Power management strategy based on game theory for fuel cell hybrid electric vehicles

Abstract

In this paper, we present an integrated system approach based on game theory for automotive electrical power and energy management systems. We apply this approach to a case study fuel cell hybrid electric vehicle (FC-HEV) by using the Simulink-based simulator ADVISOR. The case study fuel cell vehicle is rated at 80 kW peak and 25 kW average propulsion power, and consists of a fuel cell stack, a battery pack, an ultra capacitor, and two 35 kW induction motors. In this control strategy, the game 'players' are the individual power sources, and the 'strategies' of players are their alternating states. The objective of the players is to maximize their payoff, where the payoff is a function of the powertrain efficiency and vehicle performance. Simulation results indicate that the optimal power and energy management strategy can improve both fuel economy and performance.