To accurately detect an occurrence of an anomaly in at least one of the acquisition of an amount of first rotating state and the acquisition of an amount of second rotating state, with a simple configuration.SOLUTION: An information processing method for an electric assist bicycle 10 includes: a transmission unit 80 provided on a power transmission path between a crank pedal 76 and a rear wheel RW; a crank 75 provided on a crank pedal 76 side of the transmission unit 80 on the power transmission path; and a rear wheel RW provided on a rear wheel RW side of the transmission unit 80 on the power transmission path. The method includes: a first acquisition step of acquiring a cadence C of the crank 75; a second acquisition step of acquiring a rear-wheel rotating speed Vr of the rear wheel RW; a calculation step of calculating a converted rear-wheel-rotating speed Vc, which is a converted value of the rear wheel RW in the rotating state, based on a change gear ratio R of the cadence C and the transmission unit 80; and a comparison step of comparing the rear-wheel rotating speed Vr and the converted rear-wheel-rotating speed Vc.SELECTED DRAWING: Figure 8

    【課題】シンプルな構成で第1回転状態量の取得及び第2回転状態量の取得の少なくとも一方に異常が発生したことを精度よく検知する。【解決手段】クランクペダル76と後輪RWとの動力伝達経路に設けられる変速部80と、動力伝達経路上の変速部80よりもクランクペダル76側に設けられたクランク75と、動力伝達経路上の変速部80よりも後輪RW側に設けられた後輪RWと、を有する電動アシスト自転車10の情報処理方法であって、クランク75のケイデンスCを取得する第1取得ステップと、後輪RWの後輪回転速度Vrを取得する第2取得ステップと、ケイデンスC及び変速部80の変速比Rに基づいて、後輪RWの回転状態の換算値である換算後輪回転速度Vcを算出する算出ステップと、後輪回転速度Vrと換算後輪回転速度Vcとを比較する比較ステップと、を有する。【選択図】図8


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    Title :

    INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, RECORDING MEDIUM, AND INFORMATION PROCESSING DEVICE


    Additional title:

    情報処理方法、情報処理プログラム、記憶媒体、及び、情報処理装置


    Contributors:

    Publication date :

    2024-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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