World Forum
World Forum for the Harmonization of Vehicle Regulations
163rd session | Geneva | 24-27 Jun 2014 Download Copy
Agenda Item 4.9.1. | Proposal for Supplement 12 to the 11 series of amendments to Regulation No. 13 (Heavy vehicle braking)
Document(s)
WP.29-163-08 | Proposal for amendments to the draft Supplement 12 to the 11 series of amendments to UN Regulation No. 13
WP.29/2014/45 | Proposal for Supplement 12 to the 11 series of amendments to Regulation No. 13
Related pages: UN R13 Heavy-Duty Braking

WP.29-163 Discussion

European Commission unable to formally consider the editorial correction proposed by the WP.29 secretariat. Therefore, the EC does not have authority to approve the combined package of proposals. Therefore, the vote on adoption must be postponed.

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Previous Discussion(s)

Working Party on Brakes and Running Gear | Session 76 | 17-21 Feb 2014

1. The Working Party on Brakes and Running Gear (GRRF) held its seventy-sixth session from 17 to 21 February 2014 in Geneva. The meeting was chaired by Mr. B. Frost (United Kingdom). Experts from the following countries participated in the work, following Rule 1(a) of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690, ECE/TRANS/WP.29/690/Amend.1 and Amend. 2): Australia, Belgium, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Italy, Japan, Latvia, the Netherlands, Norway, Republic of Korea, Russian Federation, Slovakia, Spain, Sweden, Switzerland, South Africa, Turkey, the United Kingdom of Great Britain and Northern Ireland (UK) and the United States of America (USA). An expert from the European Commission (EC) also participated. Experts from the following non-governmental organizations (NGOs) participated: the European Association of Automotive Suppliers (CLEPA), the International Motorcycle Manufacturers Association (IMMA), the International Organization for Standardization (ISO), the European Tyre and Rim Technical Organisation (ETRTO) and the International Organization of Motor Vehicle Manufacturers (OICA). Upon the special invitation of the Chair the following non-governmental organizations (NGOs) participated:
International Association of the Body and Trailer Building Industry (CLCCR), the Federation of European Manufacturers of Friction Materials (FEMFM), Fédération Européenne de la Manutention (FEM) and Imported Tyre Manufacturers Association (ITMA).

2. GRRF considered and adopted the agenda prepared for the seventy-sixth session (ECE/TRANS/WP.29/GRRF/2014/1 and Add.1).

3. GRRF also adopted the running order for the session as proposed in GRRF-76-01 and the updated consolidated agenda GRRF-76-37-Rev.1, including all informal documents considered during the session.

4. The informal documents distributed during the session are listed in Annex I of the session report.

5. The expert from OICA introduced GRRF-76-15, GRRF-76-16 and GRRF-76-17-Rev.1 proposing to insert a footnote in the scope of the original version of Regulation No. 131, the 01 series of amendments to Regulation No. 131 and Regulation No. 130, containing guidance or recommendations to the Contracting Parties applying these Regulations for potential exemptions.

6. Several Contracting Parties (CPs), felt that guidance could be useful; however others felt that it would not be appropriate to use a regulation to advise Contracting Parties on policy considerations. OICA agreed to consider other options for consideration by GRRF.

7. This item was discussed in conjunction with agenda item 10(b), see para. 36. The expert from OICA introduced ECE/TRANS/WP.29/GRRF/2014/10 as amended by GRRF-76-18 proposing to delete the provisions related to the introduction of ESC and BAS in the two draft Regulations mentioned in para. 36. in favour of separate and discrete regulations for these technologies. GRRF agreed to resume consideration of this item and keep the documentation on the agenda of the September 2014 session of GRRF.

8. The Chair of the informal working group on ACV introduced GRRF-76-29 proposing follow-up actions for the ACV informal working group, on road trains. GRRF noted that this matter would interest both braking experts and mechanical coupling experts. GRRF supported GRRF-76-29 and requested a proposal for a Terms of Reference update for the informal group, which the chair of the informal group volunteered to prepare.

9. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2013/13, adopted during the seventy-fifth GRRF session. The document remained on the agenda of GRRF, pending the submission of the adopted text to WP.29 and AC.1 for each Regulation.

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 UK reported on the outcome of the group of experts working on updated transitional provisions of UN Regulations Nos. 13 (GRRF-76-02) and introduced ECE/TRANS/WP.29/GRRF/2014/7. GRRF adopted this proposal as reproduced in Annex II to the session report and requested the secretariat to submit it to World Forum for Harmonization of Vehicle Regulations (WP.29) and the Administrative Committee of the 1958 Agreement (AC.1) for consideration at their June 2014 sessions as part of the draft Supplement 12 to the 11 series of amendments to UN Regulation No. 13.

12. The expert from UK also reported on the outcome of the group of experts working on updated transitional provisions of UN Regulations Nos. 13-H (GRRF-76-04) and introduced ECE/TRANS/WP.29/GRRF/2014/16 as amended by GRRF-76-30. GRRF adopted this proposal as reproduced in Annex III to the session report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as part of the draft Supplement 16 to UN Regulation No. 13-H.

13. At the request of the expert from Japan, GRRF agreed to take note that the consolidation of the transitional provisions does not change the interpretation of the current text of the Regulation (e.g. transitional provisions for supplements). GRRF agreed that the absence of the historical dates from the latest text simplified interpretation of the requirements for the purposes of issuing type approval. GRRF also noted that references to “registration” had been removed in favour of “national or regional type approval” as recommended by the guidelines in ECE/TRANS/WP.29/1044/Rev.1.

14. GRRF agreed to note in this report the meaning of “according to the basis of the requirement that existed at the time of the original approval” in para. 12.5. of ECE/TRANS/WP.29/GRRF/2014/7. In this context, GRRF agreed that “the requirement that existed” refers to those requirements applied at that time, taking into consideration of the transitional provisions.

15. As a follow-up to ECE/TRANS/WP.29/GRRF/75, para. 14, the secretariat introduced GRRF-76-09 containing the draft revision 8 of UN Regulation No. 13. GRRF noted some comments and requested the secretariat to take them into account when issuing the Revision 8 to Regulation No. 13.

16. The expert from the Russian Federation introduced GRRF-76-20, proposing a clarification of UN Regulation No. 13. GRRF adopted this proposal as reproduced below and requested the secretariat to submit the proposal to WP.29 and AC.1 for consideration at their June 2014 sessions as a part of the draft Supplement 12 to the 11 series of amendments to UN Regulation No. 13.

Footnote 12, amend to read:
“…more than 2 axles and hydraulic transmission), Class I, Class A and articulated vehicles of categories M2 and M3, N2 tractors for semi-trailer with a gross vehicle mass (GVM) between 3.5 and 7.5 tonnes…”

17. The expert from CLEPA introduced GRRF-76-21. GRRF requested the secretariat to distribute this document with an official symbol at its September 2014 session.

18. The expert from CLEPA withdrew GRRF-76-31.

19. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2014/14 on behalf of the Chair of the informal working group on Regulation No. 55. GRRF requested clarifications on the changes to the standard ISO 7641/1-2012 when compared with the current regulated version. GRRF agreed to revisit this item at its next session.

20. The expert from IMMA introduced ECE/TRANS/WP.29/GRRF/2014/5 and ECE/TRANS/WP.29/GRRF/2014/6 as amended by GRRF-76-19 and GRRF-76-36-Rev.1 proposing general clarifications to UN Regulation No. 78 and specific clarifications for the use of Combined Braking Systems (CBS). The proposals received some comments and the expert from IMMA consolidated these requested changes into a revised proposal (GRRF-76-45). The expert from India introduced GRRF-76-32 on three wheelers, which GRRF agreed to revisit on the basis of a revised proposal at its September 2014 session. GRRF requested the secretariat to distribute GRRF-76-45 with an official symbol at the September 2014 session.

