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Modular subframe assembly for a motor vehicle

A motor vehicle, modular technology, applied in the direction of motor vehicles, vehicle parts, vehicle springs, etc., can solve problems such as limited flexibility, and achieve the effect of increasing flexibility and reducing noise transmission

Inactive Publication Date: 2004-01-07
DANA HEAVY VEHICLE SYSTEMS GROUP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This conventional design can become too heavy and has problems due to welding deformation
Also, there is only limited flexibility in adapting these conventional subframe structures to various steering and chassis structures

Method used

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  • Modular subframe assembly for a motor vehicle
  • Modular subframe assembly for a motor vehicle
  • Modular subframe assembly for a motor vehicle

Examples

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Embodiment Construction

[0024] refer to figure 1 , the first embodiment of the present invention will now be described. The modular subframe assembly 10 of the present invention includes a modular one-piece cast aluminum subframe lower portion 20, a steel chassis reinforcement upper portion 30, and a vibration isolation liner interposed between the upper and lower portions 20, 30 of the subframe assembly 10 Set of 16.

[0025] exist figure 1 In the embodiment shown in the upper section 30 is provided with a pair of aligned steel chassis reinforcement beams 32, a front engine mounting cross member 34, a rear engine mounting cross member 36 and an engine mounting bracket 38 (only one shown). Suspension mounting brackets 39 are also provided on the upper portion 30 .

[0026] The lower portion 20 is shown as a one-piece cast aluminum body formed to mount the upper and lower arms of the suspension system. Alternatively, a separate bracket 23 is used to mount the upper control arm 40 to the lower subf...

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PUM

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Abstract

A modular sub-frame comprises an upper portion, a lower portion and an intermediate shock absorbing member. The upper portion is a steel fabrication for mounting to the chassis and the lower portion is a lightweight metal whereby these two portions are separated by a vibration-dampening bushing. The lower portion of the modular subframe may be formed as a onepiece cast member or a multipiece casting design where the casting members are jointed by fastening means. In the multipiece casting design, the front and rear bulkhead castings are identical part as are the top longitudinal members to provide interchangeability among the various components. By splitting the subframe into two parts, the top part can be isolated from the bottom part, and the top part of the sub-frame can be revised to adapt to various chassis configurations.

Description

technical field [0001] This invention relates to a subframe for a motor vehicle, and more particularly to a modular subframe for heavy duty axle mounts in which the bottom center casting can be changed to adapt the subframe to various steering system. Background technique [0002] When installing an IFA axle in a heavy duty vehicle with a "C" channel or space frame type chassis, a subframe is often required to accommodate the IFA axle to the chassis. The subframe has the advantage that it forms a complete axle modular frame, but it must be modified to fit each chassis structure. [0003] The conventional subframe assembly is designed to adapt the independent front suspension to the specific chassis structure using welded steel plates and steel tubes. This conventional design can become too heavy and suffers from problems due to welding deformation. Also, there is limited flexibility in adapting these conventional subframe structures to various steering system and chassis ...

Claims

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Application Information

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IPC IPC(8): B60G99/00B60G3/20B60G7/00B60G7/02B60G15/12B62D21/11F16F7/12
CPCB60G2206/71F16F7/12B60G7/008B60G2206/604B60G7/02B60G2202/152B60G2300/14B60G2206/8207B60G2206/7102B60G15/12B62D21/11B60G2206/606B60G2204/1484B60G2202/314B60G2206/8101B60G2206/0114B60G2204/128B60G3/20B60G2204/143B60G2200/44B60G2300/38B60G2206/602B60G2200/144B60G2206/50B60G2204/126
Inventor J·F·齐赫P·R·波洛克
Owner DANA HEAVY VEHICLE SYSTEMS GROUP LLC
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