不同驾驶模式对轻型汽油车排放及油耗试验结果的影响研究

Infl uence of diff erent driving modes on emissions and fuel consumption of Light-duty Gasoline Vehicles

研究不同驾驶模式对轻型汽油车排放及油耗试验结果的影响具有重要意义。本研究利用四驱底盘测功机、全流排放分析仪、环境舱等测试设备对车辆分别进行不同驾驶模式(普通模式、运动模式)、不同驾驶方式(正常驾驶、激烈驾驶)下的常温下冷起动后排气污染物排放试验(WLTC工况),得到车辆在不同驾驶模式和驾驶方式下的整车排放及油耗结果。通过对数据的整理分析得出:该试验车辆在WLTC工况下,除了N_(2)O无明显规律外,其他污染物运动模式下的排放量均高于普通模式;运动模式油耗高于普通模式、激烈驾驶油耗高于正常驾驶。该研究对整车企业进行标定开发以及测试机构进行试验具有一定参考价值。

It is of great significance to study the infl uence of diff erent driving modes on emissions and fuel consumption test results of light-duty gasoline vehicles.In this study,4WD chassis dynamometer,full-fl ow emission analyzer,environmental chamber and other test equipment were used to conduct exhaust pollutant emissions test(WLTC condition,Cold start)under diff erent driving modes(normal mode,sport mode,normal driving,intense driving),so the emissions and fuel consumption of the vehicle under diff erent driving modes are obtained.Through the analysis of the data,it can be concluded that under the WLTC condition,the emissions of other pollutants in the sport mode is higher than that in the ordinary mode,except that there is no obvious law of N_(2)O.The fuel consumption of sport mode is higher than that of ordinary mode,and that of intense driving is higher than that of normal driving.The research has practical reference value for the calibration development of vehicle enterprises and the test of testing institutions.