To ensure high battery protection performance and load bearing performance against a side collision load with a simple structure in a vehicle body substructure in which a battery is stored under a vehicle cabin floor, as in the case of an electric vehicle.SOLUTION: A vehicle body substructure 100 comprises: a floor panel 110 that constitutes the floor surface of a vehicle cabin R; a pair of side sills 120 that extend in a vehicle front-back direction; a plurality of cross members 130 that extend in a vehicle width direction under the floor panel 110 and connect the pair of side sills 120; a side-sill reinforcement member 123 that reinforces each of the pair of side sills 120 from inside and is arranged so as to overlap the plurality of cross members 130 in a vehicle vertical direction; and a battery pack that is arranged under the floor panel 110 and between the pair of side sills 120 in the vehicle width direction.SELECTED DRAWING: Figure 2

    【課題】電動車両のように車室床下にバッテリーを格納する車体下部構造において、単純な構造で側突荷重に対する高いバッテリー保護性能および耐荷重性能を確保する。【解決手段】車体下部構造100は、車室Rの床面を構成するフロアパネル110と、車両前後方向に延びる一対のサイドシル120と、フロアパネル110の下方で車両幅方向に延びて一対のサイドシル120を接続する複数のクロスメンバ130と、一対のサイドシル120のそれぞれを内側から補強し、車両上下方向において複数のクロスメンバ130と重複して配置されたサイドシル補強材123と、フロアパネル110の下方で一対のサイドシル120の車両幅方向の間に配置されたバッテリーパックとを備える。【選択図】図2


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    Titel :

    VEHICLE BODY SUBSTRUCTURE


    Weitere Titelangaben:

    車体下部構造


    Beteiligte:
    YOSHIDA MASATOSHI (Autor:in) / SUGIMOTO AKIO (Autor:in)

    Erscheinungsdatum :

    2023-05-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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