Elio Usai

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About

Elio Usai is a leading figure in nonlinear control theory, with a particular focus on sliding mode control and its application to autonomous underwater vehicles (AUVs). His seminal work, "Tracking control of underwater vehicles including thruster dynamics by second order sliding modes" (2002), introduced a multi-input second-order sliding mode algorithm that ensures robust tracking and stabilization despite the significant disturbances and model uncertainties inherent in underwater robotics. This contribution has been foundational for advancing the reliability of AUVs in complex marine environments. With over 2,000 citations across his body of work, Usai’s research has had a lasting impact on both theoretical control systems and practical robotics. He is also recognized for his contributions to higher-order sliding modes and chattering reduction techniques, which have been widely adopted in aerospace and automotive applications. His work continues to inspire new generations of control engineers seeking robust solutions for real-world systems.