An Intelligent Energy Management Strategy of Hybrid Vehicles Based on Traffic Preview Information

Abstract

Traffic preview information is helpful when constructing energy management strategies for hybrid vehicles. In this paper, an optimal control theory-based energy management strategy for fuel cell hybrid vehicles is proposed, which optimizes the vehicle's velocity profile when minimizing the fuel consumption based on the traffic preview information. The control problem is formulated and the proposed energy management strategy is applied to a fuel cell hybrid vehicle in a computer simulation environment. Simulation results show that the fuel economy is improved by the proposed energy management strategy compared to the case where the vehicle velocity is not optimized.