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
VEHICLE BODY SUBSTRUCTURE
車体下部構造
2023-05-25
Patent
Elektronische Ressource
Japanisch