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Tubular beam of torsion beam axle type suspension

A technology of torsion beam suspension and tube beam, applied in suspension, elastic suspension, interconnection system, etc., can solve the problem of difficulty in finding simultaneous requirements

Inactive Publication Date: 2009-01-14
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] That is, the shear center and lateral stiffness have opposite tendencies to each other when the same factor is varied; therefore, it is difficult to find a condition that satisfies both of them

Method used

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  • Tubular beam of torsion beam axle type suspension
  • Tubular beam of torsion beam axle type suspension
  • Tubular beam of torsion beam axle type suspension

Examples

Experimental program
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Embodiment Construction

[0030] A preferred embodiment of the present invention will be described below with reference to FIG. 6 .

[0031] A parent tube of a tube beam having a diameter of 101.6 mm and a thickness of 2.8 mm is described by way of example in this embodiment.

[0032] In related prior art, for tubes of the same size, the tube beam is made with a tail radius R of 6.5 mm (the part from line I-I to line II-II), and then enlarged (from line II-II to line III -Part of line III).

[0033] Furthermore, in the related prior art, the tail radius R and the cross-sectional width are equal except for the enlarged portions (portions from II-II line to III-III line) at both ends of the pipe beam. Since the width of the cross section on this part is constant, the center of shear is also constant.

[0034] On the other hand, in this embodiment of the invention, the uniform cross-sectional portion of the middle portion (the portion from line A-A to line B-B) is formed to have a tail radius R1 of 5 mm...

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Abstract

The present invention relates to a tubular beam of a torsion beam axle type suspension, which includes a uniform cross-sectional portion with the smallest tail radius and cross-sectional width throughout the tubular beam, a variable cross-sectional area that extends from the uniform cross-sectional portion and gradually increases in the tail radius and cross-sectional width, and an enlarging cross-sectional portion that extends from the variable cross-sectional portion. Therefore, it is possible to minimize reduction of roll rigidity and improve durability of a tubular beam. Further, it is possible to add understeer characteristics to a tubular beam with an oversteer tendency by minimizing the reduction in transverse rigidity and making a shear center higher.

Description

[0001] Cross References to Related Applications [0002] This application claims Korean priority with the application number 10-2007-0068471 and the filing date is July 9, 2007, the entire disclosure content of which is hereby incorporated by reference. technical field [0003] The present invention relates to a torsion beam type suspension, and more particularly, to a tube beam of the torsion beam type suspension in which the torsion beam is made of a tube. Background technique [0004] A torsion beam suspension that has left and right trailing arms connected by a cross beam (torsion beam), since the trailing arms are connected to the left and right sides, it can be twisted by the torsion beam due to the roll of the vehicle And get the same effect as the stabilizer. Moreover, although the weight of the torsion beam suspension is relatively low, the manufacturing cost is low and the structure is simple, and it can ensure relatively good driving stability, so it is generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G21/055B60G11/18
CPCB60G2200/23B60G21/051B60G2206/202B60B35/04
Inventor 李载允
Owner HYUNDAI MOTOR CO LTD
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