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WP.29/2015/5

Proposal for Supplement 7 to the 02 series of amendments to Regulation No. 117

Source(s)

Date

22 Dec 2014

Status

Adopted text published

Subject

UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

Impact

02 series of amendments | Supplement 7

Meeting(s)

WP.29 | Session 165 | 10-13 Mar 2015

Agenda item 4.6.4. Proposal for Supplement 7 to the 02 series of amendments to Regulation No. 117

Agenda item 4.6.4. Proposal for Supplement 7 to the 02 series of amendments to Regulation No. 117

Proposal as approved by the GRB to introduce a “Deceleration Calculator” (dω/dt) for use in the UN R117 test procedures. This procedure was developed by Russia and validated by an ad hoc group (including NAMI, UTAC, and ETRTO). This proposal also includes clarifications concerning snow tire markings approved by the GRRF during its 78th session.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRB | Session 60 | 1-3 Sep 2014

11. The expert from the Russian Federation introduced some clarifications to be included in UN Regulation No. 117, on data processing for the measurement method of tyre deceleration value obtained in differential form dω/dt (ECE/TRANS/WP.29/GRB/2014/7). GRB adopted this proposal, as amended by Annex V to this report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their March 2015 sessions.

GRRF | Session 79 | 16-20 Feb 2015

28. The Secretary presented ECE/TRANS/WP.29/2015/5 based on the proposals adopted by GRRF and the Working Party on Noise (GRB) and containing a correction introduced by the secretariat. GRRF endorsed the correction proposed (see para. 2.16.).

GRRF | Session 78 | 16-19 Sep 2014

29. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2014/25 concerning snow tyres for use in severe snow conditions, specifically the items to be listed in the communication form of Annex 1 to UN Regulation No. 117.

31. GRRF adopted ECE/TRANS/WP.29/GRRF/2014/25 as reproduced in Annex IV to this report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2015 sessions as draft Supplement 7 to 02 series of UN Regulation No. 117.

32. The expert from the Russian Federation, Vice-Chair of the Working Party on Noise (GRB), informed GRRF that a revised version of ECE/TRANS/WP.29/GRB/2014/7, including some minor editorial amendments, had been submitted by GRB to WP.29 and AC.1 for consideration at their March 2015 sessions.