Semi-active vehicle suspension intelligent friction cylinder shock absorber

Abstract

The invention discloses a semi-active intelligent friction cylinder shock absorber of a vehicle suspension. The shock absorber comprises a first spindle, a main support spring, a sealing ring, a second spindle, a lower cylinder end cover, a cylinder body, a passive spring, a spindle friction ring, a piston ring, an auxiliary spring, a sliding sleeve, a cylinder friction material, slider friction materials, guide rail sleeves, controllable friction sliders, piezoelectric actuators and pre-tightening springs. The shock absorber is simple in structure and easy to implement. The shock absorber can be modified on the basis that the original suspension. Friction blocks and piezoceramic materials are relatively mature techniques developed on the market, and good economy, low carbon, environmental protection, high reliability and easiness in maintenance are achieved.

Description

technical field [0001] The invention belongs to the technology of semi-actively controlling the vibration stability of a vehicle suspension, in particular to an intelligent friction cylinder shock absorber for a semi-active vehicle suspension. Background technique [0002] Automobile suspension is a key component to ensure the comfort and running stability of the automobile. An ideal car suspension should be able to adjust according to different road conditions, driving speeds, and different feelings of drivers. [0003] Currently known suspension systems can be divided into three types: passive suspension, semi-active suspension and active suspension. [0004] Among them, the passive suspension refers to the suspension whose stiffness and damping cannot change with the running state, and it is composed of springs, shock absorbers and guiding mechanisms. Its advantages are simple structure, reliable performance, low cost, and no extra energy, so it is the most widely used....

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