Heavy Vehicle Auxiliary Load Electrification for the Essential Power System Program: Benefits, Tradeoffs, and Remaining Challenges 2002-01-3135
Intelligent management of vehicle auxiliary power can reduce fuel consumed by Class 8 tractor-trailers. Through the U.S. Department of Energy's Essential Power System (EPS) Program, the National Renewable Energy Laboratory is investigating electrification of major mechanically driven auxiliary loads in heavy vehicles. This paper describes the benefits and tradeoffs of a managed EPS and quantifies the potential energy savings of component electrification. Simulations predict that maximum fuel economy increases of 9%-15% (urban drive cycle) and 5%-8% (constant 65 mph) are possible. Future EPS work will require a systems approach with a better understanding of duty cycles and auxiliary needs.
Citation: Hendricks, T. and O'Keefe, M., "Heavy Vehicle Auxiliary Load Electrification for the Essential Power System Program: Benefits, Tradeoffs, and Remaining Challenges," SAE Technical Paper 2002-01-3135, 2002, https://doi.org/10.4271/2002-01-3135. Download Citation
Terry Hendricks, Michael O'Keefe
National Renewable Energy Laboratory
International Truck & Bus Meeting & Exhibition
SAE 2002 Transactions Journal of Commercial Vehicles-V111-2