Dieses Bild zeigt Torbjørn Cunis

Torbjørn Cunis

Herr Dr.

Akademischer Rat auf Zeit / Gruppenleiter Aerospace Control Systems & Optimization
Institut für Flugmechanik und Flugregelung

Kontakt

+49 711 685 66617
 Persönlicher Webex-Raum
 +49 711 685 66670
Visitenkarte (VCF)

Pfaffenwaldring 27
70569 Stuttgart
Deutschland
Raum: 2.043

Sprechstunde

  • In der Vorlesungszeit: Montags, 16 bis 17 Uhr, und donnerstags, 12 bis 13 Uhr.
  • Außerhalb der Vorlesungszeit nach Vereinbarung.

Fachgebiet

Nichtlineare Systemtheorie, Mathematische Optimierung, Optimierungsbasierte Regelansätze, Systemtheoretische Methoden in der Luft- und Raumfahrttechnik.

Studium

2013 B.Sc. Computer Science, University of Würzburg
2014 B.Sc. Aerospace Computer Engineering, University of Würzburg
2016 M.Sc. Automation Engineering, RWTH Aachen University
2019 Dr. Systems & Control, ISAÉ-Supaéro, University of Toulouse

Fachverbände

AIAA, IEEE, VDI

  1. M. Schneider, R. Loureiro, T. Cunis, and W. Fichter, “Trajectory Prediction for Missile Targets: A Probabilistic Approach Using Machine Learning,” in CEAS EuroGNC 2024, Council of European Aerospace Societies, 2024, pp. CEAS–GNC. [Online]. Available: https://eurognc.ceas.org/archive/EuroGNC2024/pdf/CEAS-GNC-2024-103.pdf
  2. I. Kolmanovsky, T. Cunis, and E. Garone, “Command Governors Based on Bilevel Optimization for Constrained Spacecraft Orbital Transfer,” in AIAA SCITECH 2024 Forum, American Institute of Aeronautics and Astronautics, Jan. 2024. doi: 10.2514/6.2024-0097.
  3. T. Cunis and H. Pfifer, “A semi-algebraic view on quadratic constraints for polynomial systems,” Automatica, vol. 163, Art. no. 111549, 2024, doi: 10.1016/j.automatica.2024.111549.
  4. T. Cunis and I. Kolmanovsky, “Input-to-State Stability of Newton Methods for Generalized Equations in Nonlinear Optimization⋆,” in 2024 IEEE 63rd Conference on Decision and Control (CDC), 2024, pp. 5950–5956. doi: 10.1109/CDC56724.2024.10885904.
  5. T. Cunis, “Decomposed quasiconvex optimization with application to generalized cone problems,” Optimization Letters, 2024, doi: 10.1007/s11590-024-02174-1.
  6. T. Cunis and J. Olucak, “Implementation details and source code for CaΣoS: A nonlinear sum-of-squares optimization suite,” 2024, doi: 10.18419/darus-4499.
  7. T. Cunis, “Source code and Numerical Examples for Decomposed Quasiconvex Optimization with Application to Generalized Cone Problems,” 2024, doi: 10.18419/darus-4024.
  8. T. Cunis and B. Legat, “Sequential sum-of-squares programming for analysis of nonlinear systems,” in 2023 American Control Conference, San Diego, CA, 2023. doi: 10.23919/ACC55779.2023.10156153.
  9. T. Cunis, I. Kolmanovsky, and C. E. S. Cesnik, “Integrating Nonlinear Controllability into a Multidisciplinary Design Process,” Journal of Guidance, Control, and Dynamics, vol. 46, Art. no. 6, 2023, doi: 10.2514/1.G007067.
  10. T. Cunis and I. Kolmanovsky, “Input-to-State Stability of a Bilevel Proximal Gradient Descent Algorithm,” IFAC-PapersOnLine, vol. 56, Art. no. 2, 2023, doi: 10.1016/j.ifacol.2023.10.633.
  11. T. Skibik, D. Liao-McPherson, T. Cunis, I. V. Kolmanovsky, and M. M. Nicotra, “A Feasibility Governor for Enlarging the Region of Attraction of Linear Model Predictive Controllers,” IEEE Transactions on Automatic Control, vol. 67, Art. no. 10, 2022, doi: 10.1109/TAC.2021.3123224.
  12. R. Schieni, M. Simsek, T. Cunis, O. Bilgen, and L. Burlion, “Control of Bistable Structures Using a Modified Hybrid Position Feedback Controller,” in AIAA SciTech Forum 2022, San Diego, CA, 2022. doi: 10.2514/6.2022-0922.
  13. T. Cunis, I. Kolmanovsky, and C. E. S. Cesnik, “Control Co-Design Optimization: Integrating nonlinear controllability into a multidisciplinary design process,” in AIAA SciTech Forum 2022, San Diego, CA, 2022. doi: 10.2514/6.2022-2176.
  14. T. Cunis, “Local Stability Analysis for Sensor-based Inexact Feedback Linearization,” in 6th CEAS Conference on Guidance, Navigation, and Control, Berlin, 2022. [Online]. Available: https://eurognc.ceas.org/archive/EuroGNC2022/html/CEAS-GNC-2022-052.html
  15. R. M. Bertolin, G. C. Barbosa, T. Cunis, I. Kolmanovsky, and C. E. S. Cesnik, “Gust Rejection of a Supersonic Aircraft During Final Approach,” in AIAA SciTech Forum 2022, San Diego, CA, 2022. doi: 10.2514/6.2022-2174.
