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《机械工程前沿(英文)》 >> 2008年 第3卷 第1期 doi: 10.1007/s11465-008-0014-5

Design of damping valve for vehicle hydro pneumatic suspension

School of Mechanical and Vehicular Engineering, Beijing Institute of Technology

发布日期: 2008-03-05

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摘要

According to the design features of a hydro pneumatic spring, the necessity of a separate damping valve is proposed. Based on a 1/4 vehicle linear suspension model, the optimum damping coefficient is worked out and the parameters of the damping valve are determined with the equivalent linearization method. A practical structure of the damping valve is proposed having a small size, high flowrate when the valve opens, and the ability of enduring high back pressure. Based on bench tests, the damping valve has been found to properly work and be suitable. The design method and damping valve structure are useful guides for hydro pneumatic suspension, especially for the design of heavy-duty vehicles.

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