controlrely

Controlrely is a design and evaluation framework for ensuring reliable control in cyber-physical systems. It emphasizes the integration of fault tolerance, formal verification, and runtime assurance to maintain correct operation of control loops in the presence of faults, disturbances, or adversarial conditions.

The framework typically encompasses a modular, hierarchical control architecture with redundant sensors and actuators, diverse control algorithms, and secure communication protocols. Key elements include fault detection and isolation, graceful degradation of performance, runtime monitoring, and a safety case linking system behavior to formal requirements.

Applications span robotics, autonomous vehicles, industrial automation, energy systems, and aerospace. In practice, controlrely-guided designs rely on model-based design, simulation-based verification, and formal methods to prove properties such as stability, reachability, and safety under faults. Runtime assurance mechanisms may switch to safer modes when anomalies are detected.

Advantages include improved safety, reliability, and traceability; easier certification; and the ability to operate in degraded states. Challenges include increased design complexity, performance overhead, latency, and integration with legacy systems. Other hurdles are the lack of standardized evaluation metrics and the need for robust verification tools and secure control-plane communication.

Research directions encompass scalable verification techniques, adaptive redundancy, and standardized safety cases, as well as the development of benchmarks and case studies to validate controlrely approaches in real-world deployments.