  16. T. Skibik, D. Liao-McPherson, T. Cunis, I. Kolmanovsky, and M. M. Nicotra, “Feasibility Governor for Linear Model Predictive Control,” in Proceedings of the American Control Conference, New Orleans, LA, 2021, pp. 2329–2335. doi: 10.23919/ACC50511.2021.9483054.
  17. B. Lai, T. Cunis, and L. Burlion, “Nonlinear Trajectory Based Region of Attraction Estimation for Aircraft Dynamics Analysis,” in AIAA Scitech 2021 Forum, Virtual, 2021. doi: 10.2514/6.2021-0253.
  18. T. Cunis and I. Kolmanovsky, “Viability, viscosity, and storage functions in model-predictive control with terminal constraints,” Automatica, vol. 131, Art. no. 109748, 2021, doi: 10.1016/j.automatica.2021.109748.
  19. T. Cunis, J.-P. Condomines, L. Burlion, and A. la Cour-Harbo, “Dynamic Stability Analysis of Aircraft Flight in Deep Stall,” Journal of Aircraft, vol. 57, Art. no. 1, 2020, doi: 10.2514/1.C035455.
  20. T. Cunis, J.-P. Condomines, and L. Burlion, “Local stability analysis for large polynomial spline systems,” Automatica, vol. 113, p. 108773, 2020, doi: 10.1016/j.automatica.2019.108773.
  21. T. Cunis, J. P. Condomines, and L. Burlion, “Sum-of-squares flight control synthesis for deep-stall recovery,” Journal of Guidance, Control, and Dynamics, vol. 43, Art. no. 8, 2020, doi: 10.2514/1.G004753.
  22. T. Cunis, D. Liao-McPherson, I. Kolmanovsky, and L. Burlion, “Model-Predictive Spiral and Spin Upset Recovery Control for the Generic Transport Model Simulation,” in 2020 IEEE Conference on Control Technology and Applications, Montréal, 2020, pp. 1–7. doi: 10.1109/CCTA41146.2020.9206158.
  23. M. Karásek et al., “Accurate position control of a flapping-wing robot enabling free-flight flow visualisation in a wind tunnel,” in International Journal of Micro Air Vehicles, 2019. doi: 10.1177/1756829319833683.
  24. T. Cunis, L. Burlion, and J.-P. P. Condomines, “Piecewise polynomial modeling for control and analysis of aircraft dynamics beyond stall,” Journal of Guidance, Control, and Dynamics, vol. 42, Art. no. 4, 2019, doi: 10.2514/1.G003618.
  25. T. Cunis, “Modeling, Analysis, and Control for Upset Recovery: From system theory to unmanned aircraft flight,” Doctoral thesis, ISAE-Supaéro, Université de Toulouse, Toulouse, 2019. [Online]. Available: https://tel.archives-ouvertes.fr/tel-02555908
  26. T. Cunis, D. Liao-McPherson, J. P. Condomines, L. Burlion, and I. Kolmanovsky, “Economic Model-Predictive Control Strategies for Aircraft Deep-stall Recovery with Stability Guarantees,” in Proceedings of the IEEE Conference on Decision and Control, Nice, 2019, pp. 157–162. doi: 10.1109/CDC40024.2019.9030207.
  27. T. Cunis, T. Leth, L. C. Totu, and A. la Cour-Harbo, “Identification of Thrust, Lift, and Drag for Deep-stall Flight Data of a Fixed-wing Unmanned Aircraft,” in 2018 International Conference on Unmanned Aircraft Systems, Dallas, TX, 2018, pp. 531–538. doi: 10.1109/ICUAS.2018.8453340.
  28. T. Cunis, L. Burlion, and J.-P. Condomines, “Piece-wise identification and analysis of the aerodynamic coefficients, trim conditions, and safe sets of the generic transport model,” in AIAA Guidance, Navigation, and Control Conference, 2018. doi: 10.2514/6.2018-1114.
  29. T. Cunis and E. Baskaya, “Performance of Unmanned Aircrafts in the Event of Loss-of-control,” in 10th International Micro Air Vehicle Conference and Competition, Melbourne, 2018.
  30. T. Cunis, “The pwpfit Toolbox for Polynomial and Piece-wise Polynomial Data Fitting,” IFAC-PapersOnLine, vol. 51, Art. no. 15, 2018, doi: 10.1016/j.ifacol.2018.09.204.
  31. T. Cunis, J.-P. Condomines, and L. Burlion, “Full-envelope, six-degrees-of-freedom trim analysis of unmanned aerial systems based on piece-wise polynomial aerodynamic coefficients,” in 2017 Workshop on Research, Education and Development of Unmanned Aerial Systems, 2017, pp. 108–113. doi: 10.1109/RED-UAS.2017.8101652.
  32. T. Cunis, L. Burlion, and J.-P. Condomines, “Non-linear Analysis and Control Proposal for In-flight Loss-of-control,” in Preprints of the 20th IFAC World Congress, Toulouse, 2017, pp. 10681–10685.
  33. T. Cunis, M. Karásek, and G. C. H. E. de Croon, “Precision Position Control of the DelFly II Flapping-wing Micro Air Vehicle in a Wind-tunnel,” in 8th International Micro Air Vehicle Conference and Competition, Beijing, 2016.

