Energy sources control and management in hybrid electric vehicles

The development of Hybrid Electric Vehicles is one of the most effective solutions to improve our environment. For the purposes of improving the characteristic and efficiency of Hybrid Electric Vehicles, different hybrid drive train topologies with super capacitor based energy storages have been studied with concern about energy sources control and management. The methods of controlling mean power and controlling peak power according to the load current have been presented in this paper. The experimental results proved that the super capacitor based energy storage is fully controlled by using our strategy of control and management, and that the main power supply system (even without mean power control) is controlled to only supply the mean power. The efficiency and lifecycle of the main power supply system (e.g. fuel cell) can be improved. And good dynamics of the Hybrid Electric Vehicle have been achieved.