Faurecia Bloc Avant

Vincent Gonin

Caroline Riviere

Claude Laurent

Laurent Droz Bartholet

Julien Dufee

Abla Steinmetz

Marie-Pierre Buron

Philippe Compagnon

Laurent Droz-Bartholet

Patrick Borde

Magalie Ménard

Caroline Rivière

The energy-absorption device () for a motor vehicle that comprises: a first energy-absorption member (), in a first plastic material, provided so as to perfectly deform under the effect of an impact of given energy by absorbing a first portion of the energy of said impact; a second energy-absorption member (), in a second plastic material different from the first plastic material, provided so as to plastically deform under the effect of said impact of given energy by absorbing a second portion of the energy of said impact; the first and second energy-absorption members () being conformed so that the energy-absorption device () has a total intrusion-resisting force comprised between 75 and 200 kN, at any temperature comprised between &#x2212;30&#xb0; C. and 80&#xb0; C.

Dual-material energy-absorption device with low thermal sensitivity, front end and motor vehicle incorporating such a device

The invention relates to an energy absorption device for a motor vehicle, said device comprising a structure provided so as to plastically deform under the effect of an impact of a given energy, the structure being made of a matrix of a ductile plastic material and high-tenacity fibers embedded in the matrix, the majority of the fibers having a length of between 0.1 and 10 mm, and the material comprising between 2 and 10 wt % of high-tenacity fibers.

Energy absorption device with fibers embedded in a plastic material, and associated front face

A rear-end element () for a motor vehicle includes a carrier structural element () forming an energy-absorbing element after impact, and a carrier structural frame (). At least the carrier structural element () has a cellular structure formed of cells () extending longitudinally through the carrier structural element () between a back face and a front face of the carrier structural element () and opening onto the back and/or front face of the carrier structural element (). A rear end () which includes the rear-end element ().

Rear-end element and rear end for motor vehicle

This rear-end element () for motor vehicle includes a carrier structural element () forming an energy-absorbing element after impact, and a carrier structural frame (). At least the carrier structural element () has a cellular structure formed of cells () extending longitudinally through the carrier structural element () between a back face and a front face of the carrier structural element () and opening onto the back and/or front face of the carrier structural element (). A rear end () which includes the rear-end element ().

This bumper assembly is adapted for a motor vehicle having a structure including a pair of upper side members () and a pair of lower side members (). It includes an energy absorbing panel () having at least two columns () each provided to bear on the ends of an upper side member () and a lower side member () and a beam () extending transversely between the columns (). According to one embodiment, the bumper assembly includes a plate () doubling the beam () such that the beam () is compressed between a frontal face () of the plate () in case of impact. The device is applicable to front or rear bumpers.

Bumper assembly for motor vehicle, end portion of motor vehicle comprising such an assembly and motor vehicle

This beam () is intended to be located between a shield skin () and a front end () of a motor vehicle front assembly (), said beam () being designed to deform by absorbing energy in the event of an impact with the shield skin (), said beam () having an approximately planar front face (). The beam () comprises a rear fairing element () having a concavity () facing the front of the vehicle so as to promote a laminar flow of air from the front face () of the beam () toward the front end () of the front assembly () of the motor vehicle.

Motor vehicle front transverse beam comprising a rear fairing element

This assembly includes a plastics material structural frame () including at least a lower cross member () and vertical struts (), each of said struts () forming, over at least a portion of its height, a deformable energy absorption component (), the module further including a plastics material shield () formed so as to match the shape of a shield skin () and arranged against the structural frame (), said shield () including an upper cross member () and a lower cross member () interconnected via vertical connecting beams (). The upper () and lower () cross members and the connecting beams () include a plurality of ribs () which form cells () in the cross members () and the beams (), at least some of said cells () passing through the shield ().

Motor vehicle front-end panel assembly comprising a shield

The assembly is of the type comprising two pairs of front longitudinal members of a chassis of a motor vehicle and support and fixing mounting plates arranged at the front ends of the longitudinal members and comprising a front bumper shield comprising a one-piece plastics material frame consisting of an upper bumper beam and a lower bumper beam and two vertical members connecting the upper and lower bumper beams, the vertical members of the frame being configured to act as impact absorbers and fixed resting directly against the mounting plates.

Front assembly for a motor vehicle comprising a front bumper shield

The bumper shield for a motor vehicle comprising two main longitudinal members (), two auxiliary longitudinal members () positioned at a lower height, as well as supporting and attachment plates () positioned between the ends of the longitudinal members (), is a single integral piece in plastic material and is formed of two uprights () and an upper beam () connecting the uprights (), the uprights () being configured so as to bear upon the plates () so as to act as impact absorbers, the shield () having the shape of an H or an inverted U given by the uprights () and the upper beam ().

Bumper shield for a motor vehicle

A front shock-absorber assembly for a motor vehicle includes, at each of the right-hand and left-hand sides thereof, at least a lower longitudinal structural element () and an upper longitudinal structural element (). The shock-absorber assembly includes a high-energy impact absorption structure () which includes an elongate right-hand plate () and left-hand plate (), each plate being fixedly joined to a lower longitudinal element and an upper longitudinal element located at the same side of the vehicle; and a deformable right-hand element () and left-hand element () for absorbing medium-energy impacts, a rear surface of a deformable element moving into abutment against the majority of a front surface of an associated plate.

Shock-absorber assembly and corresponding motor vehicle

Such a distribution of the ribsmakes it possible to determine the behavior of the bumper under impact. In particular, the behavior of the bumpervaries depending on the point of impact on said bumperupon collision. The bumperaccording to the invention makes it possible to satisfy pedestrian impact standards, which are becoming ever more stringent. In particular, in the case of a pedestrian impact, provision must be made for deceleration of the pedestrian's knee, irrespective of the point of impact of the knee.

Growing community of inventors

Saint Cyr sur Loire, France

Vincent Gonin