EGR对汽油机燃油经济性影响的研究  

Researching on the impact of EGR to the gaoline engine fuel economy

作　　者：田国庆[1] 邱若友[1] 罗俊[1] 王英杰[1] 

机构地区：[1]安徽江淮汽车股份有限公司,安徽合肥230601

出　　处：《汽车实用技术》2016年第5期70-72,共3页Automobile Applied Technology

摘　　要：基于NEDC循环工况,通过Cruise计算,确定影响某1.5L自然吸气发动机油耗的关键工况点,并借助CAE分析,确定各工况点的最佳EGR率。根据CAE分析的EGR率,进行发动机的标定和燃烧开发,确定实际最佳的EGR率控制MAP图。最后根据EGR率控制MAP图进行模拟NEDC循环工况,确认出EGR的实际节油率。Based on the NEDC cycle and calculation of the cruise,to determine the impact of a naturally aspirated 1.5L engine fuel consumption of the key point,and with analysis of CAE,to determine the EGR rate of the key point.According to the result of the analysis of CAE,to develop the calibration and the combustion of the engine,then determining the best control MAP of the EGR rate.At last, According to the control MAP of the EGR rate and the NEDC cycle,to determine the actual fuel-saving rate.

关 键 词：自然吸气发动机 EGR NEDC循环 燃油经济性 

分 类 号：U467.4[机械工程—车辆工程]