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Quick estimating system of remaining battery power and method thereof

A technology of remaining battery power and remaining power, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve problems such as poor battery accuracy, and achieve the effects of high accuracy, easy management, and simple structure

Inactive Publication Date: 2012-06-27
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, when the open circuit voltage method is used to estimate the remaining battery power, the battery must be left to stand for a long time to reach a stable state, so it is only suitable for estimating the remaining battery power when the electric vehicle is parked.
The ampere-hour law is easily affected by the accuracy of current measurement. In the case of high temperature or severe current fluctuation, the accuracy of battery remaining power estimation is very poor, which cannot meet the needs of practical applications.

Method used

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  • Quick estimating system of remaining battery power and method thereof
  • Quick estimating system of remaining battery power and method thereof

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Embodiment Construction

[0029] The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.

[0030] Such as figure 1 As shown, the fast battery remaining power estimation system of the present invention includes a battery charge and discharge control module 102, a battery test model library 104, a voltage characteristic extraction module 105, a current characteristic extraction module 106, a remaining power analysis module 107 and a battery remaining power storage display module 108. Wherein, the battery charge and discharge control module is connected with the battery 101, the battery test model library 104, the voltage feature extraction module 105, the current feature extraction module 106 and the remaining power analysis module 107 are all connected with the battery charge and discharge control module 102, and the rema...

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Abstract

The invention discloses a quick estimating system of remaining battery power, which comprises a battery charge-discharge control module, a battery test model base, a voltage characteristic extraction module, a current characteristic extraction module, a remaining power analyzing module and a battery remaining power storage displaying module. The quick estimating system of the remaining battery power and a method of the system estimate the remaining power by conducting corresponding charging and discharging on a battery and have the advantages of being simple in structure, high in accuracy and capable of providing information of battery remaining power for users in real time, thereby facilitating management of battery use.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a fast battery remaining power estimation system and method thereof. Background technique [0002] With the rapid development of various electric energy storage devices, the estimation of the remaining power of the battery has begun to attract people's attention. Only by accurately estimating the remaining power of the battery can the user know the remaining battery life in time, thereby eliminating concerns about insufficient power during battery use. [0003] In particular, countries all over the world are paying attention to the two issues of environmental protection and energy crisis. Compared with traditional fuel vehicles, electric vehicles can achieve zero emissions. Therefore, electric vehicles will become the development direction of the future automobile industry. In an electric vehicle, the battery is directly used as an energy supply component, and its working co...

Claims

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Application Information

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IPC IPC(8): G01R31/36
Inventor 李杰黄亦翔
Owner SHANGHAI JIAO TONG UNIV
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