摘要
基于进气门传热原理,建立了油膜壁面温度的模型。根据不同工况下的暖机试验数据,研究了进气流量、转速及冷却水温等工况参数对油膜壁面温度的影响规律。通过进一步优化模型结构,并采用MATLAB/Simulink工具箱辨识参数。试验结果表明:模型的预测误差控制在2%以内,油膜吸附壁面温度是影响预测油膜特性参数、指导油膜补偿器设计的重要因素。
A wall-wetting temperature model was established based on intake valve heat-transfer principle to research the influence of operation conditions, such as intake air flow, engine speed and coolant temperature on the wall-wetting temperature. The model structure was optimized further and the temperatures were identified by MATLAB/Simulink. Results show that the error of the model is below 2 % compared with test data. The temperature of wetting wall injected fuel adhering to is of great significance for predicting fuel film characteristic parameter and conducting compensator design.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2011年第1期24-28,共5页
Chinese Internal Combustion Engine Engineering
基金
国家自然科学基金资助项目(50776078)
关键词
内燃机
汽油机
油膜壁面温度
参数辨识
IC engine
gasoline engine
wall-wetting temperatureparameter identification
