In-cycle diesel low temperature combustion control based on SOC detection
In-cycle diesel low temperature combustion control based on SOC detection
复制标题
基于SOC检测的循环柴油机低温燃烧控制
DOI：
10.1016/j.apenergy.2014.09.014
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发表时间：
2014-12
期刊：
影响因子：
11.2
通讯作者：
Minggao Ouyang
中科院分区：
文献类型：
--
作者：
Fuyuan Yang;Jinli Wang;Guojing Gao;Minggao Ouyang
由于燃烧不一致或不稳定性，柴油机低温燃烧实施仍然存在挑战。一种可能的解决方案是引入闭环燃烧控制系统。本文提出了一种循环内控制方法，试图通过减小燃烧中心的波动来控制棘手的燃烧。首先，提出了一种基于阻力压力曲线重构和实时检测缸内压差与理想阻力压力曲线的SOC（Start of Combustion）在线检测方法。提出的阻力压力迹线估计方法具有逐步更新估计基准和等效绝热系数的特点。由于这种分步的方法，SOC检测的压差阈值降低到0.2 MPa，具有良好的实时性和可靠性。其次，将SOC检测方法应用于双喷射工况下的循环内燃烧控制。通过实验研究了SOC、燃烧中心和排气再循环率之间的关系。根据试验得到的关系式，设计了一种根据预喷SOC自适应调整二次喷射时刻的算法。试验结果表明，该方法有效地减小了燃烧中心的波动。
Challenges remain in diesel low temperature combustion implementation due to combustion inconsistency or instability. One possible solution is the introduction of closed-loop combustion control systems. In this paper, an in-cycle control method is proposed, which tries to bring the tricky combustion under control by reducing fluctuations of combustion center. Firstly, an SOC (Start of Combustion) online detection method based on the reconstruction of the drag pressure trace and detection of the real-time in cylinder pressure differences with the ideal drag pressure trace is presented. The drag pressure trace estimation measure proposed features a step-by-step update of estimation reference and equivalent adiabatic coefficient. Due to this step-by-step method, the pressure difference threshold for SOC detection is reduced to 0.2 MPa, with both good real-time performance and reliability. Secondly, the SOC detection method is applied in an in-cycle combustion control case under double-injection circumstance. Experiments are performed to find the relationship between SOC, combustion center and exhaust recirculation rate. An algorithm which adaptively adjusts the second injection timing according to the SOC of the pilot injection is designed according to the relationship obtained through experiments. Test results indicate that the fluctuations of the combustion center is successfully reduced.
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影响因子：
11.2
作者：
S. Gan;H. Ng;K. M. Pang
通讯作者：
S. Gan;H. Ng;K. M. Pang
影响因子：
3.2
作者：
H. Persson;R. Pfeiffer;Anders Hultqvist;B. Johansson;Hans Strom
通讯作者：
H. Persson;R. Pfeiffer;Anders Hultqvist;B. Johansson;Hans Strom
DOI：
10.4271/2007-01-0774
发表时间：
2007-04
期刊：
--
影响因子：
--
作者：
Karl A. Schten;G. Ripley;Ash Punater;Clint Erickson
通讯作者：
Karl A. Schten;G. Ripley;Ash Punater;Clint Erickson
影响因子：
10.4
作者：
Thurnheer, T.;Edenhauser, D.;Sankowski, A.
通讯作者：
Sankowski, A.
DOI：
10.1115/1.2179471
发表时间：
2004
影响因子：
1.5
作者：
T. Katrašnik;F. Trenc;Samuel Rodman Opresnik
通讯作者：
T. Katrašnik;F. Trenc;Samuel Rodman Opresnik