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1. WO2009007885 - METHOD AND DEVICE FOR DETERMINING THE STATE OF CHARGE OF A BATTERY

Publication Number WO/2009/007885
Publication Date 15.01.2009
International Application No. PCT/IB2008/052676
International Filing Date 03.07.2008
IPC
G01R 31/36 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge
CPC
G01R 31/3648
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
3644Constructional arrangements
3648comprising digital calculation means, e.g. for performing an algorithm
G01R 31/374
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
374with means for correcting the measurement for temperature or ageing
G01R 31/392
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
392Determining battery ageing or deterioration, e.g. state of health
H01M 10/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL] (AllExceptUS)
  • MARTENS, Hubert, C., F. [NL]/[NL] (UsOnly)
  • NOTTEN, Petrus, H., L. [NL]/[NL] (UsOnly)
Inventors
  • MARTENS, Hubert, C., F.
  • NOTTEN, Petrus, H., L.
Agents
  • VAN VELZEN, Maaike, M.
Priority Data
07112025.709.07.2007EP
07115454.631.08.2007EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND DEVICE FOR DETERMINING THE STATE OF CHARGE OF A BATTERY
(FR) PROCÉDÉ ET DISPOSITIF POUR DÉTERMINER L'ÉTAT DE CHARGE D'UNE BATTERIE
Abstract
(EN)
For medical implants it is not only important to have a battery powering the implant with a long run-time, but to know exactly at any point in time how long the remaining run-time is. On the other hand the implant together with its battery shall be as user- friendly as possible requiring no or hardly any interaction with the device except for recharging of the battery. To better address these concerns, a method for determining the state of charge of a battery is suggested comprising the steps: charging the battery, discharging of the battery, predicting the state of charge of the battery using a recharge prediction unit, wherein the recharge prediction unit is disconnected from the battery during the discharging of the battery. The prediction of the state of charge of the battery during the discharge of the battery, i.e. during powering of a device connected to the battery, without carrying out any measurements during the discharging of the battery, enables a local separation of the battery or the implant powered by the battery and the recharge prediction unit during the discharge cycle of the battery.
(FR)
Dans le domaine des implants médicaux, il est important non seulement de disposer d'une batterie pour alimenter l'implant sur une longue durée, mais également de connaître à tout moment le temps de fonctionnement restant de la batterie. D'autre part, l'implant et sa batterie doivent être aussi faciles à utiliser que possible et ne doivent nécessiter que très peu voire aucune interaction avec le dispositif, excepté pour recharger la batterie. Pour mieux répondre à cette exigence, un procédé pour déterminer l'état de charge d'une batterie est suggéré, le procédé comprenant les étapes consistant à : charger la batterie, décharger la batterie, prédire l'état de charge de la batterie par l'utilisation d'une unité de prédiction de recharge. L'unité de prédiction de recharge est déconnectée de la batterie pendant la décharge de la batterie. La prédiction de l'état de charge de la batterie pendant la décharge de la batterie, c'est-à-dire, pendant l'alimentation d'un dispositif connecté à la batterie, sans effectuer de mesure pendant la décharge de la batterie, permet une séparation locale de la batterie ou de l'implant alimenté par la batterie et de l'unité de prédiction de recharge pendant le cycle de décharge de la batterie.
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