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P+d Plus Sliding Mode Control for Bilateral Teleoperation of a Mobile Robot

Lucio R. Salinas*, Diego Santiago, Emanuel Slawiñski, Vicente A. Mut, Danilo Chavez, Paulo Leica, and Oscar Camacho
International Journal of Control, Automation, and Systems, vol. 16, no. 4, pp.1927-1937, 2018

Abstract : "This paper proposes a control scheme based on combining a PD-like structure and a sliding mode control (SMC) applied to mobile robot bilateral teleoperation systems, in the face of asymmetric and time-varying delays. The proposal includes on the remote site both a P+d control and an SMC strategy in such a way that the advantages of both methods are exploited. The system stability is analyzed using Lyapunov-Krasovskii functionals and a delaydependent stability criteria is obtained using linear-matrix-inequalities (LMI). Finally, the teleoperation system is evaluated through human-in-the-loop experiments to confirm the theoretical results and test the robustness and stability of the proposed control scheme."

Keyword : Bilateral teleoperation, Lyapunov-Krasovskii, mobile robot, PD-like control, sliding mode control.

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