Shock absorbers, vehicle suspensions and vehicles

Abstract

The invention provides a shock absorber, a vehicle suspension and a vehicle. The shock absorber comprises an oil storage tank, a working cylinder, a piston assembly arranged in the working cylinder, a piston rod, a cylinder base and a bottom valve assembly arranged on the cylinder base. One end of the piston rod is connected with the piston assembly. The piston assembly divides the working cylinder into an upper cavity and a lower cavity, the bottom valve assembly is arranged in the lower cavity, and the cylinder base is in sealing connection with the oil storage tank. The shock absorber is characterized in that the bottom valve assembly comprises a first bottom valve assembly body, a second bottom valve assembly body and a connecting rod; the second bottom valve assembly body is arranged on the cylinder base; the connecting rod is supported between the first bottom valve assembly body and the second bottom valve assembly body, so that a sub cavity is formed between the first bottom valve assembly body and the second bottom valve assembly body; damping force generated by the first bottom valve assembly body is smaller than damping force generated by the second bottom valve assembly body. The shock absorber enables the operating performance and the riding comfort of the vehicle to be both achieved.

Description

technical field [0001] The invention belongs to the technical field of vehicle suspension systems, and in particular relates to a shock absorber, a vehicle suspension and a vehicle. Background technique [0002] The shock absorber is an important part of the vehicle suspension system, which plays a role in buffering the impact of the road, attenuating the vibration of the suspension and the body, and directly affects the handling and comfort of the vehicle. The performance of the shock absorber can be specifically quantified by the F-V curve (damping force-speed curve). [0003] Usually, the damping force of the shock absorber is mainly reflected in the damping force brought by the bottom valve (that is, the damping force brought by the piston can be ignored), and when considering the damping force of the shock absorber, usually only when the compression stroke is considered Therefore, the performance of the shock absorber is usually described by the change of the damping f...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a shock absorber for the defect that the existing shock absorber does not take into account the handling performance and ride comfort of the vehicle well

Images