Vehicle body for a motor vehicle

A technology for automobile bodies and automobiles, applied to vehicle parts, bumpers, substructures, etc., can solve problems such as contact corrosion and achieve high stability

Inactive Publication Date: 2007-12-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This creates the risk of contact corrosion

Method used

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  • Vehicle body for a motor vehicle
  • Vehicle body for a motor vehicle

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Embodiment Construction

[0020] FIG. 1 shows a perspective view of a subregion of a vehicle body 1 of a motor vehicle having a side member 2 and a bumper 3 , pointing in the direction of travel. A crash box 4 is arranged between the bumper beam 3 and the longitudinal beam 2 . The longitudinal beam 2 is made of steel, while the crash box 4 is made of light metal (for example aluminium).

[0021] FIG. 2 shows a sectional view of the motor vehicle body 1 along the line II-II in FIG. 1 in the region where a crash box 4 is connected to a side member 2 . The end of the crash box 4 facing away from the bumper 3 shown in FIG. 1 is inserted into the longitudinal beam 2 . The longitudinal beam 2 is made tubular for this purpose. An adapter element 5 is arranged between the side member 2 and the crash box 4 . The adapter element 5 is made of steel and has an organic, metal-containing weldable coating 6 on its side facing the crash box 4 . The organic coating 6 has properties predetermined for welding to the ...

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Abstract

A motor vehicle chassis(1) for a motor vehicle(1) has an adapter element(5) to join an aluminum crashbox (4)to a longitudinal supporting beam(2). To accommodate one end of the crashbox(4) the adapter element (5)has a pot-shaped design and introduced into the longitudinal supporting beam(2). Due to this the motor vehicle chassis(1) is particularly simple to construct.

Description

technical field [0001] The invention relates to a vehicle body for a motor vehicle with a tubular steel side member and a crash box made of light metal, wherein the crash box is fastened to the side member pointing to the direction of travel on one end of the direction. Background technique [0002] Such vehicle bodies are commonly used in current motor vehicles and are known from practice. The crash box is used to reduce the collision energy in the front collision of the automobile. In order to achieve the lowest possible weight, the crash boxes are mainly made of aluminum, while the side members are made of steel. This creates the risk of galvanic corrosion between the crash box and the side member. For this reason, aluminum crash boxes are usually installed after painting the steel components of the vehicle body. Contents of the invention [0003] The technical problem addressed by the invention is to develop a motor vehicle body of the above-mentioned type in such ...

Claims

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Application Information

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IPC IPC(8): B62D21/15
CPCB60R19/34B62D21/152B62D21/00B62D21/02B62D21/05
Inventor 巴多·布朗贝克西奥巴尔德·霍克维特-亨格·盖恩
Owner GM GLOBAL TECH OPERATIONS LLC
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