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Vehicle performance curve trend fitting method and device, equipment and storage medium

A curve and performance technology, applied in the field of vehicle performance curve trend fitting method, device, equipment and storage media, can solve the problems of long time consumption, slow extraction speed, low accuracy, etc., to speed up speed and efficiency, save cost time, improved authenticity and accuracy

Pending Publication Date: 2021-12-07
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a vehicle performance curve trend fitting method, device, equipment and storage medium, aiming to solve the problem of slow extraction of vehicle performance curve trend in the prior art, long time-consuming, and low accuracy. Technical problems with trend distortion

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  • Vehicle performance curve trend fitting method and device, equipment and storage medium
  • Vehicle performance curve trend fitting method and device, equipment and storage medium
  • Vehicle performance curve trend fitting method and device, equipment and storage medium

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Embodiment Construction

[0045] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] The solution of the embodiment of the present invention is mainly: by obtaining the initial burr scale of the vehicle performance curve; using the scalar value of the initial burr scale as the value of the only hyperparameter, traversing each point of the vehicle performance curve to obtain All inflection points; remove the burr inflection points in all the inflection points, and perform trend fitting on the remaining inflection points to obtain the inflection point trend line, which improves the authenticity and accuracy of the trend line, and speeds up the speed and efficiency of vehicle performance curve trend extraction , which saves time spent on vehicle performance curve trend extraction, avoids trend distortion, provides an effective basis for traffic data analysis and application, and solves the problem ...

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Abstract

The invention discloses a vehicle performance curve trend fitting method and device, equipment and a storage medium. The method comprises the following steps: acquiring an initial burr scale of a vehicle performance curve; traversing each point of the vehicle performance curve by taking the scalar value of the initial burr scale as a value of a unique super parameter to obtain all inflection points; and removing burr inflection points in all the inflection points, carrying out trend fitting on the remaining inflection points, and obtaining an inflection point trend line, so that the authenticity and accuracy of the trend line can be improved, the vehicle performance curve trend extraction speed and efficiency are improved, the time consumed by vehicle performance curve trend extraction is saved, trend distortion is avoided, and an effective basis is provided for traffic data analysis and application.

Description

technical field [0001] The invention relates to the technical field of traffic data analysis, in particular to a vehicle performance curve trend fitting method, device, equipment and storage medium. Background technique [0002] The electronic and intelligent development of automobiles is changing with each passing day. The vehicle performance curve is of great significance for the data analysis and application of the intelligent network connection of transportation. The existing method is through various curve smoothing methods such as: moving average (Moving Average, MA) , and curve fitting methods such as polynomial fitting for trend extraction of vehicle performance curves. [0003] However, the existing vehicle performance curve trend extraction methods have the defect of trend distortion, that is, the calculated trend peak value is not the peak value of the original curve, but a peak value that is significantly lagging behind the original real peak value, and the trend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06N20/00
CPCG06F30/27G06N20/00
Inventor 余亮陈秀余翔宇
Owner DONGFENG COMML VEHICLE CO LTD
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