Estimation of DPF Soot Loading through Steady-State Engine Mapping and Simulation for Automotive Diesel Engines Running on Petroleum-Based Fuels General Motors Global Propulsion Systems

Format:

Conference/Event

Author/Creator:

Barba, Barba, author.

Contributor:

Greco, Vincenzo

Vassallo, Alberto

Conference Name:

13th International Conference on Engines & Vehicles (2017-09-10 : Capri, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractThe aim of the present study is to improve the effectiveness of automotive diesel engine and aftertreatment calibration process through the critical evaluation of several methodologies to estimate the soot mass flow produced by diesel engines fueled by petroleum fuels and filtered by Diesel Particulate Filters (DPF). In particular, its focus has been the development of a reliable simulation method for the accurate prediction of the engine-out soot mass flow starting from Filter Smoke Number (FSN) measurements executed in steady state conditions, in order to predict the DPF loading considering different engine working conditions corresponding to NEDC and WLTP cycles.In order to achieve this goal, the study was split into two main parts:Therefore, by linking the steady-state FSN measurements to MSS instantaneous readings, and in turn, the MSS cumulative reading to soot filter weighting, the study helped to contribute a simulation method which bridges the gap between the commonly available FSN readings and the reference technique used in the literature, the soot filter weighting, which for several reasons may not be easily available during the engine development process.Furthermore, the performed test activities lead the Authors to a few best practices for the soot measurement in both steady-state and transient conditions, including sampling probes installation. They allow to measure repeatable data during the test activities and avoid inconsistencies during the engine development

Notes:

Vendor supplied data

Publisher Number:

2017-24-0139

Access Restriction:

Restricted for use by site license