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壓燃/低溫燃燒柴油機(jī)進(jìn)氣系統(tǒng)魯棒滑??刂?/div>
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內(nèi)燃機(jī)燃燒學(xué)國家重點(diǎn)實(shí)驗(yàn)室開放課題資助項(xiàng)目(K2010-12)和廣東省部產(chǎn)學(xué)研結(jié)合資助項(xiàng)目(2010A090200010)


Robust Slide Mode Control for Intake System of Diesel Engine Operating under Conventional and Low Temperature Combustion Modes
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    摘要:

    闡述了一種壓燃/低溫燃燒(CI/LTC)組合燃燒模式柴油機(jī)燃燒進(jìn)氣系統(tǒng)的非線性魯棒控制策略?;诶硐霘怏w方程和質(zhì)量守恒定律建立了柴油機(jī)進(jìn)氣系統(tǒng)的非線性狀態(tài)空間模型,選擇影響燃燒的進(jìn)氣系統(tǒng)關(guān)鍵變量進(jìn)排氣壓力和進(jìn)氣組分作為系統(tǒng)輸出變量,并采用魯棒積分滑模方法設(shè)計(jì)了控制器??刂葡到y(tǒng)通過對進(jìn)氣系統(tǒng)關(guān)鍵變量的跟蹤控制,間接控制缸內(nèi)條件參數(shù),實(shí)現(xiàn)燃燒模式間的平滑切換。最后分別采用GT-Power和Matlab/Simulink軟件耦合仿真和快速原型控制仿真驗(yàn)證該控制器的效果。其結(jié)果表明與獨(dú)立PI閉環(huán)控制方法相比,該控制策略具有跟蹤性能好、響應(yīng)速度快、抗干擾能力和魯棒性強(qiáng)等優(yōu)點(diǎn)。

    Abstract:

    A robust nonlinear control approach for modern diesel engine operating under low temperature combustion and conventional compressor ignition combustion modes is described. A nonlinear state space model of intake system is established based on the ideal gas equation and the law of mass conversation. The intake pressure, exhaust pressure and composition of inducted flow are chosen as the system outputs, which have key influence on in-cylinder combustion, and the corresponding controller is designed by the method of integral sliding mode. Smooth switching of combustion modes is achieved by tracking the key engine air-path operating variables to control the in-cylinder conditions indirectly. At last, the effects of the controller were evaluated by co-simulations using GT-Power and Matlab/Simulink and rapid control prototype respectively. The result unveiled that compared with the PI algorithm the innovative control algorithm had significant merits such as good tracking performance, fast response, strong anti-interference and robustness and so on.

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李頂根,何春萌.壓燃/低溫燃燒柴油機(jī)進(jìn)氣系統(tǒng)魯棒滑??刂芠J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2014,45(12):18-24. Li Dinggen, He Chunmeng. Robust Slide Mode Control for Intake System of Diesel Engine Operating under Conventional and Low Temperature Combustion Modes[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(12):18-24.

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  • 收稿日期:2013-11-24
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  • 在線發(fā)布日期: 2014-12-10
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