Automotive crash structure for attachment to the front subframe

By adding a reinforcement structure to the collision structure of the car's front subframe and using friction or form-fitting connection methods, the problem of the position of the front subframe changing when lateral forces act is solved, improving the stability of the collision structure and the safety of the car. Steering performance.

Inactive Publication Date: 2016-12-14
GM GLOBAL TECHNOLOGY OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changes in the position of the transverse link in the area of ​​the front subframe due to bending in the area of ​​the connection, which adversely affects the steering behavior of the vehicle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 A possible embodiment of a front subframe 100 , in particular a front axle subframe, is shown. The front subframe 100 is preferably U-shaped, wherein a possible embodiment of the crash structure 1 is fastened at the ends of its leg beams 120 , 130 .

[0033] The front subframe 100 serves, for example, to carry the steering gear of the vehicle steering system of the motor vehicle, at least one stabilizer, at least one bearing for the engine mount, a transverse control arm and an exhaust system. A tie rod 160 is preferably assigned to the front subframe 100 , via which the two leg members 120 , 130 of the front subframe 100 are connected to each other. The tie rods 160 are preferably hinged to the side beams 120 , 130 and serve to improve the rigidity of the front subframe 100 in the area of ​​its side beams 120 and 130 .

[0034] The crash structure 1 , which is connected in each case to the ends of the side beams 120 , 130 of the front subframe 100 , is prefe...

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PUM

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Abstract

The invention relates to a crash structure (1) for a motor vehicle for connection to a front subframe (100). At least one reinforcement structure (3) is provided for reinforcing the crash structure (1) in the connection area (2) for the front subframe (100), on which reinforcement structure (3) the crash structure (1 ) can be connected to the front subframe (100) in a friction-fitting and / or form-fitting manner. The invention also relates to a front subframe (100) for a motor vehicle, in particular a front axle subframe.

Description

technical field [0001] The invention relates to a crash structure for a motor vehicle for connection to a front subframe. The invention also relates to a front subframe for a motor vehicle, in particular a front axle subframe. Background technique [0002] Motor vehicles usually have a so-called front subframe or front axle subframe in the front compartment, which additionally supports the steering gear, stabilizers, engine mounts, transverse links and exhaust system of the vehicle. Viewed along the direction of the car, there are crash structures connected to the front sub-frame on the left long side and the right long side of the front sub-frame respectively, and the crash structure is also called a crash extension (crash extension). The crash structure is designed in the form of a longitudinal beam and is intended to absorb crash energy in the event of a vehicle crash. For this purpose, the crash structure is designed in such a way that it can deform in the event of a c...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B62D21/15
CPCB62D21/155B62D27/065B62D21/152B62D27/06
OwnerGM GLOBAL TECHNOLOGY OPERATIONS LLC