Modelling of transient influences on HDV Emissions Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Inffeldgasse 25B, 8010 Graz, AustriaNetherlands Organization for Applied Research (TNO), Schoemakerstraat 97, 2600 JA Delft, Netherlands

Format:

Conference/Event

Author/Creator:

Hausberger, S. Ivanisin, author.

Conference Name:

2001 Internal Combustion Engines (2001-09-23 : Capri - Naples, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Naples, ITALY Consiglio Nazionale delle Ricerche 2001

Summary:

As passenger car exhaust emissions are becoming less pollutant, the share of Heavy Duty vehicle (HDV) emissions to the overall air pollution (local and regional) is increasing, especially for NOx and particles. However, adequate methodologies to model the emissions of a HDV in real world conditions do not yet exist. The main problems for generating accurate emission factors for HDV areFor these reasons the EU-projects ARTEMIS (Work Package 400) and COST 346 have been started at the beginning of 2000. Both projects have the objective to develop a commonly agreed European model for generating transient HDV emission factors.The ARTEMIS model will be based on a broad database of steady-state emission maps, as well as a set of correction functions to account for the transient conditions in real world driving conditions. The actual power demand and speed of the engine are calculated on a second-per-second basis from the driving resistances and a driver/gear-shift model for any given vehicle driving cycle. This results in so-called quasi-stationary emissions', that are obtained by interpolation from the stationary emission maps. The correction functions translate these into transient emissions. Since the difference between transient and stationary emissions can be quite substantial, the elaboration of these correction functions is an important and challenging task of the projects.The paper presents two different approaches for the simulation of HDV emissions under transient conditions, and compares the model results with measurements on both the engine test bed and a HDV chassis dynamometer

Notes:

Vendor supplied data

Publisher Number:

2001-24-0076

Access Restriction:

Restricted for use by site license