To solve the problem that a conventional active suspension requires a hydraulic pump and complicated hydraulic piping for a hydraulic pressure for vehicle height control and has a problem of cost increase and a problem of energy consumption for driving the hydraulic pump, and that a conventional semi-active suspension for controlling damping force requires a control mechanism of a special structure for controlling the damping force.SOLUTION: An active suspension device for a vehicle is configured to: separate an accumulator which absorbs oil quantity change by expansion and contraction of a rod of a shock absorber; connect an actuator and/or an accumulator through a connection cover provided with a solenoid valve on the shock absorber; integrally form all hydraulic circuits by using the connection cover as a hydraulic manifold block to eliminate need for tubular hydraulic piping; and complete the hydraulic circuit in each axle in a simple structure. Since an action utilizes a hydraulic pressure generated by the expansion and contraction of the rod of the shock absorber expanded and contracted by vibration during traveling, neither a hydraulic pump nor its driving energy consumption is required.SELECTED DRAWING: Figure 1
【課題】従来のアクティブサスペンションは、車高制御の油圧用に、油圧ポンプ、複雑な油圧配管が必要で、コストアップと油圧ポンプを駆動するエネルギ消費の問題があり、従来の減衰力を制御するセミアクティブサスペンションは、減衰力を制御する特殊な構造の制御機構が必要である。【解決手段】ショックアブソーバのロッドの伸縮による油量変動を吸収するアキュムレータを分離し、ショックアブソーバの上に電磁弁を備えた連結カバを介してアクチュエータおよび/またはアキュムレータを連結し、前記連結カバを油圧マニホールドブロックとして全ての油圧回路を集約形成して管状の油圧配管を不要とし、各車軸で油圧回路を簡素な構造に完結する。作用は、走行中の振動により伸縮するショックアブソーバのロッドの伸縮で発生する油圧を利用するので、油圧ポンプもその駆動エネルギ消費も不要である。【選択図】 図1
ACTIVE SUSPENSION DEVICE FOR VEHICLE
車両用アクティブサスペンション装置
2023-11-02
Patent
Electronic Resource
Japanese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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