To provide a method for evaluating braking performance of a tire on a wet road surface at low calculation costs.SOLUTION: A braking performance evaluation method includes: a step of acquiring a tire grounding pressure distribution; a step of acquiring a sliding friction coefficient table; and a step of calculating friction force of the entire tire by using a brush model incorporating a function of expressing the grounding pressure distribution and the sliding friction coefficient table. In the braking performance evaluation method, the step of acquiring the tire grounding pressure distribution includes a step of acquiring a first grounding pressure distribution on a road surface without any water films by actual measurement or calculation, and a step of acquiring a second grounding pressure distribution by including a decrease in a grounding pressure due to a water film entering between a tire and a road surface in the first grounding pressure distribution, and setting the second grounding pressure distribution to the tire grounding pressure distribution used for the calculation.SELECTED DRAWING: Figure 7

    【課題】タイヤのWET路面での制動性能を低い計算コストで評価する方法を提供する。【解決手段】タイヤ接地圧分布を取得するステップと、滑り摩擦係数テーブルを取得するステップと、前記接地圧分布を表す関数及び前記滑り摩擦係数テーブルを組み込んだブラシモデルを用いてタイヤ全体の摩擦力を計算するステップとを含む制動性能評価方法において、前記タイヤ接地圧分布を取得するステップが、水膜のない路面における第1接地圧分布を実測又は計算により取得するステップと、タイヤと路面との間に侵入した水膜による接地圧の減少を前記第1接地圧分布に対して加味して第2接地圧分布を取得して、前記第2接地圧分布を前記計算に用いる前記タイヤ接地圧分布とするステップとを含むことを特徴とする。【選択図】図7


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    Titel :

    BRAKING PERFORMANCE EVALUATION METHOD


    Weitere Titelangaben:

    制動性能評価方法


    Beteiligte:

    Erscheinungsdatum :

    2019-06-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60C VEHICLE TYRES , Fahrzeugreifen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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