Proposal to resolve problems with installation of stronger spring brake actuators in trailers to realize higher deceleration in the case of emergency braking caused by a cut of the supply line between towing vehicle and trailer.

Proposal from GRVA to clarify paragraph 5.2.22.2. with regard to the deceleration thresholds for generating the braking light signal in the case of regenerative braking and/or automatically commanded braking.

Proposal from GRVA to adapt the performance requirements in UN R131 to the current state of the art.

Test prepared by the experts of the Informal Working Group (IWG) on hydrogen and fuel cell vehicles (HFCV), UN Global Technical Regulation No. 13, Phase 2 (GTR13-PH2) and proposes enhancement of the global harmonisation of the technical requirements of compressed hydrogen storage systems and vehicles equipped with them.

Proposal from the informal group on AEBS for Heavy-Duty Vehicles to align text with corresponding paragraphs of UN R152 and to clarify interpretation of provisions on system robustness when applied to heavy-duty vehicles.

Proposal from the Informal Working Group on Advanced Emergency Braking Systems of Heavy Duty Vehicles to increase the
potential speed reduction during the AEBS warning phase.

Proposal from the informal working group on Advanced Emergency Braking Systems of Heavy Duty Vehicles for Supplements to the original text, 01, and 02 series of amendments. The document proposes improvements to provisions based on technological progress identified during work under UN R131. The proposal includes a footnote for alternative approvals under either UN R152 or UN R131 for vehicles derived from light vehicles, improved wording for collision-warning and speed-reduction text, correction of an omission, and a request for GRVA guidance on a reference concerning control strategies and deviations from specified conditions.

This document is also available with tracked changes in pdf format and docx format.

Proposed amendments consolidated by the Special Interest Group leadership.

Proposal to introduce provisions for the approval of electromechanical braking systems.

Proposal to align the requirements of UN R13 concerning the assessment of electronic control systems with the latest developments adopted by WP.29 for UN R79 and UN R157.