摘要
本文分析了我国EDR标准与国外法规之间关于加速度数据记录格式要求的区别,并通过理论分析给出了最低加速度分辨率要求。基于MPDB工况下碰撞试验获取的加速度数据,采用不同分辨率和采样频率进行数据提取,通过Matlab软件计算得到对应的delta-Ⅴ(速度变化量)曲线。根据现有标准法规中的delta-Ⅴ数据精度要求,对EDR所需记录的加速度数据分辨率和采样频率进行分析。
Differences of format requirement of acceleration data between EDR standards of China and other countries were summarized. The lowest resolution of acceleration data was calculated through theoretical analysis. Acceleration data obtained from MPDB impact experiment was extracted at different resolution and sample rate and delta-Ⅴ(change in velocity) curves were calculated with Matlab. According to the accuracy requirement of delta-Ⅴ in existing standards and regulations, resolution and sample rate requirement of acceleration for EDR were analyzed.
作者
常晏宁
孙枝鹏
张广秀
Chang Yanning;Sun Zhipeng;Zhang Guangxiu(China Automotive Technology and Research Center Co.,Ltd.,Tianjin 300300)
出处
《中国汽车》
2021年第3期31-35,共5页
China Auto
