Measurement of Particle Dynamics on the Real Vehicle in Different Driving Scenarios with Swarm Sensors TU Braunschweig

Format:

Book

Conference/Event

Author/Creator:

Ostermeyer, Georg-Peter, author.

Contributor:

Lehne-Wandrey, Guido

Sandgaard, Malte

Conference Name:

Brake Colloquium & Exhibition - 39th Annual (2021-10-17 : Orlando & Online, Florida, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Due to the increase in public attention in the analysis of non-exhaust emission sources because of the growing electrification of vehicles, measurements have been performed in recent years to develop a consistent test standard. In particular, the consideration of tyre and brake abrasion took a predominant position due to the small particle sizes. With measurements under controlled and laboratory-like athmosphere, for example for brakes on dynamometers, attempts have been made to create a uniform test standard according to the Worldwide harmonized Light vehicles Test Procedure (WLTP). However, a transfer to the real driving environment is not yet feasible because of many external disturbance variables, such as the wheel housing or atmospheric variables. Typical reference measurement sensors in the vehicle are only suitable to a limited extent for mobile operation due to their size and the necessary measurement infrastructure.The aim of this work is to analyse swarm measurements on a real test environment in combination with individual vehicles and driving scenarios with regard to the spatial and temporal dynamics. The particle concentration is measured at variable heights and horizontally distributed. The realisation of different driving scenarios, such as braking, passing and starting vehicles, should give an overview of the particle concentration of a vehicle. Using individual exhaust tests, this work showed how high the proportion of exhaust emissions is in comparison to the measured non-exhaust emissions. By recurring measurements on different days, a statement about the influence of the prevailing weather on the emission cloud dynamics and the background emission level is shown. In addition, the influence on the emission behaviour due to the use of different vehicles and vehicle classes is investigated

Notes:

Vendor supplied data

Publisher Number:

2021-01-1299

Access Restriction:

Restricted for use by site license