| 稀燃增压CNG发动机起动及怠速控制试验研究 |
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| 引用本文： | 王都,刘志远,冒晓建,王俊席,卓斌. 稀燃增压CNG发动机起动及怠速控制试验研究[J]. 车用发动机, 2009, 0(6) |
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| 作者姓名： | 王都 刘志远 冒晓建 王俊席 卓斌 |
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| 作者单位： | 上海交通大学机械与动力工程学院,上海,200240 |
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| 摘 要： | 根据稀燃增压点燃电控调压式CNG发动机的特点,设计了起动及怠速控制策略,对目标怠速、节气门开度、废气旁通阀开度、燃气供给压差、点火提前角、点火能量、空燃比等参数进行控制。在6缸直列单一CNG发动机上进行了起动及怠速调速试验。试验结果表明:通过优化起动燃气供给量、初始节气门开度、起动点火提前角等参数,可以实现CNG发动机快速、可靠起动;通过标定怠速节气门调速和点火提前角调速控制参数,实现了怠速工况稳定运行。
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| 关 键 词： | 天然气发动机 控制策略 起动 怠速 |
Control and Experiment of the Start and Idle of Lean-burn Natural Gas Engine |
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| WANG Du,LIU Zhi-yuan,MAO Xiao-jian,WANG Jun-xi,ZHUO Bin. Control and Experiment of the Start and Idle of Lean-burn Natural Gas Engine[J]. Vehicle Engine, 2009, 0(6) |
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| Authors: | WANG Du LIU Zhi-yuan MAO Xiao-jian WANG Jun-xi ZHUO Bin |
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| Affiliation: | WANG Du,LIU Zhi-yuan,MAO Xiao-jian,WANG Jun-xi,ZHUO Bin(School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | Start and idle control strategy of lean-burn turbocharged spark-ignition EPR(Electronic Pressure Regulator)-based CNG engine are developed according to the operating characteristic of engine.The main control parameters include that desired idle speed,throttle position,wastegate valve position,EPR delta-pressure,spark advance,spark energy and air-fuel ratio.The tests of start and idle were made on a four stroke inline engine fueled with CNG.The results indicate that the CNG engine can start fast and reliably... |
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| Keywords: | CNG engine control strategy start idle |
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