Processing

Please wait...

Settings

Settings

Goto Application

1. WO2011009227 - SYSTEMS AND METHODS FOR DETERMINING BATTERY STATE OF CHARGE

Publication Number WO/2011/009227
Publication Date 27.01.2011
International Application No. PCT/CN2009/000822
International Filing Date 23.07.2009
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
H02J 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
CPC
G01R 31/3647
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
3647for determining the ability of a battery to perform a critical function, e.g. cranking
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 31/389
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)
  • YAO, Chidong [CN]/[CN] (UsOnly)
Inventors
  • YAO, Chidong
Agents
  • JEEKAI & PARTNERS
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR DETERMINING BATTERY STATE OF CHARGE
(FR) SYSTÈMES ET PROCÉDÉS DE DÉTERMINATION D'ÉTAT DE CHARGE D'UNE BATTERIE
Abstract
(EN)
Systems (50, 200) and methods for determining a state of charge of a battery (52, 102, 150, 202) are provided. The system (50, 200) includes a power source (56, 206) configured to provide a charging current to a battery (52, 102, 150, 202). A controller (54, 104, 204) is included and configured to determine a state of charge of the battery (52, 102, 150, 202) based on impedance of a battery (52, 102, 150, 202) during a discharge time period based on an impedance and a state of charge relationship of a battery (52, 102, 150, 202) during a charge time period.
(FR)
L'invention concerne des systèmes (50, 200) et des procédés permettant de déterminer l'état de charge d'une batterie (52, 102, 150, 202). Le système (50, 200) comprend une source d'alimentation (56, 206) conçue pour alimenter une batterie (52, 102, 150, 202) en courant de charge. Un dispositif de commande (54, 104, 204) est prévu, lequel est conçu pour déterminer un état de charge de la batterie (52, 102, 150, 202) en fonction de l'impédance d'une batterie (52, 102, 150, 202) pendant une période de décharge basée sur une impédance et une relation d'état de charge d'une batterie (52, 102, 150, 202) pendant une période de charge.
Latest bibliographic data on file with the International Bureau