
    • H02P21/00H02P27/00
    • H02P5/74B60L15/007B60L15/08B60L2200/26B60L2210/46H02P21/22Y02T10/643Y02T10/645Y02T10/7241
    • A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.
    • 提供一种用于控制两台交流电机的系统。 该系统包括提供DC输入电压的DC输入电压源,升压指令控制模块(VBCCM),耦合到两个AC电机的五相PWM逆变器模块,以及耦合到逆变器模块和 直流输入电压源。 升压转换器被设计为向逆变器模块提供具有大于或等于直流输入电压值的新的直流输入电压。 VBCCM基于来自两台交流电机的调制指数生成升压指令信号(BCS)。 BCS控制升压转换器,使升压转换器响应于BCS产生新的直流输入电压。 当两台交流电机需要超过满足两台交流电机所需的组合目标机械功率所需的直流输入电压的额外电压时,BCS控制升压转换器将升压转换器产生的新的直流输入电压驱动到一个值 大于直流输入电压。
    • 40. 发明授权
    • Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics
    • 用于车辆的双端逆变器系统,其具有表现出不同操作特性的两个能量源
    • US08102142B2
    • 2012-01-24
    • US12110950
    • 2008-04-28
    • Gregory S. SmithBrian A. WelchkoGeorge JohnSibaprasad ChakrabartiMilun PerisicJames M. Nagashima
    • Gregory S. SmithBrian A. WelchkoGeorge JohnSibaprasad ChakrabartiMilun PerisicJames M. Nagashima
    • H02P27/04
    • B60L11/1868B60L2210/40H02J1/102H02J2001/008H02M3/33584Y02T10/7005Y02T10/7066Y02T10/7241
    • A double ended inverter system for an AC electric traction motor of a vehicle is disclosed. The inverter system serves as an interface between two different energy sources having different operating characteristics. The inverter system includes a first energy source having first operating characteristics associated therewith, and a first inverter subsystem coupled to the first energy source and configured to drive the AC electric traction motor. The inverter system also includes a second energy source having second operating characteristics associated therewith, wherein the first operating characteristics and the second operating characteristics are different, and a second inverter subsystem coupled to the second energy source and configured to drive the AC electric traction motor. In addition, the inverter system has a controller coupled to the first inverter subsystem and to the second inverter subsystem. The controller is configured to influence operation of the first inverter subsystem and the second inverter subsystem to manage power transfer among the first energy source, the second energy source, and the AC electric traction motor.
    • 公开了一种用于车辆的交流电力牵引电动机的双端逆变器系统。 逆变器系统用作具有不同操作特性的两个不同能量源之间的接口。 逆变器系统包括具有与其相关联的第一操作特性的第一能量源和耦合到第一能量源并被配置为驱动AC电力牵引电动机的第一逆变器子系统。 逆变器系统还包括具有与其相关联的第二操作特性的第二能量源,其中第一操作特性和第二操作特性不同,以及耦合到第二能量源并被配置为驱动交流电力牵引电动机的第二逆变器子系统。 此外,逆变器系统具有耦合到第一逆变器子系统和第二逆变器子系统的控制器。 控制器被配置为影响第一逆变器子系统和第二逆变器子系统的操作,以管理第一能量源,第二能量源和交流电力牵引电动机之间的功率传递。