Im Sommersemester gebe ich die Vorlesungen Mehrgrößenregelung und Nichtlineare Optimierung. Außerdem biete ich zusammen mit meiner Gruppe das Seminar Systems Theoretical Methods for Flight Control an.

Im Wintersemester gebe ich die Vorlesungen Mehrgrößenregelung und Analysis an Control of Nonlinear Flight Systems. 

 

Abschlussarbeiten

Gerne betreue ich Arbeiten zu Ihrem individuellen Thema aus den Bereichen der nichtlinearen Flugsystem- und -regelungstheorie.

 

Betreute Themen

  • Norm-based region of attraction estimation for AI (MA)
  • Neural network based model-predictive upset recovery control in real-time (BA)
  • Strategies for convergence of region of attraction estimation algorithms (MA)
  • Quantitative stability analysis based on inflight experiments (BA)
  • Real-time optimization of model-predictive control for aircraft upset recovery (MA)
  • A feasibility governor for model-predictive control of an aerial robot (MA)

Ich bin Akademischer Rat der Universität Stuttgart, Adjunct Assistant Research Scientist an der Universität Michigan und Mitglied des Jungen ZiFs am Zentrum für interdisziplinäre Forschung der Universität Bielefeld.

Ausbildung

2010—2014 Studium der Informatik (B.Sc. 2013) und der Luft- und Raumfahrtinformatik (B.Sc. 2014) an der Universität Würzburg

2014—2016 Studium der Automatisierungstechnik (M.Sc. 2016) an der RWTH Aachen

2019 Promotion in Regelungs- und Systemtheorie an der ISAE-Supaéro, Universität Toulouse

Forschung

2019—2021 Research Fellow an der Universität von Michigan in Ann Arbor, MI

2016—2019 Doktorand am französischen Luftfahrtforschungsinstitut ONERA und der Hochschule für zivile Luftfahrt, ENAC, in Toulouse

Aufenthalt

2018 Vehicle Optimization Lab, Universität von Michigan

2018 Automation & Control Group, Universität Aalborg

2015/2016 Micro Air Vehicle Lab, Technische Hochschule Delft

  1. Metric Regularity and its Role in the Systems Theory of Nonlinear Optimization, University of Michigan, Department of Electrical Engineering and Computer Science (Ann Arbor, MI, USA), March 14, 2025. Aufzeichnung, Foliensatz
  2. Nonlinear Sum-of-squares Optimization: Theory, Methods, Applications, University of Minnesota, Department of Aerospace Engineering and Mechanics (Minneapolis, MN, USA), March 20, 2025. Foliensatz
  3. Characterizations of Strong Metric Regularity in Nonlinear Optimization, TU Wien, Variational Analysis, Dynamics, and Operations Research (Vienna, Austria), May 5, 2025. Foliensatz
  4. Characterizations of Input-to-State Stability in Nonlinear Optimization Algorithms, Seminar on Input-to-State Stability and its Applications (Online), May 21, 2025. Aufzeichnung, Foliensatz
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