Evaluation of regenerative braking effect for E-REV bus according to characteristic of driving cycle

The extended-range electric vehicle (E-REV) is an electric vehicle concept that has a light engine to allow an extended driving range. One of the most important features of these vehicles, based on electricity, is their ability to recover significant amounts of braking energy in a process known as r...

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Bibliographic Details
Published in:International journal of precision engineering and manufacturing-green technology 2015-04, Vol.2 (2), p.149-155
Main Authors: Choi, Jongdai, Jeong, Jongryeol, Park, Yeong-il, Cha, Suk Won
Format: Article
Language:English
Subjects:
Automobile industry
Computer simulation
Constraint modelling
Economic conditions
Economics
Electric power distribution
Electric vehicles
Energy efficiency
Fuel consumption
Fuel economy
Product design
Regenerative braking
Torque
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Summary:The extended-range electric vehicle (E-REV) is an electric vehicle concept that has a light engine to allow an extended driving range. One of the most important features of these vehicles, based on electricity, is their ability to recover significant amounts of braking energy in a process known as regenerative braking. The more driving motor operates widely as generator, the more braking energy can be absorbed. However, it is not realistic in terms of performance for components. This study proposes three regenerative braking torque maps as the constraints to consider their performance. The results of fuel economy for simulations while applying proposed torque maps are compared with those of simulations without any constraints to evaluate effect of regenerative braking for E-REV bus according to characteristic of driving cycle. The characteristics of driving cycles are analyzed to find relationship between driving cycle and fuel economy. The aggressiveness of the driving cycles shows a linear relationship with regard to the difference in the fuel economy. This result can be used to develop power distribution control strategies with regenerative braking models to improve fuel economy levels.
ISSN:2288-6206
2198-0810
DOI:10.1007/s40684-015-0019-6