Construction of a Light-Duty Vehicle Driving Cycle Based on Urban Road

Light-duty vehicle driving cycle is the basis to ascertain vehicle energy consumption, emission testing method, and standard specification, which is an important benchmark for the optimization and calibration of vehicle performance indexes. Based on the project of "China Automotive Test Cycles" of China Automotive Technology Research Center, this study collected five light-vehicles running on the urban road of Hohhot. After cutting and filtering the short segments of the automobile working condition, the eigenvalue of the automobile can be obtained to establish the automobile movement and idling segments database. The typical segments were extracted and combined to explore the velocity-acceleration distribution of the light-vehicles. The traffic flow and weight factors of different speed ranges were divided based on GIS all-road low-frequency traffic data. After obtaining the weighted velocity-acceleration distribution, the light-daty vehicle operating condition of Hohhot city was constructed with the chi-square test.