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1. WO2012027736 - MONITORING A RECHARGEABLE BATTERY WITH MULTIPLE PARAMETER UPDATE RATES

Publication Number WO/2012/027736
Publication Date 01.03.2012
International Application No. PCT/US2011/049515
International Filing Date 29.08.2011
IPC
G01R 31/36 2006.01
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 31/367
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]
367Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/3835
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]
382Arrangements for monitoring battery or accumulator variables, e.g. SoC
3835involving only voltage measurements
G01R 31/389
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]
389Measuring internal impedance, internal conductance or related variables
Applicants
  • TEXAS INSTRUMENTS INCORPORATED [US]/[US] (AllExceptUS)
  • TEXAS INSTRUMENTS JAPAN LIMITED [JP]/[JP] (JP)
  • BARSUKOV, Yevgen, P. [GB]/[US] (UsOnly)
  • QIAN, Jinrong [US]/[US] (UsOnly)
  • FUNDARO, Peter [US]/[US] (UsOnly)
  • YU, Ming [US]/[US] (UsOnly)
Inventors
  • BARSUKOV, Yevgen, P.
  • QIAN, Jinrong
  • FUNDARO, Peter
  • YU, Ming
Agents
  • FRANZ, Warren, L.
Priority Data
12/807,13027.08.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MONITORING A RECHARGEABLE BATTERY WITH MULTIPLE PARAMETER UPDATE RATES
(FR) CONTRÔLE D'UN ACCUMULATEUR RECHARGEABLE À MULTIPLES FRÉQUENCES DE MISE À JOUR DE PARAMÈTRES
Abstract
(EN)
Monitoring a state of a rechargeable battery involves repeatedly obtaining at least one measured value related to the battery during discharge of the battery (192); repeatedly calculating the state of the battery during discharge of the battery based on a previously calculated state of the battery, the measured value and at least one parameter of the battery (204); before the state of the battery passes a threshold value, updating the parameter of the battery at a first rate (206); after the state of the battery passes the threshold value, updating the parameter of the battery at a second rate, faster than the first rate (214); and correcting the state of the battery in response to each update of the parameter (208).
(FR)
L'invention porte sur le contrôle d'un état d'un accumulateur rechargeable, lequel contrôle met en œuvre l'obtention répétée d'au moins une valeur mesurée associée à l'accumulateur pendant la décharge de l'accumulateur (192) ; le calcul répété de l'état de l'accumulateur pendant la décharge de l'accumulateur sur la base d'un état précédemment calculé de l'accumulateur, de la valeur mesurée et d'au moins un paramètre de l'accumulateur (204) ; avant que l'état de l'accumulateur ne passe par une valeur de seuil, la mise à jour du paramètre de l'accumulateur à une première fréquence (206) ; après que l'état de l'accumulateur est passé par la valeur de seuil, la mise à jour du paramètre de l'accumulateur à une seconde fréquence, plus rapide que la première fréquence (214) ; et la correction de l'état de l'accumulateur en réponse à chaque mise à jour du paramètre (208).
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