| 摘要 |
PROBLEM TO BE SOLVED: To improve sealability between a vehicle body and a door, and to reduce generation of a wind cutting sound by displacement of the door.SOLUTION: When a vehicle speed V is a set vehicle speed V1 or more when the door is closed, when pressure PUPR of an upper side air chamber reaches set pressure P1 after pressure control time T1 passes after operating an electric pump, the upper side air chamber 11UPR is sealed by closing a solenoid control valve VUPR. Further, when pressure PLWR of a lower side air chamber 11LWR reaches set pressure P2(P2>P1) after pressure control time T2 passes, the lower side air chamber 11LWR is sealed by closing a solenoid control valve VLWR. Thus, the sealability is improved, and the generation of the wind cutting sound can be reduced, by preventing deformation in the vehicle body outside direction of the door sash part periphery being relatively low in strength. |
