Fuzzy switching of fuzzy rules for energy management in HEV

Abstract Energy management or supervisory control of Hybrid Electric Vehicles (HEV) has been the subject of a large amount of scientific effort in the last years. This paper presents a real time energy management algorithm based on fuzzy rules controller. This strategy has been improved applying a specified method of fuzzy rules switching. This method takes into account the evolution of the state of charge of the storage element at any time; in addition it carries the fuel cell to operate at its best efficiency point. It was verified, if the method of fuzzy switching is applied in real time on any unknown profile, the result is near-optimal.