The ideas shown in this paper have been developed having in mind the m
ain goal of designing a completely autonomous wheelchair prototype. Th
e state of the art of mobile robotics is compared with the new trends
in the field. The idea of autonomy made us focus our research in extra
cting the best from conventional Intelligent Mobile Robots techniques,
looking towards the concept of Autonomous Mobile Systems (AMS). In or
der to clarify the body of the presentation, some practical examples,
developed at our laboratory (DISAM-UPM), are included in parallel with
the main discourse.