Proposal to correct errors and clarify provisions based on requirements introduced in the Amendment 6 to UN GTR No. 15.

Proposal to correct errors and clarify provisions based on requirements introduced in the Amendment 6 to UN GTR No. 15.

Proposal to improve the text of provisions introduced in Amendment 3 to UN GTR No.4.

This explanatory note by IWG PMP, updates on the proposals for solid particle number (SPN) measurements for the type approval of heavy-duty engines. The explanatory note addresses (i) the changes to the current SPN23 methodology, (ii) the proposed changes for the second alternative option to extend the particle size detection range to 10 nm particles, (iii) the proposed changes to allow direct SPN sampling with fixed dilution ratio.

Compares terminology between M.R. 2 in comparison to UN GTR15

Proposal by IWG EVE (Electric Vehicles and the Environment) of the draft text for a new UN GTR on in-vehicle battery durability for electrified vehicles.

EPPR IWG proposes to draft the UN GTR on durability based upon the European Regulation No. 168/2013 and its supplementing regulations (Euro 5) to provide test procedures and requirements for the durability of after-treatment devices.

Proposes to amend the scope to clarify that UN R 49-06 series engine certification (corresponding to Euro VI) have no smoke and does not include the certification according to UN Regulation 24.

Proposal makes changes to take into consideration the availability of gases for flame ionization detectors and the linearization of the gas analyzer.
UN R49 defines no linearity requirements for humidity sensors. As the humidity content of the intake air is an essential measure for the calculation of the specific exhaust emission, it is important to add requirement for humidity sensor (Reference: ISO 16183 the accuracy of the absolute humidity shall be +- 5%).

As the gas divider is a necessary tool to verify the linearization of the gas analyzer it is mandatory that the deviation of the gas divider is lower than that of the instrument under test. In combination with a calibration gas which has an accuracy of 1 % and a gas divider, which has an accuracy of 1 % it is only possible to reach a guaranteed analyzer accuracy of 2 %.

In the automotive industry Helium is used as so fuel gas for flame ionization detectors (FID) to measure Hydrocarbon emissions. In the FID fuel gas Helium is mixed with Hydrogen in a ratio of 40 % H2 and 60 % He. The annual fluctuations of the helium global market lead to an insufficient supply with FID fuel gas, like happened lately during summer 2018. In order to prevent the industry from the fluctuations of the global helium market, the US legislation reacted already in 2014 and allowed the usage of Nitrogen as batch gas for the FID fuel gas.

Proposes the modifications (essentially corrections of mistakes) are derived from the text of document ECE/TRANS/WP.29/GRPE/2021/7 from Japan, related to UN GTR 04, as modified by Informal Document GRPE- 82-09

Proposes updates and amendments to proposal to introduce new requirements relating to Auxiliary Emission Strategies, cold engine starts and the use of Portable Emissions Measurement Systems (PEMS) to measure particle numbers

The presentation supports the proposal for a Shortened Test Procedure NEDC for PEV acc. to WLTP (including adding PEV COP procedure alternative).

Proposes a shortened Test Procedure NEDC for PEV and alternative for conformity of procedure.

Proposal identifies 2 concerns:
“Coasting“ – Coasting is defined in GTR 15 and UNR 154 and must be deactivated for testing, may raise concerns for the approval of many hybrid vehicles and for conventional vehicles with modern start stop systems.
“Single roller dynamometer in 4WD operation“ – This combination is forbidden by GTR 15 and UNR 154 for the Type 1
test. There appears to be no reason for this ban (restraint systems must meet requirements for all configurations) other than an assumption that the configuration is not used for type 1 testing

Proposal to amend Annex 7 – Appendix 2 paragraph 1., to provide the road load power calculation method that may be used

