To provide a track shape data estimation method and a track shape data estimation system capable of calculating track shape data of a designated section by actually traveling on a track in the section as a creation object of track shape data without using design values of the track shape.SOLUTION: A track shape data estimation method includes: a pendulum inclination angular velocity acquisition step of acquiring a pendulum inclination angular velocity for each truck; a pendulum inclination angular velocity difference calculation step of calculating a difference between pendulum inclination angular velocities of preceding and succeeding trucks; a correction value calculation step of calculating a correction value by multiplying the difference between the pendulum inclination angular velocities by a predetermined coefficient; a correction vehicle body yaw angular velocity calculation step of calculating a correction vehicle body yaw angular velocity by subtracting the correction value from the vehicle body yaw angular velocity; a track curvature equivalent value calculation step of calculating a track curvature equivalent value from the correction vehicle body yaw angular velocity and a traveling speed; and a cant equivalent value calculation step of calculating a cant equivalent value from the correction vehicle body yaw angular velocity, the traveling speed, and a truck frame lateral acceleration.SELECTED DRAWING: Figure 4
【課題】線路形状の設計値を用いる事なく、線路形状データの作成対象とする区間の線路上を実際に走行することで、当該区間の線路形状データを算出することができる線路形状データ推定方法及び線形データ線路形状システムを提供する。【解決手段】台車ごとの振子傾斜角速度を取得する振子傾斜角速度取得工程と、前後の台車の前記振子傾斜角速度の差を算出する振子傾斜角速度差算出工程と、振子傾斜角速度の差に所定の係数を乗じて補正値を算出する補正値算出工程と、車体ヨー角速度から補正値を減算して補正車体ヨー角速度を算出する補正車体ヨー角速度算出工程とを有し、補正車体ヨー角速度及び走行速度から線路曲率相当値を算出する線路曲率相当値算出工程と、補正車体ヨー角速度、走行速度及び台車枠左右加速度からカント相当値を算出するカント相当値算出工程とを有する。【選択図】図4
TRACK SHAPE DATA ESTIMATION METHOD AND TRACK SHAPE DATA ESTIMATION SYSTEM
線路形状データ推定方法及び線路形状データ推定システム
2022-01-19
Patent
Electronic Resource
Japanese
IPC: | B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES |
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