Torsion girder-like rear suspension

Abstract

The invention relates to a structure of a torsion beam-type rear suspension of an automobile; the left and the right suspension vertical arms composed of pipe fittings of the torsion beam-type suspension are arranged on the two sides along the front and the back directions of the automobile; a torsion beam body with a sulciform section is connected therebetween. The structure is characterized in that: the torsion beam body is sulciform member with downwardly-arranged opening; the left and the right suspension vertical arms connected with the torsion beam body are arranged on the front end of the connection part and outstretched; the outstretching angle is symmetrical with the automobile body. The structure effectively improves the roll center of the rear suspension, solves the problems of large angle of the automobile body when the automobile is turning, and at the same time, significantly refrains the over-turning of the rear shaft when the automobile is turning, thus improving and promoting the operational stable performance of the automobile.

Description

technical field [0001] The present invention relates to automobile suspension, specifically relates to the structure of torsion beam type rear suspension of automobile. Background technique [0002] The cross-sectional opening of the torsion beam body in the existing torsion beam suspension is basically arranged to open forward or backward, resulting in a low shear center of the torsion beam and a low roll center of the rear suspension, resulting in a large body roll angle when the vehicle is turning ;The torsion beam and the body are directly connected without transitional connection brackets, which makes installation more difficult and requires higher positioning and strength of the body fixtures; the front ends of the longitudinal arms are arranged in parallel, figure 1 It is a structural schematic diagram of a conventional torsion beam suspension in the prior art, and the included angle θ of the trailing arm is 0°. In addition, the complex design of the bushing structure...

AI Technical Summary

Problems solved by technology

In the above technical solution, the opening of the torsion beam body is arranged downward, which effectively overcomes the defect that the shear center of the torsion beam is relatively low due to the arrangement of the cross-section opening facing forward or backward in the prior art, and the roll center of the rear suspension is relatively Improvement, effectively improving the problem of large body roll angle when the vehicle is turning

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