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Motor vehicle with crashbox

A collision energy absorption, automobile technology, applied to vehicle components, elastic shock absorbers, bumpers, etc., can solve problems such as changes

Inactive Publication Date: 2013-03-20
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If different corrugations in the upper and lower panels break first, deforming relative to corrugations at the same location in both sets of corrugations, the above can induce different deformations and the impact of the crash box before causing damage to the stringer can dissipate Energy may vary with each collision

Method used

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  • Motor vehicle with crashbox
  • Motor vehicle with crashbox
  • Motor vehicle with crashbox

Examples

Experimental program
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Embodiment Construction

[0022] figure 1 A perspective view of the outside of a bumper 1 of a motor vehicle, in particular a passenger car, with two crash boxes 2 fastened to its rear side is shown. The bumper 1 is here a simple single-walled steel profile with an essentially C-shaped cross-section, which has two recesses punched in the transverse direction of the vehicle between the crash boxes 2 4 Reinforced panel 3 and side panels 5 bent horizontally from the upper and lower edges of panel 3 to the vehicle interior. The crash box 2 is joined to the rear side of the bumper 1 from the inside of the vehicle toward the cavity surrounded by the panel 3 and the side panel 5 and welded at this joint.

[0023] The crash boxes 2 each comprise two substantially channel-shaped parts here, which, for example, the bumper 1, are formed from steel plates and, in the channel-shaped parts, are arranged facing the The gutter-like part on the outside of the car is referenced 6 and the gutter-like part facing the ce...

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PUM

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Abstract

A motor vehicle, in particular a passenger motor vehicle, comprises at least one side member (21), a bumper (1) and a crashbox (2) formed by connection of two channel-shaped elements (6, 7). The bumper (1) is connected with the side member (21) by inserting an anchorage section (13) of the crashbox (2) into the side member (21). A main section (11) of the crashbox (2) extrudes outwards from the side member (21). The channel-shaped elements (6, 7) are connected with each other through flanges (12) inside the main section (11). The flanges (12) end at a transition position from the main section (11) to the anchorage section (13).

Description

technical field [0001] The invention relates to a motor vehicle comprising at least a side member, a bumper and a crash box connecting the bumper to the side member, the crash box being arranged to dissipate the crash energy through deformation in the event of a collision And this prevents deformations of the stringers which are extremely difficult to remove. Background technique [0002] A crash box is known from DE 10 2007 035 483 A1, the upper and lower wall panels of which have corrugations in a section plane extending in the longitudinal direction of the crash box. These corrugations constitute the weak points of the crash box, where the deformation of the crash box starts when a crash occurs. The corrugations are indistinguishable from each other in cross-section, so that some chance, such as different panel strengths and metallic material textures within manufacturing tolerances, will affect which of the many corrugations occurs first on impact affected by fracture....

Claims

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Application Information

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IPC IPC(8): B60R19/34
CPCF16F7/12B60R19/34B62D21/152
Inventor H-J.帕特希克J.哈特曼
Owner GM GLOBAL TECH OPERATIONS LLC
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