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連通式油氣懸架升降同步控
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Synchronization Control for Interconnected Hydro-pneumatic Suspension
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    摘要:

    提出了一種基于調(diào)速閥和壓力跟隨元件的改進(jìn)型連通式油氣懸架系統(tǒng),。利用調(diào)速閥和壓力跟隨元件的有效組合,，完成了系統(tǒng)剛?cè)嵝誀顟B(tài)間的平穩(wěn)切換,，實(shí)現(xiàn)了大型工程車(chē)輛整車(chē)的同步升降,。建立油氣懸架系統(tǒng)AMESim仿真模型，對(duì)變負(fù)載工況下系統(tǒng)同步升高進(jìn)行了仿真,。搭建相關(guān)試驗(yàn)臺(tái),，對(duì)該改進(jìn)型系統(tǒng)進(jìn)行試驗(yàn)研究，其升高過(guò)程的同步誤差小于2.5mm,，剛?cè)嵝誀顟B(tài)切換平穩(wěn),，懸架缸無(wú)抖動(dòng)現(xiàn)象。試驗(yàn)與仿真結(jié)果吻合,，既驗(yàn)證了改進(jìn)型連通式油氣懸架系統(tǒng)的可行性,，又驗(yàn)證了仿真模型的正確性。

    Abstract:

    Based on flow control valve and pressure following element, an improved interconnected hydro-pneumatic suspension was presented. The suspension system achieved rigid-flexible status switching smoothly through effective combination of flow control valve and pressure following element, lifting synchronization of heavy construction vehicle was finally realized. Hydraulic system simulation model of interconnected hydro-pneumatic suspension was established in AMESim and simulation analyses for synchronization performance were carried out at variable load conditions. The test bench was set up and the experimental research was performed. Experimental results showed that synchronization error was less than 2.5 mm in the lifting process and suspension cylinder did not appear jitter when rigid-flexible status switching. The agreement between the simulation results and the experimental data proved the feasibility of the improved interconnected hydro-pneumatic suspension and the accuracy of the simulation model.

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杜恒,魏建華,孔曉武.連通式油氣懸架升降同步控[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(3):29-32. Synchronization Control for Interconnected Hydro-pneumatic Suspension[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(3):29-32.

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