Rule-based Control and Fuzzy Control for Power Management Strategies for Hybrid Vehicles

Abstract

The hybrid electric vehicle (HEV) is an alternative to reduce fuel consumption and increase vehicle performance, maintaining the safety and trustworthiness of conventional vehicles. The power management strategy (PMS) influences directly the fuel economy and performance of HEVs. This paper presents two different management approaches for the power management: rule-based control and fuzzy control. Through analysis of the engine consumption map, the results of the simulation show that the fuzzy strategy demonstrates better performance than a rule-based strategy. Therefore, this study indicates that the fuel economy can be substantially enhanced with a correct power management strategy