Proposal from the EDR/DSSAD informal group pursuant to the work of the GRSG task force on Automated Vehicles Regulation Screening to enable application of UN R169 to ADS vehicles.

“Placeholder” document introducing draft new requirements under the EDR Step 2 workstream. The document defines non-volatile memory for permanent EDR data storage and volatile memory for temporary data buffering. Requirements specify that EDRs capture and record data to non-volatile memory when triggers occur, with capacity for at least five events. Triggers include sudden deceleration exceeding 3.25 m/s² for 0.7 seconds, vehicle stops at 0 km/h for 20 seconds, and safety system activation. The amendment allows certain stop events to be written to volatile memory only, transferring to non-volatile memory when other triggers occur or the master control switch deactivates, reducing memory wear in vehicles with frequent stops.

Proposal from the EDR/DSSAD informal group pursuant to the work of the GRSG task force on Automated Vehicles Regulation Screening to enable application of UN R169 to ADS vehicles.

“Placeholder” document introducing draft new requirements under the EDR Step 2 workstream. The document defines non-volatile memory for permanent EDR data storage and volatile memory for temporary data buffering. Requirements specify that EDRs capture and record data to non-volatile memory when triggers occur, with capacity for at least five events. Triggers include sudden deceleration exceeding 3.25 m/s² for 0.7 seconds, vehicle stops at 0 km/h for 20 seconds, and safety system activation. The amendment allows certain stop events to be written to volatile memory only, transferring to non-volatile memory when other triggers occur or the master control switch deactivates, reducing memory wear in vehicles with frequent stops.