Proposal to introduce new provisions to enable regulating DCAS supporting system-initiated manoeuvres and/or allowing skipping “hands-on” requests, ensuring maintaining string stability and providing additional editorial corrections and clarifications.

New provisions concerning hands-on requests and withholding thereof (Annex 3), deletion of a subclause on free space in target lane of lane change, and editorial corrections.

Updated draft proposal.

Proposal from the ADAS task force for improvements to the text.

The 35th ADAS task force session (ADAS-35-01) will be held online on 30–31 October 2024 to further develop UN Regulation No. 171 (phase 3) as endorsed by GRVA at its 20th session (GRVA-20-21/Add.1). The agenda includes finalizing items for the 21st GRVA session: extending clarifications to the 00 series of amendments (ADAS-35-02), confirming transitional provision dates for the 01 series of amendments (GRVA-20-59/Rev.2), and resolving contradictory paragraphs 5.3.7.2.4.10. and 5.3.7.2.5.3.2. The task force will exchange views on lifting highway limitations for system-initiated manoeuvres, driver knowledge confirmation procedures, and optimizing periodic reporting information in Table 1 of Section 7. The chair will present a routine proposal to amend Appendix 2 of Annex 3 (ADAS-35-03).

Proposal for driver acknowledgement of correct use of DCAS.

Revised proposal concerning reinstatement of the system at initiation of the powertrain.

Proposal to modify the in-service performance reporting requirements.

Proposal to improve the wording of the “decelerating lead vehicle” test scenario for consistency with related provisions in the text.

Proposal to align the original proposal to amend UN R171 with UN R79 and UN R157 with regard to the use of the term “activation” in relation to the powertrain.

ADAS task force draft amendments to UN R171 pursuant to the 33rd task force session.

Proposal to explicitly note objectives behind provisions requiring manufacturers to perform in-service monitoring and reporting (ISMR) for their driver-control assistance systems approved under UN R171 and for UN R171 to be continually reviewed based on technological progress and data collected via ISMR.

Proposal to implement editorial improvements and corrections to the original text.

Proposal to clarify the conditions for automatic re-instatement of the system at the “initiation of each engine start / run cycle”.

Proposal to introduce new provisions to enable regulating DCAS supporting system-initiated manoeuvres and/or allowing skipping “Hands-on” requests, ensuring maintaining string stability and providing additional editorial corrections and clarifications.

Document also available with session mark-up.

Pursuant to discussions during the 31st ADAS task force session through morning of the 4th day.

Comments as updated during the 31st session.

Proposal as submitted to WP.29 with editorial changes marked in red.

Proposals for clarifications as discussed by the ADAS task force small drafting group, updated per the in-session discussions.

Proposal from the ADAS task force for editorial improvements and corrections to the new UN Regulation on the approval of Driver-Control Assistance Systems.

Proposal for amendments to update the draft new UN Regulation.

Proposal to retain provisions for functions meeting the definitions of ACSF-B2 and E that have not yet been developed under the proposed UN Regulation on Driver-Control Assistance Systems (DCAS).