To appropriately suppress vibration in the vicinity of a system resonance point while maintaining good ride comfort of a vehicle 10.SOLUTION: An electric suspension device includes: an electromagnetic actuator 13 generating driving force related to vibration damping of a vehicle; an information acquisition section 43 acquiring information on stroke speed SV of the electromagnetic actuator 13; a damping force calculation section 45 calculating target damping force of the electromagnetic actuator 13 on the basis of the information on the stroke speed SV acquired by the information acquisition section 43; and a drive control section 49 performing drive control of the electromagnetic actuator 13 by using the target driving force based on the target damping force calculated by the damping force calculation section 45. The damping force calculation section 45 performs frequency shaping for suppressing a low-frequency component of the stroke speed SV, calculates correction damping force on the basis of information on stroke speed SV_afs after the frequency shaping, and corrects the target damping force by using the calculated correction damping force.SELECTED DRAWING: Figure 3

    【課題】車両10の乗り心地を良好に保ちながら、システム共振点付近の振動を適切に抑制する。【解決手段】車両の振動減衰に係る駆動力を発生させる電磁アクチュエータ13と、電磁アクチュエータ13のストローク速度SVの情報を取得する情報取得部43と、情報取得部43で取得したストローク速度SVの情報に基づいて電磁アクチュエータ13の目標減衰力を算出する減衰力算出部45と、減衰力算出部45で算出した目標減衰力に基づく目標駆動力を用いて電磁アクチュエータ13の駆動制御を行う駆動制御部49と、を備える。減衰力算出部45は、ストローク速度SVのうちの低周波成分を抑制する周波数整形を行い、当該周波数整形後のストローク速度SV_afsの情報に基づいて補正減衰力を算出し、算出した補正減衰力を用いて目標減衰力の補正を行う。【選択図】図3


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    Title :

    ELECTRIC SUSPENSION DEVICE


    Additional title:

    電動サスペンション装置


    Contributors:

    Publication date :

    2020-10-22


    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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