Recently, there has been increasing interest in reducing hazardous and CO₂ emissions from vehicles. For emission reduction, it is necessary to analyze operating conditions of vehicles by using real on-road data and to improve their effective performance. In particular, for heavy-duty vehicles, technical improvements and operational management are critical in terms of air quality management, for although the number of vehicles is small, the duration and level of emissions are relatively high. However, research data obtained from analyses of driving characteristics of heavy-duty domestic delivery vehicles are relatively insufficient. Technically, there are many difficulties in setting driving conditions for such analysis, such as measuring driving resistance and determining variations in the vehicle mass with the amount of freight. In this study, on the basis of the speed and engine output data of a heavy-duty gas delivery tractor obtained during real road driving, the driving characteristics of the vehicle was analyzed, its weight was estimated, and the effect of the vehicle’s weight on the driving energy and vehicle output was investigated.

最近，人们越来越关注减少有害物质和 CO ₂车辆排放。为了减排，需要利用真实的道路数据来分析车辆的运行状况，并提高其有效性能。尤其是重型车辆，在空气质量管理方面，技术改进和运营管理至关重要，因为车辆数量虽少，但持续时间和排放水平相对较高。然而，国内重型运载车行驶特性分析的研究数据相对不足。从技术上讲，为此类分析设置驾驶条件存在许多困难，例如测量行驶阻力和确定车辆质量随货运量的变化。在这项研究中，