Method and system for correcting a temperature measurement signal

A method of correcting a temperature measurement signal delivered by a sensor, the method comprising:

• digitally modelling the temperature measured by the sensor by using a modeled signal;
• estimating a lag error signal for the sensor from the modeled signal and a signal obtained by filtering the modeled signal, the filter having as a parameter an estimate of a time constant of the sensor;
• and
• correcting the measurement signal delivered by the sensor by the estimated lag error signal;
• wherein the time constant of the sensor is estimated as a function of time from the measurement signal and the modeled signal.

A system for correcting a temperature measurement signal delivered by a sensor, the system comprising:

• means for digitally modelling the temperature measured by the sensor by using a modeled signal;
• means for estimating a time constant of the sensor;
• means for filtering the modeled signal, having as a parameter the estimated time constant of the sensor;
• means for estimating a lag error signal for the sensor from the modeled signal and filtered signal from the means for filtering;
• and
• means for correcting the measurement signal delivered by the sensor using the estimated lag error signal;
• wherein the means for estimating the time constant of the sensor estimates the time constant as a function of time from the measurement signal and the modeled signal.