Proposal for a “Stage 3” mandate to further develop vehicle interior air quality measures.

Proposal from the Particle Measurement Programme informal group to:

• Modify the existing solid PN measurement methodology having a 50% cut-off size at 23 nm (SPN23) in order to allow the use of catalyzed volatile particle remover (VPR) and introduce minor improvements, and
• Include as a second option a solid PN measurement methodology with a 65% cut-off size at 10 nm (SPN10).

The first part of the PMP Brake Protocol for measuring brake particle emissions and addresses items using a new WLTP-Brake Cycle in conjunction with an inertia dynamometer test. The PMP Brake protocol will include three sections aiming to provide a comprehensive protocol for testing facilities:

• Inertia Dynamometer Protocol to Measure and Characterise Brake Emissions Using the WLTP-Brake Cycle;
• Part 2: Minimum Requirements and Guidelines for Sampling and Measurement of Brake Emissions for Particle Number and Particle Mass;
• Part 3: Reporting Test Results from Brake Emissions Testing.

Proposal to update the PMP mandate with a view to delivering the following results:

• Proposal for a new methodology for exhaust PN measurement with a d50 cut-off size reduced to 10 nm: June 2020
• Proposal for HD raw exhaust PN sampling and extension of sub-23 nm procedure to HD engines: January 2021
• Proposal for LD PN-PEMS 10 nm specifications : June 2021 (tbc)
• Proposal for a common test procedure for the measurement of particle brake emissions from conventional ICE LDVs: December 2021.

Document also available in PDF and word versions with track changes
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-14e_track.pdf
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-14e_track.docx

Document also available in PDF and word versions with track changes
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-16e_track.pdf
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-16e_track.docx

Provisions to define a reference value for particle number

Defines a reference value for particle number measurement.

Document also available in PDF and word versions with track changes
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-24r2e_track.pdf
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-24r2e_track.docx

List of proposed amendments for a new UN GTR on the determination of system power of hybrid electric vehicles and of pure electric vehicles
Document also available in PDF and word versions with track changes
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-27e_track.pdf
http://www.unece.org/fileadmin/DAM/trans/doc/2020/wp29grpe/GRPE-81-27e_track.docx

UNR WLTP having features that have not been seen before in Regulations of the 1958 Agreement and GRPE therefore decided to commission this document to assist all users of this Regulation in their understanding. UNR WLTP will have 3 Levels. There are two regional Levels (contained within Level 1), and one harmonised Level (Level 2). The regional Levels reflect the current (at the time of adoption) emissions legislation in the EU (Level 1A) and in Japan (Level 1B). The harmonised level is the only level which will be accepted as part of an approval to Regulation 0 (International Whole Vehicle Type Approval – IWVTA)

Secretary guidance as to how clarification documents can be referenced in WP29