Title: An investigation on energy optimisation of the CFA6470 parallel hybrid electric vehicle

Authors: Yuanwang Deng, Jinke Gong, Jing Yang, Ligang Tan

Addresses: College of Mechanical and Automobile Engineering, Hunan University, Changsha, Hunan, China 410082. ' College of Mechanical and Automobile Engineering, Hunan University, Changsha, Hunan, China 410082. ' College of Mechanical and Automobile Engineering, Hunan University, Changsha, Hunan, China 410082. ' College of Mechanical and Automobile Engineering, Hunan University, Changsha, Hunan, China 410082

Abstract: The hybrid ratio of a parallel hybrid electric vehicle (PHEV) and its energy management strategy are analysed. On the basis of the drivetrain configuration of the CFA6470 parallel hybrid electric vehicle (CFA6470PHEV), the energy management system of the CFA6470PHEV is designed. The optimisation of the engine throttle angle and vehicle shift, along with the mild hybrid and full hybrid strategy are also studied. An energy balance method is introduced to estimate the state of charge for the battery pack. The energy management system is simulated with the experimental data of the engine and ECE-EUDC cycles. Simulation results indicate that the energy management system is feasible and achieve the anticipated goal.

Keywords: energy management systems; energy optimisation; parallel hybrid electric vehicles; PHEVs; HEVs; state of charge; drivetrain configuration; engine throttle angle; vehicle shift; energy balance; simulation.

DOI: 10.1504/IJEHV.2008.017832

International Journal of Electric and Hybrid Vehicles, 2008 Vol.1 No.2, pp.166 - 187

Published online: 18 Apr 2008 *

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