A control device is for at least two traction engines of a railway vehicle. The control device includes an estimation module configured to estimate a traction power requirement of the rail vehicle as a function of at least one position signal of the rail vehicle, a determination module configured to determine a required operating state of each engine based on the power requirement, an adaptation module configured to determine, from the required operating state of each engine, an adapted operating state of said engine as a function of at least one specific parameter relating to the operation of the rail vehicle, and an emission module configured to emit a control signal to each engine.