An underbody structure of a vehicle includes a cross member, a side sill, and a gusset. The cross member is provided on a floor panel and extends in a vehicle width direction. The side sill is coupled to an outer end of the floor panel in the vehicle width direction and extends in a front-rear direction. The cross member and the side sill are separated in the vehicle width direction. The gusset is interposed between them. The gusset includes front and rear side walls, an upper wall, a protrusion, and front and rear flanges. Each side wall includes a lower end coupled to an outer end of the cross member in the vehicle width direction. The upper wall is coupled to an upper end of each side wall. The protrusion is provided at an outer end of the upper wall in the vehicle width direction.

A support plate and reinforcement member may be mounted within a hollow side sill between a rocker and crossmembers for a vehicle framework. The support plate may include flanges along either edge and a straight, projecting face between the flanges. The reinforcement member, mounted on the support plate proximate to an outer surface of the side sill, may include flanges along either edge and a wavy projecting face between the flanges. Contact portions of the projecting face for the reinforcement member may contact an interior of the side sill at regions aligned with where the side sill mounts to the crossmembers, with intervening portions of the projecting face, in areas adjacent energy absorbing crush cans, extending less far from the flanges. The intervening portions may also be laterally offset from the contact portions, to provide larger weld areas.

A reverse door ring assembly includes a door ring member of stamped metal with a generally ring shape to define an opening for a front door of a vehicle. The door ring member defines an A-pillar as a first sloping generally-upright portion extending to a roof edge and a B-pillar extending generally upright and transverse to the roof edge. The reverse door ring assembly includes an elongate member having a generally tubular shape extending along an exterior-facing side of the A-pillar of the door ring member on the door ring member. The reverse door ring assembly also includes a B-pillar outer member secured on an exterior-facing side of the B-pillar. The reverse door ring assembly also includes a front reinforcement upper-outer member mounted on an exterior-facing side of the second door ring member at a lower end of the A-pillar, together defining a Y-shaped cradle holding the A-pillar tube.

A shock absorbing member which can increase impact absorption energy and also enables thinning of a steel sheet that is a starting material, a method for producing the shock absorbing member, and a method for producing a steel sheet for cold plastic working are provided. The shock absorbing member includes a ridge portion formed in a curved shape as viewed from a longitudinal direction, and a wall portion extending from the ridge portion. In the wall portion, a ratio σ.sub.5/τ.sub.5 between a tensile stress σ.sub.5 when an elongation in a tensile test is 5% and a shear stress τ.sub.5 when a shear strain in a shear test is 5√3% is 1.70 or less, or a ratio σ.sub.10/τ.sub.10 between a tensile stress σ.sub.10 when an elongation in a tensile test is 10% and a shear stress τ.sub.10 when a shear strain in a shear test is 10√3% is 1.70 or less.

A vehicle body lower structure may comprise: a rocker arranged at a lower lateral part of a vehicle body; a power supply package arranged under a floor panel of the vehicle; a first energy absorbing member fixed to a lateral side of the power supply package; and a second energy absorbing member being adjacent to the first energy absorbing member in a vehicle-width direction of the vehicle body, the second energy absorbing member being located outside the first energy absorbing member in the vehicle-width direction of the vehicle body. The first energy absorbing member may include a first protrusion protruding outward in the vehicle-width direction, the second energy absorbing member may include a second protrusion protruding inward in the vehicle-width direction, and the first protrusion and the second protrusion may overlap each other as seen along an up-down direction and are fixed together to the rocker by a bolt.

A lower vehicle-body structure of a vehicle may include: a floor panel; a side sill; and a frame member that extends in the front-rear direction on the vehicle-width-direction inner side of the side sill and includes a front-rear extended portion that is in abutment against the side sill on the vehicle-width-direction inner side and extends in the vehicle front-rear direction along the side sill. The front-rear extended portion may include: a bottom face portion; an inner wall portion; and an inner-side flange that extends to the vehicle-width-direction inner side from a distal end portion of the inner wall portion and is joined to the floor panel. Deformation facilitating facilitators that facilitate deformation of the bottom face portion in the vehicle width direction when a collision load in the vehicle width direction is input may be formed in the bottom face portion.

A floor assembly for an electrically operable motor vehicle includes a vehicle floor, which runs on top of an energy storage device for driving the vehicle, has at least one floor element, and to which a side sill is attached on each outer side. In order to ensure that the energy storage device below the vehicle floor is protected against excessive damage in the event of a crash, in particular a side-impact crash, a first, outer, deformation zone of the floor assembly is provided in the region of the side sills, with the energy storage device being arranged at a distance from the first, outer deformation zone in the transverse direction of the vehicle so as to form a second, inner, deformation zone. The first, outer, deformation zone is deformable under a lower load level than the second, inner, deformation zone.

A sill frame arrangement for a vehicle body arrangement includes: a battery arrangement provided in a floor region of the vehicle body arrangement, which has at least one frame arrangement having frame longitudinal members and frame cross members which surround and support at least one battery module, the frame longitudinal members resting on sill elements of a sill arrangement, the sill arrangement including wall elements which form sill chambers. Over an entire height of the sill arrangement, only one wall element directed toward the frame arrangement is provided, at least one additional sill element being provided on each sill element, the sill element and the at least one additional sill element being integrally bonded and interlockingly connected to one another.

A structural reinforcement for a vehicle comprising: a) a carrier having a base wall from which a plurality of projections extend, the plurality of projections including at least one first projection and at least one second projection and the at least one first projection having a height greater than a height of the at least one second projection; b) an activatable material which is heat activatable and affixed to the carrier, configured to secure the carrier in a cavity of the vehicle; wherein in event of an impact, the at least one first projection and second projection are configured to deform toward the base wall and/or in a direction of an impact load in response to the impact load; and the at least one first projection is configured to receive the impact load and deform before the at least one second projection receives the impact load and deforms.

A vehicle body structure includes: a front pillar; a front side member located in front of the front pillar and extending in a longitudinal direction of the vehicle; a side sill connected to a bottom end of the front pillar; and a rear lower member connecting the front side member, the side sill, and the front pillar, where the rear lower member includes a front connection portion connected to a rear portion of the front side member, and a rear connection portion connected to a lower portion of the front pillar and a front portion of the side sill, and the rear connection portion includes an upper engagement wall joined to the front pillar, and a lower engagement wall joined to the side sill.