Air spring capable of self-adapting rigidity and key parameter design method

Through the mechanical structure design of the dual-piston diaphragm air spring and the adaptive stiffness adjustment component, continuous adaptive adjustment of the air spring stiffness is achieved, solving the problems of stiffness discontinuity, delay and electronic control dependence in the existing technology, and improving the vehicle's ride comfort and handling stability.

CN122402154APending Publication Date: 2026-07-17CHONGQING UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Filing Date
2026-04-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing air spring stiffness adjustment technology suffers from problems such as discontinuous stiffness changes, response delays, low control precision, and strong dependence on electronic control systems, making it unable to adapt to the high dynamic driving conditions of vehicles.

Method used

It adopts a dual-piston diaphragm air spring and an adaptive stiffness adjustment component. The stiffness is continuously and adaptively adjusted with the compression stroke through a purely mechanical structure. The air chamber is separated by a cylindrical limiting mechanism and a floating contact, and the through hole is gradually blocked or opened to achieve continuous stiffness adjustment.

Benefits of technology

It achieves continuous adaptive adjustment of air spring stiffness, solves the problems of stiffness jump and response delay, reduces system complexity and cost, and improves vehicle ride comfort and handling stability.

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Abstract

本发明公开了一种能够自适应调节刚度的空气弹簧及关键参数设计方法,属于车辆空气悬架系统技术领域。针对现有电控刚度调节方案存在刚度跳变、响应延迟、控制精度低的缺陷,本发明在双活塞膜式空气弹簧内设置纯机械自适应刚度调节组件,依靠浮动触头随压缩行程的轴向滑动,逐步控制主、附加气室的通断,无需电控元件即可实现刚度的连续、无延迟自适应调节。同时,本发明配套标准化的关键参数设计方法,可根据整车性能需求精准匹配各结构参数,保障刚度切换特性适配整车需求,能够有效提升车辆动态操控与稳定性能,结构简单可靠,成本低,具备良好的工程实用性。
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