DAMPING DEVICE FOR RAILROAD VEHICLE

To provide a damping device for a railroad vehicle capable of decreasing a cut-off frequency of a high-pass filter by improving estimation accuracy of a steady acceleration so as to improve damping performance.SOLUTION: An electronic control device 43 included in a damping device 40 for a railroad vehicle includes a steady acceleration calculation unit 50 for calculating steady acceleration αo acting on an own vehicle 1B based on acceleration αA detected by an acceleration sensor 41A that is included in a preceding vehicle 1A traveling in front of the own vehicle 1B, a vibration acceleration calculation unit 60 for calculating vibration acceleration αo of the own vehicle 1B by removing the steady acceleration αo calculated by the steady acceleration calculation unit 50 from the acceleration αB detected by the acceleration sensor 41b included in the own vehicle 1B, and a command value calculation unit 80 for calculating a damper control command value F with respect to a damper device 42 of the own vehicle 1B based on an output signal of the vibration acceleration calculation unit 60.SELECTED DRAWING: Figure 4 【課題】定常加速度の推定精度を向上させることにより、ハイパスフィルタの遮断周波数を下げることを可能にして、制振性能を向上させることができる鉄道車両用制振装置を提供すること。【解決手段】鉄道車両用制振装置４０に備わる電子制御装置４３は、自車両１Ｂより前方を走行する先行車両１Ａに備わる加速度センサ４１Ａで検出される加速度αＡに基づき、自車両１Ｂに作用する定常加速度αｏを算出する定常加速度算出部５０と、自車両１Ｂに備わる加速度センサ４１ｂで検出される加速度αＢから、定常加速度算出部５０で算出された定常加速度αｏを除去して自車両１Ｂの振動加速度αｏを算出する振動加速度算出部６０と、振動加速度算出部６０の出力信号に基づいて、自車両１Ｂのダンパ装置４２に対するダンパ制御指令値Ｆを算出する指令値算出部８０とを有する。【選択図】図４