1. Department of Mechanical Engineering, Universidad de La Frontera, Temuco, Chile
2. Université de Lorraine, CNRS, CRAN, Nancy, France
3. Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile
4. School of Automation, Chongqing University, Chongqing, China
5. Department of Electrical Engineering, Universidad de La Frontera, Temuco, Chile