Control of a traction power inverter module in a vehicle having an electric traction motor
    1.
    发明授权
    Control of a traction power inverter module in a vehicle having an electric traction motor 有权
    控制具有电力牵引电动机的车辆中的牵引电力逆变器模块

    公开(公告)号:US08536818B2

    公开(公告)日:2013-09-17

    申请号:US13086532

    申请日:2011-04-14

    IPC分类号: G05B11/28

    摘要: A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above.

    摘要翻译: 用于控制车辆中的牵引力逆变器模块(TPIM)的方法包括使用控制器确定电动机的命令输出转矩。 该方法还包括当指令的输出转矩小于校准转矩阈值时,使用不连续的脉宽调制(DPWM)信号来控制TPIM和电动机。 当指令输出转矩大于阈值时,使用连续脉宽调制(CPWM)信号。 该方法可以包括:仅当指令的输出转矩低于预定的滞后电平时,才通过控制器使用DPWM信号来确定所命令的输出转矩的改变的方向,并控制TPIM。 车辆包括产生用于推进车辆的电动机扭矩的牵引电动机,ESS,TPIM和如上所述配置的控制器。

    CONTROL OF A TRACTION POWER INVERTER MODULE IN A VEHICLE HAVING AN ELECTRIC TRACTION MOTOR
    2.
    发明申请
    CONTROL OF A TRACTION POWER INVERTER MODULE IN A VEHICLE HAVING AN ELECTRIC TRACTION MOTOR 有权
    具有电动牵引电机的车辆中的跟踪功率变换器模块的控制

    公开(公告)号:US20120112674A1

    公开(公告)日:2012-05-10

    申请号:US13086532

    申请日:2011-04-14

    IPC分类号: H02P6/08

    摘要: A method for controlling a traction power inverter module (TPIM) in a vehicle includes determining a commanded output torque of the motor using a controller. The method further includes controlling the TPIM and motor using a discontinuous pulse width modulated (DPWM) signal when the commanded output torque is less than a calibrated torque threshold. A continuous pulse width modulated (CPWM) signal is used when the commanded output torque is greater than the threshold. The method may include determining a direction of a change in the commanded output torque, and controlling the TPIM, via the controller, using the DPWM signal only when the commanded output torque drops below a predetermined hysteresis level. A vehicle includes a traction motor producing a motor torque for propelling the vehicle, an ESS, a TPIM, and a controller configured as noted above.

    摘要翻译: 用于控制车辆中的牵引力逆变器模块(TPIM)的方法包括使用控制器确定电动机的命令输出转矩。 该方法还包括当指令的输出转矩小于校准转矩阈值时,使用不连续的脉宽调制(DPWM)信号来控制TPIM和电动机。 当指令输出转矩大于阈值时,使用连续脉宽调制(CPWM)信号。 该方法可以包括:仅当指令的输出转矩低于预定的滞后电平时,才通过控制器使用DPWM信号来确定所命令的输出转矩的变化方向,并控制TPIM。 车辆包括产生用于推进车辆的电动机扭矩的牵引电动机,ESS,TPIM和如上所述配置的控制器。

    Enhancing reception of signals in global positioning system (GPS) receiver module
    8.
    发明授权
    Enhancing reception of signals in global positioning system (GPS) receiver module 有权
    增强全球定位系统(GPS)接收模块中的信号接收

    公开(公告)号:US08044847B1

    公开(公告)日:2011-10-25

    申请号:US12780805

    申请日:2010-05-14

    IPC分类号: G01S19/48

    摘要: An antenna assembly for receiving the GPS signals in a global positioning system (GPS) receiver module automatically orients the antenna to better receive the GPS signals. The antenna is oriented by a positioner (e.g., a counterweight) that automatically rotates a frame on which the antenna is mounted. The GPS receiver module may also include multiple antennas oriented in different directions to maintain good reception of the GPS signals in any position. The multiple antennas are oriented in a manner so that the poor reception range an antenna is covered by other antennas. Signals from multiple antennas may be combined or chosen for processing by a GPS processor. Also, multiple GPS receiver modules may be deployed in close proximity so that wireless communication between the GPS receiver modules may be established.

    摘要翻译: 用于在全球定位系统(GPS)接收机模块中接收GPS信号的天线组件自动地定向天线以更好地接收GPS信号。 天线由自动旋转安装有天线的帧的定位器(例如配重)定向。 GPS接收机模块还可以包括以不同方向定向的多个天线,以保持GPS信号在任何位置的良好接收。 多个天线以使得天线被其他天线覆盖的不良接收范围的方式定向。 来自多个天线的信号可以被组合或选择用于由GPS处理器进行处理。 此外,多个GPS接收机模块可以紧密部署,以便可以建立GPS接收机模块之间的无线通信。

    Snap ring design with anti-rotation structures at outer diameter
    10.
    发明授权
    Snap ring design with anti-rotation structures at outer diameter 失效
    卡扣环设计,外径为防旋转结构

    公开(公告)号:US07364395B2

    公开(公告)日:2008-04-29

    申请号:US11292145

    申请日:2005-11-21

    IPC分类号: F16B21/18

    CPC分类号: F16B21/18 Y10S403/07

    摘要: This invention relates to a method of eliminating rotation of a snap ring, and more specifically, to an anti-rotation feature on the outer diameter of a gapped snap ring. The invention prevents rotation of the snap ring within the housing in which it is assembled. This is done to prevent the gap, which causes a mechanical imbalance, from changing position within the housing. This enables fixed position balancing mechanisms to be effective in balancing the assembly. A locking feature is provided that is adapted to lock the snap ring in a snap ring groove, preventing the snap ring gap from rotating within the snap ring groove. The locking feature comprises at least one locking feature crest positioned on the outer diameter of the snap ring.

    摘要翻译: 本发明涉及一种消除卡环的旋转的方法,更具体地说,涉及一种有缺口的卡环的外径上的防旋转特征。 本发明防止卡环在其组装的壳体内旋转。 这样做可以防止间隙改变,从而导致机械不平衡。 这使得固定位置平衡机构能够有效地平衡组件。 提供了锁定特征,其适于将卡环锁定在卡环槽中,防止卡环间隙在卡环槽内旋转。 锁定特征包括至少一个定位在卡环的外径上的锁定特征峰。