Provided is an electric power assist device for bicycles, which can achieve proper power assist control in response to the pedaling force without any complicated feature for detecting pedaling forces and any necessity of modification to a bicycle. The device comprises: a pedaling force estimator 154 configured to estimate a pedaling force put on each pedal of a bicycle based on a variation between average current levels I flowing in an electric motor 58 measured within a first crank rotational angle range A and a second crank rotational angle range B which is different from the first crank rotational angle range; and a crank rotational angle adjuster 152 configured to adjust the first crank rotational angle range A and the second crank rotational angle range B according to the gradient of a road on which the bicycle is traveling.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    ELECTRIC ASSISTANCE DEVICE, AND BICYCLE


    Weitere Titelangaben:

    ELEKTRISCHE ASSISTENZVORRICHTUNG UND FAHRRAD
    DISPOSITIF D'ASSISTANCE ÉLECTRIQUE ET BICYCLETTE


    Beteiligte:

    Erscheinungsdatum :

    16.08.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS



    ELECTRIC ASSISTANCE DEVICE, AND BICYCLE

    TSUKAMOTO KENJI / YOKOKAWA AYATOSHI | Europäisches Patentamt | 2021

    Freier Zugriff

    Electric assistance equipment for bicycle

    JI WENCHAO / HE JIABIN | Europäisches Patentamt | 2020

    Freier Zugriff

    Bicycle Tire Optimized for Electric Assistance

    POTIN YVES / HENNEBERT GUILLAUME | Europäisches Patentamt | 2024

    Freier Zugriff

    Assistance control system of electric bicycle

    YANG FUQIANG | Europäisches Patentamt | 2025

    Freier Zugriff

    Electric bicycle assistance controlling method and assistance controlling system

    CHEN WEN-YEN | Europäisches Patentamt | 2023

    Freier Zugriff