Proposal to complete the clarification of the basis of the petrol tank capacity restriction for mono fuel gas vehicles and address some administrative issues that have been highlighted during the transposition of WLTP.

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

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

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.

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.

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.

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.

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.

Amendments to draft 02 and 03 series of amendments.

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

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

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

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.

Annex B6 procedures include references to rear position and other lamps. In line with UN R48 and its 08 series of amendments which would permit switching off of rear position and other lamps when ambient light conditions are above 7,000 lux to avoid unnecessary fuel consumption, this proposal would permit ambient lighting during dynamometer operation above this threshold.

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption (in alignment with UN R48 wording).

Proposal to update the original text of UN R154 with corrections and clarifications identified during the development of the 02 series of amendments.

Proposal to update the 01 series of amendments with corrections and clarifications identified during the development of the 02 series of amendments.

Presentation on how to harmonize the requirements of the 06 and 07 series of amendments to UN R83, the 01 series of amendments to UN R101 and the original, 01, 02 and 03 series of amendments to UN R154 respectively, and to ensure consistent type-approval test conditions with the introduction of the 08 series of amendments to UN R48.

Informal document GRPE-81-29 rev 1 was submitted to GRPE in June 2020 to clarify some elements surrounding the introduction of UN Regulation No. 154. This paper is updated here to add an additional clarification of the introductory provisions in the newly adopted 02 series of amendments. This document with tracked changes in word format and pdf version is also available.

Proposal to align with UN R48 08 series of amendments (to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption). The aim of the document is to reach consensus to enable adoption of a proposal during the next GRPE session (88th session in June 2023).

• UN R154
• Current status regarding reviewing Japan proposal on CoP section
• Current status regarding reviewing Japan proposal on PHEV calculations

• GTR 15: Annex 13
• Current status regarding GTR No.15 Annex 13

Proposal to harmonize the requirements of the 00, 01, 02 and 03 series of amendments to UN R154 based on the following justifications:

1. Correction of a wrong reference. In Paragraph 3. the functional requirements for the OBD system are included. Paragraph 4. describes the requirements relating to type-approval including the provisions for deficiencies.
2. For Series 02 and 03, SAE J 1979-2 was allowed as a standard for the transmission of OBD relevant information. ISO 14229 was removed from the list of allowed standard. This proposal aligns series 00 and 01 with series 02 and 03.
3. The standards used for transmission of OBD information are maintained by international standardisation bodies (ISO, SAE). The standardisation body maintaining the affected standard has to be informed.
4. Alignment of wording between the first sentence of paragraph 3.2.1.2. (“ambient or engine temperatures”) and the second sentence, where “or engine” was missing to avoid misunderstanding and ambiguity. Engine temperature is sometimes used as a substitute for ambient temperature. In this case, the engine temperature is evaluated once after a longer engine shut off phase. Only in this case an approval is necessary, as this is the only case, where an OBD monitor is disabled for the complete trip.
5. The OBD requirements for Diesel engines in Paragraph 3.3.4 of Annex C5 are limited to Level 1A. The requirements in paragraphs 6.3. (“Failure modes to be tested”) and 6.4. (“OBD system test”), are not limited to Level 1A. This proposal corrects this.
6. Align Paragraph 6.5.1.3. with GTR No.15 to avoid ambiguity.
7. Alignment with Series 01/03. Those allow the use of alternative preconditioning
   methods for Level 2.

Background: Manufacturers design OBD monitoring conditions and functionalities for market specific driving conditions. Reliable monitors need enable conditions, which run the OBD monitors under circumstances, where failure detection works properly. Those enable conditions are not for all monitors represented by a three-phase WLTC, e.g. some monitors require higher load conditions. For those monitors alternative preconditioning methods are necessary.

Proposal to align the Regulation with the latest regional requirements.

Proposal to align the Regulation with the latest regional requirements.

Proposal to incorporate corrections, clarifications, and improvements to the text of UN R154 that have already been introduced in the 02 and 03 series of amendments to the Regulation.

Proposal to incorporate corrections, clarifications, and improvements to the 01 series of amendments to UN R154 that have already been introduced in the 02 and 03 series of amendments to the Regulation.

