SAE 2014 High Efficiency IC Engine Symposium

Technical Session Schedule

Sunday, April 6

Future Directions and Regulations/Natural Gas Technology
(Session Code: HEE1)

Room Woodward B, C, & D  1:00 p.m.

Time Paper No. Title
1:00 p.m. ORAL ONLY
Future Directions and Regulations Moderator
Moderators - Zoran S. Filipi, Clemson-ICAR
Zoran S. Filipi, Clemson-ICAR
1:10 p.m. ORAL ONLY
IC Engine Improvements for Future LD & HD GHG Standards
Efficiency improvements to both gasoline and diesel engines are expected to be major elements in manufacturers' strategies to comply with the U.S. light- and heavy-duty GHG emission standards. Optimization of the engine’s high efficiency operating region, while considering the overall vehicle system, offers vehicle efficiency improvements during typical operation that can be more impactful than focusing only on improving the peak efficiency of the engine. Technology improvements in other vehicle systems influence the optimization of IC engines, and the new engine efficiency maps can be used to leverage other vehicle improvements – from advanced 8-9 speed transmissions and hybrid drivetrains, to reductions in the cruising engine load requirements and improvements in the PM, NOx, and TWC aftertreatment effectiveness.
David Haugen, US Environmental Protection Agency
1:50 p.m. ORAL ONLY
CO2 and GHG Reduction
Timothy Johnson, Corning Inc.
2:30 p.m. ORAL ONLY
Efficiency Improvement of Natural Gas Engines by Applying Advanced Engine Control
Per Tunestal, Lund University
3:10 p.m.
3:40 p.m. ORAL ONLY
Future Direction for HE Engine Research on NG Engines
A combination of customer demand and government regulations has resulted in the requirement to simultaneously reduce emissions and improve efficiency. SwRI has converted a lean-burn CNG engine to a low-emissions, high-efficiency engine using LPL EGR and a three-way catalyst. The targets for the program were to increase torque and power over the lean burn option while achieving ultra-low NOx emissions. The addition of LPL EGR also resulted in a significant improvement in efficiency over the lean-burn baseline.
Terrence Alger, Southwest Research Institute
4:20 p.m. ORAL ONLY
Boosting Systems for High Efficiency Engines and Their Impact on Engine Efficinecy
Advances in combustion technology have led to a proliferation of high efficiency engine concepts that use significant levels of dilution to improve the indicated efficiency of the engine. The combination of high dilution for efficiency and high torque for performance places significant stress on the boosting systems of the engine. This presentation will discuss the source of the challenges and the impact boosting system efficiency has on efficiency when operating in an advanced mode as well as give a real-world example of designing a boosting system for SwRI's advanced combustion system - D-EGR - in a late model sedan
Christopher J. Chadwell, Southwest Research Institute