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可變噴嘴渦輪增壓器電液控制閥仿真與實(shí)驗(yàn)
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國防科工委項(xiàng)目(JPPT—115—240)


Control Model of Electrohydraulic Proportional Cartridge Valve for Variable Nozzle Turbocharger
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    摘要:

    根據(jù)AVNT控制系統(tǒng)組成及工作原理,，建立凸輪位置反饋式AVNT閥的數(shù)學(xué)模型，分析了控制系統(tǒng)的穩(wěn)定性和電流—轉(zhuǎn)角特性,。仿真結(jié)果表明,，由幅值裕量、相位裕量和響應(yīng)時間可知控制系統(tǒng)穩(wěn)定且具有較好的動態(tài)性能,。AVNT閥安裝到渦輪增壓器上,，通過曲柄軸轉(zhuǎn)角隨輸入電流變化的實(shí)驗(yàn)，驗(yàn)證了仿真模型的可行性,。

    Abstract:

    According to the control system composition and working principle of AVNT, mathematical model of AVNT valve with cam position feedback signal was established, stability performance and characteristic of current-angle were analyzed. Simulation results show that gain margin and phase margin can make control system with guaranteed stability and better dynamic characteristics. Feasibility of the simulation model was verified by the experiments of crankshaft angel changing with input current after AVNT valve was installed in turbocharger.

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葉子波,屈盛官,張宜華.可變噴嘴渦輪增壓器電液控制閥仿真與實(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(9):21-25. Ye Zibo, Qu Shengguan, Zhang Yihua. Control Model of Electrohydraulic Proportional Cartridge Valve for Variable Nozzle Turbocharger[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(9):21-25.

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