双离合器自动变速器技术对内燃机排放特征的影响分析  

Analysis of the DSG's Effect on the Emission Characteristics of a Car

作　　者：孙龙林[1] 黄文伟[1] 高谋荣[1] 

机构地区：[1]深圳职业技术学院,广东深圳518055

出　　处：《小型内燃机与摩托车》2012年第6期20-23,共4页Small Internal Combustion Engine and Motorcycle

基　　金：教育部项目(210-20-09)汽车传动系统故障诊断与修理课程开发与资源建设

摘　　要：利用高精度的车载排放分析仪,对双离合器自动变速器(DSG)车辆和手动变速器(MT)车辆进行深圳典型道路工况下的排放测试,分析DSG技术对轿车排放的影响。测试数据分析表明,DSG车辆的CO和NOx平均排放因子低于MT车辆,HC平均排放因子高于MT车辆。在起步阶段和换挡频繁的中低车速下,DSG技术能够明显改善发动机工况,减少废气排放,特别是CO和NOx的排放。A high-precision mobile emission analyzer is used to test the emission of a DSG car and a MT car.Then the effect of the DSG technology is analyzed.The test data shows that the emission of CO and NOx from the DSG car is lower than the MT car,but the HC emission is higher than the MT car.During the starting period and the low speed,the DSG technology can improve the working of the engine and reduce the emission especially CO and NOx.

关 键 词：DSG 轿车 排放 

分 类 号：U467.1[机械工程—车辆工程]