SAE 2014 Light Duty Emissions Control Symposium

Technical Session Schedule

Wednesday, December 10

Sensors, Modeling, Control
(Session Code: LDD600)

Room TBD  1:00 p.m.

Time Paper No. Title
1:00 p.m. ORAL ONLY
Particle Sensors
Imad A. Khalek, Southwest Research Institute
1:25 p.m. ORAL ONLY
A Review of Current ODB Methods for Gasoline and Diesel Cars, Approaches for Fuel Systems, and Unmet Needs
John Van Gilder, General Motors Co.
1:50 p.m. ORAL ONLY
Urea-SCR Injection: Meeting the Cold Start NOx Emissions Challenge
New rounds of stringent nitrogen oxides (NOx) emissions reduction regulations in Europe (Euro 6c) and North America (CARB LEV III, EPA Tier 3) are driving the optimization of existing diesel exhaust aftertreatment systems. Urea - Selective Catalytic Reduction (SCR) systems are among the de-NOx technologies that have been successfully introduced in recent years.

The new regulations are bringing a closer look to SCR de-NOx performance particularly during the cold start phase of the existing emissions certification cycles. This presentation will review some of the options under consideration to address cold start NOx emissions. Some of these approaches impose new and more severe requirements on the urea injection function – these are also reviewed as well as the response to these requirements by the injection system designers.
W. Nic Van Vuuren, Continental Automotive Systems