Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Battery target SOC (state of charge) determining method and apparatus

A determination method and battery technology, which can be used in measuring devices, measuring electricity, measuring electrical variables, etc., and can solve problems such as low target SOC accuracy.

Active Publication Date: 2017-05-24
컨템포러리엠퍼렉스테크놀로지씨오리미티드
View PDF11 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of this, an embodiment of the present invention provides a method and device for determining a battery target SOC, which is used to solve the problem of the accuracy of the target SOC obtained based on the corresponding relationship between the calibrated SOC and the voltage under static conditions in the prior art. low problem

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
  • Battery target SOC (state of charge) determining method and apparatus
  • Battery target SOC (state of charge) determining method and apparatus
  • Battery target SOC (state of charge) determining method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] In order to solve the above-mentioned problems existing in the prior art, the embodiment of the present invention provides a method for determining the target SOC, please refer to figure 1 , which is a schematic flowchart of Embodiment 1 of the method for determining the battery target SOC provided by the embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0074] S101. When a current flows through the battery, collect the electric quantity of the battery at each sampling point.

[0075] Specifically, when a current flows through the battery, the battery may be in a charging state, or the battery may be in a discharging state, and at this time, the electric quantity may be collected at each sampling point in the battery.

[0076] In the embodiment of the present invention, when collecting the power of the battery at each sampling point, it can be realized by integrating the current with respect to time; or, it c...

Embodiment 2

[0125] Based on the method for determining the target SOC of the battery provided in the first embodiment above, the embodiment of the present invention provides a specific implementation manner of the method for determining the target SOC of the battery.

[0126] Specifically, please refer to image 3 , which is a schematic flowchart of Embodiment 2 of the method for determining the battery target SOC provided by the embodiment of the present invention, as shown in image 3 As shown, the method includes the following steps:

[0127] S301. When a current flows through the battery, collect the electric quantity of the battery at 50 sampling points in real time.

[0128] S302. Determine whether the current of the battery is less than the current threshold and whether the temperature of the battery is greater than the temperature threshold within a specified period of time; if yes, execute S303; if not, execute S301.

[0129] S303. Determine the type of electric quantity of the...

Embodiment 3

[0149] Based on the method for determining the target SOC of the battery provided in the first embodiment above, the embodiment of the present invention further provides an embodiment of a device for implementing each step and method in the above method embodiment.

[0150] Please refer to Figure 4 , which is a functional block diagram of an apparatus for determining a battery target SOC provided by an embodiment of the present invention. Such as Figure 4 As shown, the device includes:

[0151] The collection unit 41 is used to collect the electric quantity of the battery at each sampling point when a current flows through the battery;

[0152] A determination unit 42, configured to determine the current state of the battery according to the power of the battery at each sampling point;

[0153] A selection unit 43, configured to select a target correspondence from at least two correspondences between specified SOC and voltage according to the current state of the battery;...

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 embodiments of the present invention provide a battery target SOC (state of charge) determining method and apparatus. According to the embodiments of the invention, current flows through a battery, the electric quantity of sampling points of the battery is acquired; the current state of the battery is determined according to the electric quantity of the sampling points of the battery; a target corresponding relation is selected from at least two corresponding relations between specified SOC (states of charge) and voltages according to the current state of the battery; and a target SOC (states of charge) is determined according to the target corresponding relation. With the battery target SOC (state of charge) determining method and apparatus provided by the embodiments of the present invention adopted, the problem of low accuracy of target states of charge which is obtained based on corresponding relations between SOC (states of charge) and voltages under a static condition can be solved.

Description

[0001] 【Technical field】 [0002] The present invention relates to the technical field of batteries, in particular to a method and device for determining a target SOC of a battery. [0003] 【Background technique】 [0004] At present, accurately obtaining the state of charge (State Of Charge, SOC) of the battery is a problem that needs to be solved in the battery field. In the prior art, the SOC data of the battery is generally obtained by obtaining the voltage value of the battery under the static condition based on the corresponding relationship between the SOC and the voltage calibrated under the static condition; by battery condition. [0005] In the prior art, since the corresponding relationship between SOC and voltage is obtained under static conditions for a long enough time, it is required that the collected voltage values ​​also need to be kept for a long enough time under static conditions to ensure that the obtained The voltage is stable, so accurate target SOC dat...

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): G01R31/36
CPCG01R31/367G01R31/3835
Inventor 颜昱谭俐
Owner 컨템포러리엠퍼렉스테크놀로지씨오리미티드
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com