%0 Journal Article %T Experimental validation of constraint mitigation algorithm in underwater robot depth control %A Benoit Clement %A Fabricio Garelli %A Juan Luis Rosendo %J Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering %@ 2041-3041 %D 2019 %R 10.1177/0959651818791399 %X This work explores both modeling and control of the experimental Ciscrea autonomous underwater vehicle. A 6-degree-of-freedom model is presented and validated for turn and emerge/sink maneuvers. Then, a constraint compensating algorithm is proposed based on quasi-sliding mode conditioning ideas and added to a pre-existing inaccessible proportional-derivative controller in order to improve the overall closed-loop response. By considering actuator constraints, the employed technique allows path following at greater speed than the original controller for a given error tolerance. Experimental results on the so-called Ciscrea underwater robot are presented %K Modeling %K autonomous underwater vehicle %K sliding mode control %K actuator constraints %U https://journals.sagepub.com/doi/full/10.1177/0959651818791399