Twist beam axle

Abstract

The invention relates to an assembly (100) for a vehicle, comprising two longitudinal members (1, 2) and a crossmember (3) arranged therebetween, which crossmember extends approximately perpendicularly to the longitudinal members (1, 2), wherein the crossmember (3) is an elastically twistable torsion member, and the crossmember (3) is made predominantly of fibre composite material and the longitudinal members (1, 2) are made predominantly of a metal material, and the crossmember (3) is connected to the longitudinal members (1, 2), wherein the crossmember (3) is clamped or supported on one of the two longitudinal members (1, 2), at a connection point (6) of the crossmember to the longitudinal members (1, 2), by means of respective ends (7) of the crossmember, and torsional forces are transmitted to the crossmember (3) at said connection point (6). In order to improve the assembly to the effect that the crossmember can be easily connected to the longitudinal member and the forces and torques occurring at the connection point nevertheless can be transmitted to the crossmember well at the connection point and the connection point has high stability at the same time, the connection point (6) between the crossmember (3) and the longitudinal member (1, 2) comprises an overlapping region (B), in which a connection segment (8) of the longitudinal member (1, 2), which is predominantly composed of metal material, overlaps at least in some segments with a part of the crossmember (3), which is predominantly composed of fibre composite material.

Description

technical field [0001] The invention relates to an assembly for a vehicle according to the preamble of claim 1 . Background technique [0002] Such assemblies with two longitudinal members and a cross member arranged between the two longitudinal members are formed in vehicle construction as subframes, stabilizers or axles, in particular torsion beam axles or the like. [0003] Depending on the pivoting or rolling movement of the vehicle along the vehicle transverse axis, the longitudinal beams can be deflected relative to each other to different degrees. The forces generated here are introduced as torsional forces or torques in the transverse beams connecting the longitudinal beams. In this case, the transverse beam is elastically twisted or turned along its longitudinal axis. In addition, the beams undergo elastic bending deformations. The transverse beam couples the pivoting movements of the two longitudinal beams to one another. [0004] The cross member is usually ar...

AI Technical Summary

Problems solved by technology

[0013] The problem with known devices is that the joint connection between the fiber composite cross member and the metal longitudinal member is not high enough to transmit the torque introduced at the joint to the cross member without loss.

Furthermore, despite the reinforcements in the region of the joining points, fractures of the less stable fiber composite material often result, which involves safety-related risks in the field of vehicle construction.

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