基于Simulink的SCR载体温度计算模型开发  

SCR Wall Temperature Simulation Model Based on Simulink

作　　者：刘印[1] 李山岭[1] 张清林[1] 夏兴兰[1] 

机构地区：[1]中国一汽无锡油泵油嘴研究所,江苏无锡214063

出　　处：《现代车用动力》2017年第1期27-31,57,共6页Modern Vehicle Power

摘　　要：为开发控制用SCR计算模型,采用Simulink软件建立了SCR载体温度的求解模型,其中包括气体温度求解、载体温度求解,对温度上升过程、温度下降过程的Simulink计算值与试验值对比结果表明,该模型在温度上升过程中,载体温度计算值与试验值吻合较好,误差约10℃;在温度下降过程中,载体温度计算值与试验值误差稍大,但仍能满足计算要求。In order to develop the SCR control oriented computational model,in this paper,the Simulink software was used to establish the SCR wall temperature model,which include one gas temperature solving sub model and one wall temperature solving sub model.The simulated wall temperature and the experiment value are compared during the temperature rising and dropping process.The result shows that when the temperature is rising,the calculated value is in good agreement with the experiment value,with a error about10 degree.While in the process of temperature dropping,the error between simulation value and experiment value is a little high,however the result can still meet the requirement.

关 键 词：柴油机 SCR 计算模型 Simulink软件 载体温度 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]