Energy Management and Drivability Control Problems for Hybrid Electric Vehicles

Control strategies for hybrid-electric vehicles generally target several simultaneous objectives. The primary one is the minimization of the vehicle fuel consumption, while also attempting to minimize emissions and to maintain or enhance drivability. Hybrid electric vehicle improvements in fuel economy and emissions strongly depend on the energy management strategy and vehicle powertrain configuration. This paper presents an overview of state-of-the-art energy management approaches for the control of different hybrid electric powertrain configurations.