Power battery health state online evaluation system and method based on internet of vehicles

A technology for power battery and state of health, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as analysis, and achieve the effect of standardizing use behavior, reducing operating costs, and extending service life

Inactive Publication Date: 2019-09-06
深蓝汽车科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology does not further analyze the correlation of health factors affecting the battery health status. Through the correlation analysis result data, the user is provided with the information of the factors that cause the battery health status to be bad, and further corrects the user's own bad health status in a timely manner. Provide advice on operating habits and prolonging battery life

Method used

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  • Power battery health state online evaluation system and method based on internet of vehicles
  • Power battery health state online evaluation system and method based on internet of vehicles
  • Power battery health state online evaluation system and method based on internet of vehicles

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Embodiment 1

[0048] Please refer to figure 1 , the system includes a vehicle terminal, a big data analysis platform and a user access interface.

[0049]Vehicle-mounted terminal: The vehicle-mounted terminal consists of a data acquisition unit, a storage unit, and a sending unit. Equipped in new energy vehicles, it receives various data uploaded from the CAN network, packs them and transmits them to the big data analysis platform through the wireless network. The wireless network may be any of known communication networks such as 2G / 3G / 4G. Data includes user driving behavior, battery data, motor data, and charging data.

[0050] Big data analysis platform: composed of receiving unit, judging unit, computing unit, storage and delivery unit. It is used to receive and analyze the data uploaded by the vehicle-mounted terminal, judge the operating conditions of the health calculation model and the battery health-related factor analysis model, call the model calculation when the budget is met...

Embodiment 2

[0053] For the convenience of enhancing the understanding of the present invention, below in conjunction with the attached figure 2 Further explain the method of evaluating the state of health of the power battery.

[0054] figure 2 A processing flowchart of the remote fault diagnosis method in the embodiment of the present invention is given. Such as figure 2 As shown in the method, this power battery health state assessment method includes steps:

[0055] S1: The vehicle-mounted terminal completes data collection and uploads the data to the big data analysis platform;

[0056] In the specific implementation, the vehicle-mounted terminal acquisition unit will pack different types of data on the vehicle CAN bus according to different data acquisition frequencies, the storage unit receives the packaged data to complete local storage, and the sending unit transmits the data of the storage unit according to the upload cycle To the big data analysis platform, the upload cyc...

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Abstract

The invention provides a power battery health state online evaluation system and method based on internet of vehicles. The method comprises the following steps: realizing real-time collection and uploading of different frequencies on the CAN data through the internet of vehicles, through a power battery health state evaluation model established by the big data analysis platform, analyzing the influence degree on the battery health degree by various influence elements when the uploaded data satisfies a judgment condition for model running, and comprehensively evaluating multiple battery healthdegree influence elements. By online analyzing the battery health state, aftersales personnel of the enterprise can understand the market vehicle battery state in time, thereby quickly replying the market vehicle battery fault processing and spare parts supply; on the other hand, the relevancy analysis result data and suggestion are pushed to the user by analyzing the health degree influence relevancy, the user can directly understand the health status of the battery of the vehicle and the influence element of the battery health status conveniently, thereby reminding the user to correct the bad operation habits in time, and the service life of the battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of vehicle power battery systems, and in particular relates to the health status evaluation technology of power batteries. Background technique [0002] Under the joint promotion of energy saving, emission reduction and green environmental protection, electric vehicles have received more and more attention as a new energy vehicle. Lithium batteries have been widely used in the field of electric vehicles due to their green and environmental performance. Power battery is one of the key components of electric vehicles, and power battery technology greatly affects the performance and cost of electric vehicles. [0003] The performance of the power battery is greatly affected by the external environment during use. In addition to the influence of climate factors such as temperature / humidity, the impact of the driver's driving behavior and charging behavior on the battery's health status is also more prominent. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/382G01R31/371
CPCG01R31/367G01R31/371G01R31/382
Inventor 王贤军刁冠通贺小栩苏岭李宗华翟钧
Owner 深蓝汽车科技有限公司
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