Management device suitable for managing an electric propulsion assembly of a vehicle, the electric propulsion assembly comprising an electrical energy storage device (STOCK) and a motor suitable for propelling the vehicle entirely or partially using electrical energy stored in the electrical energy storage device, the management device comprising: - a communication interface suitable for receiving an elevation profile (h) of a predetermined route that the vehicle is intended to take, - a determination module configured to divide the route into segments (Si) based on the elevation profile, and configured to determine, based on said elevation profile, for each segment of said route, a maximum electric power (Pmax(i)) that the electrical energy storage device is configured to supply to the motor at the corresponding segment, each segment being associated with a maximum electric power, and characterized in that the management device is further configured to interact with the electric propulsion assembly such that, for each segment of the route, the electric power actually supplied by the electrical energy storage device to the motor is less than the corresponding maximum electric power, wherein the determination module is configured to: - determine, for each of the obtained segments and from the elevation profile, a type of segment among: a climbing segment, a descending segment, a flat segment, - define for the route an energy budget chosen according to the electrical energy storage device, and define for each segment a portion (E(i)) of the energy budget, - as long as the value of a combination of terms respectively associated with one of the segments and each corresponding to a product of the energy budget portion (E(i)) for the segment and a factor (Ki) chosen according to the type of the associated segment is superior to the energy budget, recalculate the value of said combination for each of one or more iterations between each of which the energy budget portion (E(i)) for each segment is reduced by a predetermined value relative to the previous iteration, until the value of the combination is less than or equal to the energy budget, and - determine the maximum electric power (Pmax(i)) of at least one segment, based on the product of the energy budget portion (E(i)) and the factor (Ki) chosen for the segment that provided the value of the combination less than or equal to the energy budget. - a communication interface suitable for receiving an elevation profile (h) of a predetermined route that the vehicle is intended to take, - a determination module configured to divide the route into segments (Si) based on the elevation profile, and configured to determine, based on said elevation profile, for each segment of said route, a maximum electric power (Pmax(i)) that the electrical energy storage device is configured to supply to the motor at the corresponding segment, each segment being associated with a maximum electric power, and characterized in that the management device is further configured to interact with the electric propulsion assembly such that, for each segment of the route, the electric power actually supplied by the electrical energy storage device to the motor is less than the corresponding maximum electric power, wherein the determination module is configured to: - determine, for each of the obtained segments and from the elevation profile, a type of segment among: a climbing segment, a descending segment, a flat segment, - define for the route an energy budget chosen according to the electrical energy storage device, and define for each segment a portion (E(i)) of the energy budget, - as long as the value of a combination of terms respectively associated with one of the segments and each corresponding to a product of the energy budget portion (E(i)) for the segment and a factor (Ki) chosen according to the type of the associated segment is superior to the energy budget, recalculate the value of said combination for each of one or more iterations between each of which the energy budget portion (E(i)) for each segment is reduced by a predetermined value relative to the previous iteration, until the value of the combination is less than or equal to the energy budget, and - determine the maximum electric power (Pmax(i)) of at least one segment, based on the product of the energy budget portion (E(i)) and the factor (Ki) chosen for the segment that provided the value of the combination less than or equal to the energy budget. - determine, for each of the obtained segments and from the elevation profile, a type of segment among: a climbing segment, a descending segment, a flat segment, - define for the route an energy budget chosen according to the electrical energy storage device, and define for each segment a portion (E(i)) of the energy budget, - as long as the value of a combination of terms respectively associated with one of the segments and each corresponding to a product of the energy budget portion (E(i)) for the segment and a factor (Ki) chosen according to the type of the associated segment is superior to the energy budget, recalculate the value of said combination for each of one or more iterations between each of which the energy budget portion (E(i)) for each segment is reduced by a predetermined value relative to the previous iteration, until the value of the combination is less than or equal to the energy budget, and - determine the maximum electric power (Pmax(i)) of at least one segment, based on the product of the energy budget portion (E(i)) and the factor (Ki) chosen for the segment that provided the value of the combination less than or equal to the energy budget.