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Intelligent battery state of health detection method used for electric vehicle sharing charging pile

A technology for battery health status and electric vehicles, applied in electric vehicle charging technology, measuring electricity, measuring devices, etc.

Active Publication Date: 2017-10-24
NANJING NENGRUI ELECTRIC POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rapid detection of battery health status is a blank in the industry

Method used

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  • Intelligent battery state of health detection method used for electric vehicle sharing charging pile
  • Intelligent battery state of health detection method used for electric vehicle sharing charging pile
  • Intelligent battery state of health detection method used for electric vehicle sharing charging pile

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Embodiment Construction

[0051] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0052] The invention proposes an intelligent big data battery health state detection method for electric vehicle shared charging, which can realize the evaluation of the battery health state under the electric vehicle charging state

[0053] like figure 1 and figure 2 As shown, the intelligent battery health state detection method for electric vehicle shared charging piles according to the embodiment of the present invention includes the following steps:

[0054] Step S1, tracking the...

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Abstract

The invention provides an intelligent battery state of health (SOH) detection method used for an electric vehicle sharing charging pile. The intelligent battery SOH detection method comprises steps that power battery data of user application is tracked, and the power battery data is categorized and stored; the actual measurement current, the end voltage, and the surface temperature of the power battery data are used as input samples, and the training data set of the power battery data is established, and then an LSSVM regression model is acquired; a power battery SOH training model is established according to parameters, and is used for health estimation of a current charging battery unit; a battery current maximum capacity is used as a SOH evaluation index, and a power battery SOH model is established, and is optimized; voltage, current, temperature, and time information of a database are transmitted to a monitoring platform by a communication protocol, and the monitoring platform is used to estimate the SOH of the battery. By adopting a big data analysis method, the establishing of the battery data model is completed, and during a charging process, SOH of energy storage systems of all of users is evaluated.

Description

technical field [0001] The invention relates to the technical field of battery state of health estimation, in particular to an intelligent battery state of health detection method for electric vehicle shared charging piles. Background technique [0002] With the development of the electric vehicle industry, lithium-ion batteries have been widely used in the field of electric vehicle energy storage. Due to the limited charging and discharging life of the battery, and improper battery management will accelerate the aging of the battery, increase the probability of battery failure, lead to the degradation of electric vehicle performance, and may even cause fire and explosion. There are many difficulties in the practical application of general battery life estimation methods: First, different electric vehicle manufacturers use different battery types and technical routes according to their own corporate advantages and different positioning; And the capacity is relatively limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG01R31/367G01R31/382G01R31/392Y04S30/12Y02T90/167
Inventor 孙金良刘国鹏盛翰民顾进飞孙雷
Owner NANJING NENGRUI ELECTRIC POWER TECH CO LTD
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