自动驾驶系统数据记录器

[中文适用范围]： 本SAE推荐实践提供了用于分析自动驾驶系统（ADS）在满足本文件规定的触发阈值标准的事件期间的性能的各种数据元素的通用数据输出格式和定义。本文件旨在管理数据元素的定义，提供最小数据元素集，并指定适用于机动车辆应用的通用ADS数据记录器记录格式。 自动驾驶系统（ADS）在启动时执行完整的动态驾驶任务（DDT）。在没有人类驾驶员的情况下，ADS本身可能是碰撞事件的唯一见证者。因此，为了标准化事故重建者可用的信息，定义ADS数据记录是必要的。为此，本文档中定义的数据元素补充了SAE J1698-1定义的事件数据记录器（EDR），以便于确定在ADS操作车辆中导致碰撞的背景和事件。 本文档中定义的数据元素是SAE J3016定义的3级、4级或5级ADS功能独有的，并提供了导致碰撞或类似碰撞事件的额外背景信息。来自摄像头、激光雷达等传感器的数据将在没有人类驾驶员的情况下提供信息。ADS数据记录器中包含的数据预计将与SAE J1698事件数据记录器（EDR）记录和传统的事故重建分析结合使用。EDR和ADS数据记录器将至少捕获导致触发事件的信息。没有事实支持记录超过事件前5秒的数据会改变任何碰撞分析的结果。因此，建议数据记录器的记录持续时间为事件前5秒，与EDR相同。由于在碰撞事件期间传感器和/或通信可能出现故障，建议在碰撞后为碰撞和翻滚传感器收集数据，最长250毫秒。 ADS技术仍在开发中，尚未商业部署。因此，本SAE推荐实践旨在作为标准化实践的指南，并可能根据经验和技术进步而变化。 ADS数据记录器记录指定的数据元素，目的是理解ADS操作车辆（由ADS捕获）的显著操作环境，以及随后由ADS采取的车辆运动控制动作，导致满足本文件规定的触发阈值标准的事件。为ADS数据记录器记录报告中的数据元素创建标准定义支持这一目的。 [外文原描述]： This SAE Recommended Practice provides common data output formats and definitions for a variety of data elements that may be useful for analyzing the performance of automated driving system (ADS) during an event that meets the trigger threshold criteria specified in this document. The document is intended to govern data element definitions, to provide a minimum data element set, and to specify a common ADS data logger record format as applicable for motor vehicle applications.Automated driving systems (ADSs) perform the complete dynamic driving task (DDT) while engaged. In the absence of a human “driver,” the ADS itself could be the only witness of a collision event. As such, a definition of the ADS data recording is necessary in order to standardize information available to the accident reconstructionist. For this purpose, the data elements defined herein supplement the SAE J1698-1 defined EDR in order to facilitate the determination of the background and events leading up to a collision in an ADS-operated vehicle.The data elements defined in this document are unique to Level 3, 4, or 5 ADS features, as defined by SAE J3016, and provide additional background of the events leading up to a crash or crash-like event. The data from sensors such as camera(s), LiDAR(s) etc. will provide information in the absence of a human driver. The data included in the ADS data logger is expected to be used in conjunction with the SAE J1698 event data recorder (EDR) record and traditional accident reconstruction analysis. The EDR and ADS data logger will capture information leading up to the triggered event, at a minimum. There are no facts to support that recording data for greater than 5 seconds pre-event would change the outcome of any crash analysis. Thus, the recommended recording duration for a data logger is 5 seconds pre-event, same as an EDR. Due to the potential for sensor and/or communication failure during a crash event, the recommendation is that data should be collected post-crash for impact and rollover sensors for up to 250 ms.ADS technology is still being developed and is not yet commercially deployed. Therefore, this SAE Recommended Practice is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.Cross Reference: