Electrical Mobility


The aim is for students to gain knowledge in electric drive systems for railways and electrical vehicles, analyse the constraints of the systems and scale drive systems. Students should be able to identify the main solutions used in electric traction systems, make the calculation of fundamental quantities and scale components of electric traction systems.

General characterization





Responsible teacher

João Francisco Alves Martins


Weekly - 4

Total - Available soon

Teaching language



Available soon


Roger Kaller e Jean-Marc Allenbach (Vol. I e II) – Traction Eléctrique, Presses Polytechniques et Universitaires Romandes, 1995

Roger Kaller, Pierre Chapas, Michel Comte e Jean-Marc Allenbach – Traction Eléctrique, Presses Polytechniques et Universitaires Romandes,  2008

Marcel Tessier – Traction Electrique et Thermo-Electrique. Ed. Scientifiques Riber, 1978

João Palma – Accionamentos Electromecânicos. Ed. Gulbenkian

Bimal Bose - Power Electronics and Motor Drives, Elsevier, 2006

Modern electric vehicle technology. C. C. Chan, K. T. Chau. New York : Oxford University Press, 2001

Theory of ground vehicles. J. Y. Wong, John Wiley & Sons

Teaching method

Available soon

Evaluation method

Available soon

Subject matter

Initial concepts of electric mobility.

Railway traction. National and European network. Electrification. Motion equations and developed forces (dynamic movement). Calculation of fundamental quantities (rolling resistance, tractive effort, acceleration, speed, power and energy). Mechanical railway installations: catenary, pantograph and boogies. Locomotives’ classification.

DC and AC motors and control. Regenerative braking. Alternative techniques of motorization, linear motors and magnetic levitation.

Mechanical couplings (rigid and elastic). Speed gearboxes.

Electrical vehicles traction. Electric and hybrid vehicles. Motion equations and developed forces (dynamic movement).


Programs where the course is taught: