PROBLEM TO BE SOLVED: To provide a derailment detection device and a derailment detection method, which can improve precision in detecting a single-wheel derailment.SOLUTION: A derailment determination part 112 of a derailment detection device 110 determines that a single-wheel of a railway vehicle is being derailed in a case where a vertical displacement amount d of a railway vehicle is at least a displacement amount threshold value dwhile an inclination angle θaround an axis in longitudinal direction is at least an inclination angle threshold value θ. In a case with a railway vehicle in which a vertical displacement amount d and fluctuation in inclination angle θaround an axis in longitudinal direction caused by getting on/off of a passenger and vibration while a railway vehicle traveling are large, it is difficult to precisely detect a single-wheel derailment by a determination based only on the vertical displacement amount d or the like. However, by determining a single-wheel derailment of a railway vehicle using AND condition of the vertical displacement amount d and the inclination angle θaround an axis in longitudinal direction, precision in detecting single-wheel derailment can be improved.SELECTED DRAWING: Figure 5
【課題】一輪脱線を検知する精度を向上させることができる脱線検知装置及び脱線検知方法を提供する。【解決手段】脱線検知装置110の脱線判定部112は、鉄道車両の上下方向の変位量dが変位量閾値dth以上であり、且つ前後方向の軸周りの傾斜角θrが傾斜角閾値θth以上であるときに、鉄道車両の一輪が脱線していると判定する。走行時の振動や乗客の昇降等による上下方向の変位量dや前後方向の軸周りの傾斜角θrの変動が大きい鉄道車両では、上下方向の変位量d等のみに基づく判定では、精度良く一輪脱線を検知することは難しい。しかし、上下方向の変位量dと前後方向の軸周りの傾斜角θrとのAND条件により鉄道車両の一輪脱線を判定することにより、一輪脱線を検知する精度を向上させることができる。【選択図】図5
DERAILMENT DETECTION DEVICE AND DERAILMENT DETECTION METHOD
脱線検知装置及び脱線検知方法
2016-07-25
Patent
Electronic Resource
Japanese
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