Frontal collision energy absorption structure for vehicle

摘要

In a frontal collision energy absorption structure for a vehicle (1) including a chassis frame (9), an engine mount bracket (27) is attached to a main frame (10) of the chassis frame (9) extending in a vehicle length direction, and is, in the vehicle length direction, apart from a connection part of the main frame (10) and a suspension tower (101), a connection part of the main frame (10) and a second cross-member (12) arranged apart from the suspension tower (101) in front thereof, and a connection part of the main frame (10) and a third cross-member (13) arranged apart from the suspension tower (101) in rear thereof.

主权项

1. A frontal collision energy absorption structure for a vehicle, comprising:
a chassis frame, wherein the chassis frame includes
a pair of right and left main frames extending in a vehicle length directiona pair of suspension towers attached respectively to the main frames,a front cross-member arranged apart from the suspension tower in front thereof and a rear cross-member arranged apart from the suspension tower in rear thereof, the front and rear cross-members each connecting the main frames together, anda pair of engine mount brackets each attached to part of corresponding one of the main frames between the front and rear cross-members, each of the engine mount brackets is attached to corresponding one of the main frames so as to be apart from a connection part of the corresponding one of the main frames and corresponding one of the suspension towers, a connection part of the corresponding one of the main frames and the front cross-member, and a connection part of the corresponding one of the main frames and the rear cross-member, and at a position of each of the main frames overlapping with the rear cross-member in the vehicle length direction, a first weak part configured to facilitate deformation of the each of the main frames in the vehicle length direction upon a frontal collision of the vehicle is provided; wherein a front leg part and a rear leg part branched to be separated from each other in the vehicle length direction are provided in a lower part of each of the suspension towers, lower parts of the front and rear leg parts are attached to each of the main frames so as to be separated from each other in the vehicle length direction; and a second weak part configured to facilitate deformation of each of the main frames in the vehicle length direction upon a frontal collision of the vehicle is provided at a position of the each of the main frames between the front and rear leg parts.