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車用發(fā)動機停缸模式下轉(zhuǎn)速波動仿真
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國家“863”高技術(shù)研究發(fā)展計劃資助項目（2006AA11A128）


Modeling of Speed Fluctuations for Automotive Engine under Cylinder Deactivation Mode
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    摘要:

    停缸技術(shù)可明顯改善車用發(fā)動機的燃油經(jīng)濟性，但對其動力輸出產(chǎn)生影響。通過建立發(fā)動機曲柄連桿多體模型，基于示功圖和經(jīng)驗公式，分析了模型邊界計算方法，仿真了發(fā)動機多種停缸模式的轉(zhuǎn)速波動特性。結(jié)果表明，停缸工作模式的轉(zhuǎn)速波動主要受發(fā)火間隔角的影響，減小工作缸負(fù)荷可降低轉(zhuǎn)速波動。

    Abstract:

    Cylinder deactivation for automotive engine, to decrease the fuel consumption, has an adverse effect on power-output of engine. The multi-body model of the crank-rod mechanism was created. Based on pressure-volume diagrams and empirical equation, the boundary conditions of the model were analyzed. Three cylinder deactivation modes were given. The simulation under the whole cylinder operation mode and the cylinder deactivation modes were investigated at different load conditions. The results showed that the engine speed fluctuations under the deactivation mode differ from the fluctuations under the whole cylinder operation mode, with respect to operating cylinder load and the firing interval angle.

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張登攀,袁銀南,杜家益,崔勇.車用發(fā)動機停缸模式下轉(zhuǎn)速波動仿真[J].農(nóng)業(yè)機械學(xué)報,2010,41(2):25-28. Zhang Dengpan, Yuan Yinnan, Du Jiayi, Cui Yong. Modeling of Speed Fluctuations for Automotive Engine under Cylinder Deactivation Mode[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(2):25-28.

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