A bumper assembly is provided having a flange that overlies the body of the vehicle. The flange may be a body flange extending from an elongate bumper beam or a cladding flange extending from an external cladding that covers at least a portion of the bumper beam. The flange may protect the body from wear or corrosion, and/or bridge a gap between the frame and the body of the vehicle. The assembly may also include a contact structure for contacting at least a portion of the vehicle frame, such as the hitch beam. The contact structure may resist rotation of the bumper assembly, prevent vibration of the bumper assembly against the frame, and/or support a vertical load on the bumper. In some embodiments, the assembly may be primarily mounted to the body of the vehicle, such that the bumper beam hangs from the body of the vehicle.

A vehicle structure sub-unit includes a cross-member of metal material and two crash-box modules with their front surfaces welded or glued to the rear wall of the cross-member. A reinforcing metal plate is interposed between the front surface of at least one of the two crash-box modules and the rear wall. The rear wall has a depressed flat portion in which the reinforcing plate is received, in such a way that the surface of the reinforcing plate facing the crash-box module is substantially flush with the surface of the rear wall. A depressed portion of the rear wall is located in an offset position, closer to the center of the cross-member, with respect to the crash-box module, in such a way that the reinforcing plate is in contact only with a part of the front surface of the crash-box module, the remaining part of the front surface being in direct contact with the rear wall.

A method and system of absorbing the shock force of an impact including a substance which absorbs at least part of the shock force of an impact by changing phase from a first phase to a second phase, and back to the first phase on cessation of the impact force, and a container for the substance for protecting a person from an impact injury.

A crossmember for a bumper includes an extruded profile base frame with at least two connecting areas, for attaching the crossmember to a vehicle structure, and which are set at a distance from each other along a longitudinal direction. An extruded reinforcing element is fixedly secured to a rear side of the extruded profile base frame between the at least two connecting areas. The crossmember is weight-optimized and which can be produced in a cost-effective manner.

A vehicle collision sensor includes a piezoelectric polymer film that includes a piezoelectric element deformed to generate an output voltage, and a pair of electrodes clamping the piezoelectric element from both its surfaces, at least one of the electrodes including divided pieces away from each other in a state where the at least one of the electrodes is joined to the piezoelectric element, and a conductive component that is clamped between the film and a bumper cover, which is provided on a front portion of a vehicle, or that is clamped between a fastening component, which attaches the film to the bumper cover, and the film, in a state where the film is attached to an inner surface of the bumper cover, so that the conductive component connects together the divided pieces from a side of the divided pieces, which is not joined to the piezoelectric element.

A bumper reinforcement includes a bumper reinforcement body that is disposed below a grille shutter and an impact transmission portion that is the same material as the bumper reinforcement body and is integral with the bumper reinforcement body. The bumper reinforcement body is a resin member. The impact transmission portion is configured to come into contact with a radiator support supporting a radiator at the time of collision to transmit an impact load to the radiator support.

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 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 to be arranged horizontally on a motor vehicle, the bumper beam comprising an elongate main cross member produced of a bent plate, wherein the main cross member comprises an elongate bottom portion with two elongate web portions on either side thereof, said elongate bottom portion and elongate web portions being arranged to extend horizontally, when arranged on a vehicle, over at least a first length between two spaced apart attachment sections for attaching the bumper beam to two spaced apart mounting brackets crash boxes, and wherein the web portions are arranged above and below the bottom portion to extend outwards, away from the vehicle when arranged on said vehicle. A patch is arranged along the elongate bottom portion to cover a region that extends horizontally from each attachment section and along at least a section of the first length between two spaced apart attachment sections.

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.