Unlock instant, AI-driven research and patent intelligence for your innovation.

Power battery monitoring and early warning method

A technology for power batteries and battery cells, which is used in the measurement of electricity, electric vehicles, and measurement of electrical variables, and can solve problems such as overheating.

Active Publication Date: 2021-03-16
CHONGQING CHANGAN AUTOMOBILE CO LTD +1
View PDF15 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for problems such as overheating, the whole process from the abnormality of the battery pack to the overheating of the battery pack may only take tens of minutes
It is difficult to determine which battery cells are faulty in a short period of time from the physical level

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power battery monitoring and early warning method
  • Power battery monitoring and early warning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] refer to figure 1 and figure 2 , this embodiment provides a power battery monitoring and early warning method, including:

[0042] In S101, first obtain multiple sets of data of the same model from the big data platform (vehicle monitoring platform of the car company) that stores the battery data of the same model. One set of data indicates that the same model is in a time interval (like a month) and vehicle data uploaded within a geographical interval (such as cities located in the same region). In one set of data, total voltage data and battery cell voltage data of power batteries of multiple vehicles are recorded. For example, read the battery data uploaded by vehicles of a certain model in Chongqing in August 2020 to form a set of data, assuming that the set of data includes the total voltage data of the battery packs uploaded by 5,000 vehicles and the data of each battery cell. The individual voltage data of the body.

[0043] In S102, this step is mainly used...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a power battery monitoring and early warning method, which aims to obtain normal ranges of voltage values of all normal vehicles under the same vehicle model under different charging conditions and different electric quantities through real-time voltage values of battery pack single bodies uploaded to a big data platform by vehicles and through a big data operation analysismode, and judge the abnormal point of the battery pack of the vehicle according to the normal range of the voltage value.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a method for monitoring and early warning of power batteries. Background technique [0002] With the continuous popularization of new energy electric vehicles in major first- and second-tier cities, various market problems of electric vehicles are also particularly prominent. Among various market problems, battery-related problems are the most prominent, such as power failure, mileage attenuation, overheating problems, etc. Most of these battery problems have become the main complaints of market users. [0003] At present, the way of early warning for power batteries can only stay at the physical level, and obtain different levels of battery early warning information according to the changes in the data related to the volume of the battery pack. However, for problems such as overheating, the entire process from the abnormality of the battery pack to the overheating of the battery ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/367G01R31/396G01R31/3835
CPCG01R31/367G01R31/396G01R31/3835Y02T10/70
Inventor 徐鹏飞李宗华林富李易李小铜
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD