Cesar A. Lopez Martinez

TL;DR: The effectiveness of the synthesis of a switching robust controller that allows to design multiple robust controllers suitable for different ranges of environment stiffness is shown, so that an overall better performance is achieved.

TL;DR: This work proposes a methodology in which a parametric model of the teleoperation system is developed, and exploits robust control techniques based on linear matrix inequalities to design controllers that aim to achieve a predefined performance, and are robust to bounded but arbitrarily fast-time-varying parametric uncertainties.

TL;DR: This work proposes the synthesis of a switching robust controller that increases the environment stiffness range for which both stability and transparency is achieved and shows the applicability of the approach by experiments on a 1-DOF teleoperated system interacting with a virtual spring.

TL;DR: Improvements in mechanical, electrical and software design of the authors' middle-size league robots are discussed and progress is discussed in designing a four-wheeled soccer robot with a suspension system and on a smartphone application which real-time visualizes robot status and game state.

TL;DR: Improvements in mechanical, electrical and software design, which the team did to become RoboCup 2014 world champion are discussed, including first steps towards improved passing accuracy via velocity feedback control on the shooting lever and intelligent gameplay.