Five-link suspension system and vehicle

Abstract

The invention relates to a five-link suspension system which comprises a steering knuckle, an upper front arm, an upper rear arm, a lower oblique arm, a lower transverse arm, a toe-in arm, an auxiliary frame, a spring and a shock absorber. The length direction of a vehicle body is defined as the longitudinal direction, and the width direction of the vehicle body is defined as the transverse direction, wherein the longitudinal direction is perpendicular to the transverse direction. One ends of the upper front arm, the upper rear arm, the lower oblique arm, the lower transverse arm and the toe-in arm are hinged to the steering knuckle, the other ends of the upper rear arm, the lower oblique arm, the lower transverse arm and the toe-in arm are hinged to the auxiliary frame, the lower transverse arm is obliquely arranged in the transverse direction, the spring is opposite to the shock absorber, one ends of the spring and the shock absorber are connected to the lower transverse arm, and theother end of the shock absorber is connected to a side beam of the vehicle body. According to the five-link suspension system, the spring and the shock absorber are separated and linearly arranged above the lower transverse arm, weight reduction of the lower transverse arm and space release are facilitated, a larger luggage space can be obtained, and road noise is reduced. The invention also relates to a vehicle.

Description

technical field [0001] The invention relates to the technical field of automobile suspension, in particular to a five-link suspension system and a vehicle. Background technique [0002] At present, more and more models adopt multi-link structure on the rear suspension, from mid-level cars Focus, Mazda 3, Sagitar, Octavia to slightly higher-level Magotan, Accord, Mazda 6, Toyota Reiz, Mondeo, and even Mercedes-Benz, BMW For the whole series, etc., the rear wheel suspension structure is all multi-link type. Volkswagen's PQ35 and PQ46 platforms have abandoned the four-link suspension structure with rear wheel trailing arm and torsion beam on the previous PQ34 and PQ45 platforms, and instead adopted a five-link suspension structure with better performance. [0003] In the existing five-link technical scheme, it is impossible to separate the arrangement of the spring and the shock absorber. The five-link not only bears the lateral force, but also bears the longitudinal force. Th...

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Problems solved by technology

[0003] In the existing five-link technical scheme, it is impossible to separate the arrangement of the spring and the shock absorber. The five-link not only bears the lateral force, but also bears the longitudinal force. The bearing capacity of the control arm is limited, so the spring and the shock absorber need to be arranged on the shaft joint , and because there is no space for the spring, the spring and the shock absorber need to be integrated and arranged on the shaft joint. The integrated spring and shock absorber has a larger diameter, and the movement has a swing angle. The cost is relatively higher than that of the separate type, and it takes up a lot of height. space, making the trunk space smaller and the user experience reduced

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