47. The expert from AVERE introduced ECE/TRANS/WP.29/GRVA/2021/7, a revised amendment proposal to the Automatically Commanded Steering Function (ACSF) of Category B1 provisions in UN Regulation No. 79 (maximum lateral acceleration ay_max). The expert from the Netherlands opposed to the proposal, as it could generate mode confusion and overreliance on the market. The experts from France, the European Commission and UK supported the proposal. The expert from Germany suggested that the proposal is further discussed by a task force. GRVA agreed to keep the proposal on hold.

50. The expert from AVERE introduced ECE/TRANS/WP.29/GRVA/2021/10 proposing revised amendments to the ACSF of Category C provisions (time range during which the lane change manoeuvre is initiated) in UN Regulation No. 79. The experts from UK, European Commissions and Japan supported the proposal. The expert from Korea supported the proposal and indicated that a longer time than the one proposed would be preferable. The expert from the Netherlands opposed to the proposal for the same reasons as the one expressed in September 2020. The expert from Norway also opposed to the proposal. He wondered about the possible benefits of stretching the limits. The expert from France supported the proposal but pointed out inconsistencies in the drawing compared to the provisions in the text. The expert from OICA supported the proposal. The expert from AVERE provided answers to the statements and questions raised. The Chair asked if all doubts were cleared. The experts from the Netherlands, Sweden, Germany and Finland still had reservations to the proposal but agreed that it could be further discussed at a task force meeting.

39. The expert from OICA introduced ECE/TRANS/WP.29/GRVA/2020/22, amended by GRVA-07-20 with proposed amendments to the provisions on ACSF of Category C. He explained that GRVA-07-20 also incorporated GRVA-07-15, GRVA-07-16 and GRVA-07-19. He withdrew GRVA-07-18. The expert from AVERE supported the OICA proposal. GRVA-07-29 superseded by GRVA-07-32. GRVA had remained divided on such amendments since its fourth session.

44. The expert from AVERE introduced GRVA-07-15. GRVA requested the secretariat to distribute this document with an official symbol at its next session. He also introduced GRVA-07-16 amendment proposals to ACSF of Category C. The experts from the Netherlands and Denmark expressed reservations with the document. GRVA could not reach consensus.

43. The expert from AVERE introduced ECE/TRANS/WP.29/GRVA/2020/7 and ECE/TRANS/WP.29/GRVA/2020/8 (and their respective amendments in GRVA-05-08 and GRVA-05-24), proposing amendments to the ACSF provisions, resuming the discussion started in September 2019. He mentioned the support provided by the expert from the United Kingdom. The experts from Sweden and France provided comments. The experts from Denmark, Finland, the Netherlands and Norway expressed concerns. The expert from the Netherlands explained that the dynamics problems reported by the manufacturer, member of AVERE, were not due to the provisions in the Regulation but were due to design choices made by this manufacturer. The experts from the European Commission, Korea and United Kingdom and Northern Ireland supported the proposals; the expert from OICA, too. The expert from the Russian Federation proposed alternative proposals (GRVA-05-59) improving the text. The expert from the United Kingdom proposed GRVA-05-57 aimed at addressing the comments expressed by the expert from Sweden. GRVA reviewed all revised proposals produced by the expert from AVERE during the week but remained divided. GRVA agreed to review a revised proposal at the sixth session of GRVA, if time allows.

44. The Chair of GRVA noted the division of GRVA on this matter. He proposed that GRVA performs a general review of the Regulation at its September 2020 session.