Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus
Abstract
Due to Internal Combustion Engines’ (ICE) significant share in global energy demand, primarily through the transportation sector, great efforts are invested in research for solutions that will increase the fuel economy of ICE-powered vehicles. The main objective of the study presented in this paper has been to perform a comparative study of a conventional and a parallel hybrid electric transit bus employing an ultracapacitors-based energy accumulator. A high-fidelity simulation model of the vehicle has been designed in the AMESim multi-domain system analysis software. The conventional powertrain model has been calibrated using data obtained during an acquisition experiment conducted in realworld traffic conditions on a transit bus. This data also served as the basis for defining the driving cycle on which the numerical analyses will be conducted. A simple, sub-optimal control law has been implemented in the hybrid powertrain simulation model. Also, an advanced energy management law bas...ed on Dynamic Programming has been derived to assess the ultimate fuel economy improvement potential of the hybrid solution and to make design decisions. Initial study shows that considerable fuel consumption reduction in excess of 30% could be achieved by implementing a regenerative hybrid system employing an ultracapacitor-based accumulator.
Keywords:
Simulation / Transit Bus / Ultracapacitors / Dynamic Programming / Internal Combustion EnginesSource:
Mobility & Vehicle Mechanics, 2014, 40, 3, 71-84Publisher:
- University of Kragujevac, Faculty of Engineering
Funding / projects:
- Research and development of alternative fuel and drive systems for urban buses and refuse vehicles with regard to the improvements of energy efficiency and environmental characteristics (RS-MESTD-Technological Development (TD or TR)-35042)
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Institution/Community
Mašinski fakultetTY - JOUR AU - Kitanović, Marko AU - Mrđa, Predrag D. AU - Popović, Slobodan AU - Miljić, Nenad PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4755 AB - Due to Internal Combustion Engines’ (ICE) significant share in global energy demand, primarily through the transportation sector, great efforts are invested in research for solutions that will increase the fuel economy of ICE-powered vehicles. The main objective of the study presented in this paper has been to perform a comparative study of a conventional and a parallel hybrid electric transit bus employing an ultracapacitors-based energy accumulator. A high-fidelity simulation model of the vehicle has been designed in the AMESim multi-domain system analysis software. The conventional powertrain model has been calibrated using data obtained during an acquisition experiment conducted in realworld traffic conditions on a transit bus. This data also served as the basis for defining the driving cycle on which the numerical analyses will be conducted. A simple, sub-optimal control law has been implemented in the hybrid powertrain simulation model. Also, an advanced energy management law based on Dynamic Programming has been derived to assess the ultimate fuel economy improvement potential of the hybrid solution and to make design decisions. Initial study shows that considerable fuel consumption reduction in excess of 30% could be achieved by implementing a regenerative hybrid system employing an ultracapacitor-based accumulator. PB - University of Kragujevac, Faculty of Engineering T2 - Mobility & Vehicle Mechanics T1 - Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus EP - 84 IS - 3 SP - 71 VL - 40 UR - https://hdl.handle.net/21.15107/rcub_machinery_4755 ER -
@article{ author = "Kitanović, Marko and Mrđa, Predrag D. and Popović, Slobodan and Miljić, Nenad", year = "2014", abstract = "Due to Internal Combustion Engines’ (ICE) significant share in global energy demand, primarily through the transportation sector, great efforts are invested in research for solutions that will increase the fuel economy of ICE-powered vehicles. The main objective of the study presented in this paper has been to perform a comparative study of a conventional and a parallel hybrid electric transit bus employing an ultracapacitors-based energy accumulator. A high-fidelity simulation model of the vehicle has been designed in the AMESim multi-domain system analysis software. The conventional powertrain model has been calibrated using data obtained during an acquisition experiment conducted in realworld traffic conditions on a transit bus. This data also served as the basis for defining the driving cycle on which the numerical analyses will be conducted. A simple, sub-optimal control law has been implemented in the hybrid powertrain simulation model. Also, an advanced energy management law based on Dynamic Programming has been derived to assess the ultimate fuel economy improvement potential of the hybrid solution and to make design decisions. Initial study shows that considerable fuel consumption reduction in excess of 30% could be achieved by implementing a regenerative hybrid system employing an ultracapacitor-based accumulator.", publisher = "University of Kragujevac, Faculty of Engineering", journal = "Mobility & Vehicle Mechanics", title = "Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus", pages = "84-71", number = "3", volume = "40", url = "https://hdl.handle.net/21.15107/rcub_machinery_4755" }
Kitanović, M., Mrđa, P. D., Popović, S.,& Miljić, N.. (2014). Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus. in Mobility & Vehicle Mechanics University of Kragujevac, Faculty of Engineering., 40(3), 71-84. https://hdl.handle.net/21.15107/rcub_machinery_4755
Kitanović M, Mrđa PD, Popović S, Miljić N. Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus. in Mobility & Vehicle Mechanics. 2014;40(3):71-84. https://hdl.handle.net/21.15107/rcub_machinery_4755 .
Kitanović, Marko, Mrđa, Predrag D., Popović, Slobodan, Miljić, Nenad, "Fuel Economy Comparative Analysis of Conventional and Ultracapacitors-Based, Parallel Hybrid Electric Powertrains for a Transit Bus" in Mobility & Vehicle Mechanics, 40, no. 3 (2014):71-84, https://hdl.handle.net/21.15107/rcub_machinery_4755 .