Online Algorithms for Optimal Control of Hybrid Propulsion Systems (OASys)

OASys is an interdisciplinary project between Computer and Engineering Sciences to develop online algorithms for the optimal control of hybrid propulsion systems. Hybrid propulsion systems consist of at least two kind of propulsion systems. The control of hybrid propulsion systems should combine the engines in such a way that the required driving force is achieved while the overall energy consumption is minimized. We consider parallel hybrid cars that are equipped with a combustion and an electrical engine.

Our approach combines optimization methods from the areas of control theory and artificial intelligence with online learning. Offline generated control laws for the optimal control are selected online such that a nearly optimal control strategy is built dynamically. Mathematical models and realistic simulations are used for the evaluation of our control strategies.


This project is funded 2012-2016 by the German Research Foundation (DFG) under the project id AB 461/2-1.


Institut für Regelungstechnik, RWTH Aachen University

Dirk Abel
Frank-Josef Heßeler
Jan Maschuw
Matthias Hoppe
Martina Josevski
Rainer Gasper

Informatik 1, RWTH Aachen University

Berthold Vöcking
Walter Unger
Sascha Geulen
Melanie Winkler

Lehr- und Forschungsgebiet Theory Hybrider Systeme, RWTH Aachen University

Erika Ábrahám
Johanna Nellen
Ulrich Loup


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