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Method and device for estimating battery charging time

A charging time and battery charging technology, applied in the direction of secondary battery charging/discharging, secondary battery, secondary battery repair/maintenance, etc., can solve the problems of complex calculation, poor accuracy, etc. Avoid the effect of frequent jumps

Active Publication Date: 2022-05-20
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a method and system for estimating battery charging time, so as to at least solve the problems of computational complexity and poor accuracy in battery charging time estimation

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  • Method and device for estimating battery charging time
  • Method and device for estimating battery charging time
  • Method and device for estimating battery charging time

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Embodiment Construction

[0039] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0040] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] figure 1 It is a schematic flowchart of a method for estimating battery charging time provided by an embodiment of the present invention. Such as figure 1 As shown, the present invention provides a method for estimating battery charging time, the method comprising:

[0042] Based on the charging initial temperature of the battery and its change value, obtain the P charging times A1, ..., Ap corresponding to the P voltage intervals experienced by the battery from the charging initial volt...

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Abstract

The invention relates to the technical field of batteries, and provides a method for estimating battery charging time, including: establishing a charging time MAP table; the MAP table includes N temperature intervals, M voltage intervals and element Anm; the N The interval formed by the temperature intervals is single-valued and continuous, and the interval formed by the M voltage intervals is single-valued and continuous; the element Anm in the MAP table indicates that when the charging current is the requested current, the temperature is within the temperature interval n When , the charging time from the low-voltage terminal of the voltage interval m to the high-voltage terminal; based on the initial charging temperature of the battery and its change value, obtain the corresponding P voltage intervals that the battery has experienced from the initial charging voltage to the charging cut-off voltage. The P charging times A1,...,Ap; 1≤P≤M; the P charging times are summed to obtain the estimated charging time of the battery. Embodiments of the present invention are suitable for estimating battery charging time.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method and a device for estimating battery charging time. Background technique [0002] The charging time of pure electric and hybrid electric vehicles is a common concern of people. Accurate charging time is convenient for users to arrange their own time reasonably and improve user experience. [0003] The calculation method of the current remaining charging time is obtained by dividing the remaining charging ampere-hour capacity of the battery by the input current of the power battery, and considering the changes in current, temperature and voltage during the charging process, multiply the obtained remaining charging time by a fixed The correction coefficient, and finally output a charging remaining time. However, this method has the following disadvantages: the remaining ampere-hour capacity is obtained by subtracting the remaining ampere-hour capacity from the rated amp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44
CPCH01M10/443Y02E60/10
Inventor 马子月张建彪高攀龙李皓月朱枫
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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