A bumper assembly includes a bumper beam and a fin supported by the bumper beam. The fin extends along an axis from a proximate end proximate to the bumper beam to a distal end distal to the bumper beam. The fin has a sinuous cross section and a thickness each normal to the axis. The thickness at the distal end is less than the thickness at the proximate end.

A vehicle side rail system is for use with a vehicle, such as a truck, having an elevated chassis and having a longitudinally extending frame member. The side rail system includes a pair of support members mounted to the frame member and extending transverse to the frame member. The support members have a plurality of openings extending therethrough. The system includes a pair of legs, each leg having a mounting portion and a depending rail portion. The mounting portions have a plurality of openings therethrough and the mounting portions are telescopically mounted to a respective support member and selectively mountable thereto. Each rail portion has a plurality of openings. Fasteners are insertable into aligned openings of respective mounting portions and support members to secure the legs to the support members at a desired location. At least one rail extends between and mounted to the rail portions. The rail is selectively mountable to the rail portions.

A bumper beam of a vehicle body structure (1) is provided with a laterally extending laterally middle part (55) and a pair of end parts (56) each extending from a corresponding lateral end of the middle part in an outboard direction with a certain inward slant with respect to a fore and aft direction, and each end part curves at a laterally middle point thereof so as to have a concave side facing outward with respect to the fore and aft direction.

A bumper beam includes an outer portion and an inner portion each extending between a top end and a bottom end. At least one of the outer portion or the inner portion includes a pair of geometrical features each of which are disposed in spaced relationship to one another and adjacent a respective one of the top or bottom ends. A top wall and a bottom wall each extend from one of the geometrical features to the other of the outer portion or the inner portion to interconnect the outer and inner portions of the bumper beam. The geometrical features can be varied in size and shape to change and tune the energy absorption properties of the bumper beam and ultimately provide for a bumper beam that is adaptable and flexible over a range of vehicle applications.

A bumper assembly includes a bumper beam and a fin supported by the bumper beam. The fin extends along an axis from a proximate end proximate to the bumper beam to a distal end distal to the bumper beam. The fin has a sinuous cross section and a thickness each normal to the axis. The thickness at the distal end is less than the thickness at the proximate end.

A vehicle comprising: at least one electric motor configured for driving the vehicle; a battery pack configured to supply the electric motor with electric power for driving the vehicle; a vehicle body frame structure configured to form a main supporting structure of the vehicle; and a collision energy absorbing system configured to absorb collision energy in the event of an accident. The collision energy absorbing system comprises a first absorbing structure that is positioned between the battery pack and a front of the vehicle, wherein the first absorbing structure is configured to, in case the vehicle is subject to a head-on collision with an object, act against the object and absorb all or most of a collision energy of the battery pack without transferring the battery pack collision energy to the vehicle body frame structure.

An impact structure for attenuating longitudinally-directed vehicle impacts, comprising first and second attenuation plates, where the plates are spaced apart from each other at a mounting region of the impact structure and fixed to each other at an impact region of the impact structure, and the impact region is longitudinally distal from the mounting region. There is an aperture pattern on each attenuation plate, wherein each aperture of the aperture pattern on each attenuation plate has an aspect ratio defined by the maximum size of the aperture in the longitudinal direction divided by the maximum size of the aperture in the direction perpendicular to the longitudinal direction; and the aspect ratio of the apertures of the aperture pattern on each attenuation plate generally increases or decreases in the longitudinal direction between the mounting region and the impact region.

A bumper beam for a vehicle including a bumper beam body having a tubular portion extending in a vehicle width direction, the bumper beam having a metal section and a composite section, wherein the metal section and the composite section are coaxial, the composite portion being along an inner surface of the metal section.

An automobile underbody structure includes: a plurality of first frame parts; a second frame part; and an impact absorbing member, wherein: the second frame part has a first wall portion and a second wall; the impact absorbing member includes a first beam portion, a second beam portion, and a corrugated plate portion; the corrugated plate portion includes a first diagonal portion, a second diagonal portion, a first top portion, and a second top portion; and the corrugated plate portion is provided in at least respective regions, in the second frame part, to which the two adjacent first frame parts are connected.

A vehicle front structure includes a first bumper reinforcement, a pair of right and left front side members respectively disposed on a vehicle rear side of outer portions of the first bumper reinforcement in a vehicle width direction, an apron upper member, a first crash box interposed between the first bumper reinforcement and the front side member, a cross member coupling together front ends of the pair of right and left front side members in the vehicle width direction, and a high-voltage component disposed on the vehicle rear side of and at a distance from the cross member. The first crash box is configured to undergo compressive deformation when a load equal to or larger than a predetermined value is input from the first bumper reinforcement.