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Document Title UN R139: Proposal for Supplement 1
Reference Number WP.29/2018/60
Date
5 Apr 2018
Summary Proposal to clarify the purpose of UN R139 which was originally established through the extraction of brake assist system (BAS) provisions from UN R13-H on brake systems. Within the context of UN R13-H, the BAS provisions were written to assess performance in cases where a vehicle was fitted with a brake assist system. As a stand-alone regulation, UN R139 applies only to vehicles that are equipped with BAS. Therefore, this supplement proposes to refine the text to remove the “if fitted” language and ensure that UN R139 can only be applied to a vehicle equipped with a BAS.
Rulemaking Area(s) UN R139 Brake Assist Systems
Proposal Status Adopted
Meeting(s)
Related Documents
GRRF/2018/2 Proposal for a Supplement to Regulation No. 139 (superseded)
WP.29-175-04 UN R139: Proposal to amend the draft Supplement 1 (WP.29/2018/60) (superseded)
Downloads
UNECE server .pdf format .docx format
Excerpts from session reports related to this document
WP.29 | Session 175 | 18-22 Jun 2018

83. The World Forum considered the draft amendments under agenda items 4.8.1 to 4.8.9 and recommended their submission to AC.1 for voting, subject to the following corrections:

In ECE/TRANS/WP.29/2018/53, page 2: for “Supplement 15” read “Supplement 16”,
In ECE/TRANS/WP.29/2018/59/Add.1, correct to read:
Insert the missing amendment to former paragraph 3.2.10, to read:

"3.2.11.An indication, by means of the “PSI” index (as explained in Annex 7, Appendix 2 to this Regulation) or in kilopascals (kPa), of the inflation pressure to be adopted for the load/speed endurance tests. This indication may be placed on one sidewall only."

Annex 7, paragraph 1.3., amend to read:
“1.3.Inflate the tyre to the pressure corresponding to the indication on the sidewall as specified in paragraph 3.2.11. of this Regulation.”

84. WP.29 referred informal documents WP.29-175-04 and WP.29-175-05 to the appropriate GR for further consideration.