行驶特征参数与VSP的关联性分析研究  

Research on correlation analysis between driving characteristic parameters and VSP

作　　者：郭新 章勇[1] GUO Xin;ZHANG Yong(Intelligent Manufacturing College of Shazhou Vocational and Technical College,Suzhou 215699,Jiangsu,China)

机构地区：[1]沙洲职业工学院智能制造学院,江苏苏州215600

出　　处：《农业装备与车辆工程》2024年第7期40-44,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：机动车比功率(VSP)油耗估算模型精度与行驶工况相关,为了进一步提高模型精度,需要探讨短行程片段的特征参数与VSP的相关性,优化工况构建时短行程片段筛选参数的选择。基于车辆实际道路行驶数据,通过SPSS软件对VSP和行驶工况特征参数进行相关性分析。结果表明,影响VSP的主要的特征参数是加、减速段平均加速度,次要特征参数是平均行驶速度。在应用短行程法构建行驶工况时,以上述2个特征参数作为短行程片段筛选的依据,进而构建的行驶工况也会在一定程度上提高VSP油耗估算模型的精度。The accuracy of the vehicle specific power(VSP)fuel consumption estimation model was related to the driving conditions.In order to further improve the accuracy of the model,it was necessary to explore the correlation between the characteristic parameters of short travel segments and VSP,and optimize the selection of parameters for selecting short travel segments during the construction of driving conditions.Based on actual road driving data of vehicles,correlation analysis between VSP and driving condition characteristic parameters was conducted using SPSS software.The results indicate that the main characteristic parameter affecting VSP was the average acceleration during acceleration and deceleration,while the secondary characteristic parameter was the average driving speed.When applying the short travel method to construct driving conditions,using the above two characteristic parameters as the basis for selecting short travel segments,the constructed driving conditions will also improve the accuracy of the VSP fuel consumption estimation model to a certain extent.

关 键 词：行驶工况 特征参数 VSP 相关性 

分 类 号：U467.1[机械工程—车辆工程]