开发测量制动磨损颗粒物排放的系统.pdf

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1、Louisa Kramer,Jon Andersson,Michael Campbell,Ian Marshall,John Norris,Simon de Vries,Gary Waite,Jason Southgate and John Norris(Ricardo),Arup AECOM consortium,UK Department for Transport(DfT)Development of a system to measure real world particle emissions from brake wear2 Ricardo plc14-15 March 2024

2、13th Annual International OSAR ConferenceNon Exhaust Emissions(NEE)Introduction3 Ricardo plc14-15 March 202413th Annual International OSAR ConferenceInternational work on regulation UNECE is developing internationally recognised test procedures to measure brake and tyre particles Measuring tyre and

3、road wear particles is technically very complex As of February 2024,UNECEs World Forum for Harmonization of Vehicle Regulations have endorsed two methodologies for measuring tyre abrasion(UN Regulation No.1172345).Work on measuring brake wear is more advanced Global Technical Regulation(GTR 24)“Labo

4、ratory measurements of Brake Emissions for Light Duty Vehicles”was published in 2023.EU has proposed limits on car(M1/N1)brake emissions within Euro 7,with initial limits set,during brake dynamometer testing,at 7 mg/km with 50%higher limits for LCV.Proposal for this limit to drop to 3 mg/km in 2035I

5、ntroduction4 Ricardo plc14-15 March 202413th Annual International OSAR ConferenceMeasurement of Brake Wear Ricardo are supporting the Department for Transport in the UK to develop an effective system and methodology for measuring and characterising particles emitted from brake and tyre wear under re

6、al driving conditions Primary aim is to develop emissions factors In developing the system there was a need to consider:A common sampling system and measurement equipment which can be used for both brake and tyre wear Representative sample collection of particles Repeatable and reproducible measurem