A torque distribution method for four-wheel drive of an electric vehicle, and a system and a vehicle. The method comprises: acquiring the total demanded torque of a whole vehicle; determining a demand state of the whole vehicle according to traveling parameter information, and outputting a front and rear axle torque distribution coefficient corresponding to the demand state of the whole vehicle, wherein the demand state comprises the highest driving efficiency; and outputting a front and rear axle torque distribution coefficient corresponding to the demand state of the whole vehicle comprises: obtaining a first front and rear axle torque distribution coefficient according to a mathematical model of front and rear axle driving force when front and rear wheels slip simultaneously, and according to the total demanded torque of the whole vehicle; obtaining the front and rear axle torque distribution coefficient according to the first front and rear axle torque distribution coefficient; and obtaining target torque of front and rear driving system according to the front and rear axle torque distribution coefficient and the total demanded torque of the whole vehicle. By means of the torque distribution method for four-wheel drive of the electric vehicle, the best road adhesion performance and the highest driving efficiency of a vehicle can be realized.


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    Title :

    TORQUE DISTRIBUTION METHOD FOR FOUR-WHEEL DRIVE OF ELECTRIC VEHICLE, AND SYSTEM AND VEHICLE


    Additional title:

    DREHMOMENTVERTEILUNGSVERFAHREN FÜR VIERRADANTRIEB EINES ELEKTROFAHRZEUGS SOWIE SYSTEM UND FAHRZEUG
    PROCÉDÉ DE DISTRIBUTION DE COUPLE POUR ENTRAÎNEMENT À QUATRE ROUES D'UN VÉHICULE ÉLECTRIQUE, ET SYSTÈME ET VÉHICULE


    Contributors:
    HU BENBO (author) / ZHANG DANG (author)

    Publication date :

    2024-07-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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    HU BENBO / ZHANG DANG | European Patent Office | 2023

    Free access