To provide a vehicle substructure capable of reducing the amount of deformation of a vehicle body and improving vehicle reliability by suppressing the occurrence of rotation of a battery pack at the time of side collision and obtaining excellent absorption characteristics of side collision energy while maintaining the appearance and aerodynamic characteristics of a vehicle using a simple configuration.SOLUTION: A vehicle substructure 1 comprises a floor cross member 10, a rocker 20 fastened to an end of the floor cross member 10 in a vehicle width direction, a battery pack 30 provided on the lower side of the floor cross member 10, and a load transmission part 50 provided between the floor cross member 10 and a battery pack inner cross 34 of the battery pack 30 in a vertical direction. The load transmission part 50 has a first load transmission member 51 fastened to the battery pack inner cross 34, and a second load transmission member 52 fastened to the floor cross member 10. The first load transmission member 51 and the second load transmission member 52 are provided so as to face each other in the vehicle width direction.SELECTED DRAWING: Figure 1

    【課題】簡易な構成を用いて、車両外観性及び空力特性を維持しつつ、側突時に電池パック回転の発生を抑制し、良好な側突エネルギーの吸収特性を得ることで、車両ボデーの変形量を低減し、車両信頼性の向上を実現できる車両下部構造を提供する。【解決手段】車両下部構造1は、フロアクロスメンバ10と、フロアクロスメンバ10の車幅方向の端部に締結されたロッカ20とフロアクロスメンバ10の下方側に設けられた電池パック30と、フロアクロスメンバ10と電池パック30の電池パック内クロス34との上下方向の間に設けられた荷重伝達部50とを備え、荷重伝達部50は、電池パック内クロス34に締結された第1荷重伝達部材51と、フロアクロスメンバ10に締結された第2荷重伝達部材52とを有し、第1荷重伝達部材51及び第2荷重伝達部材52は、車幅方向にて互いに対向するように設けられている。【選択図】図1


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    Title :

    VEHICLE SUBSTRUCTURE


    Additional title:

    車両下部構造


    Contributors:

    Publication date :

    2021-08-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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