To estimate the characteristic of a vehicle's suspension.SOLUTION: An information processing device 101 acquires, for each section which the same vehicle has traveled multiple times within a prescribed period, time-series data that indicates a temporal change of vertical acceleration of the vehicle's room having been measured in each of multiple travels. The information processing device 101 calculates, using a function G, for each of multiple combinations of spring resonance frequency and attenuation coefficient, and for each travel corresponding to the acquired time-series data, a deviation of road height at each position in a section from the time-series data. The information processing device 101 specifies, on the basis of the result of having compared the calculated deviations of road height at each position in the section between different travels among the plurality of travels, a combination, among the plurality of combinations, of which the difference in road height deviation between travels is minimum. The information processing device 101 determines the spring resonance frequency and attenuation coefficient of the vehicle from the specified combination.SELECTED DRAWING: Figure 1

    【課題】車両のサスペンションの特性を推定すること。【解決手段】情報処理装置101は、所定期間内に同じ車両が複数回走行した区間について、複数回の走行それぞれで測定された車両の居室の垂直加速度の時間変化を示す時系列データをそれぞれ取得する。情報処理装置101は、関数Gを用いて、バネ共振周波数と減衰係数との複数通りの組み合わせそれぞれについて、取得した時系列データに対応する走行ごとに、当該時系列データから区間内の各位置における道路の高さ偏差を算出する。情報処理装置101は、算出した区間内の各位置における道路の高さ偏差を、複数回の走行のうちの異なる走行間で比較した結果に基づいて、複数通りの組み合わせのうち、走行間の道路の高さ偏差の差が最小となる組み合わせを特定する。情報処理装置101は、特定した組み合わせから、車両のバネ共振周波数と減衰係数とを決定する。【選択図】図1


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    Title :

    CHARACTERISTIC CALCULATION PROGRAM, CHARACTERISTIC CALCULATION METHOD, AND INFORMATION PROCESSING SYSTEM


    Additional title:

    特性算出プログラム、特性算出方法および情報処理システム


    Contributors:

    Publication date :

    2021-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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