1. A method ( 100 ) 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 said vehicle, and a first central control unit ( 23 ) coupled with said motor ( 21 ), capable of generating an instantaneous torque request (md) on the basis of a request of a user, wherein the method ( 100 ) comprises phases of: receiving ( 101 ) from a user interface means ( 11 ) a signal for indicating a distance and/or a path to cover, and dividing such distance and/or said path into a plurality of space intervals; calculating ( 102 ) an allowable variation of energy capacity (ΔC) in a space interval on the basis of an energy capacity (C) detected by said plurality of sensors ( 22 ) and on the basis of variation laws of said energy capacity (C); determining ( 103 ) limit conditions for the speed and/or acceleration of said vehicle ( 20 ) on the basis of a map, chosen among a plurality of maps of speed-acceleration-variation of energy capacity, which relates the speed and the acceleration of said vehicle ( 20 ) with the variation of the calculated energy capacity (ΔC); generating ( 110 ) a regulated instantaneous torque request (m) on the basis of the speed and/or acceleration detected by said plurality of sensors ( 22 ), of said determined limit conditions for the speed and/or acceleration and of said instantaneous torque request (m d ) generated by said first central control unit ( 23 ), wherein said generating phase ( 110 ) of a regulated instantaneous torque request (m) comprises phases of: determining ( 111 ) a reference torque request (m c ) on the basis of current values of speed and/or acceleration detected by said plurality of sensors ( 22 ); receiving ( 112 ) from said first central control unit ( 23 ) an instantaneous torque request (md) corresponding to a request made by the user; verifying ( 113 ) that the current values of speed and/or acceleration detected by said plurality of sensors ( 22 ) meet said determined limit conditions for the speed and/or acceleration; if said limit conditions for the speed and/or acceleration are met, determining ( 114 ) a regulated instantaneous torque request (m) equal to the instantaneous torque request (m d ); if said limit conditions for the speed and/or acceleration are not met, comparing ( 115 ) said reference torque request (m c ) with said instantaneous torque request (m d ); in case said instantaneous torque request (m d ) is lower than said reference torque request (m c ), determining ( 114 ) a regulated instantaneous torque request (m) equal to said instantaneous torque request (m d ); in case said instantaneous torque request (m d ) is greater than said reference torque request (m c ), generating ( 116 ) a regulated instantaneous torque request (m) equal to said reference torque request (m c ).