Patent ID: 10156484

Abstract:
An exhausted gas temperature measurement device includes a first exhausted gas temperature output portion, a second exhausted gas temperature output portion, an over-correction determining portion, and a measurement value output portion. The first exhausted gas temperature output portion outputs an uncorrected value that corresponds to an output of a temperature sensor. The second exhausted gas temperature output portion outputs a corrected value based on a response lag model. The over-correction determining portion determines, based on the uncorrected value and the corrected value, whether the over-correction occurs. The measurement value output portion outputs the corrected value as the measurement value when the over-correction determining portion does not determine that the over-correction occurs, and the measurement value output portion outputs a value different from the corrected value when the over-correction determining portion determines that the over-correction occurs. Accordingly, a deterioration of an accuracy of the measurement value due to the over-correction can be limited to a maximum extent.