同济大学学报（自然科学版）2021，Vol.49Issue(z1)：70-78,9.DOI:10.11908/j.issn.0253-374x.22799
多次喷射模式下共轨系统喷油量波动预测与补偿
Fuel Injection Quantity Fluctuation Prediction and Compensation for Multiple Injections of Common Rail System
摘要
Abstract
To solve the inaccurate injection quantity problem in multiple injections,in this paper,a simulation model of the electro injector is developed in the AMESim environment through dynamics analysis of injector,and the parameter matching and rationality verification of the model are also conducted. In addition,the influencing factors of fuel injection fluctuation are investigated. The results show that the change of injection pressure,pre-injection pulse width,the dwell time between the main and the pilot injection pulse can affect fuel fluctuation. Moreover,a fuel compensation control strategy based on self-learning system is constructed by using a certain sample of stimulation data to compensate for the deviation of multiple injection quantity. A self-learning system is realized by using the genetic algorithm(GA)and neural network,which can effectively improve injection control.关键词
共轨系统喷油器/喷油器建模/波动量预测/喷油补偿/多次喷射Key words
common rail system injector/injectors modelling/fluctuation prediction/injection quantity compensation/multiple injections分类
交通工程引用本文复制引用
刘奇芳,李东子,张亮,欣白宇..多次喷射模式下共轨系统喷油量波动预测与补偿[J].同济大学学报（自然科学版）,2021,49(z1):70-78,9.基金项目
国家自然科学基金青年基金(61803173) （61803173）
吉林省自然科学基金(20200201062JC) （20200201062JC）
