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GRPE/2019/11

UN R85: Proposal for a new Supplement

Source(s)

OICA

Date

12 Mar 2019

Status

Superseded

Subject

UN R85 Net Power Measurement

Meeting(s)

GRPE | Session 79 | 21-24 May 2019

Agenda item 5. UN Regulations Nos. 24 (Diesel smoke), 85 (Measurement of net power), 115 (LPG and CNG retrofit systems), 133 (Recyclability of motor vehicles), and 143 (Heavy-Duty Dual-Fuel Engine Retrofit Systems (HDDF-ERS))

Proposal to allow an alternative test method to “set the charge air cooler outlet temperature during bench test to temperature which was observed by vehicle test and corrected to the reference temperature specified in paragraph 5.2.1.” of Annex 5. This alternative method is well recognized in SAE J1349.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRPE | Session 79 | 21-24 May 2019

33. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2019/11 and GRPE-79-27-Rev.1 that amended the footnote 9 in table 1 of Annex 5 to introduce an alternative for the measurement of power of charge-air-cooled engines. The representative from United Kingdom of Great Britain and Northern Ireland required clarifications on considerations about the test temperature and potential concerns about tests being done at extreme temperatures. Amendments were provided in GRPE-79-27-Rev.1. GRPE supported the new proposal in GRPE-79-27-Rev.1 as reproduced in Annex V of the session report.

34. GRPE endorsed the proposal and requested the secretariat to submit Annex V of the report to WP.29 and the AC.1 for consideration and vote at their November 2019 sessions as draft Supplement 10 to UN Regulation No. 85.