Comparative Study of MOBILE and COPERT Emission Models Based on PEMS
In order to investigate macro-scale vehicle emission models suitable for China, this paper systematic introduces the principles, characteristics and applications of the MOBILE and COPERT models at first, then describes the methods of data collecting and dealing of PEMS equipment, and finally modifies the models' input parameters based on the data collected by using PEMS equipment. The emission factors for different road types from the two models are compared with the measurements from real-world tests. The results show that, during the whole vehicle driving cycle and on all classified roads, the predicted emission factors of NOx, HC and CO from the COPERT Model are closer to the measured values than those from the MOBILE Model. Specifically the errors of the former are 19.2％ , 40.8％ and 22.0％ less than the errors of the latter during the whole vehicle driving cycle. In the end, it comes into a conclusion that COPERT model is more suitable for predicting vehicle emission in China than MOBILE model.
traffic engineeringPEMS dataemission modelemission factorsroad type
NETL
NSTL
万方数据
维普
