| 摘要 |
PURPOSE:To prevent a front window from being clouded, by installing an on-off door in a demist-defrost supply opening, and constituting this door so as to be opened with output of a rainfall-snowfall detector. CONSTITUTION:A raindrop signal SS5 out of a raindrop sensor 42 and a signal SS6 out of a windshield wiper switch 43 are all inputted in an operation control unit 40 via an analog-to-digital converter 38. This control unit 4 judges of whether there is rainfall or snowfall or not from these signals SS5 and SS6. And, it outputs a signal CC, driving a demist-defrost door 18C via a blowoff mode selector actuator 24, and opens a demist-defrost supply opening C. With this constitution, a front window is preventable from being clouded. |
