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氫燃料發(fā)動(dòng)機(jī)怠速控制策略制定及參數(shù)整定
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    摘要:

    將某型號(hào)汽油機(jī)改造成氫燃料發(fā)動(dòng)機(jī)，對(duì)氫燃料發(fā)動(dòng)機(jī)怠速工況下回火現(xiàn)象的生成機(jī)理進(jìn)行理論分析,制定了氫燃料發(fā)動(dòng)機(jī)怠速控制策略。通過(guò)大量的怠速試驗(yàn)，優(yōu)化標(biāo)定了不同控制參數(shù)(電子節(jié)氣門開度、點(diǎn)火提前角、點(diǎn)火閉合時(shí)間、氫氣噴氣正時(shí)),對(duì)轉(zhuǎn)速控制、回火發(fā)生現(xiàn)象進(jìn)行綜合整定。用增量式PID控制算法對(duì)怠速進(jìn)行穩(wěn)定性研究，并對(duì)比例系數(shù)、積分系數(shù)、微分系數(shù)以及控制周期進(jìn)行整定,得到了比較良好的PID控制參數(shù)，實(shí)現(xiàn)了高怠速和低怠速的穩(wěn)定控制,達(dá)到了優(yōu)化控制目標(biāo)。

    Abstract:

    A hydrogen-fueled engine was developed. The idle speed control strategy of hydrogen-fueled engine was established via the theoretical analyses on the mechanism of backfire phenomena of idle speed state. Through a great deal of idle speed experiments, parameters (position of electronic throttle, spark advance angle, ignition dwell angle, and hydrogen injection timing) optimization and the causes of speed fluctuation and backfire were analyzed. The idle speed control stability of hydrogen-fueled engine was studied with increment PID arithmetic. Meantime, PID parameters (proportion coefficient, integral coefficient, differential coefficient and control period) were regulated to favorable values. The experimental results showed that the high stability of both high and low idle speeds was realized and the target of optimization was achieved. 

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袁銀南,朱磊,王存磊,陳篤紅.氫燃料發(fā)動(dòng)機(jī)怠速控制策略制定及參數(shù)整定[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(3):14-18.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(3):14-18.

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