A method (100) is described for the automatic management of the energy autonomy of a vehicle of the type comprising a torque-controllable motor (21), a plurality of sensors (22) for the instantaneous measurement of a plurality of drive parameters and of energy capacity (C) of such a vehicle, and a first central control unit (23) coupled with the motor (21), capable of generating an instantaneous torque request (md) on the basis of a request of a user. The method (100) comprises the phases of receiving (101) from an interface means (11) a signal for indicating a distance and/or a path to cover, and dividing the distance and/or the path into a plurality of space intervals; calculating (102) an allowable variation of energy capacity (AC) in a space interval on the basis of an energy capacity (C) detected by the plurality of sensors (22) and on the basis of variation laws of the energy capacity (C); determining (103) limit conditions for the speed and/or acceleration of the vehicle (20), on the basis of a map, chosen among a plurality of maps of speed-acceleration-variation of energy capacity; generating (110) a regulated instantaneous torque request (m) on the basis of the speed and/or acceleration detected by the plurality of sensors (22), of the determined limit conditions for the speed and/or acceleration and of the instantaneous torque request (md) generated by the first central control unit (23). Moreover, an electronic system (10) capable of implementing such a method is described.