21. The expert from IMMA introduced on behalf of the sponsor, Italy, ECE/TRANS/WP.29/GRRF/2014/3 and ECE/TRANS/WP.29/GRRF/2014/4 as amended by GRRF-76-35-Rev.1, proposing similar amendments to those proposed for Regulation No. 78 (see para. 20, agenda item 5a). These proposals received comments and the expert from IMMA consolidated these requested changes into a revised proposal (GRRF-76-44). GRRF requested the secretariat to distribute GRRF-76-44 with an official symbol at its September 2014 session.

22. The Chair of GRRF presented ECE/TRANS/WP.29/GRRF/2014/9 based on GRRF-75-18, discussed at the seventy-fifth GRRF session. The expert from CLEPA introduced GRRF-76-42-Rev.1 proposing an amendment to the scope of the Regulation as well as further minor clarifications. GRRF adopted this proposal as amended by Annex IV of the session report and requested the secretariat to submit the proposal to WP.29 and AC.1 for consideration at their June 2014 sessions as a part of the draft Supplement 2 to the 02 series of amendments to Regulation No. 90.

23. The expert from USA, referring to ECE/TRANS/WP.29/2013/63, reported on the progress made on unresolved issues before its potential adoption. GRRF noted that testing results on the wet traction test procedure from the USA would need to be evaluated before a recommendation could be made to refer the GTR for adoption by WP.29/AC.3. The Chair of GRRF indicated that he would provide a status update to WP.29 at the upcoming March session and ask for additional time to consider the USA research results. A second issue concerning the bead unseat test for which the expert from China had planned to offer a proposal was resolved when it was announced that China would accept the existing procedure in the GTR.

Note by the secretariat: WP.29 agreed (in March 2014) to hold an extraordinary GRRF session during the Thursday afternoon session of WP.29 on 26 June 2014 dedicated to this agenda item.

24. Recalling the purpose of ECE/TRANS/WP.29/2013/66, the Chair of GRRF stressed that WP.29 was expecting GRRF to conclude its deliberation about the wet grip limit values. The GRRF experts introduced their positions (GRRF-76-05, GRRF-76-07, GRRF-76-08, GRRF-76-11, GRRF-76-12, GRRF-76-26, GRRF-76-27, GRRF-76-28). The expert from the EC reported on the concerns expressed by the Directorate-General for Mobility and Transport of the European Commission (DG Move). GRRF confirmed the limit values proposed in para. 6.2.2. for Tyres of C2 category and agreed to amend the proposed limit values in para. 6.2.3. for Tyres of C3 category in ECE/TRANS/WP.29/2013/66. GRRF requested the secretariat to submit this amendment as reproduced in WP.29-162-05 to WP.29 and AC.1 for consideration at their March 2014 session.

24bis. The expert from the Russian Federation presented GRB-59-02 proposing a tyre rolling resistance test results evaluation using a mathematical algorithm, to be added as an alternative to the existing one in the text of the Regulation. He also presented the results of a validation study of the proposed algorithm for tyres of the C1 category performed in France, in cooperation with the Russian Federation (GRB-59-07 and GRB-59-08). GRRF noted that this proposal may be submitted by GRB to WP.29 as a supplement to UN Regulation No. 117. GRRF recommended further steps for a better understanding of the proposed method’s sensitivity, suggesting: (i) extending the validation study for tyres of categories C2 and C3 and (ii) verifying the application of the proposed alternative in the conditions of the conformity of production. The GRRF Chair invited the experts to provide their comments on the proposal to the GRB secretariat with a copy to the expert from the Russian Federation.

25. The expert from ETRTO presented GRRF-76-25, supporting ECE/TRANS/WP.29/GRRF/2013/20 amended by GRRF-76-06 as well as ECE/TRANS/WP.29/GRRF/2013/22 [concerning UN R106] and proposing the insertion of All Terrain Vehicle (ATV) tyres in UN Regulation No. 75.

26. In response to the proposal above, the expert from IMMA presented GRRF-76-41 supporting the insertion of provisions for ATV tyres in UN Regulation No. 106. GRRF agreed to revisit this subject at it September 2014 session on the basis of a revised proposal that the experts from IMMA and ETRTO agreed to prepare.

27. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2014/2 as amended by GRRF-76-41, inserting a new marking and, under “categories of use”, a definition for construction application (Industrial tractor) tyres. GRRF adopted this proposal as amended by Annex V of the session report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as a part of the draft Supplement 11 to Regulation No. 106.

28. The expert from ETRTO also introduced ECE/TRANS/WP.29/GRRF/2014/15 clarifying the marking requirements in Regulation No. 106. GRRF adopted this proposal, not amended, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as a part of the draft Supplement 11 to Regulation No. 106.

29. The Chair of GRRF announced the next ITS informal group session scheduled to be held in March 2014 in Geneva.

30. He invited a presentation from two experts from the EU research project on vehicle platooning “Companion”, (GRRF-76-43). GRRF welcomed the idea of the Chair to share information about innovations related to vehicles automations and self-driving vehicles. GRRF agreed to dedicate one permanent agenda item to this subject and requested the secretariat to explore possibilities to dedicate an (additional) session (half a day) to this subject.

[A Scania video on platooning has also been posted on the WP.29 website and can be accessed via this link.]

31. At the request of the author of ECE/TRANS/WP.29/GRRF/2014/8, GRRF agreed to defer this agenda item to its next session.

32. The expert from Sweden introduced GRRF-76-10 reporting on a meeting of interested experts on LKAS. He concluded that he, together with the expert from Japan and other interested experts, would meet again with a view to producing an informal document proposing amendments to Regulation No. 79, defining provisions addressing the safety of LKAS.

33. The Ambassador and the Chair of GRRF gave a short oral report on the activities of the IWVTA informal group and its subgroups.

34. The expert from OICA resumed the discussion that started during the seventy-fifth GRRF session on the proposal to separate the Tyre Pressure Monitoring System (TPMS) provisions from UN Regulation No. 64. GRRF agreed to resume consideration of this proposal at its next session on the basis of a written proposal, which the expert from OICA volunteered to prepare.

35. The expert from OICA introduced ECE/TRANS/WP.29/GRRF/2014/13, as amended by GRRF-76-39, proposing the wording of a draft regulation on the Tyre installation for M1 vehicles. The proposal received some comments and GRRF agreed to revisit this item on the basis of a revised proposal that the expert from OICA volunteered to prepare.

36. The expert from OICA introduced a proposal for a draft Regulation on Brake Assist Systems (ECE/TRANS/WP.29/GRRF/2014/11 amended by GRRF-76-14 and GRRF-76-33) and a proposal for a draft Regulation on Electronic Stability Control (ECE/TRANS/WP.29/GRRF/2014/12 amended by GRRF-76-13). Addressing the open question on how to deal with the original Annex 8 of Regulation No. 13-H, he presented GRRF-76-40 and the corresponding proposal amending the draft mentioned above (GRRF-76-22 and GRRF-76-23). GRRF agreed to resume consideration of this item and keep the documentation on the agenda of the September 2014 session of GRRF.

37. The Chair recalled that amendments to UN Rules Nos. 1 and 2 were under consideration by AC.4 at its March 2014 session.

40. The expert from the UK introduced GRRF-76-03 containing the list of acronyms contained in the UN Regulations under the responsibility of GRRF. The expert from the UK noted that “VSF” was used in GRRF as “Vehicle Stability Function” while in GRSP as “V. Seat Fixture”

41. The expert from Denmark reported on complaints received from road user’s and truck drivers associations stating that there can be too much air pressure transmitted to the semi-trailer resulting in unnecessary tell-tale activation and asked whether other experts received similar comments. GRRF agreed that more information was needed on this issue and invited experts to consider whether similar concerns existed in their national territories.

38. The Secretary reported on the highlights of the 161st session of WP.29 (ECE/TRANS/WP.29/1106).

39. The Chair recalled the purpose of ECE/TRANS/WP.29/GRRF/2013/31 and recalled the work done by the informal group on IWVTA on this issue. GRRF agreed to delete this agenda item.