| 摘要 |
PROBLEM TO BE SOLVED: To provide a temperature correction device that corrects the detected temperature with high accuracy even immediately after turning on the power supply.SOLUTION: When a power supply is turned off, an external temperature estimating unit 36 acquires a temperature correction value Os at the off time as a stop time correction value Oss. The external temperature estimating unit 36 calculates a temperature correction value Os for correcting an internal temperature Ti detected by the temperature sensor 33 in consideration of the heating value decreasing with the elapsed time t with the stop-time correction value Oss at the time when the power supply is turned off as an initial value. Thus, when the power supply is turned on again, the external temperature estimating unit 36 estimates the external temperature To by using the temperature correction value Os calculated according to the elapsed time t.SELECTED DRAWING: Figure 1 |
