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Monitoring of battery state of charge

A state of charge, battery technology, applied in secondary batteries, measuring current/voltage, circuits, etc.

Inactive Publication Date: 2013-01-02
ENERDEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method requires extensive computation on the microcontroller, which is a bottleneck for small microcontroller chips

Method used

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  • Monitoring of battery state of charge
  • Monitoring of battery state of charge
  • Monitoring of battery state of charge

Examples

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Embodiment Construction

[0025] The embodiments disclosed herein are not intended to be exclusive or to limit the invention to the specific forms disclosed in the following detailed description. Rather, the embodiments were chosen and described to enable one skilled in the art to employ their teachings. Although the invention primarily encompasses the monitoring of the state of charge of batteries used in vehicles or energy grid storage systems, it should be understood that the invention may be applied to batteries providing power to other devices.

[0026] The invention is not limited by the illustrated order of acts or events, as some acts may occur in different orders and / or concurrently with other acts or events. Moreover, not all illustrated acts or events are required to implement a methodology in accordance with the invention.

[0027]The Kalman filter based approach for the control and monitoring of the system is based on a form of feedback control. First, the filter estimates the state of t...

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Abstract

Systems and methods for monitoring a state of charge of a battery are disclosed. An updated state of charge of the battery may be determined based on a measured terminal voltage of the battery, a measured current of the battery, and a value of at least one battery parameter selected from a plurality of values based on a prior state of charge of the battery.

Description

[0001] related application [0002] This application claims the benefit of U.S. Provisional Patent Application No. 61 / 326,881, filed April 22, 2010, titled System and Method for Real-Time Monitoring of Battery State of Charge, and filed 10216-7, the disclosure of which is in its entirety The contents are expressly incorporated herein by reference. technical field [0003] The present invention relates to monitoring the state of charge of a battery, and more particularly to a system and method for real-time monitoring of the state of charge of a battery. Background technique [0004] Accurate monitoring of the battery system state of charge (SOC) is a common problem in battery applications. There are four main methods for monitoring SOC. One method is to determine the SOC by dividing the charge remaining amount in the battery system divided by the full charge capacity of the battery system. However, it is often unusual to directly measure charge headroom in battery systems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG01R31/3624G01R31/3651G01R31/3842G01R31/367Y02E60/10H01M10/48G01R31/389G01R19/16528G01R31/3648
Inventor 王正明查德·哈佐格
Owner ENERDEL