# US 11,897,404 B2 · Bumper reinforcement for integration into a vehicle front assembly, comprising a sensor-bearing mounting plate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,897,404 B2 - Document ID: US11897404B2 - Status: Granted - Kind: B2 - Application number: 17/285,394 - Filed: 2019-09-30 - Published: 2022-03-03 - Granted: 2024-02-13 - Earliest claimed: 2018-10-18 - Assignees: Compagnie Plastic Omnium - Applicants: Compagnie Plastic Omnium - Inventors: Stéphane Ginja - Web page: https://patentgrep.com/patent/US11897404B2 ## CPC - B60R 19/18: {characterised by the cross-section;} Means within the bumper to absorb impact - B60R 19/03: characterised by material, e.g. composite (B60R19/18 takes precedence) - B60R 19/483: {with obstacle sensors of electric or electronic type} - B60R 2019/1833: {made of plastic material} - G01S 7/4813: {Housing arrangements} - G01S 17/931: of land vehicles - G01S 2013/93271: {in the front of the vehicles} - G01S 2013/93275: {in the bumper area} - G01S 2015/938: {in the bumper area} - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract Bumper reinforcement produced by molding a thermoplastic material and intended to be integrated into a motor vehicle front assembly between a bumper and a technical part. The bumper reinforcement comprises at least one mounting plate that is intended to bear at least one sensor, said mounting plate being integrally formed with said bumper reinforcement and connected by its perimeter thereto via a fragile material bridge such that, in the event of a frontal impact resulting in deformation of the bumper reinforcement and impacting the mounting plate, the mounting plate detaches fully or partially from the bumper reinforcement under the effect of the rupture of the material bridge. ## Claims ### Claim 1 A bumper reinforcement that is produced by molding a thermoplastic material and intended to be integrated into a front assembly for a motor vehicle between a bumper and a technical part, characterized in that the bumper reinforcement comprises at least one mounting plate for supporting at least one sensor, is integral with said bumper reinforcement, and is linked by its perimeter to bumper reinforcement by a fragile material bridge, wherein the material bridge extends in a direction perpendicular to a plane of the mounting plate, and wherein a rear face of the mounting plate is coplanar with a front face of the bumper reinforcement. ### Claim 2 (depends on 1) The bumper reinforcement according to claim 1, wherein the material bridge is formed by an alternation of at least one first zone (Z1), in which the material bridge has a thickness (e1) that is less than or equal to the thickness (ep) of a wall of the mounting plate and greater than or equal to an intermediate thickness (e1) that is strictly less than the thickness (ep) of the wall of said mounting plate (ei≤ei≤ep), and at least one second zone (Z2) in which the material bridge has a thickness (e2) that is less than or equal to the intermediate thickness (ei) and greater than or equal to zero thickness (0≤e2≤ei). ### Claim 3 (depends on 2) The bumper reinforcement according to claim 2, wherein the intermediate thickness (ei) is between 0.3 mm and 0.8 mm. ### Claim 4 (depends on 2) The bumper reinforcement according to claim 2, wherein the thickness (ep) of the wall of the mounting plate is between 2 and 5 mm. ### Claim 5 (depends on 4) The bumper reinforcement according to claim 4, wherein the thickness (ep) of the wall of the mounting plate is substantially equal to the thickness of the wall of the bumper reinforcement. ### Claim 6 (depends on 1) The bumper reinforcement according to claim 1, wherein the material bridge comprises a single first hinge zone (Z1c) and a second zone (Z2) extending over the rest of the perimeter of the mounting plate. ### Claim 7 (depends on 6) The bumper reinforcement according to claim 6, wherein the first zones (Z1) and the second zones Z2) extend over substantially equal lengths. ### Claim 8 (depends on 1) The bumper reinforcement according to claim 1, wherein the material bridge extends on the plane of the mounting plate. ### Claim 9 (depends on 1) The bumper reinforcement according to claim 1, wherein said bumper reinforcement is preferably formed by molding a material that is selected from among the following materials: polypropylene (PP), polyethylene (PE), polyamide (PA), polycarbonate (PC), polybutylene terephthalate (PC-PBT). ### Claim 10 (depends on 9) The bumper reinforcement according to claim 9, wherein the material forming the bumper reinforcement is reinforced with mineral fillers or with glass or carbon fibers. ### Claim 11 (depends on 1) The bumper reinforcement according to claim 1, wherein a mounting plate supports at least one sensor that is selected from among the following sensors: a lidar, a radar or a parking aid camera, a night vision camera, a distance regulation radar, a parking assistance proximity sensor. ### Claim 12 (depends on 1) The bumper reinforcement according to claim 1, wherein said bumper reinforcement is adapted to support air intake devices, a bumper skin, a guide air, an optical element, a battery charger, and/or an electronic control unit. ### Claim 13 (depends on 1) The bumper reinforcement according to claim 1, that is overmolded on a structural part comprising at least one of the following elements: an impact beam, a shock absorber, a pedestrian impact protection system. ### Claim 14 A bumper reinforcement that is produced by molding a thermoplastic material and intended to be integrated into a front assembly for a motor vehicle between a bumper and a technical part, characterized in that the bumper reinforcement comprises at least one mounting plate for supporting at least one sensor, is integral with said bumper reinforcement, and is linked by its perimeter to said bumper reinforcement by means of a fragile material bridge, wherein the material bridge is formed by an alternation of at least one first zone (Z1), in which the material bridge has a thickness (e1) that is less than or equal to the thickness (ep) of a wall of the mounting plate and greater than or equal to an intermediate thickness (ei) that is strictly less than the thickness (ep) of the wall of said mounting plate (ei≤e1≤ep), and at least one second zone (Z2) in which the material bridge has a thickness (e2) that is less than or equal to the intermediate thickness (ei) and greater than or equal to zero thickness (0≤e2≤ei), wherein the material bridge comprises at least one first hinge zone (Z1c) in which a thickness of the material bridge is equal to a thickness (ep) of the wall of the mounting plate. ### Claim 15 A bumper reinforcement that is produced by molding a thermoplastic material and intended to be integrated into a front assembly for a motor vehicle between a bumper and a technical part, characterized in that the bumper reinforcement comprises at least one mounting plate for supporting at least one sensor, is integral with said bumper reinforcement, and is linked by its perimeter to said bumper reinforcement by means of a fragile material bridge, wherein the mounting plate supports one or more protective pins that rise perpendicularly from a front face (40a) of the mounting plate in a direction from the front of the vehicle to a height greater than the height of a nearest adjacent sensor.