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    • 11. 发明授权
    • Method and apparatus for diagnosing a motor control circuit in a hybrid vehicle
    • 用于诊断混合动力车辆中的电机控制电路的方法和装置
    • US08054083B2
    • 2011-11-08
    • US12392603
    • 2009-02-25
    • Harry J. BauerWei D. WangBon Ho BaeWilliam R. Cawthorne
    • Harry J. BauerWei D. WangBon Ho BaeWilliam R. Cawthorne
    • G01R31/00
    • B60K6/485B60L3/0023Y02T10/6226
    • 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.
    • 混合电动汽车(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。
    • 13. 发明授权
    • Methods, systems and apparatus for detecting abnormal operation of an inverter sub-module
    • 用于检测逆变器子模块异常运行的方法,系统和装置
    • US07977963B2
    • 2011-07-12
    • US12506760
    • 2009-07-21
    • Bon Ho BaeLeah Dunbar
    • Bon Ho BaeLeah Dunbar
    • G01R31/40
    • G01R31/42
    • Methods and apparatus are provided for determining whether one or more inverter sub-modules of an inverter module is operating properly. Amplitude of each stator current signal is regularly measured. For each current signal, a positive counter counts a number of consecutive times the amplitude of that current signal is less than a positive current threshold, while a negative counter counts a number of consecutive times the amplitude of that current signal is greater than a negative current threshold. If the positive counter or the negative counter exceeds a maximum count, it is determined that an inverter sub-module is operating abnormally.
    • 提供了用于确定逆变器模块的一个或多个逆变器子模块是否正常工作的方法和装置。 每个定子电流信号的幅度被定期测量。 对于每个电流信号,正计数器对该电流信号的振幅小于正电流阈值的连续次数进行计数,而负计数器对该电流信号的幅度大于负电流的连续次数进行计数 阈。 如果正计数器或负计数器超过最大计数,则确定逆变器子模块异常运行。
    • 14. 发明授权
    • Rotor temperature estimation for an electric vehicle
    • 电动车辆的转子温度估计
    • US09166518B2
    • 2015-10-20
    • US13170082
    • 2011-06-27
    • Mengwei CampbellBon Ho Bae
    • Mengwei CampbellBon Ho Bae
    • H02P29/00H02P23/14
    • H02P29/0061B60L2240/425H02P23/14H02P29/66Y02T10/642
    • In accordance with exemplary embodiments, rotor temperature estimation is provided for estimating rotor temperatures of an electric motor in an electric vehicle. A method comprises estimating a rotor temperature in a controller for an electric motor of a vehicle using a fast-mode rotor temperature estimator for a time interval, and then deactivating the fast-mode rotor temperate estimator after the time interval and activating a normal-mode rotor temperature estimator in the controller for the electric motor of the vehicle. A system comprises an electric motor, a resistance rotor temperature estimator including a limit value limiting a temperature estimate increase for temperature estimates, and a controller for the electric motor, which uses the temperature estimate and is configured to temporarily increase the limit value of the resistance rotor temperature estimator providing a fast-mode rotor temperature estimate.
    • 根据示例性实施例,提供转子温度估计来估计电动车辆中的电动机的转子温度。 一种方法包括使用快速模式转子温度估计器对车辆的电动机的控制器中的转子温度进行一段时间间隔估计,然后在时间间隔之后停用快速模式转子温度估计器,并激活正常模式 用于车辆电动机的控制器中的转子温度估计器。 一种系统包括电动机,电阻转子温度估计器,其包括限制温度估计值的温度估计增加的限制值和用于电动机的控制器,该控制器使用该温度估计并且被配置为临时增加电阻的极限值 转子温度估计器提供快速模式转子温度估计。
    • 19. 发明授权
    • Induction motor control systems and methods
    • 感应电动机控制系统及方法
    • US08294413B2
    • 2012-10-23
    • US12652448
    • 2010-01-05
    • Min DaiBon Ho BaeLeah Dunbar
    • Min DaiBon Ho BaeLeah Dunbar
    • H02P23/00H02P27/00
    • H02P21/06H02P21/141H02P2207/01
    • A control system is provided for an inverter assembly associated with an induction motor. The system includes a current determination module configured to generate q- and d-axis current commands based on a torque command. The current determination module is further configured to generate the q-axis current command based on an observed flux linkage and a flux linkage command. The system further includes a motor current control module coupled to the current determination module and configured to generate q- and d-axis voltage commands based on the q- and d-axis current commands generated by the current determination module and a PWM modulator coupled to the motor current control module configured to generate duty cycle signals for operating the inverter assembly based on the q- and d-axis voltage commands generated by the motor current control module.
