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    • 9. 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。