Text prepared by Germany to clarify electrical braking system and energy supply line requirements with regard to towed trailers, including proposals for voltage specifications and inclusion of electro-hydraulic transmission devices within such systems. The text also seeks to align terminology with comparable paragraphs in other UN Regulations.
11. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2015/19, as summarized in GRRF-80-27 and containing the proposal drafted by the experts from Germany and the Netherlands about provisions for electromechanical braking systems for towing vehicles and their trailers. The proposal received some comments on aspects related to the energy measurement from the battery and to the warning light concept.
47. At the GRRF request, the secretariat presented the idea of introducing a warning lamp into Regulations Nos. 79 and 13 to light up at any brake application and to indicate the proper functioning of the trailer electrical braking system on some trailers (GRE-73-09). GRE agreed that such lamps do not fall under the scope of Regulation No. 48 and, if required, such an exemption could be introduced explicitly into the definitions of Regulation No. 48.
12. The expert from Germany introduced GRRF-78-40 based on ECE/TRANS/WP.29/GRRF/2013/29 which detailed proposed amendments to UN Regulation No. 13 on provisions for electro-mechanical braking systems. GRRF acknowledged the status report. The experts from Germany and the Netherlands volunteered to prepare a revised proposal for consideration at the February 2015 session, addressing the remaining open issues.
10. The expert from Germany introduced GRRF-76-24 based on ECE/TRANS/WP.29/GRRF/2013/29 and proposing amendments to Regulation No. 13 introducing provisions for electro-mechanical braking systems. GRRF acknowledged the status report and expected a revised proposal at its September 2014 session, addressing the remaining open issues, which the experts from Germany and the Netherlands volunteered to prepare.
11. The expert from Germany presented ECE/TRANS/WP.29/GRRF/2013/29 introducing provisions for electrical or hydraulic transmissions for brake systems. The expert from OICA, with reference to GRRF-75-13, answered to this proposal. GRRF noted a number of comments and agreed to resume consideration of this item at its next session on the basis of a revised document that the expert from Germany volunteered to prepare.
| GRRF-76-24 | |
| GRRF-78-40 | |
| GRE-73-09 | |
| GRRF/2015/19 |