PROBLEM TO BE SOLVED: To realize high-level compatibility of an effect for improving vehicular comfortability and an effect for suppressing vibration noise of a vehicle body according to inertia compensation control even under a situation where the inertia compensation control is exerted.SOLUTION: An electromagnetic suspension apparatus comprises an electromagnetic actuator 13 for generating driving power exerting reduction in vibration of a vehicle body due to driving power of an electric motor 31; a rotation angle acquiring part 41 for acquiring the rotation angle of the electric motor 31; a rotation angular acceleration calculation part for calculating the rotation angular acceleration of the electric motor 31 on the basis of the rotation angle acquired by the rotation angle acquiring part 41; an ECU 15 for driving power control including inertia compensation control of the electromagnetic actuator 13 based on the rotation angular acceleration calculated by the rotation angular acceleration calculation part; and a relative speed calculation part 43 for obtaining relative speed between a spring upper member and a spring lower member. The ECU 15 performs an adjustment where inertia compensation level due to the inertia compensation control is reduced at a range in which the relative speed exceeds a predetermined relative speed threshold rather than a range in which the relative speed is the relative speed threshold or less.SELECTED DRAWING: Figure 3
【課題】慣性補償制御が行われている際であっても、慣性補償制御に基づく車両の乗り心地を高める効果、及び、車体の振動騒音を抑制する効果を高水準で両立させる。【解決手段】電動モータ31の駆動力によって車体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、電動モータ31の回転角を取得する回転角取得部41と、回転角取得部41で取得した回転角に基づき電動モータ31の回転角加速度を算出する回転角加速度算出部と、回転角加速度算出部で算出された回転角加速度に基づく電磁アクチュエータ13の慣性補償制御を含む駆動力制御を行うECU15と、ばね上部材及びばね下部材間の相対速度を取得する相対速度算出部43と、を備える。ECU15は、相対速度が所定の相対速度閾値を超える領域では、相対速度値が相対速度閾値以下である領域に比べて慣性補償制御による慣性補償量を減少させる補正を行う。【選択図】図3
ELECTROMAGNETIC SUSPENSION APPARATUS
電磁サスペンション装置
2018-11-15
Patent
Elektronische Ressource
Japanisch
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |