| 摘要 |
PROBLEM TO BE SOLVED: To execute correct control of favorable reliability for avoiding suction of water. SOLUTION: In this intake system, a main coarse air inflow part 10 provided with an opening 13 for intake of air, a valve 16 movably disposed in the main coarse air inflow part 10, and an auxiliary coarse air inflow part 11 having a passage part 20 disposed at a position protected to moisture are provided. The main coarse air inflow part 10 can be tightly closed by the valve 16, a moisture sensor 15 is disposed in the main coarse air inflow part 10 so that moisture invading into the main coarse air inflow part 10 can be detected, and an evaluation unit 22 connected to the moisture sensor 15 and the movable valve 16 is connected to another sensor 23 disposed outside the intake system. By the evaluation unit 22, logic can be formed by a signal of the moisture sensor 15 with a signal of the sensor 23, and the valve 16 can be controlled using the logic.
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