To appropriately derive a target load for damping vibration of a vehicle body in consideration of vehicle steering stability and ride quality.SOLUTION: An electric suspension device 11 comprises: an electromagnetic actuator 13 which generates load for damping vibration of a vehicle body of a vehicle 10; an information acquisition part 41 which acquires a stroke speed SV of an electromagnetic actuator 13 and a sprung speed BV of the vehicle 10; a target load calculation part 43 which calculates an integrated target load which integrates a damping target load and an expansion target load; and a load control part 45 which performs load control of the electromagnetic actuator 13 by use of the integrated target load. The target load calculation part 43 comprises: a determination part 73 which determines whether integrated target current related to the integrated target load is restricted or not; and a target current correction part 75 which performs, when the determination part 73 determines that the integrated target current should be restricted, correction restricting the expansion target current related to the expansion target load while keeping the damping target current related to the damping target load.SELECTED DRAWING: Figure 3
【課題】車体の振動を減衰させるための目標荷重を、車両の操縦安定性・乗り心地を考慮し適確に導出する。【解決手段】電動サスペンション装置11は、車両10の車体の振動を減衰させるための荷重を発生す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及び車両10のばね上速度BVの情報を取得する情報取得部41と、減衰目標荷重及び伸縮目標荷重を統合した統合目標荷重の演算を行う目標荷重演算部43と、統合目標荷重を用いて電磁アクチュエータ13の荷重制御を行う荷重制御部45と、を備える。目標荷重演算部43は、統合目標荷重に係る統合目標電流を制限すべきか否かに係る判定を行う判定部73と、判定部73により統合目標電流を制限すべき旨の判定が下された場合、減衰目標荷重に係る減衰目標電流を維持する一方、伸縮目標荷重に係る伸縮目標電流を制限する補正を行う目標電流補正部75と、を備える。【選択図】図3
ELECTRIC SUSPENSION DEVICE
電動サスペンション装置
2022-10-07
Patent
Electronic Resource
Japanese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |