ECE R51多工况噪声评价方法试验研究

Experimental Research on ASEP Evaluation Method of ECE R51 Test

为方便国内汽车企业及时跟进ECE R51/03系列法规的修订进展,重点分析了多工况噪声(ASEP)测量及评价方法,对国内2款典型车型按照ECE R51/03系列法规要求开展ASEP试验,并结合ASEP评价方法对其测量数据进行分析,探究现行ASEP评价方法对中国汽车产品的影响,同时介绍了ASEP评价方法最新研究进展。试验结果表明,2款车型基本满足ASEP限值要求,但不同评价方法的评价结果存在差异,联合国正在研究的ASEP期望值评价模型可能对中国汽车产品产生影响,建议国内相关汽车企业和研究机构及时开展相应研究。

In order to facilitate domestic automakers to follow up the progress of the 03 series of ECE R51 regulations in a timely manner,the measurement and evaluation methods of Additional Sound Emission Provision(ASEP)are analyzed.In this paper,ASEP test on the two typical Chinese vehicle models are conducted according to ECE R51/03 regulations,and the measurement data with ASEP evaluation method is analyzed,the influence of the existing ASEP evaluation method on the Chinese auto products is investigated,and the ASEP latest progress of research is introduced.The results show that the two vehicle models basically meet the ASEP limit requirements,but different evaluation methods have different evaluation results,and the ASEP expected value evaluation model under study by the United Nations may have an impact on Chinese automobile products,it is recommended that relevant domestic automakers and research institutes should carry out corresponding research in a timely manner.