离线仿真柴油机整车PEMS排放研究  

Study on PEMS Emission of Off-line Simulation Diesel Engine

作　　者：任学成 陆晓燕[1,2] 吴峰胜 陈勤学 陈灿玉[1,2] 郭际家 刘一航 REN Xuecheng;LU Xiaoyan;WU Fengsheng;CHEN Qinxue;CHEN Canyu;GUO Jijia;LIU Yihang(Wuxi Diesel Engine Factory,FAW Jiefang Automobile Co.,Ltd.,Wuxi 214026,China;FAW Jiefang Automobile Co.,Ltd.Engine Business Division,Wuxi 214026,China)

机构地区：[1]一汽解放汽车有限公司无锡柴油机厂,江苏无锡214026 [2]一汽解放发动机事业部,江苏无锡214026

出　　处：《现代车用动力》2020年第2期42-46,共5页Modern Vehicle Power

摘　　要：通过在Simulink环境下对整车Cruise模型和后处理化学模型BOOST进行耦合,对万有特性排放数据进行插值和惯性延时处理,并基于工况及环境因素的修正,对实际尿素喷射策略进行氨存储闭环控制,最后输出便携式排放污染物测试系统(PEMS)驾驶循环的排放结果。对某欧Ⅵ重型柴油机离线PEMS排放进行仿真计算,预测结果与实测结果趋势一致,精度达到设计目标。The Cruise vehicle model and the BOOST aftertreatment chemical model are coupled in the Simulink software.The engine universal characteristic emission data are interpolated and the inertia delay is processed with the modification of the operation conditions and environmental factors.At the same time,the actual urea injection is controlled by ammonia storage closed-loop control strategy.Finally output the results of the vehicle PEMS emission.By simulating the off-line PEMS emission of a HDD EUⅥengine,the calculated results are consistent with the measured results,and the accuracy meets the design requirements.

关 键 词：离线仿真 便携式排放污染物测试系统 Cruise模型 柴油机 后处理 

分 类 号：U464.172[机械工程—车辆工程] X734.2[交通运输工程—载运工具运用工程]