| 柴油机相继增压切换过程阀门耦合控制研究 |
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| 引用本文： | 周文杰,程江华,石磊,邢卫东,邓康耀.柴油机相继增压切换过程阀门耦合控制研究[J].内燃机工程,2020,41(5):70-76. |
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| 作者姓名： | 周文杰 程江华 石磊 邢卫东 邓康耀 |
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| 作者单位： | 上海交通大学动力机械及工程教育部重点实验室,上海200240;中国北方发动机研究所,天津300400 |
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| 基金项目： | 基础产品创新计划科研项目(2018-028) |
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| 摘 要： | 为解决相继增压系统切换过程中压气机喘振和倒流问题,建立了GT-Power/Simulink相继增压系统耦合仿真计算模型,并对切换过程压气机动作延迟时间的影响规律进行研究。仿真结果表明:压气机延迟关闭可以避免压气机的喘振现象;压气机延迟开启可以避免压气机的倒流现象。合理的阀门控制策略可以使切换过程增压压力的波动减少9.3%～21.6%。
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| 关 键 词： | 柴油机 相继增压 瞬态仿真 控制策略 |
| 收稿时间： | 2020/1/3 0:00:00 |
| 修稿时间： | 2020/3/6 0:00:00 |
Research on valve coupling control of diesel engine sequential supercharging switching process |
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| ZHOU Wenjie,CHENG Jianghu,SHI Lei,XING Weidong,DENG Kangyao.Research on valve coupling control of diesel engine sequential supercharging switching process[J].Chinese Internal Combustion Engine Engineering,2020,41(5):70-76. |
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| Authors: | ZHOU Wenjie CHENG Jianghu SHI Lei XING Weidong DENG Kangyao |
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| Affiliation: | Key Laboratory for Power Machinery Engineering of Ministry of Education,Shanghai Jiao Tong University,China North Engine Research Institute,China North Engine Research Institute,Key Laboratory for Power Machinery Engineering of Ministry of Education,Shanghai Jiao Tong University,Key Laboratory for Power Machinery Engineering of Ministry of Education,Shanghai Jiao Tong University |
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| Abstract: | Sequential boosting is currently the main technical means to solve the ultra-wide flow range of diesel engines, but there are control problems such as compressor surge and backflow during the switching process. A turbocharger surge model is established, and the GT-Power / Simulink sequential booster system coupled control simulation is implemented to study the influence of the compressor action delay time during the switching process. The results show that delayed switching off of the controlled turbocharger compressor during 2TC to 1TC switching can effectively avoid compressor surge; 1TC getting delayed switching on of the compressor during 2TC switching can avoid compressor backflow. By optimizing the switching valve control strategy, the fluctuation of the boost pressure during the switching process can be reduced by 9.3% ~ 21.6% |
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| Keywords: | Diesel engine sequential supercharging transient simulation control strategy |
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