GAR | GRBP-78-10

Regulation:	UN Regulation No. 131 \| Advanced Emergency Braking Systems
Document:	Revision 1 \| Amendment 3
Corresponds to:	01 series of amendments \| Supplement 3 (Entered into force on 24 Sep 2023)
Based on:	Document WP.29/2023/11 Proposal to increase the potential speed reduction during the collision warning phase and clarify the interpretation of “engine start/run cycle”.

Regulation:	UN Regulation No. 131 \| Advanced Emergency Braking Systems
Document:	Revision 2 \| Amendment 1
Corresponds to:	02 series of amendments \| Supplement 1 (Entered into force on 24 Sep 2023)
Based on:	Document WP.29/2023/12 Proposal to align provisions with corresponding provisions of UN R152 and to clarify the interpretation of the provisions on system robustness when applied to heavy duty vehicles.

Regulation:	UN Regulation No. 137 \| Restraint System in Frontal Impact
Document:	Revision 2
Corresponds to:	01 series of amendments \| Supplement 1 (Entered into force on 29 Dec 2018)
Corresponds to:	01 series of amendments \| Supplement 2 (Entered into force on 28 May 2019)
Corresponds to:	01 series of amendments \| Supplement 3 (Entered into force on 3 Jan 2021)
Corresponds to:	02 series of amendments (Entered into force on 9 Jun 2021)

UN R51: Proposal for a supplement to the 03 series of amendments

Document GRBP-78-10

28 July 2023

78th GRBP session (30 Aug-1 Sep 2023)

This proposal concerns to amendments to Annex 7. The proposed changes regarding sound enhancement systems are based on the 03 series of amendment up to Supplement 9. In addition, some clarifications concerning power definition and temperature correction have been included based on experiences with the last changes of this regulation.

Submitted by OICA

Status: Informal GR review

78th GRBP session (30 Aug-1 Sep 2023)

3. | UN Regulation No. 51 (Noise of M and N categories of vehicles)

9. GRBP was informed that the Task Force on Quiet Road Transport Vehicles (TF QRTV) had identified the need that UN Regulation No. 51 regulate noise emissions of Battery Electric Vehicles (BEVs) with sound enhancement systems other than the Acoustic Vehicle Alerting System (AVAS) of UN Regulation No. 138. The expert from OICA presented a first draft of amendments to UN Regulation No. 51 to address this issue (GRBP-78-10).

10. GRBP expressed concerns about aftermarket products that create artificial noise of BEVs other than for safety purposes, and generally supported the idea to eliminate a “grey area” between UN Regulations Nos. 51 and 138. GRBP noted that OICA would prepare a revised document for BEVs with AVAS.

Reference Number:	ADS-03-03/Rev.1
Meeting Session(s):	3rd ADS session (9-12 Jul)
Document date:	02 Jul 24
Regarding:	Automated Driving

Reference Number:	SIGTP-04-05
Submitted by:	EC
Meeting Session(s):	4th SIGTP session (4 Jul)
Document date:	29 Jul 24
Regarding:	UN R100 Electric Powertrain Vehicles

Reference Number:	SIGTP-04-01
Meeting Session(s):	4th SIGTP session (4 Jul)
Document date:	01 Jul 24
Regarding:	UN R100 Electric Powertrain Vehicles \| GTR No. 20 Electric Vehicle Safety

Reference Number:	SIGTP-04-02/Rev.2
Meeting Session(s):	4th SIGTP session (4 Jul)
Document date:	01 Jul 24
Regarding:	UN R100 Electric Powertrain Vehicles \| GTR No. 20 Electric Vehicle Safety

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