双阀电控单体泵燃油系统循环喷油量波动量化分析与控制方法研究

项目名称： 双阀电控单体泵燃油系统循环喷油量波动量化分析与控制方法研究

项目编号： No.51279037

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 水利工程

项目作者： 宋恩哲

作者单位： 哈尔滨工程大学

项目金额： 82万元

中文摘要： 电控单体泵燃油系统是船用柴油机节能减排的先进核心技术之一。然而，由于其喷油压力、喷油规律不能灵活控制，应用受到限制。将电控单体泵与电控喷油器相结合的双阀电控燃油系统具有喷油压力、喷油规律控制灵活且独立的优点，应用前景明朗。但由于其多参数相互作用的高度复杂非线性导致了循环喷油量波动，而循环喷油量稳定性是决定其成功匹配柴油机的关键。本课题建立多物理场耦合的数值模型和试验装置，将引起循环喷油量波动的因素解析为三种形式：1）寿命周期内系统参数变化引起的循环喷油量变化；2）批生产中因制造精度产生个体之间的循环喷油量差异；3）由于复杂机械、液力、电磁作用引起的循环喷油量波动。分别利用相关性分析方法、蒙特卡罗方法、系统解耦方法对决定循环喷油量波动的关键参数进行量化分析，揭示产生机理，提出控制方法。本课题的完成对双阀电控单体泵系统的发展和完善具有重要理论意义，并促进机械、液力、电磁系统协同仿真技术的发展。

中文关键词： 柴油机；双阀电控单体泵；循环喷油量；量化分析；控制方法

英文摘要： The electronic unit pump (EUP) fuel injection system is one of the nuclear sophisticated technologies for energy savings and pollutant reductions used in marine diesel engine. However, the application of EUP system is limited owning to its incompetence in controlling injection pressure and rate flexibly. While the double-valve electronic controlled fuel injection system combined the EUP and electronic controlled injector together, which can achieve advantages such as controlling injection pressure and rate neatly and independently, has a bright prospect for application in marine diesel engines. Whereas the cycle fuel injection quantity (CFIQ) of the double-valve fuel injection system is unstable due to highly complex and non-linear interaction between multi- physics parameters. It is noteworthy that the stable of CFIQ is the key problem for equipping marine diesel engine with double-valve fuel injection system. The project classified the factors that caused cycle fuel injection quantity variation (CFIQV) into three types through developing numerical simulation model and establishing test bench of the double-valve fuel injection system coupled by multi-physics fields. Factors including CFIQV thanks to the change of parameters in lifecycle, CFIQV in single pump-line-injector caused by manufacture precision and CFI

英文关键词： Diesel engine；Double-valve electronic unit pump fuel system；Cycle fuel injection quantity；Quantitative analysis；Control method