Title :
Optimization and simulation of energy management strategy for a parallel-series HEV
Author :
Wei, Wang ; Xinhui, Liu
Author_Institution :
Inst. of Mech. Sci. & Eng., Jilin Univ., Changchun, China
Abstract :
The driving modes of a parallel-series hybrid electric vehicle (HEV) were analyzed. The system efficiency models for the HEV at the charging and discharging mode were proposed based upon the engine efficiency map, motor/generator efficiency map and battery efficiency map. The optimization of energy management strategy for the hybrid system was studied, whose optimization target is the maximum of discharging efficiency at the discharging mode, and the maximum of charging efficiency, the maximum of charging efficiency and charging power at the charging mode with the different state of charge of battery, and the optimal control torque and speed for engine, motor and generator were obtained under the different driving conditions. The simulation of fuel economy shows that the decreasing ratio of fuel consumption of the hybrid system reaches 33.74%.
Keywords :
energy management systems; fuel economy; hybrid electric vehicles; optimal control; optimisation; battery charge; discharging mode; driving modes; energy management strategy; engine efficiency map; fuel consumption; fuel economy; optimal control torque; optimization; parallel-series hybrid electric vehicle; Biological system modeling; Optimization; Variable speed drives; Energy management strategy; Hybrid electric vehicle; Optimization;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5620837
