文章基本信息

标题：Model based Diesel Injection Profile Optimization to Reduce Transient Soot Peaks
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作者：Martin Großbichler ; Philipp Polterauer ; Zhen Zhang 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：31
页码：219-224
DOI：10.1016/j.ifacol.2018.10.040
语种：English
出版社：Elsevier
摘要：AbstractTo meet current legislation limits, modern Diesel engines achieve low raw emission levels and utilize complex aftertreatment systems. Still, during fast transients undesired emission peaks may occur for both soot and NOx. These are caused by deviations in the in-cylinder conditions between the quasi steady engine calibration and the transient operation, e.g. during tip-ins. In this work a case study is performed to analyze the potential reduction of transient soot emissions during a specified engine maneuver. An additional target is to investigate potential benefits of a novel in-situ soot sensor based on the Laser Induced Incandescence (LII) principle which offers a high temporal resolution. Measurement data from a Diesel engine is used to develop time varying setpoint deviation models which will be utilized in a numerical optimization problem to determine an optimized injection profile. The modeling and optimization is carried out in parallel for both sensors and results are compared against each other. In the experimental validation the optimized injection profiles were capable of reducing undesired overshoots during transients with minimal impact on the torque response. Furthermore, the novel sensor allows to gain additional insights in the relation between input parameters and soot response, which is reflected by the obtained models and control action.
关键词：KeywordsCombustion ControlCompression IgnitionEngine Control