“…In this paper, we revisit the problems of set-point (constant operating point) and tracking (time-varying operating regime) control of open-loop chaotic permanent-magnet synchronous machines (PMSM). This problem has attracted a number of researchers from different areas as witnessed by the variety of publications' fora: physics cf., [3], [4], (power) electronics cf., [5]- [7], electrical engineering (circuits) cf., [8]- [12]; besides the fact that the PMSM is a popular benchmark in the control community cf., [13], [14]. One of the key problems related to the PMSM is its natural chaotic behavior, for certain choices of parameters and initial conditions, see, e.g., [15], [16], [6], [11].…”