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Battery power detection method

A detection method and battery power technology, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve the problem of low accuracy of battery power detection, and achieve the effect of small power detection error and high charging accuracy

Active Publication Date: 2020-05-22
GOERTEK INC
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Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a battery power detection method to solve the problems of low battery power detection accuracy and large errors in current products.

Method used

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Embodiment Construction

[0018] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0019] In order to describe the battery power detection method of the present invention in detail, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] figure 1 The flowchart of the method for detecting battery power according to the embodiment of the present invention is shown.

[0021] Such as figure 1 As shown, the battery power detection method in the embodiment of the present invention includes the following steps:

[0022] S110: Obtain the voltage value information an...

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Abstract

The invention provides a cell electric quantity detection method. The method comprises steps that the voltage value information and the current value information of a cell in a bare cell state in a charging process are acquired through an external voltage current detector, and a charging curve of the cell in the charging process is drafted according to the voltage value information and the current value information; when the cell assembled in a product is charged, the present charging voltage value of the cell is acquired through ADC in real time, the present charging current value of the cell is determined according to the present charging voltage value and the corresponding relationship of the charging curve of the cell, and present total electric quantity of the cell is acquired according to the present charging current value and the present charging voltage value. The method is advantaged in that the present total electric quantity of the cell of the product can be acquired in real time, and thereby precise charging of the product can be realized.

Description

technical field [0001] The invention relates to the technical field of product battery detection, and more specifically, to a battery power detection method. Background technique [0002] Rechargeable batteries are reusable batteries, usually lead-acid, nickel-cadmium, nickel-metal hydride, lithium-ion, fuel cells, etc. In recent years, with the wide application of portable products, more and more products use lithium batteries as their main power supply. Lithium batteries have the following characteristics: small size, high energy density, no memory effect, high cycle life, high voltage battery, self- Low discharge rate, environmental protection and no pollution, etc., especially in the power supply of notebook computers, its excellent high energy advantage is brought into full play. However, due to the high energy density and unique chemical characteristics, there are also hidden dangers in the safety and stability of lithium-ion batteries. For example, overcharging and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3842
CPCG01R31/3842
Inventor 刘志军王进强
Owner GOERTEK INC
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