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柴油机冷起动过程的建模与仿真
引用本文:赵楠,辛喆,谢斌,毛恩荣.柴油机冷起动过程的建模与仿真[J].车用发动机,2010(1).
作者姓名:赵楠  辛喆  谢斌  毛恩荣
作者单位:中国农业大学,北京,100083
基金项目:国家科技支撑计划(2006BAD11A01)
摘    要:根据柴油机工作过程特点建立了柴油机工作循环的计算机仿真模型,针对起动过程的一些特定转速进行仿真计算,研究了运转参数和环境状态对起动过程的影响。根据柴油机动态特性仿真模型研究了发动机起动过程转速随时间的变化规律,仿真结果与实测结果均较为吻合。结果表明:环境温度越低,起动转速越高,漏气率越大,摩擦力矩越大,柴油机冷起动越困难;该仿真模型可以确定能使发动机起动成功的最低拖动转速,对起动机和蓄电池的选配具有指导意义。

关 键 词:柴油机  冷起动  数学模型  仿真

The Modeling and Simulation of Diesel Engine Cold Start
ZHAO Nan,XIN Zhe,XIE Bin,MAO En-rong.The Modeling and Simulation of Diesel Engine Cold Start[J].Vehicle Engine,2010(1).
Authors:ZHAO Nan  XIN Zhe  XIE Bin  MAO En-rong
Institution:China Agricultural University;Beijing 100083;China
Abstract:The simulation model of working process was built according to the working characteristics of diesel engine.The simulation was carried out for some specific speeds of cold start,and the influences of operating parameters and ambient conditions on starting process were further researched.Besides,the varying of speed with time during the starting was researched with the dynamic simulation model.The simulation results coincided with the experiment results.The results show that the lower the ambient temperature...
Keywords:diesel engine  cold start  mathematical model  simulation  
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