PROBLEM TO BE SOLVED: To provide an active vibration isolation device capable of appropriately suppressing vibration propagated from an engine to a cabin in a vehicle that changes an engine operation state from an all cylinder operation state to a cylinder deactivation operation state.SOLUTION: An ACM-ECU 40 executes variable amplitude/phase fixing control when an all cylinder operation state is detected by an ENG vibration pattern determination function 58. Further, the ACM-ECU 40 executes variable amplitude/variable phase control having high vibration damping performance when a cylinder deactivation operation state is detected by the ENG vibration pattern determination function 58.SELECTED DRAWING: Figure 3
【課題】エンジンの運転状態を全気筒運転状態から気筒休止運転状態に切り替える車両において、エンジンから車室に伝搬する振動を好適に抑制できる能動型防振装置を提供する。【解決手段】ACM−ECU40は、ENG振動パターン判定機能58により全気筒運転状態が検知される場合には、振幅可変・位相固定制御を実行する。また、ACM−ECU40は、ENG振動パターン判定機能58により気筒休止運転状態が検知される場合には、制振効果が大きい振幅可変・位相可変制御を実行する。【選択図】図3
ACTIVE VIBRATION ISOLATION DEVICE
能動型防振装置
2018-04-05
Patent
Electronic Resource
Japanese
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