Vehicle purpose identification method and device

Abstract

The embodiment of the invention provides a vehicle purpose identification method and device. The method comprises the steps of obtaining vehicle historical use data of a to-be-identified vehicle; based on the historical use data of the vehicle, extracting a first vehicle purpose feature corresponding to the to-be-identified vehicle; respectively calculating the similarity between the first vehicle purpose feature and a second vehicle purpose feature corresponding to the vehicles of different purpose types in the first sample data set; determining a second sample data set in the first sample data set based on the similarity; and determining the vehicle purpose of the to-be-identified vehicle based on the proportions of the vehicles of different purpose types in the second sample data set. The sample data set is screened by comparing the similarity between the historical use data of the to-be-identified vehicle and the vehicle use feature in the sample data set, and the vehicle purpose of the to-be-identified vehicle is determined by using the proportions of the vehicles with different purpose types in the screened sample data set. The purpose data of different stages of the whole life cycle of the vehicle are classified in a refined mode, and the accuracy of a data analysis result is guaranteed.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a vehicle use identification method and device. Background technique [0002] New energy vehicle batteries with different uses (private cars, commercial vehicles) behave differently in terms of capacity attenuation, internal resistance increase, and charging and discharging laws throughout the life cycle. The mixed data of private cars and commercial vehicles will interfere with the analysis of indicators such as battery capacity and internal resistance, such as the mining of thermal runaway characteristics and deviations in the quantitative analysis of algorithm thresholds, etc., resulting in the results of data analysis not having practical guiding significance. Therefore, how to accurately identify the purpose of the vehicle is of great significance to the data analysis of the battery and the research and development of new energy vehicles. [0003] At present, th...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a vehicle use identification method and device to overcome the problem in the prior art that it is difficult to accurately identify the vehicle's full life cycle use

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