The invention relates to a method for constructing a vehicle working condition, which comprises the following steps of: 1) uniformly collecting vehicle driving data from a city, and carrying out short-stroke division on the vehicle driving data according to the standard of the short-stroke division: a process of starting a certain vehicle from one idle speed state to the next idle speed state; wherein the driving data comprises driving characteristic parameters; (2) carrying out contribution rate calculation on the short-stroke driving characteristic parameters, and screening out a plurality of driving characteristic parameters with high contribution rates to serve as principal components; the contribution rate being the contribution rate of the corresponding driving characteristic parameter to the short stroke description; 3) clustering the short strokes based on the principal components, and at least dividing the short strokes into a congestion type and an unblocked type; and 4) selecting a plurality of short strokes from each classification to form the urban comprehensive driving condition, wherein the proportion of the number of the short strokes in each classification is the same as the proportion of the total number of the short strokes in each classification.
本发明涉及一种车辆工况的构建方法,包括以下步骤:1)从城市中均匀采集汽车行驶数据,对汽车行驶数据进行短行程划分,短行程划分的标准为:某车辆从一个怠速状态开始到下一个怠速状态开始的过程;行驶数据包括行驶特征参数;2)对短行程的行驶特征参数进行贡献率计算,筛选出若干个贡献率高的行驶特征参数作为主成分;贡献率为对应行驶特征参数对短行程描述的贡献率;3)基于主成分,对短行程进行聚类,将短行程至少分为拥堵和畅通两类;4)从每个分类中选出若干个短行程构成城市综合行驶工况,选出的各分类中短行程数量之间的比例与各分类中短行程总数的比例相同。
Vehicle working condition construction method
一种车辆工况的构建方法
2021-12-03
Patent
Electronic Resource
Chinese
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