A gear step estimation method is of estimating a gear step of a switching transmission device (30) of an electric assist bicycle (10) including a motor (M) and the switching transmission device (30) which is provided in a power transmission path between the motor (M) and a rear wheel (78) and is capable of switching the gear step among n gear steps. The gear step estimation method includes a step of acquiring, at a first time, a detected gear ratio Rd that is a gear ratio of a transmission section that is the entire or partial power transmission path including the switching transmission device (30), a step of comparing the acquired detected gear ratio Rd with n preset gear ratios Ri set within a range of possible gear ratios taken by the n gear steps, and a step of estimating the gear step of the switching transmission device (30) as an m-step in a case where the detected gear ratio Rd matches an m-th preset gear ratios Ri.


    Access

    Download


    Export, share and cite



    Title :

    GEAR STAGE ESTIMATION METHOD, GEAR STAGE ESTIMATION DEVICE, GEAR STAGE ESTIMATION PROGRAM, AND STORAGE MEDIUM


    Additional title:

    GETRIEBESTUFENSCHÄTZVERFAHREN, GETRIEBESTUFENSCHÄTZVORRICHTUNG, GETRIEBESTUFENSCHÄTZPROGRAMM UND SPEICHERMEDIUM
    PROCÉDÉ D'ESTIMATION D'ÉTAGE D'ENGRENAGE, DISPOSITIF D'ESTIMATION D'ÉTAGE D'ENGRENAGE, PROGRAMME D'ESTIMATION D'ÉTAGE D'ENGRENAGE ET SUPPORT D'ENREGISTREMENT


    Contributors:

    Publication date :

    2025-05-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



    GEAR STAGE ESTIMATION METHOD, GEAR STAGE ESTIMATION DEVICE, GEAR STAGE ESTIMATION PROGRAM, AND STORAGE MEDIUM

    HATTORI MAKOTO / SUNAMOTO MASAYUKI / NOMURA NAOKI et al. | European Patent Office | 2024

    Free access

    Gear stage estimation method, gear stage estimation device, gear stage estimation program, and storage medium

    HATTORI MAKOTO / SUNAMOTO MASAYUKI / NOMURA MASANARI et al. | European Patent Office | 2025

    Free access

    Last-stage gear assembly

    VAN DER VECHT JAN WILLEM | European Patent Office | 2024

    Free access

    Multispeed spur gear transmission with a planetary gear stage

    CHRISTIAN KUNZE / MATHIAS REMMLER | European Patent Office | 2017

    Free access