To estimate the degree of irregularity of a road surface with high accuracy.SOLUTION: A road surface state estimation device includes: an acceleration sensor 11 installed in a tire; acceleration information acquisition means 12, 13, 14 for acquiring acceleration information inputted into the tire from an output of the acceleration sensor 11; storage means 15 for storing acceleration information 15M for each of road surface roughnesses set in advance; and road surface state estimation means 16 for comparing the acquired acceleration information with the acceleration information for each road surface roughness stored in the storage means 15, and estimates a state of a road surface from the output of the acceleration sensor 11.SELECTED DRAWING: Figure 1
【課題】路面の凹凸の度合いを精度よく推定する。【解決手段】タイヤ内に設置された加速度センサ11と、前記加速度センサ11の出力からタイヤに入力する加速度情報を取得する加速度情報取得手段12,13,14と、予め設定しておいた路面粗さ毎の加速度情報15Mを記憶する記憶手段15と、前記取得した加速度情報と前記記憶手段15に記憶された路面粗さ毎の加速度情報とを比較して、前記路面の状態を推定する路面状態推定手段16とを備え、前記加速度センサ11の出力から路面の状態を推定するようにした。【選択図】図1
ROAD SURFACE STATE ESTIMATION METHOD AND ROAD SURFACE STATE ESTIMATION DEVICE
路面状態推定方法及び路面状態推定装置
2019-01-17
Patent
Electronic Resource
Japanese
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