CB

M. Sc. Christian Braun

  • Karlsruher Institut für Technologie (KIT) Campus Süd
    Institut für Regelungs- und Steuerungssysteme
    Geb. 11.20 (Engler-Villa)
    Kaiserstr. 12
    D-76131 Karlsruhe

Curriculum Vitae

Studies of electrical engineering and information technology at the Karlsruhe Institute of Technology (KIT).  

Bachelor's thesis at the Institute of Control Systems (IRS) on  power flow calculation algorithms (2016).

Internship with Siemens Healthineers in Princeton, NJ on a pulse sequence optimization for magnetic resonance fingerprinting (2017).

Master's thesis at the IRS on the development and analysis of Reinforcement-Learning-based controlers for differential games with an unknown cooperation partner (2018).

 

Research

Shared control of heterogenous robot swarms

Heterogenous swarms of robots are able to manage tasks that exceed the abilities of the individual robot systems by far.
This makes these robot swarms especially suited for challenging tasks like the exploration of potentially dangerous environments, medical applications and industrial production.

During regular operation, the swarm works fully automated; however, situations might occur that require the operator's intervention either because the automation lacks the ability to deal with the situation or because the operator wants to deviate from the automated procedure for other reasons. Since the manual operation of multiple robots would overwhelm the operator, the automation has to stay active during the intervention and support the operator. This leads to a shared control with both the automation and the operator partly in control of the system.
Ideally, solely the parts of the control that are required to perform the intervention should be handed over to the operator. All other parts should remain automated to assist the operator optimally.   

Publications


The DLR Scout Rover during the 2022 Arches Demomission Space on Mount Etna: Operating the Rover outside of its Comfort Zone
Pignède, A.; Schütt, M.; Franke, D.; Lichtenheldt, R.; Schindler, W.; Braun, C.; Kille, S.; Schneider, J.; Fischer, L.; Witucki, L.; Hohmann, S.; Zhang, S.; Staudinger, E.; Pöhlmann, R.; Broghammer, F.; Dammann, A.; Gentner, C.
2024. Proceedings of the Deutscher Luft- und Raumfahrtkongress 2023, Stuttgart, 1–13, Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR). doi:10.25967/610059
Model Predictive fuzzy Control of the Degree of Automation Optimizing Robot Health
Braun, C. A.; Ramesh, A.; Rothfuß, S.; Chiou, M.; Stolkin, R.; Hohmann, S.
2023. 2023 IEEE 17th International Symposium on Applied Computational Intelligence and Informatics (SACI), 000381–000386, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/SACI58269.2023.10158596
Experimental Evaluation of Model Predictive Mixed-Initiative Variable Autonomy Systems Applied to Human-Robot Teams
Ramesh, A.; Braun, C. A.; Rothfuß, S.; Hohmann, S.; Stolkin, R.; Chiou, M.
2023. 2023 IEEE International Conference on Systems, Man, and Cybernetics (SMC), October 1-4, 2023, Hyatt Maui, Hawaii, USA, Institute of Electrical and Electronics Engineers (IEEE)
Model Predictive Control of the Degree of Automation Optimizing Robot Health
Braun, C. A.; Ramesh, A.; Rothfuß, S.; Chiou, M.; Stolkin, R.; Hohmann, S.
2023. IEEE 17th International Symposium on Applied Computational Intelligence and Informatics (SACI 2023)
The ARCHES Moon-Analogue Demonstration Mission: Towards Teams of Autonomous Robots for Collaborative Scientific Sampling in Lunar Environments
Schuster, M. J.; Rebele, B.; Müller, M. G.; Brunner, S. G.; Dömel, A.; Vodermayer, B.; Giubilato, R.; Vayugundla, M.; Lehner, H.; Lehner, P.; Steidle, F.; Meyer, L.; Bussmann, K.; Reill, J.; Stürzl, W.; Bargen, I. von; Sakagami, R.; Smisek, M.; Durner, M.; Staudinger, E.; Pöhlmann, R.; Zhang, S.; Braun, C.; Dietz, E.; Frohmann, S.; Schröder, S.; Börner, A.; Hübers, H.-W.; Triebel, R.; Foing, B.; Albu-Schäffer, A. O.; Wedler, A.
2020. European Lunar Symposium (ELS)
Preliminary Results for the Multi-Robot, Multi-Partner, Multi-Mission, Planetary Exploration Analogue Campaign on Mount Etna
Wedler, A.; Müller, M. G.; Schuster, M.; Durner, M.; Brunner, S.; Lehner, P.; Lehner, H.; Dömel, A.; Vayugundla, M.; Steidle, F.; Sakagami, R.; Meyer, L.; Smisek, M.; Stürzl, W.; Schmitz, N.; Vodermayer, B.; Prince, A. F.; Staudinger, E.; Hellerer, M.; Lichtenheldt, R.; Dietz, E.; Braun, C.; Rebele, B.; Boerdijk, W.; Giubilato, R.; Reill, J.; Kuhne, M.; Lee, J.; Villacampa, A. F.; Bargen, I.; Schröder, S.; Frohmann, S.; Seel, F.; Triebel, R.; Lii, N. Y.-S.; Bischoff, E.; Kille, S.; Wormnes, K.; Pereira, A.; Carey, W.; Rossi, A. P.; Thomsen, L.; Graber, T.; Krüger, T.; Kyr, P.; Börner, A.; Bussmann, K.; Paar, G.; Bauer, A.; Völk, S.; Kimpe, A.; Rauer, H.; Hübers, H.-W.; Bals, J.; Hohmann, S.; Asfour, T.; Foing, B.; Albu-Schäffer, A.
2021. Proceedings of the International Astronautical Congress (IAC). Vol A3, Code 177573, International Astronautical Federation (IAF)
Finally! Insights into the ARCHES Lunar Planetary Exploration Analogue Campaign on Etna in summer 2022
Wedler, A.; Müller, M. G.; Schuster, M.; Durner, M.; Lehner, P.; Dömel, A.; Steidle, F.; Vayugundla, M.; Sakagami, R.; Meyer, L.; Smisek, M.; Stürzl, W.; Schmitz, N.; Vodermayer, B.; Prince, A. F.; Ehreiser, A.; Staudinger, E.; Pöhlmann, R.; Zhang, S.; Hellerer, M.; Lichtenheldt, R.; Franke, D.; Pignede, A. F. X.; Schindler, W.; Schütt, M.; Rebele, B.; Boerdijk, W.; Giubilato, R.; Reill, J.; Kuhne, M.; Lee, J.; Schröder, S.; Frohmann, S.; Seel, F.; Dietz, E.; Triebel, R.; Lii, N. Y.-S.; Bischoff, E.; Braun, C.; Kille, S.; Wormnes, K.; Pereira, A.; Carey, W.; Rossi, A. P.; Thomsen, L.; Graber, T.; Krüger, T.; Börner, A.; Irmisch, P.; Bussmann, K.; Paar, G.; Bauer, A.; Völk, S.; Rauer, H.; Hübers, H.-W.; Bals, J.; Hohmann, S.; Asfour, T.; Foing, B.; Albu-Schäffer, A. O.
2022. 73. International Astronautical Congress (IAC), 18-23 September 2022
Using a Collaborative Robotic Arm as Human-Machine Interface: System Setup and Application to Pose Control Tasks
Braun, C. A.; Haide, L.; Fischer, L.; Kille, S.; Varga, B.; Rothfuss, S.; Hohmann, S.
2023. 2023 IEEE International Conference on Robotics and Automation (ICRA)
Model Predictive Degree of Automation Regulation for Mobile Robots Using Robot Vitals and Robot Health
Braun, C. A.; Ramesh, A.; Rothfuß, S.; Chiou, M.; Stolkin, R.; Hohmann, S.
2023. 22nd World Congress of the International Federation of Automatic Control (IFAC 2023), Yokohama, Japan, July 9–14, 2023
Magnetic Resonance Fingerprinting Optimization In Magnetic Resonance Imaging
Braun, C. A.; Nadar, M. S.; Chen, X.; Mailhe, B.
2020
Belief Space Control with Intention Recognition for Human-Robot Cooperation
Braun, C. A.; Prezdnyakov, R.; Rothfus, S.; Hohmann, S.
2022. 2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 1897–1903, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/SMC53654.2022.9945170
Excitation for Adaptive Optimal Control of Nonlinear Systems in Differential Games
Karg, P.; Koepf, F.; Braun, C. A.; Hohmann, S.
2023. IEEE transactions on automatic control, 68 (1), 596–603. doi:10.1109/TAC.2022.3145651
A Cooperative Assistant System with Smoothly Shifting Control Authority Based on Partially Observable Markov Decision Processes
Braun, C. A.; Bohn, C.; Inga, J.; Hohmann, S.
2020. 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC), Toronto, ON, Canada, October 11–14, 2020., 806–811, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/SMC42975.2020.9283176
The ARCHES Space-Analogue Demonstration Mission: Towards Heterogeneous Teams of Autonomous Robots for Collaborative Scientific Sampling in Planetary Exploration
Schuster, M. J.; Muller, M. G.; Brunner, S. G.; Lehner, H.; Lehner, P.; Sakagami, R.; Domel, A.; Meyer, L.; Vodermayer, B.; Giubilato, R.; Vayugundla, M.; Reill, J.; Steidle, F.; Von Bargen, I.; Bussmann, K.; Belder, R.; Lutz, P.; Sturzl, W.; Smisek, M.; Moritz, M.; Stoneman, S.; Prince, A. F.; Rebele, B.; Durner, M.; Staudinger, E.; Zhang, S.; Pohlmann, R.; Bischoff, E.; Braun, C.; Schroder, S.; Dietz, E.; Frohmann, S.; Borner, A.; Hubers, H.-W.; Foing, B.; Triebel, R.; Albu-Schaffer, A. O.; Wedler, A.
2020. IEEE Robotics and automation letters, 5 (4), 5315–5322. doi:10.1109/LRA.2020.3007468
A Continuous and Quantitative Metric for the Levels of Automation
Braun, C. A.; Flad, M.; Hohmann, S.
2019. IFAC-PapersOnLine, 52 (19), 37–42. doi:10.1016/j.ifacol.2019.12.081
Comparison of the Holomorphic Embedding Load Flow Method with Established Power Flow Algorithms and a New Hybrid Approach
Sauter, P. S.; Braun, C. A.; Kluwe, M.; Hohmann, S.
2017. 2017 Ninth Annual IEEE Green Technologies Conference (GreenTech), Denver, CO, USA, 29-31 March 2017, 203–210, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/GreenTech.2017.36