Patent
Method and device for charging or discharging an accumulator of unknown construction and/or capacity used in an electrical or electronic device
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TLDR
In this article, a method of charging or discharging a battery involving an indicator of low battery charge and a device for determining a charged or discharged state in which a nominal capacity of the battery is taken as the basis of the method is presented.Abstract:
A method of charging or discharging a battery (1,2) involving an indicator of low battery charge and a device for determining a charged or discharged state in which a nominal capacity of the battery is taken as the basis of the method. The battery is initially charged for a given length of time (t1) after which depending on the nominal capacity and a given (specified) charge current I1, the battery is fully charged. The battery is then re-charged for a given length of time (t2) at reduced charging current (I2). The battery is then discharged by operation of an electric or electronic consumer device, but avoiding re-charge until the lower threshold of the battery charge (low battery) is reached. The value of the actual maximum battery capacity (max capacity) is then set by the value determined by the device for determining the discharged (C-count, D-count) state of charge of the battery.read more
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Method and apparatus for calibrating a rechargeable battery
Kristoffer Ptasinski,Charles Forsberg,Sarandis Kalogeropoulos,Rickard Andersson,Petrus Evers,Anders Langberg,David Demers,Jeremy Carlson,Derek Liddle +8 more
TL;DR: In this paper, the authors present a calibration procedure for rechargeable battery for mobile telephones and other electronic devices, which is performed during a process of completely charging the battery by determining the total amount of charge accepted by the battery during the charging process, and providing a value of total charge capacity of the battery based, at least in part, on the battery's accepted charge.
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Accumulator charging method especially for mobile telephones
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Method for management of lithium battery utilized as traction battery in e.g. electric car, involves adapting control plan to total capacitance of energy storage, and determining actual state of charge of energy storage
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TL;DR: In this paper, the authors proposed a battery management method for battery management of an electrical energy storage of a vehicle, which involves alternatively charging and discharging two modules of an energy storage in a normal operation based on a preset control plan.
References
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Patent
Automatic rechargeable battery monitoring system
TL;DR: An electronic device for monitoring the charge state of a rechargeable battery consisting of a voltage sensor, a current sensor, and a microprocessor is described in this article, where the microprocessor calculates the total current discharge capacity of the battery and the present level of charge contained within the battery.
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TL;DR: In this paper, a combined battery state of charge evaluator and motor control system for an electric vehicle comprises a traction battery 10, a motor controller 14, a traction motor 11, a micro computer 16 and an interface circuit 15.
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TL;DR: In this paper, a method for determining the charging state of a rechargeable battery, in particular a nickel-cadmium accumulator, is proposed, where the charging/discharging cycles of the accumulator are evaluated in order to determine the ageing-dependent variable capacitance of the battery as well as its charging state.
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Method and apparatus for monitoring battery capacity under fast discharge conditions
TL;DR: In this article, a battery detect circuit (32) is connected to the battery with the current input of the battery and extracted from the battery measured with a sense resistor (50) and then converted to charge and discharge pulses with a V/F converter (52).
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TL;DR: In this paper, a processus de recalibrage d'evaluation de la quantite d'energie electrique contenue dans la batterie, a recharger completement the batterie.