Provided is an electric power assist system (51) that generates an appropriate level of assist power while a vehicle is running on a slope. The electric power assist system usable for an electric assist vehicle (1) includes: an electric motor (53) generating assist power to assist human power of a rider of the electric assist vehicle; a control device (170) controlling a magnitude of the assist power to be generated by the electric motor; and an acceleration sensor (38) outputting an acceleration signal representing an acceleration Gx in a travel direction of the electric assist vehicle. The control device acquires speed information representing a running speed of the electric assist vehicle based on an external signal, detects an inclination angle of a road surface based on the speed information and the acceleration signal, and causes the electric motor to generate assist power of a magnitude in accordance with the inclination angle.


    Access

    Download


    Export, share and cite



    Title :

    ELECTRIC ASSIST SYSTEM AND ELECTRIC ASSIST VEHICLE


    Additional title:

    ELEKTRISCHES ASSISTENZSYSTEM UND ELEKTRISCHES ASSISTENZFAHRZEUG
    SYSTÈME D'ASSISTANCE ÉLECTRIQUE ET VÉHICULE D'ASSISTANCE ÉLECTRIQUE


    Contributors:

    Publication date :

    2023-04-26


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS



    ELECTRIC ASSIST SYSTEM AND ELECTRIC ASSIST VEHICLE

    HASUMI MITSUHARU | European Patent Office | 2019

    Free access

    Electric assist system and electric assist vehicle

    HASUMI MITSUHARU | European Patent Office | 2023

    Free access

    ELECTRIC ASSIST SYSTEM AND ELECTRIC ASSIST VEHICLE

    HASUMI MITSUHARU | European Patent Office | 2018

    Free access

    Electric assist system and electric assist vehicle

    HASUMI MITSUHARU | European Patent Office | 2022

    Free access

    Electric assist system and electric assist vehicle

    HASUMI MITSUHARU | European Patent Office | 2021

    Free access