摘要
根据发动机冷却系统的结构及工作过程,提出简化分析发动机冷却系统的若干假定,在此基础上运用集总参数法建立发动机电控冷却系统的数学模型;对一台发动机的起动过程进行仿真计算,并进行试验验证,结果表明该模型比较合理,适用于发动机冷却系统的动态传热计算;设计了发动机冷却液温度控制系统的控制策略,并进行控制仿真;在传热稳态工况下,进行了冷却系统的能耗优化设计。
ome hypotheses were proposed to analyze engine cooling system according to its structure and operating process.Lumped parameter method was used to build a mathematical model for engine electronic-control cooling system on those hypotheses.Then simulation of engine warming up and experimental verification were implemented,and the results showed that the model was reasonable.Furthermore,numerical simulation of engine coolant temperature control system was conducted.Finally,optimal design method of energy consumption in the case of heat transfer steady state was discussed.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第1期31-34,38,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家高技术研究发展计划(863计划)资助项目(2008AA11A121)
关键词
发动机
冷却系统
集总参数法
建模
控制
优化
Engine
Cooling system
Lumped parameter method
Modeling
Control
Optimization
