“…However, its function can be fulfilled by combining electrical measurements with calculation algorithms to reconstruct of position and speed. In addition, several methods of position estimation have been proposed in the literature [5][6][7][8][9][10], on how to counter the problems the reliability of the sensors in a complex and hostile operating environment, including electric powertrain . Therefore, designing complete observers (both position and speed estimation) is a necessary step for control tracking, diagnosis, and other fault-tolerant control design problems.…”