AIR RESISTANCE REDUCTION DEVICE OF VEHICLE
PROBLEM TO BE SOLVED: To provide an air resistance reduction device of a vehicle which reduces air resistance acting on a vehicle body by controlling flow of air flowing along a vehicle body using an air ejecting device and controlling a rear flow vortex generated in a vehicle rear part.SOLUTION: Ai...
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Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an air resistance reduction device of a vehicle which reduces air resistance acting on a vehicle body by controlling flow of air flowing along a vehicle body using an air ejecting device and controlling a rear flow vortex generated in a vehicle rear part.SOLUTION: Air ejecting devices (SJ actuators) 16 for ejecting air from an aperture by periodically driving an excitation part for vibrating a vibration membrane are arranged at least on upper and lower positions of the rear part of a vehicle 12, drive signals of the excitation part are determined for each actuator on the basis of the detected running state of the vehicle (20a, 20b), and the excitation part is driven on the basis of the determined drive signal (20c).
【課題】空気噴出装置を用いて車体に沿って流れる空気の流れを制御すると共に、車両後部に発生する後流渦を制御し、車体に作用する空気抵抗を低減させるようにした車両の空気抵抗低減装置を提供する。【解決手段】振動膜を振動させる加振部を周期的に駆動して開孔から空気を噴出させる空気噴出装置(SJアクチュエータ)16を車両12後部の少なくとも上下位置にそれぞれ配置し、検出された車両の走行状態に基づいて加振部の駆動信号をアクチュエータごとにそれぞれ決定する(20a,20b)と共に、決定された駆動信号に基づいて加振部を駆動する(20c)。【選択図】図5 |
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