Hybrid Energy Management Strategy for Hybrid Electric Vehicle

Abstract

Energy management strategy (EMS) is the key for efficient hybrid vehicles. Two EMS kinds can be generally used: optimal-based algorithms to reach optimum and rule-based algorithms for its easy implementation. The paper objective is to propose a hybrid optimal EMS using optimal-based and rule-based approaches to use benefits of each approach. This hybrid optimal approach enables to reduce the computation time keeping the optimal behavior. This mix is realized thanks to a multi-level structuration of the EMS. This hybrid optimal EMS is a transient step to structure the EMS design. This hybrid optimal EMS, applied on a complex hybrid vehicle enables to divide the computation time by 16 keeping the optimal behavior.