EDR政策及产业研究
EDR政策及产业研究
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EDR(Event Data Record)即汽车事件数据记录系统,也就是俗称的“黑匣子”。这套系统主要负责记录车辆发生事故时的行车数据,包括发生碰撞前、碰撞时、碰撞后三个阶段的汽车运行数据,例如速度、ABS 状态、方向盘转向角度、气囊状态、车辆制动状态等。![](https://public.fangzhenxiu.com/fixComment/commentContent/imgs/1686920372662_ijm85e.jpg?imageView2/0)
EDR 通过 CAN 对车辆运行数据进行连续监控,当车辆在一定时间内纵向或者横向速度变化量达到预先设定的阈值(发生事故),EDR 便将碰撞前至碰撞后共计几秒钟内的车速、发动机转速、制动开关状态、纵向加速度、方向盘转向角度、安全带使用情况等数据储存起来。
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