高さ調整弁のモデル化にあたりLV4については，ばねrn初圧を考慮することにより，空気ばねが緩やかに変化すrnる場合には動作遅れ時間が0となり、遅れ時間を持たずrnに動作する現実の応答を再現することができた。一方，rnLV7については，空気の流量を空気ばね変位の関数としrnたモデルとし，微少流量帯での流量を表現するモデルとrnした。%Two types of leveling valves, with time lag and with throttled air flow, have prevailed for the air spring system in Japan. When investigating the dynamics of vehicle on curve, for the former, the time lag has treated as the first order lag mechanism, but for the latter nobody investigated the dynamics of vehicle on curve using these characteristics. Therefore, we created dynamic models of two types of leveling valves. This paper reports on the result of comparative study regarding the influence of the characteristic on the dynamics of vehicle using two models of leveling valves.
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