The main objective of the DOVELAR project is to contribute to the improvement of fuel cell based electrical powertrains. This will be carried out in three main directions: the construction of an improved fuel cell compared to the state of the art, the improvement of the control and energy management systems of the PEM fuel cell hybrid systems, and the validation and tuning in three specific applications of practical interest. Given that these objectives are fully multidisciplinary, the project will be structured in three subprojects.