空気圧駆動サスペンションの2輪モデルの試作と基本特性

概要

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Actively controlled suspension, to improve the riding comfort and the steering stability simultaneously, have been vigorously studied. Such active suspensions are divided into two kinds ; full active suspension using the hydraulic actuator only and slow active suspension constructed from passive elements and actuators utilizing the buffering function. It is noted that pneumatic servo system has the relatively low impedance at lower frequency. Therefore, when pneumatic servo system is used as an active suspension system, the vibration caused by higher frequency disturbance transmitted through the tyre from the road surface can be isolated by its higher impedance. From such a point of view, we have already confirmed that the pneumatic servo type active suspension controlled by various control strategies gave good vibration isolation properties. It is the final purpose of this study to improve the change in the attitude concerning with the car body caused by pitching motion as well as vertical vibration isolation properties in order to put the pneumatic servo type active suspension to practical use. In this paper, we show the fabricated half car model with the pneumatic servo type active suspension and we investigate the performance of control valve which plays an important role in controlling and the properties of passive suspension system.
岡山理科大学の論文