汽车事件数据记录系统控制策略研究  

Research on Control Strategy of Event Data Recording System

作　　者：刘全周[1] 李占旗[1] 陈慧鹏[1] 白稳峰[1] 张蕾[1] LIU Quan-zhou;LI Zhan-qi;CHEN Hui-peng;BAI Wen-feng;ZHANG Lei(China Automotive Technology&Research Center Co.,Ltd.,Tianjin 300300,China)

机构地区：[1]中国汽车技术研究中心有限公司

出　　处：《汽车电器》2019年第11期52-54,59,共4页Auto Electric Parts

摘　　要：对车辆事故成因调查、事故还原的数据需求进行分析,整理出现有汽车事件数据记录系统应增加的16条事件数据,覆盖新能源、高级驾驶辅助系统及控制器自身信息。介绍汽车事件数据记录系统的组成与工作原理,并对控制策略按照系统初始化模块、功能主程序模块、数据读取模块、故障诊断模块4部分进行详细阐述。为满足事件数据提取方式的通用性要求,设计了功能+物理寻址的数据提取方式,并采用VIN校验方式保证数据提取权限的安全性保证。The data requirement of vehicle accident investigation and accident recovery is analyzed. Sixteen event data that should be added to the event data recorder system are sorted out to cover the information of new energy,advanced driving assistant system and the controller. The composition and working principle of event data recorder system are introduced, and the control strategy is elaborated in detail based on four parts: system initialization module, main function program module, data reading module and fault diagnosis module. In order to meet the universal requirements of event data extraction method, a data extraction method of function and physical addressing is designed, and the security of data extraction authority is guaranteed by VIN verification.

关 键 词：EDR 触发与锁定 掉电存储 数据提取 事故还原 

分 类 号：U463.6[机械工程—车辆工程]