Device for reinforcing a supporting sub-frame

A load-bearing, sub-frame technology, used in suspension, vehicle components, transportation and packaging, etc.

Active Publication Date: 2014-12-17
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For structural and constructional reasons it may be necessary, for example, for the longitudinal members of the subframe to be designed in a curved manner in order to achieve a desired release of the control arm or to achieve a defined control arm length, whereby it may be possible in particular in the bending region weak spot

Method used

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  • Device for reinforcing a supporting sub-frame
  • Device for reinforcing a supporting sub-frame

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] figure 1 In a plan view, the left-hand rear wheel suspension 10 of the motor vehicle is shown, but the rear wheel suspension is described only in a way necessary for the understanding of the invention.

[0016] The hub bracket 12 of the wheel suspension 10 is held on a five-link suspension, wherein the hub bracket 12 is guided by five spatially distributed control arms 14, 16, 18, 20, 22, the control arms On the other side, it is hinged to a subframe 24 which is only partially shown. In addition, the universal joint shaft 28 of the power transmission / powertrain (not shown) that drives the rear wheels can be seen.

[0017] The sub-frame 24 includes two longitudinal beams 30 (only the left longitudinal beam 30 is shown, and the right longitudinal beam is basically symmetrical) and two transverse beams 32, 34 and are supported in a four-point support structure. The component receiving portion 24a is connected to the vehicle body (not shown) of the motor vehicle, for example, t...

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PUM

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Abstract

The invention relates to a device for reinforcing a supporting sub-frame for motor vehicles which is made up of two longitudinal spars (30) and at least one transverse spar (32, 34), wherein by means of radially projecting fixed mountings (36, 38) the links (14, 16, 20, 22) of wheel suspensions on both sides are articulated on the longitudinal spars (30) by means of rubber/metal sleeve bearings, and wherein at least in an articulation region of a link (14) the longitudinal spars (30) have a curvature of in particular approximately 90 DEG with a longitudinally extending section (30b) and a transversely extending section (30c). According to the invention the mountings (36, 38) are formed as two brackets, of which one is supported on the longitudinally extending section (30b) of the longitudinal spars (30) and the other is supported on the transversely extending section (30c).

Description

Technical field [0001] The invention relates to a device for reinforcing a load-bearing subframe for a motor vehicle according to the preamble of claim 1. Background technique [0002] In the case of a five-link suspension, the upper lateral control arm mostly precedes the spring and bumper or spring strut. By arranging a guiding control arm or a lateral control arm above the rear part after the spring or bumper and / or spring strut, the control arm is directed further backwards. The subframe must therefore be constructed very long, passing under the transverse control arm and realizing the column leading to the side members of the vehicle body, or the subframe must be greatly curved in the rear area. [0003] Such a subframe usually supports not only the power transmission device of the motor vehicle but also the control arm of the articulated wheel suspension, so that it can be installed in a complete assembly unit. In a four-point suspension, the subframe is usually connected t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/03B62D21/11B60G7/02
CPCB62D21/11B60G7/02B60G2200/184B60G2204/143B60G2204/15B60G2204/4302B60G2206/014B60G2206/016B60G2206/604
Inventor D·莫洛克
Owner AUDI AG
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