[1]胡 松,王贺春,王银燕,等.面向控制的多次喷射柴油机仿真模型建模方法[J].内燃机学报,2020,(05):392-400.[doi:10.16236/j.cnki.nrjxb.202005051]
　Hu Song,Wang Hechun,Wang Yinyan,et al.Establishment of Control-Oriented Model for Multi-Injection Diesel Engine[J].,2020,(05):392-400.[doi:10.16236/j.cnki.nrjxb.202005051]
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面向控制的多次喷射柴油机仿真模型建模方法
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《内燃机学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年05
页码:
392-400
栏目:
出版日期:
2020-09-25

文章信息/Info

Title:
Establishment of Control-Oriented Model for Multi-Injection Diesel Engine
作者:
胡 松1; 王贺春2; 王银燕2; 杨福源1; Finesso R3; D’ambrosio S3
(1. 清华大学 汽车安全与节能国家重点实验室，北京100084； 2. 哈尔滨工程大学 动力与能源工程学院，黑龙江 哈尔滨150001；3. 都灵理工大学，都灵 10129，意大利)
Author(s):
Hu Song1; Wang Hechun2; Wang Yinyan2; Yang Fuyuan1; Finesso R3; D’ambrosio S3
(1. State Key Laboratory of Automotive Safety and Energy，Tsinghua University，Beijing 100084，China；2. College of Power and Energy Engineering，Harbin Engineering University，Harbin 150001，China；3. Politecnico di Torino，Turin 10129，Italy)
关键词:
柴油机; 多次喷射; 燃烧模型; 面向控制
Keywords:
diesel engine; multi-injection; combustion model; control oriented
分类号:
TK414.31
DOI:
10.16236/j.cnki.nrjxb.202005051
文献标志码:
A
摘要:
基于累积燃油质量方法的燃烧模型，建立了多次喷射柴油机零维预测燃烧模型，考虑了燃油蒸发吸热、缸壁传热、化学能释放、泵功损失和摩擦损失，为满足实时性要求，对显式放热率和缸压进行了简化重构．将柴油机运行参数和一些衍生参数作为模型中各个因变量的候选自变量集，以幂函数为基础函数采用敏感度分析筛选出各个因变量对应的自变量集，并通过分析提出了一些改善措施，最终确定各个因变量和对应自变量集之间的映射关系．在稳态工况和重型车辆发动机瞬态测试循环(WHTC)测试了该模型的预测性能，并在ETAS ES910 型快速原型设备上测试了该模型的计算耗时，结果表明：在稳态工况，对燃烧中心(MFB 50)、最高燃烧压力和平均有效压力的预测精度均方根误差(RMSE)分别为0.153° CA、0.182 MPa 和0.063 1MPa；在瞬态工况，其预测精度RMSE 分别为1.2° CA、1.05 MPa 和0.07 MPa；该模型计算耗时约为350 μs，满足燃烧过程实时控制的要求．
Abstract:
A control-oriented 0 D combustion model for multi-injection diesel engine was established using a combustion model based on accumulated fuel mass approach. Evaporation heat，transfer heat of the cylinder，chemical heat release of the fuel，pumping loss and friction loss were considered in this model. To meet the computing time requirement for real-time control，the net heat release rate and the in-cylinder pressure were simplistically reconstructed. To make the fitting precision better，both measured and generated parameters were taken as independent variable candidates. Furthermore，a set of independent variables corresponding to each dependent variable was confirmed by sensitivity analysis. Some improving measurements of correlation functions were also proposed after analyzing some parameters and power function characteristics. At last，a control-oriented combustion model was developed. The predictive performance under steady and the world harmonized transient cycle(WHTC)transient operating conditions was verified，and the computing time was tested on ETAS ES910 rapid prototyping equipment. The results show that the predictive precision of RMSE for MFB 50，PFP and BMEP is 0.153° CA，0.182MPa and 0.063 1MPa under steady operating condition and 1.2° CA，1.05 MPa and 0.07 MPa under WHTC transient operating condition，respectively. The computing time is 350 μs，which meets the computing time requirement for real-time control.

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更新日期/Last Update: 2020-09-25