An Improved Energy Management Strategy for Parallel Hybrid Electric Vehicle

Effective control strategy (EMS) is very important for high fuel economy, low emission and good driving performance of hybrid electric vehicles. First, the operation mode of parallel hybrid electric vehicles was analyzed and the rule-based EMS was introduced. Then the equivalent fuel consumption minimization strategy (ECMS) was modified by the variation of battery state of charge (SOC) and introduced to optimize the EMS. Finally, this EMS was implemented in JA1015 drive cycle and analyzed by advanced vehicle simulation software CRUISE. The simulation results indicate that the improved EMS reduces fuel consumption effectively by distributing the torque between engine and motor properly, and it also sustains the battery SOC in a proper range

[1]  D. Schroder,et al.  An approach for the online optimized control of a hybrid powertrain , 2002, 7th International Workshop on Advanced Motion Control. Proceedings (Cat. No.02TH8623).

[2]  Thierry-Marie Guerra,et al.  Equivalent consumption minimization strategy for parallel hybrid powertrains , 2002, Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367).

[3]  Huei Peng,et al.  Power management strategy for a parallel hybrid electric truck , 2003, IEEE Trans. Control. Syst. Technol..

[4]  A. Piccolo,et al.  Optimisation of energy flow management in hybrid electric vehicles via genetic algorithms , 2001, 2001 IEEE/ASME International Conference on Advanced Intelligent Mechatronics. Proceedings (Cat. No.01TH8556).