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Hybrid Diesel-Electric Heavy Duty Bus Emissions: Benefits Of Regeneration And Need For State Of Charge Correction
Technical Paper
2000-01-2955
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Hybrid diesel electric buses offer the advantage of superior fuel economy through use of regenerative braking and lowered transient emissions by reducing the need of the engine to follow load as closely as in a conventional bus. With the support of the Department of Energy (DOE), five Lockheed Martin-Orion hybrid diesel-electric buses were operated on the West Virginia University Transportable Laboratory in Brooklyn, New York. The buses were exercised through a new cycle, termed the Manhattan cycle, that was representative of today's bus use as well as the accepted Central Business District Cycle and New York Bus Cycle. Emissions data were corrected for the state of charge of the batteries. The emissions can be expressed in units of grams/mile, grams/axle hp-hr and grams/gallon fuel. The role of improved fuel economy in reducing oxides of nitrogen relative to conventional automatic buses is evident in the data. Continuous emissions captured from the buses have been compared with the power demand of the bus, and the effects of state of charge correction within the hybrid system are also evident.
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Authors
- Nigel Clark - Department of Mechanical & Aerospace Engineering College of Engineering & Mineral Resources West Virginia Univ.
- Wenwei Xie - Department of Mechanical & Aerospace Engineering College of Engineering & Mineral Resources West Virginia Univ.
- Mridul Gautam - Department of Mechanical & Aerospace Engineering College of Engineering & Mineral Resources West Virginia Univ.
- Donald W. Lyons - Department of Mechanical & Aerospace Engineering College of Engineering & Mineral Resources West Virginia Univ.
- Paul Norton - National Renewable Energy Laboratory
- Thomas Balon - M.J. Bradley & Associates
Topic
Citation
Clark, N., Xie, W., Gautam, M., Lyons, D. et al., "Hybrid Diesel-Electric Heavy Duty Bus Emissions: Benefits Of Regeneration And Need For State Of Charge Correction," SAE Technical Paper 2000-01-2955, 2000, https://doi.org/10.4271/2000-01-2955.Also In
References
- Baker, J.A., “Particulate Matter Regulation and Implications for the Diesel Engine”, SAE Paper 981174.
- Clark, N.N., Prucz, J., Gautam, M. and Lyons, D.W., “Heavy Duty Vehicle Chassis Dynamometer Emissions Data as a Resource for Inventory & Comparative Studies”, SAE paper 2000-01-2854.
- Yanowitz, J., McCormick, R.L. and Graboski, M.S., “In-Use Emissions from Heavy-Duty Diesel Vehicles, Environmental Science & Technology, Vol. 34, pp. 729-740, 2000.
- Clark, N.N., Lyons, D.W., Rapp, B.L, Gautam, M., Wang, W.G., Norton, P., White, C. and Chandler, C., “Emissions from Trucks and Buses Powered by Cummins L-10 Natural Gas Engines”, SAE Spring Fuels and Lubricants Meeting, Dearborn, MI, May 1998, SAE Paper 981393.
- Clark, N.N., Gautam,M., Lyons, D.W., Bata, R.M., Wang, W.G., Norton, P. and Chandler, K., “Natural Gas and Diesel Transit Bus Emissions: Review & Recent Data”, SAE Transactions, Journal of Commercial Vehicles, Vol. 106, Section 2, 1998, pp. 487-496
- Muller, E. and Zillmer, M., “Modeling of Nitric Oxide and Soot Formation in Diesel Engine Combustion”, SAE Paper 982547.
- Akinyemi, O.C. and Cheng, W.K., “A Flame Sheet Model for NO Production in Diesel Combustion Simulation”, SAE Paper 982586
- Abdul-Khalek, I.S., Kittelson, D.B., and Brear, F., “Diesel Trap Performance: Particle Size Measurements and Trends”, SAE Paper 982599
- Letavec, C.A., Segal, J.S., and Uihlein, J.P., “EC-Diesel Technology Validation Program”, SAE Paper 2000-01-1854
- “Hybrid-Electric Drive Heavy-Duty Vehicle Testing Project: Final Emissions Report”, Northeast Advanced Vehicle Consortium/ M.J.Bradley & Assoc./ West Virginia University. Report submitted to DARPA by NAVC (Boston, Mass.), 1999. Available at www.navc.org.
- Clark, N.N., Gautam, M., Bata, R.M., Loth, J., Palmer, G.M., Wang, W.G., and Lyons, D.W., “Design and Operation of a New Transportable Laboratory for Emissions Testing of Heavy Duty Trucks and Buses”, International Jour. of Vehicle Design (Heavy Vehicle Systems), Vol. 2, Nos. 3/4, 1995, pp. 285-299.
- McKain, D.L. and Clark, N.N., “Speed, Torque and Power Regressions for Quality Control of Heavy Duty Vehicle Chassis Dynamometer Research”, SAE Congress, Detroit, March 1999, SAE Paper 1999-01-0614.
- Nine, R.D. and Clark, N.N., “Effects of 19 Driving Test Schedules on NOx Emissions of a 1995 Class 6 Truck with a Mechanically Controlled Engine”, Submitted to SAE Fuels & Lubricants Meeting, Baltimore, Oct. 2000.
- McKain, D.L., Clark, N.N., Balon, T.H., Moynihan, P.J., Lynch, S.A. and Webb, T.C., “Characterization of Emissions from Hybrid and Conventional Transit Buses”, SAE Fuels & Lubricants Meeting, Paris, France, June 2000. SAE Paper 2000-01-201. See also www.navc.org for a full report on hybrid bus emissions.
- “Final Data Report: Dallas Area Rapid Transit (DART) LNG Bus Site”, Battelle (For National Renewable Energy Laboratory), Columbus, Ohio, June 2000.