Abstract: The present invention related to a method for controlling a thermoregulation device for an electric vehicle power supply that is cooled by a coolant caused to flow by means for applying a flow rate of said fluid controlled by said thermoregulation device, said method comprising a step of predetermining a noise level prevalent in the passenger compartment of the vehicle, said noise level being predetermined on the bases of at least one of the following variables: engine load, engine speed, air conditioning pulser speed, or vehicle speed; and a second step of predetermining said flow rate of said coolant to be applied on the basis of the power supply battery temperature, the temperature of said coolant at the input of said battery, and said noise level predetermined during said first step. The invention can be used immediately in the automotive field.