Impact-limiting system of a motor vehicle
View Patent ↗An impact limiting system of a vehicle is provided with a cladding element and bumper substructure. The bumper substructure is spaced apart from the cladding element, and is covered by the cladding element. The bumper substructure is arranged on the vehicle body, and exhibits impact energy absorbing elements. The impact limiting system exhibits an impact force conveying element between the cladding element and bumper substructure.
1. An impact limiting system of a vehicle having a vehicle body, comprising:
impact absorbing deformation elements extending from the vehicle body and aligned with an impact force direction, wherein the impact absorbing deformation elements elastically deform for low impact forces;
a transverse carrier supported on the impact absorbing deformation elements for conveying impact energy to the impact absorbing deformation elements, the transverse carrier having an outer surface, wherein the transverse carrier is dimensionally stable but flexible such that it elastically deforms for low impact forces;
a cladding element forming an outer bumper skin that covers the transverse carrier, the cladding element having an interior surface, wherein the outer surface of the transverse carrier is spaced apart from the interior surface of the cladding element such that a gap arises between the entire outer surface of the transverse carrier and the entire interior surface of the cladding element; and
an impact force conveying element between the interior surface of the cladding element and the outer surface of the transverse carrier and completely filling the gap, the impact force conveying element attached and fixed to both the outer surface of the transverse carrier and the interior surface of the cladding element; wherein
contours of the impact force conveying element are adjusted to contours of the transverse carrier and the cladding element; and
the impact force conveying element is formed from a dimensionally stable and rigid material that conveys low impact forces acting on the cladding element to the transverse carrier.
2. The impact limiting system according to claim 1 , wherein the impact force conveying element forms a spacer, and balances a styling difference between a plurality of vehicle models relative to a barrier penetration pathway.
3. The impact limiting system according to claim 1 , wherein the impact force conveying element comprises a dimensionally stable, structured plastic compound.
4. The impact limiting system according to claim 3 , wherein the plastic compound exhibits a particle-filled plastic compound with a hard material particle fill level of about 40% v/v to about 80% v/v.
5. The impact limiting system according to claim 1 , wherein the impact force conveying element comprises a dimensionally stable, structured metal construction.
6. The impact limiting system according to claim 1 , wherein the impact force-conveying element exhibits a honeycomb structure.
7. The impact limiting system according to claim 6 , wherein webs of the honeycomb structure are aligned in the impact force direction.
8. The impact limiting system according to claim 1 , wherein the impact force conveying element at least partially envelops the transverse carrier.
9. The impact limiting system according to claim 1 , wherein the cladding element comprises attachment elements adapted to secure the impact force conveying element.
10. The impact limiting system according to claim 1 , wherein the impact force-conveying element is arranged as a single piece over at least a partial width of the transverse carrier.
11. The impact limiting system according to claim 1 , wherein the transverse carrier comprises a metal part.