| Abstract |
The transition from conventional mechanical-hydraulic actuation systems to innovative "x-by-wire"
solutions in the treatment and transmission of pilot's commands represents a new leading edge for the
automotive industry. Relevant improvements are indeed expected from the introduction of electrical
drives suitably controlled by hierarchical computer-based management systems interconnected through a
field bus: better performances, greater overall safety and reliability, higher efficiency, lower emissions,
reduced maintenance etc. Starting from the servo-systems presently adopted, this paper aims to presents
an overview of the main issues and of the most interesting solutions proposed in the technical literature,
particularly referring to the aspects regarding electric machines and drives. The potential benefits with
respect to conventional systems are highlighted, and some orienting considerations are formulated
referring both to conventional powertrain structures and to hybrid and electric vehicles. |
