| NEW OPTIMAL POWER MANAGEMENT STRATEGY FOR SERIES
PLUG-IN HYBRID ELECTRIC VEHICLES |
| Erfan Taherzadeh1, Shahram Javadi1, Morteza Dabbaghjamanesh2 |
1Islamic Azad University
2Louisiana State University |
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| ABSTRACT |
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Recently Plug-in hybrid electric vehicles (PHEVs) have gained increasing attention due to their ability to
reduce the fuel consumption and emissions. In this paper a new efficient power management strategy is proposed for a series
PHEV. According to the battery state of charge (SOC) and vehicle power requirement, a new rule-based optimal power
controller with four different operating modes is designed to improve the fuel economy of the vehicle. Furthermore, the
teaching-learning based optimization (TLBO) method is employed to find the optimal engine power and battery power under
the specified driving cycle while the fuel consumption is considered as the fitness function. In order to demonstrate the
effectiveness of the proposed method, four different driving cycles with various numbers of driving distances for each driving
cycle are selected for the simulation study. The performance of the proposed optimal power management strategy is compared
with the rule-based power management method. The results verify that the proposed power management method could
significantly improve the fuel economy of the series PHEV for different driving conditions. |
| Key Words:
Fuel economy, Optimization, Power management strategy, Plug-in Hybrid Electric Vehicle (PHEV),
Teaching-Learning Based Optimization (TLBO) |
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Corresponding Author.
Shahram Javadi , Email. 
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