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.

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.

This document addresses the ramifications of introducing the proposals outlined in GRRF-72-07 (superceded by GRRF-72-07/Rev.1) specifically associated with semi-trailers.

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.

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.).

Text from the European Association of Automotive Suppliers (CLEPA) and from the International Organization of Motor Vehicle Manufacturers (OICA) to align the braking performance requirements for M1 vehicles in Annex 3 of UN R79 with those of UN R13-H (light vehicle braking).

The UN R13 and 13-H include procedures to filter out the effects of electric regenerative braking systems from the braking assessment. This proposal would allow test services to disconnect to RBS prior to running tests. It also would allow the use of DC Ampere-hour meter to measure charge states.

This paper presents some of the main questions and positions of OICA regarding the Japanese proposal on lane-keeping and parking-assist systems. In general, OICA is not in favor of new regulations for LKAS and PAS.

OICA positions opposed to the Japanese proposal for new regulations to govern lane-keeping assist systems and parking assist system, arguing that such systems are already covered under UN Regulation 79.

Correction to ISO reference since Byte 3-4 of EBS 11 is only referenced in Part 2 of ISO 11992 and therefore the text should make explicit that reference along with amendment 1:2007. Also proposes to omit several redundant footnotes and references.

Proposal to transfer brake assist systems provisions out of UN Regulation 13-H and into a new stand-alone regulation. The proposal arises from a perceived need to simplify UN R13-H to facilitate its application within the proposed international whole vehicle type approval.

Proposal to transfer electronic stability control systems provisions out of UN Regulation 13-H and into a new stand-alone regulation. The proposal arises from a perceived need to simplify UN R13-H to facilitate its application within the proposed international whole vehicle type approval.

Proposal to delete references to electronic control systems and brake assist systems within UN R13-H in order to simplify use of the regulation within the proposed international whole vehicle type approval regulation. These provisions would be taken up by new separate UN Regulations.

Proposal to clarify approval requirements for vehicles and trailers equipped with anti-lock braking systems with regard to the braking compatibility of towing and towed vehicles, including between ABS and compressed-air braking systems. The proposal revises Annexes 10 and 13 of the regulation.

Proposal to improve the definition of “identical” parts as applied to replacement brake discs and drums and to introduce an “identical” part definition for brake linings.

Proposal to correct typographical errors in Corrigendum 2 to Revision 7 of UN R13 wherein the symbols s, s’ and s_o were erroneously transcribed.

Proposal to insert missing item in the table of contents.

Responses to document GRRF-75-19 detailing OICA’s remaining concerns over the proposal to refine the definition of “identical” discs and drums and to extend this to brake linings.

Proposal to specify that safety aspects of ESC systems can be assessed under this new regulation or under UN R13-H. The objective of the proposed wording is to avoid redundant certification of the complex electronic control systems (CEL) aspects of ESC according to both the proposed ESC regulation and UN Regulation No. 13-H (keeping unchanged the level of safety). The proposal would permit the applicant to show evidence that CEL compliance has already been achieved according to Annex 8 of UN Regulation No. 13-H as an alternative to demonstrating compliance with the CEL annex of the ESC regulation.

Proposal to specify that safety aspects of brake assist systems can be assessed under this new regulation or under UN R13-H. The objective of the proposed wording is to avoid redundant certification of the complex electronic control systems (CEL) aspects of ESC according to both the proposed BAS regulation and UN Regulation No. 13-H (keeping unchanged the level of safety). The proposal would permit the applicant to show evidence that CEL compliance has already been achieved according to Annex 8 of UN Regulation No. 13-H as an alternative to demonstrating compliance with the CEL annex of the BAS regulation.

Proposal to include a footnote in the scope of the regulation alerting type approval authorities to the possibility for exemptions to the lane departure warning systems requirements based upon reasonable technical feasibility, cost/benefit, and/or other evidence. The broad notion is that LDWS is intended to prevent accidents due to inattention while driving long distances, especially on highways. Therefore, vehicles designed for purposes not given to such monotonous long-distance travel should, under this proposal, logically be exempted on a case-by-case basis from LDWS requirements.

