| 摘要 |
The present invention relates to a device to defog a windshield. The purpose of the present invention is to more precisely determine whether a fog is generated on a windshield of a driver′s sight range or not by more precisely predicting a temperature of the windshield in the driver′s sight range by correcting the temperature of the windshield detected by a defogging sensor. To achieve this purpose of the present invention, the device to defog the windshield comprises a humidity sensor detecting the humidity of a windshield in a vehicle, and a temperature sensor detecting the temperature of the windshield in the vehicle. The temperature sensor of the device to defog the windshield installed in an upper center portion of the windshield in the vehicle comprises: a windshield temperature difference inducing factor sensor which detects inducing factors causing a temperature difference between the upper center portion of the windshield in which the temperature sensor is installed, and a driver sight range windshield portion; and a MICOM which calculates the temperature of windshield in the driver′s sight range by computing the windshield temperature difference inducing factor data input from the windshield temperature difference inducing factor sensor and the temperature of the windshield input from the temperature sensor. |
