To provide an electric power suspension device capable of enhancing flat ride performance of a vehicle.SOLUTION: An electric power suspension device comprises an amplitude rate computation part which calculates an amplitude rate of a low frequency of a road surface input signal before a vehicle and a higher frequency before passing a road surface as an object of the road surface input signal. A load control part compares the amplitude ratio with a first threshold to set, by an electromagnetic actuator, attenuation force of vibration of a vehicle higher when determining that the low frequency is superior than before, and also compares the amplitude ratio with a second threshold to set the attenuation force lower when determining that a high frequency is superior than when determining that the low frequency is superior.SELECTED DRAWING: Figure 4

    【課題】車両のフラットライド性能を高めることができる電動サスペンション装置を提供する。【解決手段】車両前方の路面入力信号の低周波とこれより高周波の振幅割合を路面入力信号の対象である路面通過前に算出する振幅割合演算部を備えている。荷重制御部は、振幅割合を第1の閾値と比較することで低周波が優勢と判断する場合、電磁アクチュエータにより車両の振動の減衰力をそれ以前よりも高く設定し、振幅割合を第2の閾値と比較することで高周波が優勢と判断する場合、低周波が優勢と判断する場合よりも前記減衰力を低く設定する。【選択図】図4


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    Title :

    ELECTRIC POWER SUSPENSION DEVICE


    Additional title:

    電動サスペンション装置


    Contributors:
    KANDA TATSUMA (author) / GOTO YUYA (author) / KOYAMA AKIRA (author)

    Publication date :

    2022-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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