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UN R49: Proposal for a Supplement 5 to the 06 series of amendments
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Reference Number: WP.29/2017/130
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Proposal to introduce provisions to align UN R49 with recently introduced stage D EU legislation in order enable manufacturers to continue to utilize the provisions in paragraph 4 of Annex 9A to approve light commercial vehicles with a light duty OBD architecture under this regulation. This proposal incorporates all of the provisions of the latest amendment to EU legislation. As stage D is unrelated to OBD, the proposal is to make stage C and all subsequent stages equivalent to EOBD 6-2. The proposal corrects - the constants for equation (34) to calculate exhaust mass flow using carbon balance method,
- the constants used for CVS verification,
- the formula for regression analysis according to Annex 4, Appendix 3, and
- the rise time (to 3.5 s from 2.5 s) for the PEM analyzers under paragraph A.2.2.1. of the 06 series.
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Meeting Sessions: 173rd WP.29 session (14-17
Nov 2017)
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Document date: 25 Aug 17
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Document status: Adopted text published
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Relevant to: UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions
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Adoption Vote
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This proposal (WP.29/2017/130) was adopted by the World Forum. Thirty-three Contracting Parties out of the 44 applying UN R49 were present for the vote by AC.1. Thirty-three voted in favor with zero against and zero abstaining.
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