The invention aims to provide a front longitudinal beam front structure adapting to a small offset collision to increase the transmission path of collision energy so as to improve the performance in 25% small offset collision and MPDB collision test working conditions and protect the safety of passengers. The front longitudinal beam front structure adapting to the small offset impact comprises a front longitudinal beam, a widening structure is arranged on the front portion of the front longitudinal beam, and the widening structure extends towards the direction of the outer side of an automobile so as to cover an automobile wheel cover or the area in front of the automobile wheel cover and an automobile wheel cover side reinforcing beam outer plate. The rear end of the widened structure isfixedly connected with the front end of the automobile wheel cover assembly and the front end of the automobile wheel cover side reinforcing beam outer plate. The widened structure is arranged on thefront portion of the front longitudinal beam, the Y-direction cross section of the front portion of the front longitudinal beam is increased, the front longitudinal beam is connected with the wheel cover assembly and the wheel cover side reinforcing beam, the front longitudinal beam can participate in the deformation energy absorption process in the 25% small offset collision process, and meanwhile the Y-direction coincidence area of the front longitudinal beam and a wall barrier can be increased in the MPDB collision test working condition.

    本发明的目的是提出一种适应小偏置碰的前纵梁前部结构,以增加碰撞能量的传递路径,从而改善在25%小偏置碰和MPDB碰撞试验工况中的表现,保护乘员安全。本发明的适应小偏置碰的前纵梁前部结构包括前纵梁,所述前纵梁的前部设有加宽结构,所述加宽结构向车外侧方向延伸以覆盖汽车轮罩或者汽车轮罩与汽车轮罩侧加强梁外板的前方区域;加宽结构的后端分别与汽车轮罩总成的前端、汽车轮罩侧加强梁外板的前端固定连接。本发明通过在前纵梁前部设置加宽结构,增加了前纵梁前部的Y向截面以及前纵梁与轮罩总成、轮罩侧加强梁的连接,让前纵梁在25%小偏置碰撞过程中能参与到变形吸能过程中,同时在MPDB碰撞试验工况中可增加与壁障的Y向重合面积。


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    Title :

    Front longitudinal beam front structure suitable for small offset collision


    Additional title:

    一种适应小偏置碰的前纵梁前部结构


    Contributors:
    WEI QINGHUA (author) / CHEN XIAOQIN (author) / LI CHENG (author)

    Publication date :

    2021-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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