Technical Paper collections have been re-named for better clarity and alignment.x

Your Selections

Brault, Joseph
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Model-Based Approaches in Developing an Advanced Aftertreatment System: An Overview

SAE International Journal of Advances and Current Practices in Mobility

Cummins Inc.-Changsheng Su, Joseph Brault, Achuth Munnannur, Z. Gerald Liu, Sean Milloy, Arvind Harinath, David Dunnuck, Ken Federle
  • Journal Article
  • 2019-01-0026
Published 2019-01-15 by SAE International in United States
Cummins has recently launched next-generation aftertreatment technology, the Single ModuleTM aftertreatment system, for medium-duty and heavy-duty engines used in on-highway and off-highway applications. Besides meeting EPA 2010+ and Euro VI regulations, the Single ModuleTM aftertreatment system offers 60% volume and 40% weight reductions compared to current aftertreatment systems. In this work, we present model-based approaches that were systematically adopted in the design and development of the Cummins Single ModuleTM aftertreatment system. Particularly, a variety of analytical and experimental component-level and system-level validation tools have been used to optimize DOC, DPF, SCR/ASC, as well as the DEF decomposition device. The highlights of this work can be summarized as follows: a). internal dosing is more efficient than external dosing to control HC slip; High CPSI DOCs show better HC oxidation performance at high SV due to enhanced mass transfer; b). the adopted advanced DPF technologies enable greater ash capacity for long maintenance intervals; c). SCR performance was optimized with the use of a hydrothermally robust Cu-Zeolite catalyst coated on high CPSI substrates.
This content contains downloadable datasets
Annotation ability available