PROBLEM TO BE SOLVED: To measure an attack angle between a trajectory and wheels on a vehicle inexpensively and safely, and without being influenced by a traveling environment, during traveling.SOLUTION: A yaw rate gyroscope 7 is attached to, for example, a shaft box 6, and on the other hand, a storage part 1 and a calculation part 8 are arranged at a vehicle body 2. The storage part 1 stores, in advance, correlation data between a traveling position L of a vehicle 3 and an azimuth angle of a tangent of a trajectory 4 at the traveling position L which have been calculated from, for example, a roadway map in advance. In the calculation part 8, an attack angle between wheels 5a and the trajectory 4 at each traveling position L is acquired from difference between an azimuth angle of the wheel which is obtained by integrating a wheel shaft yaw angle speed which is measured by the yaw rate gyroscope 7 and the azimuth angle of the tangent of the trajectory 4 which has been stored in advance. As an effect, the measurement of the attack angle can be inexpensively and safely performed without being influenced by a traveling environment.
【課題】走行中に軌道と車輪とのアタック角を、安価で、安全で、走行環境の影響を受けることなく、車上で計測する。【解決手段】ヨーレイトジャイロ7を例えば軸箱6に取り付ける一方、車体2には、記憶部1と演算部8を装備させる。記憶部1は、例えば線路図から予め算出しておいた、車両3の走行位置Lと当該走行位置Lにおける軌道4の接線の方位角との関連データを記憶させておく。演算部8では、ヨーレイトジャイロ7により計測した輪軸ヨー角速度を積分して得られる車輪の方位角、前記記憶させておいた軌道4の接線の方位角との差により、走行位置L毎の車輪5aと軌道4とのアタック角を求める。【効果】低コストで、走行環境の影響を受けず、安全にアタック角の測定を行うことができる。【選択図】図1
ON-RAIL ATTACK ANGLE MEASUREMENT METHOD OF RAILWAY VEHICLE AND DEVICE
鉄道車両の車上アタック角測定方法及び装置
2015-10-05
Patent
Electronic Resource
Japanese
IPC: | B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS |
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