Equipment, method and system for estimating remaining capacity of battery

A technology of battery remaining capacity and remaining capacity, which is applied in the direction of measuring electrical variables, calculating, and measuring electricity, which can solve problems such as jumps and unexpected shutdowns of equipment, and achieve the effects of improving accuracy, saving time, and simplifying the estimation process

Active Publication Date: 2014-06-11
AOTU ELECTRONICS WUHAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the battery is fully charged, the RSOC displayed on the screen may jump from 95% to 100%
Also, when the battery is fully discharged, the device may shut down unexpectedly even though the on-screen RSOC shows that there is still capacity remaining in the battery

Method used

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  • Equipment, method and system for estimating remaining capacity of battery
  • Equipment, method and system for estimating remaining capacity of battery
  • Equipment, method and system for estimating remaining capacity of battery

Examples

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Embodiment Construction

[0018] Detailed reference will be given below to examples of the present invention. Although the present invention has been illustrated and illustrated by these embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, the invention covers all alternatives, modifications and equivalents which are within the spirit and scope of the invention as defined by the appended claims.

[0019] Portions of the description below are presented in terms of steps, logical block diagrams, flows, and other symbolic representations of operations that one skilled in the data processing arts will use to efficiently explain the present invention to others skilled in the art the embodiment. In the embodiments of the present invention, programs, logic block diagrams, processes, etc. are regarded as steps in a unified sequence, which can achieve expected results. The steps are those requiring physical manipulations of physical quantities. Gene...

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Abstract

The invention discloses equipment, a method and a system for estimating remaining capacity of a battery. The equipment comprises an interface and a processing module. The interface is used for receiving information of a parameter for indicating battery status. The processing module is coupled to the interface and is used for calculating remaining capacity of a battery and capacity ratio, wherein the capacity ratio is the ratio of the calculated remaining capacity to reference capacity of the battery. The processing module is used for comparing a parameter with a reference value so as to generate a first comparison result and is used for comparing the capacity ratio with reference rate so as to generate a second comparison result. The processing module is also used for setting variation according to the first and second comparison results and changing the calculated remaining capacity with the variation. By the equipment, the method and the system for estimating the remaining capacity of the battery, estimation accuracy of the battery's remaining capacity is raised, estimation process of the battery's remaining capacity is simplified, and a lot of time is saved.

Description

technical field [0001] The present invention relates to the field of batteries, in particular to a device, method and system for estimating the remaining capacity of batteries. Background technique [0002] In the traditional battery remaining capacity (Remaining Capacity, referred to as RC) estimation method, the estimation of RC is realized by increasing or decreasing an initial RC value, wherein the initial RC value is based on the open circuit voltage of the battery from the lookup table The resulting RC value is read in , and the amount of increase / decrease in the RC value is obtained by counting the charge going into and out of the battery (which may be called "coulomb counting"). Specifically, batteries typically have specific voltage-capacity characteristics. The lookup table lists the RC values ​​corresponding to different reference voltages. In the lookup table, the RC value corresponding to each reference voltage is obtained by charging a fully discharged batter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG06F17/00G01R31/3606G01R19/16542G01R31/382G01R31/3842
Inventor 袁奕张迎国华志彬王华毅刘平
Owner AOTU ELECTRONICS WUHAN
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