System and method for detecting alternator condition
    3.
    发明授权
    System and method for detecting alternator condition 失效
    交流发电机状况检测系统及方法

    公开(公告)号:US06862504B2

    公开(公告)日:2005-03-01

    申请号:US10238543

    申请日:2002-09-10

    CPC classification number: G01R31/007

    Abstract: A system and method for detecting alternator condition is provided. Information is taken from the vehicle powerline and the communication links, and processed by the vehicle ECU, such as the vehicle antilocking brake system ECU, to obtain data. The battery voltage ripple amplitude is then calculated and compared at different engine speeds. If the difference in the ripple amplitude at the different engine speeds is greater than a predetermined threshold value, a signal is sent indicating that the alternator has failed.

    Abstract translation: 提供了一种用于检测交流发电机状况的系统和方法。 信息从车辆电力线和通信链路获取,并由诸如车辆防抱死制动系统ECU的车辆ECU进行处理以获得数据。 然后计算电池电压纹波幅度,并在不同的发动机转速下进行比较。 如果不同发动机转速下的纹波幅度差大于预定阈值,则发送指示交流发电机故障的信号。

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