Methods, systems and apparatus for reducing power loss in an electric motor drive system
    2.
    发明授权
    Methods, systems and apparatus for reducing power loss in an electric motor drive system 有权
    用于减少电动机驱动系统中的功率损耗的方法,系统和装置

    公开(公告)号:US08754603B2

    公开(公告)日:2014-06-17

    申请号:US13183318

    申请日:2011-07-14

    IPC分类号: H02P7/00

    摘要: Methods, system and apparatus are provided for reducing power loss in an electric motor drive system that includes an electric machine and an inverter module. A controller determines whether a torque command (Tcmd) is less than a minimum torque threshold (Tmin) that is required to disable the inverter module, and if so, increments a counter and determines whether the torque command (Tcmd) remains less than the minimum torque threshold (Tmin). When the torque command (Tcmd) remains less than the minimum torque threshold (Tmin), the controller checks to determine whether a current count value (n) maintained at the counter is greater than a count threshold (nth), and if so, the controller can generate a disable signal to disable switching within the inverter module.

    摘要翻译: 提供了用于减少包括电机和逆变器模块的电动机驱动系统中的功率损耗的方法,系统和装置。 控制器确定转矩指令(Tcmd)是否小于禁用变频器模块所需的最小转矩阈值(Tmin),如果是,则增加一个计数器,并确定转矩指令(Tcmd)是否保持小于最小值 转矩阈值(Tmin)。 当扭矩指令(Tcmd)保持小于最小扭矩阈值(Tmin)时,控制器检查以确定计数器上保持的当前计数值(n)是否大于计数阈值(nth),如果是,则 控制器可以产生一个禁用信号,以禁用逆变器模块内的开关。

    Methods and systems for induction machine control
    4.
    发明授权
    Methods and systems for induction machine control 有权
    感应电机控制的方法和系统

    公开(公告)号:US08390228B2

    公开(公告)日:2013-03-05

    申请号:US12635313

    申请日:2009-12-10

    IPC分类号: H02P7/00

    CPC分类号: H02P21/06 H02P21/141

    摘要: A method for controlling an induction machine having a rotor includes the steps of obtaining a torque command, calculating an estimated squared value of resistance of the rotor using the torque command, determining an offset for the resistance of the rotor, and generating an updated measure of rotor resistance using the estimated squared value and the offset.

    摘要翻译: 一种用于控制具有转子的感应电机的方法包括以下步骤:获得转矩指令,使用转矩指令计算转子的电阻的估计平方值,确定转子电阻的偏移量,并产生更新的测量值 转子电阻使用估计的平方值和偏移量。

    METHODS AND SYSTEMS FOR INDUCTION MACHINE CONTROL
    5.
    发明申请
    METHODS AND SYSTEMS FOR INDUCTION MACHINE CONTROL 有权
    感应电机控制方法与系统

    公开(公告)号:US20110140646A1

    公开(公告)日:2011-06-16

    申请号:US12635313

    申请日:2009-12-10

    IPC分类号: H02P23/14

    CPC分类号: H02P21/06 H02P21/141

    摘要: A method for controlling an induction machine having a rotor includes the steps of obtaining a torque command, calculating an estimated squared value of resistance of the rotor using the torque command, determining an offset for the resistance of the rotor, and generating an updated measure of rotor resistance using the estimated squared value and the offset.

    摘要翻译: 一种用于控制具有转子的感应电机的方法包括以下步骤:获得转矩指令,使用转矩指令计算转子的电阻的估计平方值,确定转子电阻的偏移量,并产生更新的测量值 转子电阻使用估计的平方值和偏移量。

    METHOD AND APPARATUS FOR DIAGNOSING A MOTOR CONTROL CIRCUIT IN A HYBRID VEHICLE
    7.
    发明申请
    METHOD AND APPARATUS FOR DIAGNOSING A MOTOR CONTROL CIRCUIT IN A HYBRID VEHICLE 有权
    用于诊断混合动力汽车控制电路的方法和装置

    公开(公告)号:US20100213948A1

    公开(公告)日:2010-08-26

    申请号:US12392603

    申请日:2009-02-25

    IPC分类号: G01R31/00

    摘要: A hybrid electric vehicle (HEV) has an algorithm for executing a method for diagnosing a high-voltage (HV) fault condition aboard the HEV. The HEV includes a high-voltage (HV) battery, an auxiliary power module (APM), a power inverter module (PIM), and a three-phase motor/generator unit (MGU). A controller executes the method to thereby measure a DC output current from the HV battery, a DC inlet current into the APM, and a pair of AC phase currents in the MGU. The method further includes calculating a DC inlet current into the PIM using the AC phase currents, diagnosing the HV fault condition using the DC output currents and the DC inlet currents, and executing a control action in response to the diagnosed condition. The method can include shutting off the APM to determine whether the APM is the root cause of the HV fault condition.

    摘要翻译: 混合电动车辆(HEV)具有执行用于诊断HEV上的高压(HV)故障状况的方法的算法。 HEV包括高压(HV)电池,辅助电源模块(APM),电力逆变器模块(PIM)和三相电动机/发电机组件(MGU)。 控制器执行该方法,从而测量来自HV电池的直流输出电流,进入APM的直流入口电流和MGU中的一对AC相电流。 该方法还包括使用AC相电流计算进入PIM的直流入口电流,使用DC输出电流和DC入口电流诊断HV故障状况,以及响应于诊断条件执行控制动作。 该方法可以包括关闭APM以确定APM是否是HV故障状态的根本原因。

    Motor control system for achieving peak torque
    9.
    发明授权
    Motor control system for achieving peak torque 有权
    电机控制系统实现峰值扭矩

    公开(公告)号:US08134321B2

    公开(公告)日:2012-03-13

    申请号:US12419371

    申请日:2009-04-07

    IPC分类号: H02P7/00

    CPC分类号: H02P21/22

    摘要: In a motor controller, a modified interpolation technique uses an extrapolated torque command for the upper table to improve torque linearity under certain conditions. When the torque command input is greater than the max torque limit of a first look-up table, but less than the maximum torque limit of a second, adjacent look-up table, the desired current command is computed by interpolating between the maximum torque limit of the first table and a revised torque value for the second look-up table, wherein the revised torque value is determined by extrapolating from the maximum torque limit of the first look-up table through a torque value based on the torque command input.

    摘要翻译: 在电动机控制器中,改进的插补技术使用上表的外推转矩指令来在某些条件下提高扭矩线性度。 当转矩指令输入大于第一查找表的最大转矩限制但小于第二相邻查找表的最大转矩极限时,通过内插最大转矩极限来计算所需电流指令 以及第二查找表的修正扭矩值,其中,通过基于转矩指令输入的转矩值,通过从第一查找表的最大转矩极限推断来确定修正后的转矩值。