This proposal aims at harmonizing the text of UN Regulation No. 83 and UN Regulation No. 101. Furthermore, one error was found in the formulas used for the calculation of a NEDC road load values from those determined according to UN GTR No. 15 (WLTP) and one wrong cross reference in the 01 series of amendments to UN Regulation No. 101.
1. Harmonization of UN Regulation No. 83 (Annex 4a, Appendix 7b, paragraph 1.) and UN Regulation No. 101 (Annex 7, Appendix 2, paragraph 1.); in Annex 7, Appendix 2, paragraph 1. Vehicles in general are not approved according to UN GTR No. 15, therefore the text phrase of UN R83 is recommended.
2. Correction of wrong reference to Annex 4 instead of Annex 7 of UN GTR No.15; in Annex 7, Appendix 2, paragraph 2.1.(b).
3. When copying the methodology from EU regulation, a ‘.’ was wrongly introduced instead of a ‘-‘ in the formula.

Proposal suggests that 2 new series of amendments are necessary: 83.08 to cover ISC for the WLTP Test and 83.09 to add ISC for the new UNR „RDE“ (which also has no ISC requirements) because Contracting Parties should be free to apply UNR 154 and UNR "RDE“, each with or without ISC without connection
A Contracting Party applying UNR 154 and UNR 83.08 but not UNR "RDE“ would be obliged to conduct or at least monitor RDE ISC in the absence of 83.09

OICA comment on the IWG EVE proposal for GTR on in-vehicle battery durability

This proposal from IWG PMP is based on the PN measurement procedure laid down in UN R49 but should be considered exclusively a technical working document. The purpose of this document is only to discuss within the PMP group the changes/additions needed to modify the PN cut-off size from 23 to approximately 10 nm and to include raw exhaust sampling

Status report from IWG PMP

Status report from IWG EPPR

Clarifications regarding “coasting” and twin roller dynamometers in 4WD operation.

Proposal by the expert from OICA to clarify concerns about terms "coasting"and “Twin roller dynamometers in 4WD operation”

Statue report by the IWG EVE

The presentation by the experts from UTAC/CERAM on the introduction of comprehensive, simple rating information to consumers, fleet operators and other stakeholders

Text prepared by IWG on EVE based on GRPE-82-27.

Text prepared by IWG PMP for a new Consolidated Resolution concerning the test procedure for the measurement of ultra-fine particle emissions from Heavy Duty engines.

Proposal to align provisions in paragraph 7 and Annex 6.

Proposal to correct and clarify the text and to introduce linearity requirements for humidity sensors to address humidity content measurement for the calculation of the specific exhaust emission.

Proposes to allow the use of nitrogen as batch gas for FID fuel gas and introduces the requirements for humidity sensors.

Consolidates the existing text of the Regulation with that of the reference document adopted by GRPE 82nd session

Introduces a shortened test procedure for PEVs as well as an update of the COP test procedure in order to align with proceeding and procedures described in UN R154.

Proposal aims at permitting the use of the latest reference fuels for evaporative emissions approval of vehicles

The schedule of meetings can also be found on the GRPE calendar.

Updates to the draft text submitted by the EVE informal group.

Proposal to modify provisions of the 01 series pursuant to consideration of the proposal to address the use of the phrase “if PN measurement is required” in the original text of the regulation.

Proposal to address use of the phrase “if PN measurement is required” throughout the regulation given that PN measurement in both Level 1A and Level 1B is now required.

The January 2022 GRPE session is tentatively scheduled for 11-14 January. The deadline for formal submissions is 19 0ctober 2021.

Proposal to expand the scope to include more vehicle types (higher-powered three-wheeled vehicles) and to introduce additional fuel types to be included in the test procedure.

Aims to improve the clarity of the requirements regarding inclusion of vehicles in a road load family on the basis of the n/v ratios.

Definition and exemptions for special purpose vehicles are necessary. Possible amendments have been shown for
• New definitions in R.E.3 and
• Requirementemissiontothegreatestextent,
• ExemptionsfordriverinducementsystemandCOP/in-serviceconformity.

Proposes
• a technically neutral description for the measurement of crankcase pressure in Type III Test.
• the option to test a four-wheel vehicle without being forced to use an artificially created two-wheel drive
mode.

