SAE 2014 Light Duty Emissions Control Symposium

Technical Session Schedule

Tuesday, December 9

Engine/Powertrain Developments
(Session Code: LDD100)

Room Salon ABCD  8:30 a.m.

Time Paper No. Title
8:30 a.m. ORAL ONLY
Perspectives on Worldwide Light-Duty Regulations and Technical Approaches for Attainment
John German, International Council On Clean Transport
9:00 a.m. ORAL ONLY
Advanced Combustion Strategies and Emission Control System Design
Recent legislation has been enacted requiring unprecedented reductions in greenhouse gas emissions, and thus improved fuel efficiency, from internal combustion engines. The aggressive rate of improvement in fuel consumption mandated by this legislation has resulted in the proposal of more exotic combustion strategies than have previously been considered for serial production. The new combustion strategies that are being considered for near term applications can result in substantially different operating environments and thus the required performance of the emission control system. To deliver the most efficient engine system for each application, the impact of the combustion strategy on emission control system requirements must be taken into account when selecting the combustion strategy for production to ensure the benefits of the combustion strategy are not offset by penalties associated with treating exhaust emissions. This discussion will present data on the impact of novel combustion strategies on the operating environment for the emissions control system.
Cary Henry, Southwest Research Institute
9:25 a.m. ORAL ONLY
Low Carbon, Low Emissions Diesel Technology
In light of the existing and future vehicle fuel economy targets along with the challenge of future emissions legislation, significant potential has been shown for gasoline engine efficiency improvements. Similarly, many manufacturers have presented hybrid, range extended or electric vehicles. As such, the question arises: what place does the Diesel engine have in the future passenger car product portfolio and what is the most appropriate technology including electrification?
Dave Rodgers, Ricardo Inc.
9:50 a.m. ORAL ONLY
Opportunities and Challenges Associated with Multi-mode Diesel/ RCCI Combustion: An Aftertreatment Perspective
In-cylinder blending of gasoline and diesel to achieve reactivity controlled compression ignition (RCCI) has been shown to reduce NOX and particulate matter emissions while maintaining or improving brake thermal efficiency as compared to conventional diesel combustion. While RCCI operation has been shown to produce significant reductions in NOx and soot emissions, unburned hydrocarbons and CO emissions tend to increase compared to diesel combustion. This presentation discusses the current research into exhaust aftertreatment opportunities and challenges of proposed multi-mode diesel/RCCI operation where an engine would switch to diesel operation in areas outside the RCCI operating window.
Scott Curran, Oak Ridge National Laboratory
10:15 a.m. Panel
Panel Discussion