Correlation Analysis of Light Passenger Vehicle Energy Consumption and Driving Characteristics

In light of the difference of driving characteristics of light passenger cars, only the overall fuel consumption characteristics of light vehicles as evaluation indexes can’t accurately distinguish the correlation between driving characteristics and fuel consumption of light vehicles. Based on the collected light vehicle driving data based on WLTC driving cycle construction process conditions were constructed by the short trip by taxi and private cars; extracting the corresponding characteristic parameters, and using the method of clustering analysis of independent variables related to vehicle fuel consumption model running parameters for classification. Then, the VSP fuel consumption estimation model is used to analyze the relationship between speed characteristic parameters and acceleration characteristic parameters and fuel consumption respectively. The results show that the velocity and acceleration level is the main factor affecting the taxi and private car fuel consumption difference; in the driving speed range of the vehicle, the vehicle deceleration impact on fuel consumption is relatively small; in the low speed range, the acceleration changes are the main factors affecting taxi and private car fuel consumption rate.