System and method for improving acceleration performance of an electric vehicle

    公开(公告)号:US09722518B2

    公开(公告)日:2017-08-01

    申请号:US14979237

    申请日:2015-12-22

    Abstract: Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inverter may include at least one power electronic device. The system may also include a torque capability controller. The torque capability controller may be configured to receive information indicative of a selection between a first mode and a second mode. The second mode may correspond to a higher torque to be output by the electric motor than the first mode. The torque capability controller may also be configured to apply a switching frequency to the at least one power electronic device. The switching frequency may have a lower value when the received information indicates the selection of the second mode than when the received information indicates the selection of the first mode.

    METHODS AND APPARATUS FOR GENERATING CURRENT COMMANDS FOR AN INTERIOR PERMANENT MAGNET (IPM) MOTOR

    公开(公告)号:US20170085199A1

    公开(公告)日:2017-03-23

    申请号:US14859174

    申请日:2015-09-18

    CPC classification number: H02P21/12 H02P21/22 H02P27/06

    Abstract: In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor. The apparatus may also include a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value, where the first torque command and the first motor speed and the first DC voltage value are associated with a first current output and a processor. The processor receives a torque input, a DC voltage input, and a motor speed input and identifies the current output associated with the torque input, the DC voltage input, and the motor speed input based on another motor speed different than the motor speed input and another DC voltage different than the DC voltage input and the motor speed input, and output the determined current output to cause the inverter to provide the input power to the motor.

    Inverter AC Bus Bar Assembly
    23.
    发明申请
    Inverter AC Bus Bar Assembly 审中-公开
    变频器交流母线组件

    公开(公告)号:US20170063066A1

    公开(公告)日:2017-03-02

    申请号:US14841532

    申请日:2015-08-31

    Abstract: Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.

    Abstract translation: 本文提供的功率逆变器组件用于机动车辆。 逆变器组件可以具有被配置为将DC输入功率转换为AC输出功率的对称结构。 逆变器组件可以包括包围对称DC输入部分的壳体,对称AC输出部分,DC链路电容器和具有一对功率模块的栅极驱动部分。 对称DC输入部分可以包括直流链路电容器耦合到的DC输入母线子组件,以及可以将DC链路电容器与功率模块电耦合的第二DC母线子组件。 对称的AC输出部分可以包括三相输出AC母线子组件,功率模块可以电耦合到该组件。 可以提供冷却子组件,用于使用冷却剂流体转移来冷却功率模块。

    Methods and systems for interconnecting parallel IGBT modules

    公开(公告)号:US09762146B2

    公开(公告)日:2017-09-12

    申请号:US14929173

    申请日:2015-10-30

    CPC classification number: H02M7/537 H02M7/493 H03K17/0828 H03K2017/0806

    Abstract: A system for interconnecting parallel insulated gate bipolar transistor (IGBT) modules is provided. A pair of switches selected from a plurality of the IGBT modules are assigned to a driver integrated circuit (IC). In the pair of switches, a master IGBT switch is selected, the other switch being a slave IGBT switch. A command signal from the driver IC is electrically coupled to both the master and slave IGBT switches. The master and slave IGBT switches both have protective circuits; however, the driver IC is electrically coupled to the protective circuits of the selected master IGBT switch only. The protective circuits include temperature and current sense circuits. The plurality of the IGBT modules may be formed by two hexpack power modules. The modules are configured such that only a single driver IC is needed for each pair of parallel IGBT switches, with equal current sharing of the paralleled modules.

    Methods and Systems for Interconnecting Parallel IGBT Modules

    公开(公告)号:US20170126145A1

    公开(公告)日:2017-05-04

    申请号:US14929173

    申请日:2015-10-30

    CPC classification number: H02M7/537 H02M7/493 H03K17/0828 H03K2017/0806

    Abstract: A system for interconnecting parallel insulated gate bipolar transistor (IGBT) modules is provided. A pair of switches selected from a plurality of the IGBT modules are assigned to a driver integrated circuit (IC). In the pair of switches, a master IGBT switch is selected, the other switch being a slave IGBT switch. A command signal from the driver IC is electrically coupled to both the master and slave IGBT switches. The master and slave IGBT switches both have protective circuits; however, the driver IC is electrically coupled to the protective circuits of the selected master IGBT switch only. The protective circuits include temperature and current sense circuits. The plurality of the IGBT modules may be formed by two hexpack power modules. The modules are configured such that only a single driver IC is needed for each pair of parallel IGBT switches, with equal current sharing of the paralleled modules.

    Inverter DC Bus Bar Assembly
    26.
    发明申请
    Inverter DC Bus Bar Assembly 审中-公开
    逆变器直流母线组件

    公开(公告)号:US20170063065A1

    公开(公告)日:2017-03-02

    申请号:US14841526

    申请日:2015-08-31

    CPC classification number: H02M7/003

    Abstract: Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.

    Abstract translation: 本文提供的功率逆变器组件用于机动车辆。 逆变器组件可以具有被配置为将DC输入功率转换为AC输出功率的对称结构。 逆变器组件可以包括包围对称DC输入部分的壳体,对称AC输出部分,DC链路电容器和具有一对功率模块的栅极驱动部分。 对称DC输入部分可以包括直流链路电容器耦合到的DC输入母线子组件,以及可以将DC链路电容器与功率模块电耦合的第二DC母线子组件。 对称的AC输出部分可以包括三相输出AC母线子组件,功率模块可以电耦合到该组件。 可以提供冷却子组件,用于使用冷却剂流体转移来冷却功率模块。

    System and method for improving acceleration performance of an electric vehicle
    27.
    发明授权
    System and method for improving acceleration performance of an electric vehicle 有权
    用于改善电动车辆的加速性能的系统和方法

    公开(公告)号:US09481254B1

    公开(公告)日:2016-11-01

    申请号:US15098087

    申请日:2016-04-13

    Abstract: Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inverter may include at least one power electronic device. The system may also include a torque capability controller. The torque capability controller may be configured to receive information indicative of a selection between a first mode and a second mode. The second mode may correspond to a higher torque to be output by the electric motor than the first mode. The torque capability controller may also be configured to apply a switching frequency to the at least one power electronic device. The switching frequency may have a lower value when the received information indicates the selection of the second mode than when the received information indicates the selection of the first mode.

    Abstract translation: 公开了用于提高包括用于推进的电动机的电动车辆的加速性能的系统和方法。 示例性系统可以包括被配置为驱动电动机的逆变器。 逆变器可以包括至少一个电力电子设备。 该系统还可以包括扭矩能力控制器。 转矩能力控制器可以被配置为接收指示在第一模式和第二模式之间的选择的信息。 第二模式可以对应于由电动机输出的比第一模式更高的扭矩。 转矩能力控制器还可以被配置为将开关频率施加到至少一个电力电子设备。 当所接收的信息指示第二模式的选择时,与接收到的信息指示第一模式的选择相比,开关频率可以具有较低的值。

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