A multi-axle electric locomotive wheelset creep degree measuring and adjusting method comprises the following steps: when satellite positioning speed measurement is effective, setting and calculating wheel/vehicle speed ratio adjusting model parameters and locomotive radar speed adjusting model parameters according to satellite positioning speed measurement data; when satellite positioning speed measurement is invalid, new locomotive radar speed adjustment model parameters are calculated according to a given expression by the locomotive radar speed adjustment model parameters obtained through previous setting, and wheel/vehicle speed ratio adjustment model parameters are set and calculated by the adjusted radar speed adjustment model parameters; and then calculating according to a wheel/vehicle speed ratio adjustment model to obtain the speed of the locomotive, the creep degree change rate of each axle, the creep degree, the speed change rate of the locomotive wheelset and the inter-axle speed difference. According to the method, the advantages of high satellite positioning speed measurement precision, good radar speed measurement real-time performance and long-time normal work are combined, and the accuracy and the reliability of measuring the speed related quantity of each locomotive are improved.

    一种多轴电力机车轮对蠕滑度测量调整方法,在卫星定位测速有效时,由卫星定位测速数据整定推算轮/车速度比调整模型参数、机车雷达速度调整模型参数;在卫星定位测速无效时,由之前被整定得到的机车雷达速度调整模型参数依据给定表达式推算新的机车雷达速度调整模型参数,由调整后的雷达速度调整模型参数去整定推算轮/车速度比调整模型参数,然后依据轮/车速度比调整模型推算得到机车车速和各轴蠕滑度变化率、蠕滑度、机车轮对速度变化率、轴间速度差。该方法结合了卫星定位测速精度高,雷达测速实时性好且能够长时段正常工作的优点,提高了测量各机车速度相关量的准确性与可靠性。


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    Title :

    Multi-axle electric locomotive wheelset creep degree measuring and adjusting method


    Additional title:

    一种多轴电力机车轮对蠕滑度测量调整方法


    Contributors:
    CHEN GANG (author) / LING YUN (author) / NIE HUI (author) / TANG CAIZHEN (author)

    Publication date :

    2024-08-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61C Lokomotiven , LOCOMOTIVES / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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