柴油机微粒捕集器与整车匹配研究  

Matching Research of Diesel Particulate Filter and Vehicle

作　　者：侯献军[1,2] 陈旷[1,2] 杜松泽[1,2] 莫丽蓉[1,2] 

机构地区：[1]现代汽车零部件技术湖北省重点实验室(武汉理工大学),武汉430070 [2]汽车零部件技术湖北省协同创新中心,武汉430070

出　　处：《武汉理工大学学报（交通科学与工程版）》2015年第5期1045-1048,1053,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：湖北省自然科学基金重点项目资助(批准号:2013CFA104)

摘　　要：整车装配微粒捕集器后，会对其性能产生影响，文中进行柴油机微粒捕集器与整车匹配研究．利用GT‐Suite软件，建立发动机仿真模型，并与试验结果进行比对，二者误差在5％以内．建立发动机与微粒捕集器耦合模型，微粒捕集器捕集系数最高达到90％，但使发动机动力性、经济性有所下降．建立整车联合仿真模型，仿真结果表明，最高车速下降7．2％，0～100 km／h加速时间增加13．7％，最大爬坡度下降4．8％．在N EDC工况中，100 km油耗增加3．7％，但微粒物的排放量从0．57 g／km下降到0．031 g／km ，满足国IV排放标准．Assembling vehicle with a DPF will weaken its performance ,so that this paper made a matc‐hing research of DPF and vehicle . An engine simulation model is established based on GT‐suite , whose error was within 5% compared to experiment ;A simulation model is established combined the engine and DPF ,that trap capture coefficient was up to 90% ,but the power performance and fuel e‐conomy declined .Joint vehicle simulation model is established ,whose results showed the vehicle’s top speed decreased 7 .2% ,0~100 km/h acceleration time increased 13 .7% ,maximum grade climb‐ing ability decreased 4 .8% and fuel consumption increased 3 .7% in NEDC working condition ,while particulate matter emissions of vehicle dropped to 0 .031 g/km from 0 .570 g/km ,w hich met the Stage IV emission standard .

关 键 词：微粒捕集器 整车性能 匹配 

分 类 号：U462.3[机械工程—车辆工程]