Battery state-of-charge (SOC) value evaluation method and device

A technology of battery state of charge and state of charge, applied in the field of communication, can solve the problem of low SOC accuracy, and achieve the effects of solving the problem of low SOC accuracy, increasing correction opportunities, and improving estimation accuracy

Inactive Publication Date: 2017-02-15
ZTE CORP
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Problems solved by technology

[0006] The present invention provides a method and device for estimating the SOC value of the battery state of charge, to at le

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  • Battery state-of-charge (SOC) value evaluation method and device
  • Battery state-of-charge (SOC) value evaluation method and device
  • Battery state-of-charge (SOC) value evaluation method and device

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[0031] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

[0032] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.

[0033] In this embodiment, a method for estimating the SOC value of the battery state of charge is provided, figure 1 is a flowchart of a method for estimating a battery state of charge SOC value according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0034] Step S102, detecting whether the battery is in a charging state or a dischargin...

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Abstract

The present invention provide a battery SOC value evaluation method and device, wherein the method comprises the steps of detecting whether a battery is located in a charging state or a discharging state; on the condition that the battery is located in the charging state or the discharging state, determining the SOC value of the battery via an ampere-hour integral method; when the battery is not in the charging state and the discharging state, and on the condition that a charging loop or a discharging loop of the battery is disconnected, determining the SOC value according to a correspondence relation of the battery open circuit voltage of the battery and the SOC value. According to the present invention, the problem that the accuracy of the SOC value valuated by the battery SOC evaluation method is not high is solved, and the SOC evaluation precision is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for estimating the SOC value of the state of charge of a battery. Background technique [0002] The communication power supply is a device that provides energy for communication equipment such as communication base stations or communication equipment rooms, and the battery is an important part of the communication power supply, which can provide backup power for communication equipment. In recent years, as various countries pay more and more attention to energy conservation, emission reduction and development of low-carbon economy, lithium iron phosphate (LiFePO4) batteries have been more and more widely used due to their unique advantages. Compared with the lead-acid batteries that have been widely used before, lithium iron phosphate batteries have the advantages of long cycle life, good high temperature performance, large capacity, no memory effect, light w...

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Application Information

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IPC IPC(8): G01R31/36
CPCG01R31/36
Inventor 叶彦宏
Owner ZTE CORP
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