发动机电控冷却系统建模设计与优化  

Modeling for Electronic-control Cooling System in Engine and Its Optimization

作　　者：邓义斌[1,2] 黄荣华[1] 王兆文[1] 程伟[3] 

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074 [2]武汉理工大学能源与动力工程学院,武汉430063 [3]东风汽车有限公司商用车技术中心,武汉430056

出　　处：《农业机械学报》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)

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.

关 键 词：发动机 冷却系统 集总参数法 建模 控制 优化 

分 类 号：TK424.2[动力工程及工程热物理—动力机械及工程]