Patent ID: 8543321

Claim:
A method for forecasting the evolution of the magnitude of a data associated to a journey of an automotive vehicle via a mathematical model and for selecting the best miming conditions for a vehicle, in an onboard computer computation system, where the magnitude is expressed by a function of at least one input parameter, comprising: defining a first model of the function used for computing the magnitude on the basis of the input parameter; running the vehicle on a reference trip, for a given time or a given distance, the input parameter and the magnitude being measured (Y M , x M ) to provide a measured value of the magnitude at least at one time during or at the end of the reference trip; computing a computed value of the magnitude by using the first model of the function and the value of the parameter measured at the running step; comparing the values of the magnitude at the at least one time measured at the running step and computed at the computation step; if the comparison of the measured value and the computed value reveals a difference greater than a predetermined difference value between the measured value and the computed value, adjusting the function in a way corresponding to a reduction of the difference between the measured value and the computed value; and selecting by onboard computation means, based on the forecasting of the magnitude of the data associated to a given journey, a road to be followed.