Fast Emissions Analyzers for In-Vehicle and Roadside Measurements Cambustion Limited

Format:

Book

Conference/Event

Author/Creator:

Parnell, Jamie, author.

Conference Name:

15th International Conference on Engines & Vehicles (2021-09-12 : Capri, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The use of fast response emissions analyzers to correlate spikes of emissions with engine parameters such as lambda and EGR is well known for engine test cell and chassis dynamometer work. However, the adaption of these analyzers for in-vehicle use allows engineers to identify real world situations where significant tailpipe emissions occur over short durations which may not be visible with standard PEMS equipment and to correlate these events with other engine parameters. Through such identification, engine calibrators can adjust ECU parameters enabling such transient emissions problems to be cured. Accurate and adequate urea dosing and EGR transients are of particular interest in diesel vehicles.The transient emissions from passing (or "chased") vehicles has also been studied following a sensitivity enhancement to the fast CLD, enabling high quality roadside measurements at positions where transients frequently occur (e.g. traffic lights)

Notes:

Vendor supplied data

Publisher Number:

2021-24-0084

Access Restriction:

Restricted for use by site license