Text based upon a proposal from CLEPA and OICA as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 74th session to harmonize UN R13-H with the Federal Motor Vehicle Safety Standard (FMVSS) 135 on electric vehicle requirements with regard to the regenerative braking system (RBS).
Proposal to clarify and update transitional provisions, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121.
UN R13-H: Proposal for Supplement 17 to the 00 series of amendments
Proposal to enable activation of the ESC optical symbol in cases of a corrective steering function intervention when the CSF intervention is activated under the control of an ESC system. The aim is to avoid separate requirements for brake-actuated and steering-actuated vehicle stability functions (VSF) that would lead to two optical warnings where only one is necessary. This would enable use of the ESC intervention tell-tale for CSF steering intervention.
This proposal (WP.29/2018/8), as amended by para. 89, was adopted by the World Forum. Thirty-six Contracting Parties out of the 49 applying UN R13-H were present for the vote by AC.1. Thirty-six voted in favor with zero against and zero abstaining.
Proposal to ensure the continuity of the American Society for Testing and Materials (ASTM) Method E1337 for the measurement of the Peak Braking Coefficient (PBC) in UN Regulation No. 140, by introducing a reference to the new ASTM Standard Reference Test Tyre F2493.