基于MOVES模型的车辆加减速过程碳排放特征研究OA

To explore the impact of vehicle acceleration and deceleration behaviors on energy-saving and emission reduction,based on the MOVES model,the emission factors of gasoline passenger vehicles under three driving modes of constant speed,acceleration and deceleration are simulated,and the carbon emissions during a single acceleration and deceleration process are quantified.The results show that when driving at a constant speed,the carbon emission factor first decreases rapidly with the increase of vehicle speed and then tends to stabilize.The CO2,CO and THC emission factors in the low-speed stage(vehicle speed<20 km/h)are 5.67 times,4.16 times and 3.13 times higher respectively than those in the stable state,highlighting the importance of optimizing the low-speed working conditions in cities for energy-saving and emission reduction.During accelerated driving,the carbon emission factor is generally higher than that during uniform driving,and the smaller the acceleration,the higher the emission factor.This indicates that shortening the acceleration time and distance can effectively reduce energy consumption and emissions.When decelerating,the carbon emission factor is lower than that when driving at a constant speed.Among them,the greater the deceleration,the higher the CO2 and CO emission factors,and the lower the THC emission factor.Correlation analysis shows that acceleration time and acceleration distance are significantly positively correlated with carbon emissions,while acceleration is negatively correlated with emissions.