Rear suspension device of sport utility vehicle

Abstract

A rear suspension fork device for a motile multifunctional vehicle (SUV) is achieved by the following proposal: the upper side of the lower swing-arm of the present vehicle five-link suspension fork and the lower side of the vehicle frame longitudinal beam are respectively provided with a spring seat; the upper and the lower ends of the spring are respectively connected to the spring seat. The rear suspension fork device has simple and reasonable structure as well as easy processing, and can effectively lower the centroid height, increase the spring distance, and improve the operation stability and the drive security; the rear suspension fork device can be used by matching with various SUV vehicles so that the industrialized production can be achieved, and the rear suspension fork device can be used as the renewal product of rear suspension fork of existing SUV vehicles.

Description

technical field [0001] The invention relates to a sports utility vehicle, in particular to a rear suspension device of a sports utility vehicle (SUV). Background technique [0002] Sports utility vehicle is referred to as SUV for short, usually adopts a non-load-bearing body structure, and the chassis adopts a solid frame structure, so that the SUV has a good protection effect on the occupants in the event of a collision or rollover; at the same time, the large ground clearance of the SUV makes the car have a good Through performance and good visibility. These characteristics make SUVs have good road adaptability and more driving pleasure, so they are more and more popular. However, the shortcomings of SUVs, such as high center of gravity and large unsprung mass, have greatly affected the handling stability of the car, making the roll stability of the SUV relatively poor, and the accident rate of rollover is high when avoiding or turning. This has become a production It is...

AI Technical Summary

Problems solved by technology

[0007] As shown in Figure 2, at present, the rear suspension of an SUV generally adopts a five-link structure. The lower end of the spring is arranged on the rigid axle, and the upper end is arranged on the two beams between the two longitudinal beams of the frame. The main problems of the rear suspension device are: 1. The spring seat can only be arranged between the two longitudinal beams, which limits the distance between the two springs, and the spring spacing is limited; 2. The lower end of the spring is installed on the rigid integral vehicle. On the bridge, the reduction of the center of gravity of the sprung mass is limited, and the combination of two factors leads to the vehicle roll angle Larger, which reduces the handling stability and driving safety performance of the car

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