Proposal to include a footnote in the scope of the regulation alerting type approval authorities to the possibility for exemptions to the automatic emergency braking systems requirements based upon reasonable technical feasibility, cost/benefit, and/or other evidence. The broad notion is that AEBS is intended to prevent accidents due to inattention while driving long distances, especially on highways. Therefore, vehicles designed for purposes not given to such monotonous long-distance travel should, under this proposal, logically be exempted on a case-by-case basis from AEBS requirements.

Proposal to include a footnote in the scope of the regulation alerting type approval authorities to the possibility for exemptions to the automatic emergency braking systems requirements based upon reasonable technical feasibility, cost/benefit, and/or other evidence. The broad notion is that AEBS is intended to prevent accidents due to inattention while driving long distances, especially on highways. Therefore, vehicles designed for purposes not given to such monotonous long-distance travel should, under this proposal, logically be exempted on a case-by-case basis from AEBS requirements.

Proposed amendments to UN R13-H to confirm that the complex electronic control system (CEL) requirements may be satisfied through an approval conducted under another regulation (e.g., the pending new ESC and BAS regulations) and to delete the marking requirement concerning ESC systems which will no longer be within the scope of UN R13-H.

Proposal to remove all references to Annex 10 from Annex 13 by transferring the provisions concerning vehicles with and without anti-lock braking systems to Annex 10.

Proposal to amend the draft text for the proposed new regulation on BAS which would extract the BAS provisions from the current UN R13-H on light vehicle braking systems. The intention is to clarify the meaning of the text in places where it is ambiguous when taken out of the context of UN R13-H.

Proposal to amend the draft text for the proposed new regulation on ESC which would extract the ESC provisions from the current UN R13-H on light vehicle braking systems. The intention is to clarify the meaning of the text in places where it is ambiguous when taken out of the context of UN R13-H.

Proposal to delete the contents of Annex 9 on parking brake systems equipped with a mechanical brake-cylinder locking device due to obsolescence.

Proposal to clarify that like original brake discs and drums, original brake lining assemblies & drum brake linings are also not subject to this regulation and to refine the definition of “m_axle” as the “maximum technically” permitted mass of the axle in alignment with the definition in Annex 11-Appendix 1, Table 1 of UN R13.

Reformatted proposal to clarify that like original brake discs and drums, original brake lining assemblies & drum brake linings are also not subject to this regulation and to refine the definition of “m_axle” as the “maximum technically” permitted mass of the axle in alignment with the definition in Annex 11-Appendix 1, Table 1 of UN R13.

Proposal to clarify the draft text to align UN R79 with UN R13-H concerning cases where the braking and steering systems have the same energy source. This proposal would clarify and reaffirm that where there is “a failure in the energy supply, the steering system shall have priority”.

Presentation on currently available and emerging driver-assistance technologies and their relation to the levels of vehicle automation (e.g., from full driver control to fully autonomous vehicle).

Presentation discussing the framework for relating independent regulations on electronic subsystems of braking or steering systems to the primary braking/steering regulations.

Supporting explanation for the proposal to align UN R79 with UN R13-H concerning cases where the braking and steering systems have the same energy source. This proposal would clarify and reaffirm that where there is “a failure in the energy supply, the steering system shall have priority”.

CLEPA proposed a framework for relating independent regulations on electronic subsystems of braking or steering systems to the primary braking/steering regulations. This proposal revises the wording, focusing on ESC systems with relation to the requirements for complex electronic control systems under Regulation 13-H.

For testing purposes, UN R90 defines a “test group” as a grouping of parts having the same characteristics. The regulation then defines a “variant” as a part within a “test group”. However, the approval numbers under the rule stipulate the identification of each variant certified. As a result, the text technically requires certification of each individual part (variant) which was not the intention of the drafters. CLEPA raises this for information purposes with the intention to put forward a proposal at the next GRRF session.

Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification).

CLEPA remarks defining sensor mounting requirements for heavy vehicles (Horizontally: up to 600 mm out of vehicle center; Vertically: between 330 mm and 800 mm above road-surface level) in order to avoid safety risks.