Scope of proposed standard: 

This standard defines requirements and metrics for data storage in a Data Storage System for Automated Driving (DSSAD) as well as related functions and common technical requirements. DSSAD is a device or function that records and stores a data set (“timestamped flags”) during the automated driving sequences of any vehicle equipped with Level 3, Level 4, or Level 5 Automated Driving Systems (ADS). The standard conforms to a compendium of data elements used in vehicles of categories M1 and N1 with regards to their Event Data Recorder (EDR) and DSSAD for partial and fully automated vehicles, including data elements relevant to ADS Levels 3, Level 4 and Level 5. This standard explains the means whereby an EDR and a DSSAD interact. This standard is without prejudice of national and regional laws related to privacy, data protection and personal data processing. This standard defines an On-Board Diagnostic (OBD) port lockout and Near Field Communication (NFC) protocol for protection against data manipulation of EDR and DSSAD data via the vehicle diagnostic link connector. This standard does not include specifications for data retrieval tools and methods as that is subject to national and regional level requirements.

Need for the Project: 

A standard is needed to describe the minimum collection, storage and crash survivability of motor vehicle crash EDR and DSSAD although it does not include specifications for data retrieval tools and methods as that is subject to national and regional level requirements. A standard is needed for the accurate, timely, and precise data collection between EDRs and DSSAD’s record, in a readily usable manner. The data are valuable for effective crash investigations and for analysis of safety equipment performance (e.g., advanced restraint systems). These data will help provide a better understanding of the circumstances in which crashes and injuries occur and will facilitate the development of safer vehicle designs. The need for this standard is to clarify that it is possible to retrieve the DSSAD data of the ADS together with the data of the EDR. The DSSAD data includes the last 30 seconds before the EDR trigger and does not include the actual date and time. This standard defines data definitions for data elements essential to assuring that both DSSAD and EDR data can both be retrieved from an autonomous vehicle. There is a need to differentiate between data relevant to the ADS operational preference and data relevant to ADS interactions with a human user. This standard satisfies the need for the minimum collection, storage and crash survivability of both motor vehicle EDR data and DSSAD data for ADS Level 3, Level 4 and Level 5. The continuing evolution of automotive technology, including driver assistance technologies and ADS, aims to deliver even greater safety benefits, however accurate and secure data is needed for essential vehicular safety.