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Method and device for calculating remaining charging time

A technology of charging time and time, which is applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of inability to accurately monitor the remaining charging time of batteries and low charging control accuracy

Pending Publication Date: 2021-03-26
HUBEI JINQUAN NEW MATERIALS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] The present invention provides a method and device for calculating the remaining charging time to solve the problem of low charging control accuracy caused by using the ampere-hour integral to calculate the SOC of the charging cell in the prior art and the inability to accurately monitor the remaining charging of the cell time technical issues

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  • Method and device for calculating remaining charging time
  • Method and device for calculating remaining charging time
  • Method and device for calculating remaining charging time

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0053] It should be noted that the terms "first" and "second" in the specification, claims and drawings of the present invention are used to distinguish different objects, rather than to limit a specific order. The following embodiments of the present invention may be implemented independently, or may be implemented in combination with each other, which is not specifically limited in the embodiments of the present invention.

[0054] figure 1 It is a flowchart of a method for calculating remaining charging time p...

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Abstract

The invention discloses a method and device for calculating the remaining charging time, and the method comprises the steps: calculating an SOC correction value through employing the capacity corresponding to a feature point, and calculating the remaining charging time of a to-be-measured cell through employing the correction value; the technical problems that in the prior art, the charging control precision is low due to the fact that ampere-hour integration is used for calculating the SOC of the charging battery cell, and the remaining charging time of the battery cell cannot be accurately monitored are solved, the charging control precision is improved, the charging time of the battery cell is accurately monitored, accidents such as a fire caused by overcharging are avoided, and the technical effect of reliable and safe electric quantity management is provided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of batteries, and in particular to a method and device for calculating remaining charging time. Background technique [0002] At this stage, the national standard is usually used to charge the lithium iron phosphate battery cell, and the SOC of the battery cell is calculated by using the ampere-hour integral. [0003] However, due to the error of the current sensor, the error of the ampere-hour integral will continue to accumulate as the charging time increases, and the SOC of the battery cell cannot be corrected during continuous charging, so the ampere-hour integral is used to calculate the charging state of charge SOC will eventually cause the calculated state of charge SOC to deviate too much from the real value; this will lead to low charging control accuracy, and the remaining charging time of the battery cannot be accurately monitored. Contents of the invention [0004] The pr...

Claims

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Application Information

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IPC IPC(8): G01R31/387G01R31/367
CPCG01R31/387G01R31/367
Inventor 尚梦瑶潘亦斌万里平
Owner HUBEI JINQUAN NEW MATERIALS CO LTD
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