To inhibit a heat damage stemming from a high-temperature exhaust which flows along an exhaust pipe, while ensuring a height position above the ground of a tunnel brace in the event that a vehicle understructure includes the exhaust pipe having an inclined part.SOLUTION: A vehicle understructure includes: a floor tunnel 18 that opens on a downward side of a vehicle on a body floor 16 and extends in a vehicular fore-and-aft direction; and an exhaust pipe that is disposed in the floor tunnel 18 along the vehicular fore-and-aft direction and has an inclined part 50 inclined backward and downward on a rear side of the floor tunnel 18. Further, the vehicle understructure includes a tunnel brace 24 that separates from the inclined part 50 in a vehicle vertical direction, extends in a vehicle width direction across an opening of the floor tunnel 18, and is fixed to the body floor 16. The tunnel brace 24 has an inclined surface 28 opposed to the inclined part 50.SELECTED DRAWING: Figure 6

    【課題】車両下部構造において、傾斜部を有する排気管を有する場合に、トンネルブレースの地上高さ位置を確保しながら、排気管を流れる高温の排気による熱害を抑制することである。【解決手段】車両下部構造は、ボデイフロア16において車両下方側に開口して車両前後方向に延伸しているフロアトンネル18と、車両前後方向に沿ってフロアトンネル18内に配置され、フロアトンネル18の後方側で後方下方側に傾斜する傾斜部50を有する排気管を備える。さらに、傾斜部50に対し車両上下方向に離間しながらフロアトンネル18の開口を跨いで車両幅方向に延伸しボデイフロア16に固定されているトンネルブレース24を備える。そして、トンネルブレース24は、傾斜部50に向かい合う傾斜面28を有している。【選択図】図6


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    Title :

    VEHICLE UNDERSTRUCTURE


    Additional title:

    車両下部構造


    Contributors:

    Publication date :

    2020-07-02


    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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