ETC环境下驾驶行为对车辆排放的影响分析

Analysis of the influence of driving behavior on vehicle emission in ETC environmen

为分析ETC收费环境下驾驶行为特征对车辆排放量产生的影响,通过对驾驶员基本特性的实际问卷调查分析出ETC收费环境下驾驶员的驾驶行为,得出影响车辆排放的显著驾驶行为因素。根据不同驾驶员驾驶捷达轻型车通过北京西红门ETC收费站上游500m路段实地尾气排放测试,利用车载排放测试系统SEMTECH-DS对车辆进行排放统计,得出驾驶员的行驶速度与车辆尾气排放率之间的关系。结果表明,不同驾驶员在车辆速度控制方面是存在差异性的,而这种差异性是导致车辆尾气排放量不同的主要原因。因此通过规范驾驶员的驾驶行为,培养良好的驾驶习惯,有利于驾驶员能够更为合理地控制车辆的速度和加速度,从而使车辆完成ETC收费的整个过程尾气排放达到最优。

In order to analyze the effect of driving behavior characteristics on vehicle emission in ETC charging environment, and based on a questionnaire survey of the drivers＇ basic characteristics, the driving behavior of drivers under ETC charging environment is analyzed, and the driving driving factors influencing vehicle emissions are concluded. According to the actual vehicle emission test by different drivers of Jetta light vehicle passing through 500 m section in front of the ETC station in Xihongmen, the on board emission testing system SEMTECH DS is used to get the vehicle emissions statistics of Jetta light vehicle, which analyses the relationship between the driving speed and the vehicle emission rate. The results show that the different driver in the vehicle speed control are different, and this difference is mainly due to vehicle exhaust emissions. So by constraining the driver＇s driving behaviour and developing good driving habits, the driver can control the vehicle＇s speed and acceleration more reasonably, so that the vehicle emission of whole process of vehicle electronic toll collection is optimal.