GRSG-122-35
Guidance on Event Data Recorder (EDR): Proposal for amendments
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Proposal by IWG EDR/DSSAD to revise document ECE/TRANS/WP.29/GRSG/2021/32
27. The expert from the Netherlands on behalf of the IWG on Event Data Recorder (EDR) / Data Storage system for Automated Driving Vehicles (DSSAD) introduced the status report (GRSG-125-25) of the group. He informed GRSG that the IWG had completed the light duty vehicle EDR performance elements appropriate for adoption in the 1958 and 1998 Agreement Resolutions or UN Regulations, completed UN Regulation No. 160 accordingly and DSSAD requirements within UN Regulation No. 157 (Automated Lane Keeping System). He also announced ECE/TRANS/WP.29/GRSG/2023/11, ECE/TRANS/WP.29/GRSG/2023/12 and ECE/TRANS/WP.29/GRSG/2023/15 on the acceleration data accuracy verification procedures. Moreover, he explained that the IWG had developed proposals on EDR for Heavy Duty Vehicles (HDV), as a: (a) new UN Regulation (ECE/TRANS/WP.29/GRSG/2023/13 amended by GRSG-125-07) and (b) a guidance document on EDR for HDV appropriate for adoption in 1958 and 1998 Agreement Resolutions or Regulations (ECE/TRANS/WP.29/GRSG/2023/14 amended by GRSG-125-08). He explained that the proposals were based on an existing Society of Automotive Engineers standard, data, analyses, research and contains unique triggering of acceleration, safety-systems and last stop.
28. Finally, GRSG agreed to combine ECE/TRANS/WP.29/GRSG/2023/12, as amended below, and ECE/TRANS/WP.29/GRSG/2021/32 as amended by GRSG-122-35 and submit them as proposal for amending the Guidance on EDR Performance Elements to the November 2023 session of WP.29 for information only. Moreover, it was agreed to send ECE/TRANS/WP.29/GRSG/2023/14 and GRSG-125-08 to the IWG for reconsideration.
Annex 1, Table 1, amend to read:
| Longitudinal acceleration (post-crash) | If Recorded | 0-250 ms or 0 to End of Event Time plus 30 ms, whichever is shorter. | 500 | -50 to 50g | /- 10%10 | 1g | Planar |
| Footnote 11, the reference to paragraph 6.1.5., correct as 4.1.5. | |||||||
103. The Chair of GRSG recalled the work done by Event Data Recorder (EDR) / Data Storage Systems for Automated Driving (DSSAD), on the preparation of proposal for the performance of elements appropriate to be used in 1958 and 1998 Agreements.
104. The expert from Netherlands on behalf of IWG on EDR/DSSAD introduced document GRSG-122-35, Proposal to revise document ECE/TRANS/WP.29/GRSG/2021/32 which is a proposal for amending guidance on Event Data Recorder (EDR) Performance Elements Appropriate for Adoption in 1958 and 1998 Agreement Resolutions or Regulations (ECE/TRANS/WP.29/2020/100/Rev.1).
105. GRSG continued consideration on the proposal by IWG on EDR/DSSAD ECE/TRANS/WP.29/GRSG/2021/32 as amended by GRSG-122-35, while awaiting further information from IWG on EDR/DSSAD at the 123rd session of GRSG in March 2022.