Automobile six-link non-independent suspension structure

Abstract

The invention relates to a dependent six-connecting rod suspension structure for a vehicle. The structure comprises an upper left longitudinal draw rod (1), a lower left control arm (2), a rear whole bridge pipe (4), a left transverse draw rod (5), a middle rock arm mounting crossbeam (6), a middle rock arm (7), a right transverse draw rod (8), an upper right longitudinal draw rod (9) and a lower right control arm (10). The dependent six-connecting rod suspension structure disclosed by the invention has multiple degrees of design freedom, and the length of the longitudinal draw rod and mounting hard points are adjusted, so that the kinematic trajectory of a wheel center can be reasonably controlled, and a complete vehicle has the axioversion characteristic of good understeer trends. Compared with the dependent suspension of the whole five-connecting rod bridge type of a single horizontal push rod for universal application at present, the transverse play due to the vertical beating of the dependent suspension wheel of the complete multiple-connecting rod bridge type is minimized, and the running stability of the complete vehicle is improved, so that the phenomenon that the vehicle driven by rear wheels runs to one side can be clearly reduced.

Description

technical field [0001] The invention relates to the technical field of an automobile chassis suspension system, and more specifically, the invention relates to an automobile six-link non-independent suspension structure. Background technique [0002] Suspension is an important part of the vehicle driving system. It directly affects the stability, operability and comfort of the vehicle. The suspension system mainly includes independent suspension, non-independent suspension and semi-independent suspension. Among them, the structure of the non-independent suspension is relatively simple, the cost is low, the installation and maintenance are relatively easy, and the bearing capacity is high. In the prior art, the non-independent suspension structure generally adopts a five-link suspension system, such as the suspension system disclosed in CN202935110U. [0003] as attached figure 1 As shown, it shows a typical non-independent suspension structure of five-link integral axle. ...

AI Technical Summary

Problems solved by technology

Such a structure leads to poor ride comfort and comfort of the straight-line driving of the vehicle, and it is easier to deviate. In severe cases, it may cause the vehicle to flick (oversteer) when turning in a certain direction.

After careful research, the applicant found that the main reason for poor ride comfort and comfort is that the rear axle will have lateral displacement along the axis of the axle tube due to the constraints of the lateral thrust rod, especially when the rear axle is a drive axle. The lateral displacement acts on the rear axle, so that the rear axle will have a certain angle of rotation along the direction of the whole vehicle under the constraint of the longitudinal tie rod, and at the same time, the direction of the propulsion line and the middle symmetrical plane of the vehicle body will also produce a certain included angle and offset distance.

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