    • 为与感应电动机相关联的逆变器组件提供控制系统。 该系统包括电流确定模块,其配置为基于转矩指令产生q轴和d轴电流指令。 当前确定模块还被配置为基于观察到的磁链和磁链指令来生成q轴电流命令。 该系统还包括电动机电流控制模块,该电动机电流控制模块耦合到电流确定模块并被配置为基于由电流确定模块产生的q轴和d轴电流指令产生q轴和d轴电压指令,以及PWM调制器 电动机电流控制模块被配置为基于由电动机电流控制模块产生的q轴和d轴电压指令产生用于操作逆变器组件的占空比信号。
    • 20. 发明授权
    • System and method for detecting loss of isolation while an AC motor is operating
    • 交流电机工作时检测隔离损失的系统和方法
    • US08164298B2
    • 2012-04-24
    • US12412053
    • 2009-03-26
    • Mohammad N. AnwarBryan M. LudwigS.M. N. HasanSean E. GleasonBon Ho Bae
    • Mohammad N. AnwarBryan M. LudwigS.M. N. HasanSean E. GleasonBon Ho Bae
    • H02P3/18
    • G01R31/343G01R31/025H02P29/00
    • Methods and systems are provided for detecting loss of isolation of a motor, connections, or phase cables while an AC motor is operating. The system includes a power supply that is substantially isolated from the ground or chassis having a power supply voltage, and a power inverter electrically coupled to the power supply. The power inverter is configured to provide AC current from the power supply in an AC phase at an AC terminal, with the phase having current at a fundamental frequency that controls the motor speed. An electric motor is electrically coupled to the AC terminal of the power inverter and has a chassis that is substantially electrically isolated from the AC terminal of the power inverter under normal operating conditions. A processor is configured to control the AC current provided by the power inverter. The processor is configured to receive a first voltage signal related to current flowing through a motor chassis. The first voltage signal includes a first component related to the fundamental frequency of the phases, and a second component related to the power supply voltage. The processor is further configured to filter the first voltage signal to attenuate the second component, to measure an amplitude of the first component, and to determine if an AC loss of isolation condition exists by comparing the amplitude of the first component to a fault value.
    • 提供了用于在AC电动机运行时检测电动机,连接或相位电缆的隔离损失的方法和系统。 该系统包括与具有电源电压的地面或底盘基本上隔离的电源,以及电耦合到电源的功率逆变器。 电力逆变器被配置为在AC端子处的AC相中提供来自电源的AC电流,其中相位具有控制电动机速度的基频的电流。 电动机电耦合到电力逆变器的AC端子,并且具有在正常操作条件下与电力逆变器的AC端子基本上电隔离的底盘。 处理器被配置为控制由电力逆变器提供的AC电流。 处理器被配置为接收与流过马达机箱的电流相关的第一电压信号。 第一电压信号包括与相的基频相关的第一分量和与电源电压有关的第二分量。 处理器还被配置为对第一电压信号进行滤波以衰减第二分量,以测量第一分量的振幅,并且通过将第一分量的幅度与故障值进行比较来确定是否存在隔离条件的AC损失。