Report from the 5th session of the informal working group on Automated Connections between Vehicles working on language to integrate such systems within UN R13 (heavy-duty braking) and UN R55 (mechanical couplings).

Japan plans to issue a regulation on 1 April 2012 along with fiscal incentives to promote the use of advanced emergency braking systems on heavy-duty vehicles. Mandatory installation will be phased in starting from 1 November 2014.

UN R90 unintentionally omits the bedding procedure for the brake drum high load test for M2, M3, N2 and N3 vehicles. CLEPA proposes using the same bedding procedure as already adopted for the thermal fatigue test for such vehicles and for the high load tests for trailers.

This proposal aims to improve brake distribution between truck and trailer of heavy vehicle combinations at everyday low decelerations, to enhance uniform use of all wheel brakes and thereby to counteract loss of full brake performance. The proposal is based on ISO 20918 and supercedes GRRF-72-07.

Draft agenda for the sixth session of the informal group on Automated Connections between Vehicles.

The use of test reports in Regulation No.13 was first introduced in Annex 11 of UN R13 in 1984. CLEPA proposes this amendment to support the proposal to permit the use of an Annex 19 test report as an alternative method in meeting the vehicle stability function requirements as detailed in Annex 21.

Denmark submitted document GRRF-71-19 (subsequently integrated into GRRF/2012/12) proposing to narrow the compatibility bands for control line pressure versus brake rate. This document challenges the proposed changes as effectively mandating electronic braking and imposing unwarranted costs.

Denmark submitted Document GRRF-71-18 (subsequently integrated into GRRF/2012/12) proposing to narrow the limits for coupling force control systems which are allowed to override the compatibility bands. This document argues against the proposed changes.

Denmark submitted GRRF-71-19 (subsequently in GRRF/2012/12) proposing a new paragraph to require a test point between the coupling head and the trailer relay emergency valve. This document argues that the requirement is already implicit within UN R13 and therefore, that the change is unnecessary.

This document addresses the ramifications of introducing the proposals outlined in GRRF-72-07 (superceded by GRRF-72-07/Rev.1) specifically associated with semi-trailers.

OICA proposes alternate language for amendments to the text of Annex 21 governing the use of simulation tools for evaluating electronic vehicle stability control systems (EVSC).

Presentation to accompany Danish, et. al. proposal on heavy-duty vehicle and trailer brake system compatibility.

The reference at the end of the last line of paragraph 5.3.2. in Annex 6 of UN R13-H: Revision 2 should refer to footnote 9 instead of footnote 8. This proposal by the Forum secretariat would correct the error.

Knott TrailerTechnik proposal to update the wording of Annex 14, para. 1.1 to cover “electromechanical or electrohydraulical” brake transmission devices. Primarily in German language.

Modified version of document GRRF/2011/35/Rev.1, pursuant to GRRF session 72 discussions, which aims to clarify reasonable levels of braking performance to be expected in different positions of the ignition key (i.e., off, on, lock, etc.).

Working draft of the proposed amendment to UN R13 intended to enable the type approval of fully automatic coupling systems that do not use ISO 7638 connectors.

Notes submitted by the chair of the Working Party on Brakes and Running Gear regarding the enforcement provisions of the supplements to UN R13-H, including mandatory electronic stability controls (ESC) and brake assist systems (BAS).

Russian submission reviewing the supplements to UN R13-H, their transtional provisions and lead times before entry into force.

The extension of UN R90 to include brake drums and discs introduced the concept of a part “identical” to the OE part. Because such parts would have been approved under UN R13/13-H, they were exempted from redundant approval under R90. This proposal would similarly define and exempt brake linings.

WP.29 secretariat proposal to correct several errors in references to footnotes in Annex 1 of the regulation.

Proposal from the Forum secretariat to correct errors found in Annex 1, item 21 and Annex 9, Appendix 4 of UN R13-H on light vehicle braking.

Submission of the Working Party on Brakes and Running Gear (GRRF) amending provisions concerning the brake drum “bedding in” procedures proposed in document WP.29/2012/4 (Proposal for Supplement 1 to the 02 series of amendments to
Regulation No. 90).

Proposal adopted by the Working Party on Brakes and Running Gear (GRRF) clarifying the levels of braking performance that are reasonable in the different positions of the ignition key, especially when the engine is off.

Comments on the working draft to insert provisions for automated connections between vehicles into UN R13 on heavy-duty vehicle braking systems.