To provide a damping device for a railroad vehicle capable of improving damping performance and prolonging the lifetime of component parts such as a pump and a motor.SOLUTION: A damping device 8 for a railroad vehicle 1 includes a damping damper 5 provided between a vehicle body 2 and a truck 3 to suppress the vibration generated in the vehicle body 2. The damping damper 5 includes a semi-active damper equipped with a cylinder 10, a pump 31 supplying a hydraulic oil to the cylinder 10, and a motor 32 for driving the pump 31. The damping device includes a damping controller 6 by that the rotation frequency of the motor 32 under such specific conditions that a supply amount of the hydraulic oil required for the cylinder 10 is smaller than a predetermined amount is controlled to be lower than that in the case where is not under the specific conditions.SELECTED DRAWING: Figure 2
【課題】制振性能の向上を図るとともに、ポンプやモータなどの構成部品の寿命の延伸を図ることができる鉄道車両の制振装置を提供する。【解決手段】本発明の一態様は、車体2に生じる振動を抑えるために当該車体2と台車3との間に設けられた制振用ダンパ5を有し、制振用ダンパ5は、シリンダ10を備えるセミアクティブダンパと、シリンダ10へ作動油を供給するポンプ31と、ポンプ31を駆動させるモータ32と、を備える鉄道車両1の制振装置8において、シリンダ10に対して必要な作動油の供給量が所定量よりも少ない特定条件下であるときに、モータ32の回転数を特定条件下でないときよりも低く制御する制振コントローラ6を有する。【選択図】 図2
DAMPING DEVICE FOR RAILROAD VEHICLE
鉄道車両の制振装置
2021-09-13
Patent
Electronic Resource
Japanese
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