Learning in Control

Algorithms of artificial intelligence and machine learning are of increasing importance for control applications. Our research and expertise in this domain ranges from the modeling of unknown or uncertain dynamics over iterative and reinforcement learning to Bayesian optimization.

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Prof. Dr.-Ing. Knut Graichen
Tel.: +49 9131 85-27127
E-Mail | Homepage


One research focus at the Chair is on learning in model design and identification. Hybrid and data-driven models are attractive if physical modeling is either poor or requires high effort. Practical applications often require an online adaptation of these models in order to reflect effects of aging or wear or to increase the model accuracy in different operation regimes. Information about the reliability and trustworthiness of a learned model can directly be used within the control design. For instance, the prediction of the uncertainty allows to satisfy constraints with a given probability. A challenge with learning-based methods is to ensure real-time feasibility with possibly weak hardware resources in order to bring these advanced learning in control methods into practice.

Another field of research and expertise is learning in optimization and control, for instance, reinforcement learning and Bayesian optimization. Reinforcement learning aims at obtaining an optimal control strategy from repeated interactions with the system. Formulating this task as an optimization problem shows the conceptual similarity to model predictive control, with the difference that reinforcement learning does not require model knowledge of the system. In a similar spirit, Bayesian optimization allows to solve complex optimization problem, in particular if the cost function or constraints are not analytically known or can only be evaluated by costly numerical simulations. Many technical tasks such as the optimization of production processes, an optimal product design or the search of optimal controller setpoints can be formulated as (partially) unknown optimization problem, illustrating the generality and importance of Bayesian optimization.

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Related projects since 2021


Term: 1. November 2021 - 31. October 2024
Funding source: Industrie
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Term: 1. July 2021 - 30. June 2024
Funding source: Industrie
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Term: 1. July 2021 - 30. June 2024
Funding source: Deutsche Forschungsgemeinschaft (DFG)
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Precise interactions as part of industrial manufacturing tasks are typically very complex to characterize and implement. One reason for this is the heterogeneity of the task-specific requirements for the motion and control behavior. A direct implementation of the task into a robot program therefore requires highly qualified specialists and is only profitable for large lot sizes. For a flexible applicability and easy (re-)configuration of the robot system, an approach to programming by kinesthetic…

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Term: 1. November 2022 - 31. October 2025
Funding source: Bundesministerium für Wirtschaft und Energie (BMWE)
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To achieve climate targets, CO2 emissions in the building sector have to be significantly reduced. However, the integration of renewable energy sources increases the complexity of building energy systems and thus the requirements for the operation strategy. Model-based and predictive controllers are necessary for efficient operation. However, due to the high complexity of the energy systems, the development, implementation, and commissioning are very complex leading to high costs, which is why…

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Term: 1. October 2022 - 30. September 2025
Funding source: Bundesministerium für Forschung, Technologie und Raumfahrt (BMFTR)
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Term: 1. August 2023 - 31. July 2024
Funding source: Industrie
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Term: 1. February 2024 - 31. January 2026
Funding source: Bundesministerium für Wirtschaft und Energie (BMWE)
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Term: 1. July 2024 - 30. June 2027
Funding source: Industrie
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Term: 1. November 2024 - 30. April 2026
Funding source: Industrie
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Term: 1. September 2024 - 31. August 2025
Funding source: Industrie
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Related publications since 2020