UN R79: Proposal for a Supplement
Document GRVA/2018/2
16 July 2018

Proposal for amendments to the requirements for Automatically Commanded Steering Functions (ACSF) of Category C, introducing specific provisions for the use of a lane change function with a two-step Human Machine Interface (HMI).

Submitted by CLEPA and OICA
Status: Superseded
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Previous Documents, Discussions, and Outcomes
5. (d) | Automatically Commanded Steering Function

37. The expert from OICA introduced GRVA-02-24 (based on ECE/TRANS/WP.29/GRVA/2018/2), proposing to insert in the Regulation some provisions for ACSF of Category C with a two-step Human Machine Interface (HMI) approach. The expert from the Netherlands disagreed with the proposed seven seconds as the time during which the second deliberate action by the driver should take place while this time for the one-step HMI approach (latest time by which an automatic initiation should occur), already in force, is limited to five seconds. The expert from France supported the proposal and showed flexibility on the seven seconds value to reach consensus among CPs. The expert from Germany asked whether this proposal would allow one single vehicle to be equipped with both a one-step HMI and a two-step HMI and how the combination of both would work. GRVA invited OICA to consider the issues raised by the experts and requested the secretariat to distribute the proposal with an official symbol for review at its September 2019 session.

6. (d) | Automatically Commanded Steering Function

29. The expert from OICA presented ECE/TRANS/WP.29/GRVA/2018/2, as amended by GRVA-01-22 introducing provisions for ACSF systems of Category C with a so called 2-steps human machine interface for the lane change activation. The expert from France supported the proposal. The expert from the European Commission welcomed this proposal. The proposal received some comments from the experts from Germany, Korea, Netherlands, and Sweden namely on the deletion of some provisions, the proposed amendment to extend the time by which a lane change manoeuvre shall begin and the proposed Annex 9. GRVA invited interested experts to prepare a revised proposal addressing the comments received.

3.5.4. | Working Party on Brakes and Running Gear (GRRF) (Eighty-fifth session, 11 December 2017 and Eighty-sixth session, 12-16 February 2018)

57. The GRRF chair mentioned that document ECE/TRANS/WP29/2018/35 would still contain square brackets. WP.29 agreed to remove the square brackets and to agree on transitional provision dates (as reflected in para. 92).

4.7. | Consideration of draft amendments to existing UN Regulations submitted by GRRF

92. In ECE/TRANS/WP.29/2018/35, paragraphs 2.1.4., amend to read:

12.2.2.As from 1 September 2019, Contracting Parties applying this UN Regulation shall not be obliged to accept UN type approvals to the preceding series (02) of amendments, first issued after 1 September 2019.
12.2.3.Until 1 September 2021, Contracting Parties applying this UN Regulation shall continue to accept UN type approvals to the preceding series (02) of amendments to the UN Regulation, first issued before 1 September 2019.
12.2.4.As from 1 September 2021, Contracting Parties applying this UN Regulation shall not be obliged to accept type approval issued to the preceding series of amendments to this UN Regulation.

93. WP.29 noted the concern raised by the representative of OICA on the selection of an early date of application for the transitional provisions in paragraphs 12.2.3. and 12.2.4., which could create serious development difficulties, due to the introduction of new requirements compared to the very recently adopted 02 series of amendments, while vehicles are currently under development for the latter.

4.7.8. | Proposal for the 03 series of amendments to UN Regulation No. 79 (Steering equipment)
Related and Previous Documents
WP.29/2018/35
GRVA-01-22
GRVA-02-24
Relates to UN R79 |