船用柴油机实时缸压的混合建模研究
Research on hybrid modeling of real-time cylinder pressure in Marine diesel engines
实时缸压数据是实现柴油机循环控制的重要参数，直接通过压力传感器测量成本过高。模型估计法和间接测量法是获取缸内压力数据的两种常见方式，但这两种方法是在牺牲实时性的前提下保证其准确性。为了获取实时准确的缸内压力，提出基于数据驱动模型与动力学模型的船用柴油机混合建模方法。首先，通过历史运行缸压数据对韦伯燃烧参数进行标定并构建运行参数与韦伯燃烧参数非线性关系的柴油机数据驱动模型。接着，通过分析曲轴连杆系统的动力学特性，构建一个基于瞬时转速重构缸压的柴油机…查看全部>>
Real-time cylinder pressure data is an important parameter to realize cycle control of diesel engine, and it is too expensive to measure it directly by pressure sensor. Model estimation method and indirect measurement method are two common ways to obtain cylinder pressure data, but these two methods guarantee their accuracy at the expense of real-time. In order to obtain real-time and accurate in-cylinder pressure, a hybrid modeling method of Marine diesel e…查看全部>>
李丽微;刘岱;
TK421+.2
marine diesel engine cylinder pressure prediction data-driven model dynamic model hybrid
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