Method and system for order noise evaluation of battery electric vehicle power system

The invention discloses a method and system for order noise evaluation of a battery electric vehicle power system. Aiming at the order noise of the battery electric vehicle powertrain system, an ordernoise masking value, order noise standout and overall noise speech intelligibility are obtained through the detection of three sensor detecting points under three types of working conditions, and according to three different frequency intervals, associated weighted values of subjective scores are weighted and an arithmetic mean value of the weighted results of the three intervals is calculated. According to the method, objective evaluation parameters can be accurately correlated with the subjective scores, and a reasonable and effective technical method is provided for evaluating the order noise of the battery electric vehicle powertrain system. 一种纯电动汽车动力系统阶次噪声测评方法及系统，针对纯电动汽车动力总成系统阶次噪声，在三类工况下通过三个传感器测点检测得到阶次噪声掩蔽值、阶次噪声突出度和整体噪声语言清晰度，按三个不同频率区间加权其关联的主观分值的加权值，并求得三个区间加权结果的算术平均值。该方法能够将客观评价参数与主观评分准确关联，本发明为评价纯电动汽车动力总成系统阶次噪