宁波市区汽车行驶工况和污染物排放调查研究

Research of Driving Cycle and Emission Pollutant of Vehicles in Ningbo City

利用GPS技术调查了宁波市不同道路汽车行驶工况,记录了实际道路汽车行驶瞬时速度的大量数据。根据数据进行了不同道路汽车行驶工况的解析,分别建立起适合宁波市汽车排放污染物测量的一般道路汽车行驶工况、快速道路汽车行驶工况、城区综合道路汽车行驶工况。分析了城市机动车排放污染的状况及影响因素,讨论了机动车车型和汽车城市道路运行工况对机动车排放污染物的影响。根据行驶工况和流量调查计算了宁波市部分道路机动车污染物排放量。

Driving patterns on different roads were investigated in Ningbo city using advanced instruments GPS. A large amount of testing data of speed were obtained under real road conditions. On the basis of these investigation data, analyses of driving cycles were conducted, and typical driving cycles for in-used vehicle emission factor test were developed, which included driving cycles of ordinary roads with traffic-light, fast highway without traffic-light, comprehensive urban road, respectively. State and influential cause of emission pollutants of automobile in city were analyzed and infection of car model and the road running condition on emission pollutants from automobile were especially discussed. The in-used vehicle emission quantity were calculated from different roads and power-vehicle flow in Ningbo city.