Abstract: The present invention relates to a method for optimizing electric energy consumption of a plurality of vehicles connected to a same electric energy supply section. The method includes a step for determining (110) a preferred driving profile of a vehicle based on a current position of the vehicle and a destination of the vehicle, each preferred driving profile including a plurality of timeslots and for each timeslot, a desired traction value and/or a desired braking value. The method further includes steps for sending (120) of the preferred driving profile to an ATS system, acquisition (130) by an ATO system of the vehicle of an optimized driving profile generated by the ATS system, and application (140) of the optimized driving profile to the driving of the vehicle.