吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (1): 159-165.doi: 10.13229/j.cnki.jdxbgxb20160881

• 论文 • 上一篇    下一篇

基于燃烧边界参数响应曲面设计的柴油机性能优化

田径1, 刘忠长1, 刘金山1, 董春晓1, 钟铭2, 杜文畅2   

  1. 1.吉林大学 汽车仿真与控制国家重点实验室,长春 130022;
    2.中国第一汽车集团 技术中心,长春 130011
  • 收稿日期:2016-11-10 出版日期:2018-02-26 发布日期:2018-02-26
  • 通讯作者: 刘金山(1963-),教授,博士. 研究方向:内燃机公害与控制. E-mail:liujs@jlu.edu.cn
  • 作者简介:田径(1981-),副教授,博士.研究方向:内燃机公害与控制. E-mail:jingtian@jlu.edu.cn
  • 基金资助:
    “973”国家重点基础研究发展计划项目(2013CB228402); 吉林省科技发展计划项目(20150520113JH)

Performance optimization of diesel engine based on response surface methodology of multi-boundary combustion conditions

TIAN Jing1, LIU Zhong-chang1, LIU Jin-shan1, DONG Chun-xiao1, ZHONG Ming2, DU Wen-chang2   

  1. 1.State Key Laboratory ofAutomotive Simulation and Control,Jilin University,Changchun 130022,China;
    2.R&D Center,China FAW Group Corporation, Changchun 130011,China
  • Received:2016-11-10 Online:2018-02-26 Published:2018-02-26

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摘要： 在一台增压中冷共轨柴油机上利用实验设计响应曲面法进行性能优化研究。研究选取喷油参数和EGR率共5个影响因子,并以国4排放标准及低于5%油耗量恶化为限定目标,以稳态测试循环B转速50%负荷工况为例,获得的多目标优化因子组合数据结果表明:响应曲面模型可以确立影响发动机性能的核心影响因素,且因素贡献度高低与发动机具体性能参数有关;主因参数之间、主因与次因参数之间的交互作用对发动机性能的贡献度要大于次因参数之间的交互作用;结合满意度函数准确预测出了满足目标设定要求的最佳性能,NOx比排放和消光烟度分别为3.41 g·(kW∙h)-1和4.7%,油耗率为221.3 g·(kW∙h)-1,可为发动机性能研发工作提供参考。

关键词: 动力机械工程, 柴油机, 多段喷射, 响应曲面, 满意度函数, 排放

Abstract: The performance optimization of turbocharged common-rail diesel engine was carried out. Taking the China Stage 4 emission standard and less than 5% fuel consumption deterioration as the as the objectives, five combustion boundary parameters, including injection parameters and Exhaust Gas Recirculation (EGR) rate were set for performance optimization on ESC-B speed 50% load rate. Results show the response surface method can determine the key factors that influence the engine performance. The influence of each factor is highly impacted by the specific performance parameter. The interactions among the key factors or between key and minor factors have greater contribution to the engine performance than the interaction among minor factors. Combined with satisfactory degree function, the optimal performance can be accurately estimated, The NOx and soot specific emissions are respectively reduced to 3.43 g· (kW·h)-1 and 0.019 g· (kW·h)-1, while the fuel consumption is slightly higher compared with the prototype. This response surface methodology can be used for engine performance research and development.

Key words: power machinery and engineering, diesel engine, multiple injections, response surface, satisfactory degree function, emission

中图分类号: 

  • TK427
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