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Modeling and Validation of an Over-the-Road Truck
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 05, 2010 by SAE International in United States
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Heavy-duty trucks are an important sector to evaluate when seeking fuel consumption savings and emissions reductions. With fuel costs on the rise and emissions regulations becoming stringent, vehicle manufacturers find themselves spending large amounts of capital improving their products in order to be compliant with regulations. The Powertrain System Analysis Toolkits (PSAT), developed by the Argonne National Laboratory (ANL), is a simulation tool that helps mitigate costs associated with research and automotive system design. While PSAT has been widely used to predict the fuel consumption and exhaust emissions of conventional and hybrid light-duty vehicles, it also may be employed to test heavy-duty vehicles. The intent of this study was to develop an accurate model that predicts emissions and fuel economy for heavy-duty vehicles for use within PSAT. The model developed in cooperation with ANL during this research, has been integrated into the PSAT model for its application to heavy-duty trucks. The truck modeled was a Peterbilt tractor truck with a 410 kW Caterpillar 3406 non-EGR engine. This is a conventional over-the-road truck for which test data sets are available. It is equipped with an 18-speed Roadranger manual transmission and a tandem axle drive. The vehicle model configuration and development process were described, along with the model validation processes. For the engine model, a NOx (Oxides of Nitrogen) emissions model and a fuel rate map for the Caterpillar 3406 engine was created based on the test data. For the gearbox model, the shifting strategy was elaborated and the transmission efficiency lookup tables were developed. In this paper, a power loss of mechanical accessory was considered as variable other than constant value and an approach to estimate fan power demand was implemented. The difference between tested data and PSAT simulated data pertaining to engine fuel rate, engine torque, engine speed, engine power and NOx was within 5% relative error.
CitationWang, L., Clark, N., and Chen, P., "Modeling and Validation of an Over-the-Road Truck," SAE Technical Paper 2010-01-2001, 2010, https://doi.org/10.4271/2010-01-2001.
- “Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards,” Federal Register, Vol. 75, No. 88, Rules and Regulations, May 2010.
- Kobayashi, S., Plotkin, S. and Ribeiro, S.K., “Energy Efficiency Technologies for Road Vehicles,” Energy Efficiency, Springer Netherlands, ISSN 1570-646X, Published January 2009.
- Krishnan, R. and Tarabulski, T.J., “Economics of Emission Reduction for Heavy-Duty Trucks,” DieselNet Technical Report, January 2005.
- Fuel Economy Inc., “Advanced Technology and Energy Efficiency,” Available Online, http://www.fuel economy.gov/feg/atv.shtml.
- Slone, L.M., Birkel, J.F., Maronde, C. and Slezak, L., “Truck Essential Power Systems Efficiency Improvements for Medium Duty Trucks,” HVSO Review Meeting, April 2006.
- Clark, N.N., Tehranian, A., Jarrett, R.P., and Nine, R.D., “Translation of Distance-Specific Emissions Rates between Different Heavy Duty Vehicle Chassis Test Schedules, SAE Technical Paper 2002-01-1754, 2002, doi:.10.4271/2002-01-1754.
- The MathworksTM, “Argonne National Laboratory Develops Powertrain System Analysis Toolkit with MathWorksTM Tools,” 91552v00, March 2008.
- Larsen, R., Duoba, M., McBroom, S., Nedungadi, A. and Wipke, K., “Modeling Future Automobiles: the Role of Industry and Government,” COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, pp: 1036-1044, ISSN: 0332-1649.
- ECOCAR & Vehicle Technologies Program, “PSAT Accurately Simulates Advanced Vehicles,” January 2006.
- Rousseau, A., Kwon, J., Sharer, P., Pagerit, S. et al., “Integrating Data, Performing Quality Assurance, and Validating the Vehicle Model for the 2004 Prius Using PSAT,” SAE Technical Paper 2006-01-0667, 2006, doi:.10.4271/2006-01-0667.
- Argonne National Laboratory, “Powertrain System Analysis Toolkit (PSAT)-A Flexible, Reusable Model for Simulating Advanced Vehicles,” Available Online, http://www.transportation.anl.gov/pdfs/MC/338.pdf.
- Rousseau, A., Sharer, P., and Besnier, F., “Feasibility of Reusable Vehicle Modeling: Application to Hybrid Vehicles,” SAE Technical Paper 2004-01-1618, 2004, doi:.10.4271/2004-01-1618.
- Baglione, M.L., “Development of System Analysis Methodologies and Tools for Modeling and Optimizing Vehicle System Efficiency,” Thesis of Doctor of Philosophy, University of Michigan, 2007.
- Maxoulis, C.N., Tsinoglou, D.N. and Koltsakis, G.C., “Modeling of Automotive Fuel Cell Operation in Driving Cycles,” Energy Conversion and Management, Volume 45, Issue 4, March 2004, Pages 559-573.
- PSAT Documentary, Book 2-Components, Packaged with PSAT Software.
- Ramamurthy, R., Clark, N.N., Atkinson, C.M., and Lyons, D.W., “Models for Predicting Transient Heavy Duty Vehicle Emission,” SAE Technical Paper 982652, 1998, doi:.10.4271/982652.
- Clark, N.N., Bedick, C.R., Wang, L., Thompson, G. et al., “Emissions from a Legacy Diesel Engine Exercised through the ACES Engine Test Schedule,” SAE Technical Paper 2008-01-1679, 2008, doi:.10.4271/2008-01-1679.
- Eaton Fuller Transmission Manual, September 2007, Available Online, http://www.roadranger.com/Roadranger/productssolutions/transmissions/low-inertiasuper18/index.htm.
- Personal Communication, Eaton Corp., July 2008.
- van Dongen, L.A.M., “Efficiency Characteristics of Manual and Automatic Passenger Car Transaxles,” SAE Technical Paper 820741, 1982, doi:.10.4271/820741.
- Heingartner, P. and Mba, D., “Determining the Power Losses in the Helical Gear Mesh,” a case study, Gear Technology, September/October 2005.
- Provided by the Application Engineer of Peterbilt Truck Company.
- Nunney, M.J., “Light and Heavy Vehicle Technology, Fourth Edition,” ISBN 13: 9780750680370 - ISBN-10: 0750680377, Published November 2006.
- Arici, O., Johnson, J.H., and Kulkarni, A.J., “The Vehicle Engine Cooling System Simulation Part 1 -Model Development,” SAE Technical Paper 1999-01-0240, 1999, doi:.10.4271/1999-01-0240.
- Hawkins, J.S., Avery, R.M. and Super, L., “Method of Estimating Engine Cooling Fan Power Losses,” US Patent 6904352, June 2005.
- Personal Communication, Caterpillar Inc., January 2010.
- Personal Communication, WVU Transportable Heavy-Duty Laboratory, January 2008.