This document aims to clarify OBD monitoring requirements for combustion-ignition engines with regard to Level 1A and Level 1B. The modifications to the current text of the Regulation are marked in bold for new or strikethrough for deleted characters.

This document aims to:
• harmonize the KCO2 family concept from UN GTR15 Amendment 6 with this Regulation.
• harmonize the correction of CO2 results against target speed in Level 1A with Level 1B and the most stringent
Level 2.
• delete correction criterion c as it is no longer needed.
• propose a clarification and specification in the ATCT family criteria.

Proposal by the USA, European Union, Japan and the Republic of Korea to request revision of the authorization to develop a future proof global technical regulation of Real Driving Emissions based on Phase 2 work by the RDE informal working group.

Agenda updated to include the latest informal submissions.

Proposal to ensure that Level 2 is the latest version of this Regulation and is therefore subject to mutual recognition under the 1958 Agreement, given that there is a concurrent proposal to for an 02 series of amendments which introduces particle number requirements and limits for Level 1B. This proposal for a 03 series of amendments also aligns the particulate measurement procedures with changes introduced in GTR No 15 Amendment 6 as well as other adaptations to technical progress.

Proposal to introduce particle number requirements and limits for Level 1B. The proposal also aligns the particulate measurement procedures with changes introduced in GTR No 15 Amendment 6 and other adaptations to technical progress.

Amendments from the EVE informal group to the draft new UN GTR on electric vehicle battery durability. This document is also available with tracked changes in pdf format and in docx format.

Proposal to align UN R85 with ISO 1585:2020.

Proposal to align UN R24 with to align the UN R85 and ISO 1585:2020.

Proposal to introduce provisions specific to special-purpose vehicles.

Proposal to introduce provisions for the approval of a vehicle type with an approved engine with regard to their emission of pollutants, and the reporting of the CO2 emissions and fuel consumption for type approval of vehicles with a reference mass exceeding 2,380 kg but not exceeding 2,610 kg.

Proposal to expand the scope to include more vehicle types (higher-powered three-wheeled vehicles) and to introduce additional fuel types to be included in the test procedure.

Proposal to pursue development of methods for life cycle assessment (LCA) as an overall assessment from production to use and disposal as a means to substantially reduce CO2 emissions.

The consolidated text with amendments also available with tracked changes in pdf format and docx format.

The proposed amendments are also available in a consolidated text with tracked changes in pdf format and in docx format.

Amendments to draft 02 and 03 series of amendments.

Revised document prepared by the GRPE chair pursuant to discussions held during the 12th session.

Proposal to harmonize:

• Requirements for the determination of CO2, fuel and electric energy consumption of the discharge requirement for OVC-HEV with an operating mode switch with its stop criterion.
• Preconditioning requirement (Annex 9, determination of electric range) and UN R83 (Annex 14, provisions for emissions test procedures for HEV).

Illustration to support proposals explained in document GRPE-85-13.

Proposal to clarify the scope of Regulation 85 concerning electric drivetrains.

Proposal to permit the use of hydrogen (H2) as fuel for type approval of heavy-duty vehicles.

Proposal to correct the recursive formula in the procedure for verifying the conformity of production requirements if the production standard deviation given by the manufacturer is either not satisfactory or not available.

Proposal to correct the recursive formula of the 05, 06 and 07 series of amendments to UN Regulation No. 83 in the procedure for verifying the conformity of production requirements if the production standard deviation given by the manufacturer is either not satisfactory or not available.

The use of test fuels is permitted for certification testing of gaseous and particulate pollutants and power/smoke testing in Europe. However, other countries that have adopted and referenced UN R85 may not allow this. This proposal would permit the use of the same test fuel in cases where the testing for emission of gaseous and particulate pollutants is conducted at the same time as the testing under UN R85.

The use of test fuels is permitted for certification testing of gaseous and particulate pollutants and power/smoke testing in Europe. However, other countries that have adopted and referenced UN R24 may not allow this. This proposal would permit the use of the same test fuel in cases where the testing for emission of gaseous and particulate pollutants is conducted at the same time as the testing under UN R24.