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A “Mini-Hybrid” Transit Bus with Electrified Cooling System
Technical Paper
2006-01-3475
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A Diesel engine-powered transit bus was fitted with a powertrain thermal management system comprised of electrified components, including fans, coolant pump, and electronic thermostat. A high output belt-driven 24 volt DC alternator was installed to provide power for this system in addition to the normal bus electrical power loads. Except for the alternator, all components were mounted on a slide-mounted tray to facilitate service and maintenance.
In practice, this “mini-hybrid” vehicle has demonstrated a fuel economy improvement of 10.5% in fleet operation during a four month period and is expected to achieve 5-7% better fuel economy annually, compared to a conventional bus. Additional benefits include lower maintenance costs, improved safety, and enhanced serviceability.
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Citation
Page, R., Bedogne, R., Steinmetz, T., and Bryant, A., "A “Mini-Hybrid” Transit Bus with Electrified Cooling System," SAE Technical Paper 2006-01-3475, 2006, https://doi.org/10.4271/2006-01-3475.Also In
References
- Transportation Research Board “Hybrid Electric Transit Buses: Status, Issues, and Benefits” TCRP Report #59 2000
- United States Department of Transportation, Bureau of Transportation Statistics “Survey of State Funding for Public Transportation - 2003”
- Private communication with TriMet
- Transportation Research Board “Guidebook Evaluating, Selecting, and Implementing Fuel Choices for Transit Bus Operations” TCRP Report #38 1998
- American Public Transportation Association “2004 Public Transportation Factbook”
- Hnatczuk, W. Lasecki, M.P. Bishop, J. Goodell, J. “Parasitic Loss Reduction for 21 st Century Trucks” SAE 2000-01-3423 2000
- American Public Transportation Association www.apta.com
- Transit Cooperative Research Program