Patent
State of charge indicator
TLDR
In this paper, a state of charge indicator of a lithium ion battery computes a cell open circuit voltage from a SOC-cell voltage characteristic map, and displays the SOC on a display device.Abstract:
A state of charge indicator of a lithium ion battery computes a state of charge (SOC) corresponding to a cell open circuit voltage from a SOC-cell open circuit voltage characteristic map, and displays the SOC on a display device. Herein, the SOC-cell open circuit voltage characteristics are obtained by defining the battery charge amount when the open circuit voltage of the cell is 3.9 V as SOC=100%, and defining the battery charge amount when the open circuit voltage of the cell is 3.5 V as SOC=100%. By defining SOC=100% and SOC=0% in this way, the SOC can be correctly computed and displayed even if the battery has deteriorated.read more
Citations
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Patent
Battery management system and driving method thereof
Gye-Jong Lim,Soo-Seok Choi,Young-Jo Lee,Yong-Jun Tae,Han-Seok Yun,Se-Wook Seo,Beom-Gyu Kim,Ho-Young Park +7 more
TL;DR: In this article, a battery management system (BMS) includes at least one sub-BMS and a main BMS, and the main MS receives the activation signal and determines the operating state of the at least two sub-MSs.
Patent
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TL;DR: In this paper, a battery system and method of providing a state of charge of for the system in one embodiment includes at least one first cell, the at least first cell having a first battery chemistry exhibiting a first open circuit potential.
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Patent
Method for determining state of charge of a battery by measuring its open circuit voltage
TL;DR: In this paper, a method for determining the state of charge (SOC) of a battery by measuring its open circuit voltage (OCV) either with the battery in a fully rested state of chemical and electrical equilibrium or an active state during a period in which the battery settles after charge or discharge is stopped.
Patent
State-of-charge estimating device of secondary battery
TL;DR: In this paper, a state-of-charge (SOC) estimating device and method for a secondary battery that estimates the SOC of the secondary battery with high precision when variation takes place in the parameters of the battery model, even if the input current is constant.
References
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Patent
Battery monitor and method for providing operating parameters
TL;DR: In this article, a battery monitor includes a current sensor for sensing battery current, a voltage sensor for detecting battery voltage, and a temperature sensor for measuring battery temperature, which can be used for many different battery applications.
Patent
Battery charge state determination
Daniele Reni,Michael Culbert +1 more
TL;DR: In this article, the battery voltage corrected for temperature and series resistance effects is used to compute charge state by table look up or algebraically, which is used for computing the charge state of a battery.
Patent
Method and apparatus for measuring the state-of-charge of a battery system
TL;DR: In this article, a method and apparatus for measuring the state of charge of a battery is provided, which includes a metering system to communicate the state-of-charge to an operator of a device powered by the battery.
Patent
Electronic battery tester with tailored compensation for low state-of charge
TL;DR: In this article, an improved electronic device for testing or monitoring storage batteries that may be only partially charged is described, which can provide either a proportional numerical readout, displayed in appropriate battery measuring units, or a corresponding qualitative assessment of the battery's relative condition based upon its dynamic conductance and electrical rating.
Patent
Method and apparatus for charging and testing batteries
TL;DR: In this paper, an apparatus for charging and testing a rechargeable battery is adapted to determine certain conditions, including defect and characteristics, of the battery, and determines battery voltage, capacity and charge acceptance capability.