Data-Driven and Robust Control Systems Advancements

The recent developments in the research area of control systems and dynamical models have shown a significant shift towards data-driven methodologies and robustness enhancements. There is a notable emphasis on leveraging machine learning techniques, particularly foundation models and neural networks, to address complex control problems. These approaches aim to improve generalization, data efficiency, and robustness across various dynamical systems, often through the use of synthetic data and transfer learning strategies. Additionally, there is a growing interest in enhancing the reliability and accuracy of control system analysis tools, such as the Sinusoidal Input Describing Function (SIDF), to better handle high-order harmonics and precision motion systems. Safety and stability remain critical concerns, with innovations in control barrier functions and incremental input-to-state stability (delta-ISS) controllers being developed to ensure robust performance in unknown or uncertain environments. The integration of physics-informed models with data-driven approaches is also emerging as a promising direction to reduce data requirements and improve the accuracy of safety verification in nonlinear systems. Overall, the field is progressing towards more intelligent, adaptive, and resilient control systems that can operate effectively under a wide range of conditions and uncertainties.

Noteworthy papers include one that explores the feasibility of foundation models for dynamical systems using synthetic data, demonstrating superior generalization and robustness. Another paper introduces a novel approach to synthesizing control barrier functions from high relative degree safety constraints, addressing limitations in existing methods. Additionally, a study on enhancing the reliability of SIDF analysis for reset control in precision motion systems stands out for its practical contributions to improving system performance and stability.

Sources

Dissipative iFIR filters for data-driven design

On Foundation Models for Dynamical Systems from Purely Synthetic Data

Enhancing the Reliability of Closed-Loop Describing Function Analysis for Reset Control Applied to Precision Motion Systems

Data-Driven and Stealthy Deactivation of Safety Filters

Transfer Learning for Control Systems via Neural Simulation Relations

Rectified Control Barrier Functions for High-Order Safety Constraints

Abstraction-based Control of Unknown Continuous-Space Models with Just Two Trajectories

Certified Learning of Incremental ISS Controllers for Unknown Nonlinear Polynomial Dynamics

Learning Robust Safety Controllers for Uncertain Input-Affine Polynomial Systems

A Physics-Informed Scenario Approach with Data Mitigation for Safety Verification of Nonlinear Systems

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