Present and future of ecodriving on spanish high speed trains

Renfe is working to reduce energy consumption on train operation, by means of the design of efficient driving commands: no powering in slopes (coasting), speed regulation without braking. Renfe, in collaboration with Comillas University of Madrid have developed simulation models and adjusted them by means of specific driving tests. These models have been applied to design the optimal ecodriving for commercial services on different high speed lines (HSL) in Spain. 21% of average energy savings have been measured on commercial services. The next step will be the automatic execution of ecodrivings by an efficient onboard ATO equipment and the on-line modification of the ecodriving according to the traffic circumstances