面向控制的船用高压共轨系统实时仿真模型开发  

Development of a real-time simulation model for a control-oriented high-pressure common rail fuel system of the marine diesel engine

作　　者：姚贺铭 王勤鹏[1,2,3] 杨建国 余永华[1,2,3] 王英杰 贺玉海[1,2,3] YAO Heming;WANG Qinpeng;YANG Jianguo;YU Yonghua;WANG Yingjie;HE Yuhai(School of naval architecture,ocean and energy power engineering, Wuhan University of Technology, Wuhan 430063, China;Key Laboratory of Marine Power Engineering and Technology Granted by MOT, Wuhan University of Technology, Wuhan 430063, China;National Engineering Laboratory of Ship and Marine Engineering Power Systems, Wuhan University of Technology, Wuhan 430063, China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,湖北武汉430063 [2]武汉理工大学船舶动力工程技术交通行业重点实验室,湖北武汉430063 [3]武汉理工大学船舶与海洋工程动力系统国家工程实验室,湖北武汉430063

出　　处：《哈尔滨工程大学学报》2022年第1期99-107,共9页Journal of Harbin Engineering University

基　　金：船用低速机工程(一期)研制项目(船工科[2015]510号).

摘　　要：为给船用柴油机电控系统软件提供受控对象,本文以船用柴油机高压共轨燃油系统作为仿真对象,建立高压共轨燃油系统的性能仿真模型,计算得到共轨各部件的特性数据,再利用性能仿真计算数据和计算公式建立实时仿真模型,实时仿真模型包括高压油泵子模型、共轨管子模型、喷油器子模型和质量转换子模型等。实时仿真模型可根据电控系统发出的燃油喷射控制和轨压调节信号,实时计算高压共轨燃油系统的压力波动、喷油量和喷油率等特性参数。对开发的高压共轨燃油系统实时仿真模型进行了稳态工况下的喷油量精度对比,以及闭环控制下共轨压力波动的试验,其误差都在5%以内,建立的高压共轨燃油系统实时仿真模型可作为电控系统喷油控制策略的开发和功能验证的受控仿真对象。To provide controlled objects for the software of marine diesel engine electronic control systems,the performance simulation model of a high-pressure common rail fuel system was first established,and the characteristic data of common rail components were calculated.We take the high-pressure common rail fuel system of the marine diesel engine as the simulation object.Then,real-time simulation models are established using the performance simulation calculation data and calculation formula,including a high-pressure oil pump sub-model,common rail tube model,injector sub-model,and mass conversion sub-model.The real-time simulation models can calculate pressure fluctuation,fuel injection quantity,injection rate,and other characteristic parameters of the high-pressure common rail fuel system in real-time according to the fuel injection control and rail pressure regulation signals sent by the electronic control system.The developed real-time simulation models of the high-pressure common rail fuel system were compared in terms of the accuracy of fuel injection under steady-state conditions and pressure fluctuations of common rail under closed loop control,and the errors are all within 5%.The real-time simulation models of the high-pressure common rail fuel system established in this study can be used as the controlled simulation object for the development and function verification of the injection control strategies of electronic control systems.

关 键 词：船用发动机 柴油机 高压共轨燃油系统 实时仿真模型 受控模型 模块化建模 闭环控制 轨压控制 

分 类 号：TK421.6[动力工程及工程热物理—动力机械及工程]