Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MEASUREMENT DEVICE FOR ROAD SURFACE ROUGHNESS
PROBLEM TO BE SOLVED: To provide a measurement device capable of measuring road surface roughness with various types of vehicles.SOLUTION: A measurement device is provided that measures roughness of a road surface on which a vehicle with a wheel travels. The measurement device includes an acceleration deriving section that derives rotary acceleration of the wheel based on a rotary speed signal of the wheel. The measurement device further includes a roughness estimation section that calculates, as a roughness index representing roughness of the road surface, an integral gain value that is an integral value of a gain of a frequency spectrum of the rotary acceleration, or a value that represents relative magnitude of the integral gain value.SELECTED DRAWING: Figure 3
【課題】様々な車両において路面の粗さを計測することが可能な計測装置を提供する。【解決手段】車輪を有する車両が走行する路面の粗さを計測する計測装置が提供される。前記計測装置は、前記車輪の回転速度信号から前記車輪の回転加速度を導出する加速度導出部を備える。また、前記計測装置は、前記路面の粗さを表す粗さ指標として、前記回転加速度の周波数スペクトルのゲインの積分値であるゲイン積分値又は前記ゲイン積分値の大小を相対的に表す値を算出する粗さ推定部をさらに備える。【選択図】図３
MEASUREMENT DEVICE FOR ROAD SURFACE ROUGHNESS
PROBLEM TO BE SOLVED: To provide a measurement device capable of measuring road surface roughness with various types of vehicles.SOLUTION: A measurement device is provided that measures roughness of a road surface on which a vehicle with a wheel travels. The measurement device includes an acceleration deriving section that derives rotary acceleration of the wheel based on a rotary speed signal of the wheel. The measurement device further includes a roughness estimation section that calculates, as a roughness index representing roughness of the road surface, an integral gain value that is an integral value of a gain of a frequency spectrum of the rotary acceleration, or a value that represents relative magnitude of the integral gain value.SELECTED DRAWING: Figure 3
【課題】様々な車両において路面の粗さを計測することが可能な計測装置を提供する。【解決手段】車輪を有する車両が走行する路面の粗さを計測する計測装置が提供される。前記計測装置は、前記車輪の回転速度信号から前記車輪の回転加速度を導出する加速度導出部を備える。また、前記計測装置は、前記路面の粗さを表す粗さ指標として、前記回転加速度の周波数スペクトルのゲインの積分値であるゲイン積分値又は前記ゲイン積分値の大小を相対的に表す値を算出する粗さ推定部をさらに備える。【選択図】図３
MEASUREMENT DEVICE FOR ROAD SURFACE ROUGHNESS
路面粗さの計測装置
NOMURA ATSUSHI (Autor:in)
22.12.2016
Patent
Elektronische Ressource
Japanisch
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