基于matlab/simulink优化预喷射以改善冷起动性能的研究  

The Investigation of Improving Cold Starting Property by Optimization of Pre-injection Fuel Process Based on Matlab/Simulink

作　　者：梁磊[1] 王一江[1] 

机构地区：[1]中国一汽解放汽车有限公司无锡柴油机厂,江苏无锡214026

出　　处：《现代车用动力》2012年第4期7-9,共3页Modern Vehicle Power

摘　　要：柴油机冷起动性能差是困扰寒冷地区用户使用的一大难题,本文在matlab/simulink软件环境下建立柴油机的纯压缩模型,并以模型为基础优化预喷射,利用预喷射产生的冷焰现象来改善柴油机冷起动性能,并在冷起动试验室进行起动验证,结果表明,预喷射可以在很大程度上改善柴油机的冷起动性能,通过建立模型来计算缸内工质温度以确定预喷射正时的方法可行。Based on matlab/simulink the pure compression model in diesel engine is established,and pre-injection fuel processes is optimized with the model.The cold starting property is improved by cold flame produced by pre-injection fuel,which is verified by cold starting experiment.The cylinder temperature calculated by the model also verifies that the pre-injection fuel is an effective method in improving cold starting.

关 键 词：柴油机 SIMULINK 冷起动 冷焰 

分 类 号：TK423.7[动力工程及工程热物理—动力机械及工程]