Proposal brings clarity in the text relating to alternative procedures for demonstrating Conformity of Production of evaporative emissions control systems and consistency in the rounding of the Deterioration Factors (DFs). It also proposes an amendment to the formatting of a paragraph relating to Speed Trace Tolerances in order to bring clarity.

Consolidated revision to make corrections, clarifications and improvements that have already been introduced into the 02 and 03 series of amendments of UN R154. The proposal is based on document GRPE/2024/2, GRPE-90-11-Rev.1, and GRPE-91-11 PEV run-in provisions only).

Proposal to align the manufacturer information document with the type-approval
certificate.

Consolidated revision to make corrections, clarifications and improvements that have already been introduced into the 02 and 03 series of amendments of UN R154. The proposal is based on document GRPE/2024/3, GRPE-90-11-Rev.1, and GRPE-91-11 PEV run-in provisions only).

Proposal to amend additive deterioration factors and the PEV run-in requirement and to effect corrections and editorial improvements.

Draft proposal to align the Regulation with the latest regional requirements (e.g., Euro 7) as submitted to GRPE (Informal document GRPE-92-09e).

Review on the possible direction
(1) new series of amendment
(2)single series structure

Proposal to introduce optional calculation method for determining f₀ and f₂ road load coefficients, allow measurement of drivetrain delta on component dynamometer, permit evaluation of split runs to increase data base, and enable test vehicle configuration using interpolation method. The calculation method determines final f₀ and f₂ values considering theoretical delta between coast down vehicle and final vehicle. Component dynamometer measurement increases accuracy because not all combinations of road load relevant components can be assembled, allowing all component combinations to be evaluated independently.

Proposal concerning the approval of the wind tunnel facilities.

Proposal to bring clarity in the text relating to On-Board Diagnostics (OBD).

Calibration of measurement equipment to PN10 measures more particles than calibration to PN23. It is therefore logical that compliance with a limit when measured according to PN10 demonstrates compliance with the same limit according to PN23 but this text should be added for legal certainty.

Small Volume Manufacturers (SVMs) are defined as manufacturers producing fewer than 10,000 M1 or 22,000 N1 vehicles annually in the European Union. Ultra Small Volume Manufacturers (USVMs) produce fewer than 1,000 vehicles annually. SVMs receive exemptions from certain systems and testing requirements, including OBM, EEEDWS, and OBFCM installations for M1 and N1 vehicles. Type approvals granted before July 1, 2030 remain valid. In-service conformity checks are not mandatory for SVMs.

Proposal for a new UN Regulation for Uniform provisions concerning the approval of light duty passenger and commercial vehicles with regards to On-board monitoring (OBM) systems, environmental vehicle passport (EVP) and in-vehicle display of environmental data. An informal document amending this proposal is under development.

Proposal to harmonise and consolidate the regional procedures and limits, update the provisions to align with Euro 7 requirements, including new particle number (PN10) provisions, a new SHED limit for evaporative emissions, updated On-board Fuel Consumption Monitoring provisions, new annexes with requirements relating to in-vehicle battery durability and a new test for range of Pure Electric Vehicles at low temperatures. An informal document amending this proposal is under development.

Proposal to introduce provisions relating to

• Manipulation Devices and Strategies that were previously in the 09 series of amendments to UN R83,
• the levels to which certain provisions apply,
• clarifications and corrections to the requirements for the laboratory test for pure electric range ratio at low temperature for Pure Electric Vehicles
• an update to allow the use in Levels 1A and 2 of actual tyre rolling resistance values to calculate the final road load coefficient for the individual vehicles, and
• align the Regulation with the current regional status and the current state-of-the-art.

Current status of calculation method and component dynamometer tests

Proposal brings clarity to references and to correct copy & paste mistakes and possible misinterpretations related to in-vehicle battery durability and low
temperature.

Proposal clarifies the text relating to On-Board Diagnostics (OBD)

This proposal updates provisions for automated vehicles and automated driving systems.

Proposal for change in transitional provisions to take into considerations of the lifetime value retention status

Proposal clarifies the OBFCM requirements