基于公示油耗的乘用车实际油耗及其用户满意度预测

Prediction of the Real-World Fuel Consumption and Consumer Satisfaction Degree for Passenger Cars Based on the Labeled Fuel Consumption

中国于2010年建立了轻型汽车燃料消耗量公示制度。目前面临的问题是用户的实际油耗普遍要比公示油耗高很多,且油耗与用户满意度之间的关系并不明确。对大量数据进行了统计分析,结果表明,公示油耗与用户实际油耗的平均值之间存在近似的线性关系,其影响因素包括变速器类型、制造商等;用户油耗满意度与实际油耗及车辆功率成近似线性关系,其影响因素还包括车型级别、变速器类型、汽车的排量等。根据以上规律,可以由车辆的公示油耗对用户的实际油耗及用户满意度做出预测。

China has implemented the ＂light vehicle fuel consumption labeling＂ policy since 2010. The problems we are confronting with include the much higher real-world fuel consumption rates than the test values and the unclear relationship between the fuel consumption rates and the consumer satisfaction degree. In order to solve these problems, a large amount of data was analyzed and the following principles were discovered. There is a linear relationship between tile mean fuel consumption in real world and the labeled value and it is affected by transmission type and vehicle manufactures. The second principle specifies that the satisfaction degree of the vehicle fuel consumption is nearly in proportion to its fuel consumption and engine power, thereibre the vehicle class, transmission type and engine displacement are also related. With these principles, the real-world fuel consumption and its consumer satisfaction degree can be predicted by the labeled fuel consumption.