Proposal to amend UN R160 definitions and event recording requirements:

• Amend definitions 2.8., 2.10., and 2.11. regarding Automatically Commanded Steering Function categories A, B1, and C,
• Amend definition 2.18. on “End of event time”,
• Amend definition 2.20. on “Engine throttle, percent full”,
• Delete definition 2.25.,
• Amend definition 2.35. on “Non-volatile memory”,
• Amend definition 2.45. on “Service brake status”,
• Amend definition 2.51. on “Time interval between current event and previous event”,
• Amend definition 2.65. on “VRU secondary safety system”,
• Insert new definitions 2.71. through 2.83.,
• Renumber para. 2.2. as 2.25.,
• Amend para. 5.3.1. to establish trigger conditions for planar, VRU, and rollover events separately from AEBS events with provision for events occurring within 300 ms overlap,
• Amend para. 5.3.1.1. through 5.3.1.5. to specify deployment triggers,
• Add new para. 5.3.1.2. for AEBS emergency braking demand trigger,
• Amend para. 5.3.2. and insert new para. 5.3.2.4. on rollover protection system deployment locking,
• Amend para. 5.3.3. to establish time zero for planar, VRU, and rollover events separately from AEBS events,
• Amend para. 5.4.3. to clarify crash test requirements as UN Regulations 95 and either 94 or 137,
• Amend para. 6.1. on acceleration measurement verification,
• Insert transitional provisions in new paras. 12.12. through 12.16. establishing entry into force of 03 series amendments, non-obligation to accept earlier series approvals as from 1 September 2031, and obligation to continue accepting earlier series approvals until 1 September 2033,
• Amend Annex 4 Table 1 data elements for recording intervals, sample rates, ranges, and new elements including Pre-Event Synchronization Timer, Trigger activated, ACPE, ADDW, DDAW, blind spot monitoring, turn signal, DCAS, emergency stop signal, and TTC.

Document SG-EDR-47-02 and SG-EDR-47-03 were discussed. The group agreed to include definitions 2.8, 2.10, 2.11, and 2.20 with edits. Proposed definitions will be circulated by June 15 for review with comments due June 26. For data elements, disagreements on frequency rates between contracting parties and industry remain in square brackets. EDR for ADS will be addressed under GRVA and the ADS IWG. An October in-person meeting in Berlin is planned, pending WP.29 direction on integrating DSSAD into the ADS IWG.

Proposal to amend definitions, recording triggering conditions, time zero establishment, crash test requirements, post-crash acceleration measurement, and data recording parameters:

• Amend definitions of automatically commanded steering function categories A, B1, B2, C, D, and E to clarify they are not part of a DCAS,
• Amend definition of “End of event time” to specify conditions for planar and other events,
• Amend definitions of “Engine throttle, percent full,” “Service brake status,” “Time interval between current event and previous event,” “Volatile memory,” and “VRU secondary safety system,”,
• Delete definition of “If recorded,”,
• Amend definition of “Non-volatile memory” to remove redundant text,
• Renumber “Accident Emergency Call System” from paragraph 2.2. to paragraph 2.25.,
• Insert new definitions for rollover protection system, AEBS, trigger activated, pre-event synchronization timer, blind spot monitoring system, emergency stop signal, turn signal, ACPE, ADDW, DCAS, and DDAW,
• Amend paragraph 5.3.1. on conditions for triggering recording to distinguish planar/VRU/rollover events from AEBS events and clarify that vehicles not fitted with certain systems are not required to trigger recording according to those paragraphs,
• Restructure paragraph 5.3.3. on time zero establishment to separately address planar/VRU/rollover events and AEBS events,
• Amend paragraph 5.4.3. to clarify crash test requirements,
• Amend paragraph 6.1. to clarify measurement of post-crash acceleration,
• Insert transitional provisions in paragraphs 12.12. through 12.16. establishing that as from entry into force no Contracting Party shall refuse to grant type-approvals under the 03 series of amendments, as from 1 September 2031/2029 Contracting Parties shall not be obliged to accept approvals to preceding series first issued after that date, until 1 September 2033 Contracting Parties shall continue to accept approvals issued according to preceding series first issued before 1 September 2031/2029, Contracting Parties may grant approvals according to any preceding series, and Contracting Parties shall continue to grant extensions of existing approvals to any preceding series,
• Amend Annex 1 to correct typo,
• Amend Annex 4 Table 1 to separate engine throttle and accelerator pedal data elements, increase recording intervals for rollover data, adjust recording intervals for AEBS events to −2.5 to 2.5 seconds, increase sample rates to 10 Hz for multiple data elements, add data elements for pre-event synchronization timer, trigger activated, ACPE status, ADDW status and time since warning, blind spot monitoring system status, turn signal status, DCAS status and driver monitoring system data, DDAW status and time since warning, and emergency stop signal status, and add time to collision data element for AEBS events.

Proposal to amend definitions 2.22 and 2.49 to modify the descriptions of non-volatile and volatile memory, and amend para. 5.3.1.2. to permit the EDR to write captured data from threshold criterion (a) in volatile memory only, with data from volatile memory written to non-volatile memory if any other trigger of para. 5.3.1. occurs or the vehicle master control switch is deactivated. The modification reduces memory wear in vehicles characterized by frequent stops. A version with tracked changes is available.

Proposal for a recording interval of 600 seconds prior to collision for driver drowsiness and attention warnings (DDAW), 240 seconds for advanced driver distraction warnings (ADDW), 240 seconds prior to collision for driver monitoring warnings from the driver-control assistance system (DCAS), triggers planar, VRU, Rollover, AEBS, AEBS for pedestrian, AEBS for bicycle, and AEBS for motor vehicle, and event data recording time-to-collision (TTC) range of 0 s to 5.0 s and resolution 0.1 s for AEBS events.