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http://dx.doi.org/10.5762/KAIS.2016.17.8.582

Components sizing of powertrain for a Parallel Hybridization of the Mid-size Low-Floor Buses  

Kim, Gisu (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Park, Yeong-il (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Ro, Yun-sik (Jeonbuk Institute of Automotive Technology)
Jung, Jae-wook (Jeonbuk Institute of Automotive Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.8, 2016 , pp. 582-594 More about this Journal
Abstract
Most studies on hybrid buses are on large-sized buses and not mid-sized low-floor buses. This study uses MATLAB simulation to evaluate the fuel efficiency of such buses powered by diesel. Based on the results, a hybrid electric vehicle system is recommended for the best combination of power and gear ratio. A parallel hybrid system was selected for the hybridization, which transmits front and rear wheel power independently. The necessary power to satisfy the target performance was calculated, and the applicable capacity area was designed. Dynamic programing was used to create and optimize a component sizing algorithm, which was used to scale the capacity of each component of the power source to satisfy the design criteria. The fuel efficiency rate, optimum power source capacity, and gear ratio can be improved by converting a conventional bus into a parallel hybrid bus.
Keywords
Backward simulation; Component sizing; Dynamic programming; Fuel economy; Hybrid electric vehicle; Mid-size low-floor bus; Optimization; Parallel hybrid system;
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Times Cited By KSCI : 6  (Citation Analysis)
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