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1. (WO2019025171) METHOD AND SYSTEM FOR ESTIMATING BATTERY OPEN CELL VOLTAGE, STATE OF CHARGE, AND STATE OF HEALTH DURING OPERATION OF THE BATTERY
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Pub. No.: WO/2019/025171 International Application No.: PCT/EP2018/069230
Publication Date: 07.02.2019 International Filing Date: 16.07.2018
IPC:
G01R 31/36 (2006.01) ,H01M 10/48 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
36
Apparatus for testing electrical condition of accumulators or electric batteries, e.g. capacity or charge condition
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
42
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48
Accumulators combined with arrangements for measuring, testing, or indicating condition, e.g. level or density of the electrolyte
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
SUBBARAMAN, Anantharaman; US
RAVI, Nikhil; US
KLEIN, Reinhardt; US
SCHMIDT, Gerd Simon; US
MAYHEW, Christopher; US
Priority Data:
15/664,81431.07.2017US
Title (EN) METHOD AND SYSTEM FOR ESTIMATING BATTERY OPEN CELL VOLTAGE, STATE OF CHARGE, AND STATE OF HEALTH DURING OPERATION OF THE BATTERY
(FR) PROCÉDÉ ET SYSTÈME D'ESTIMATION DE LA TENSION DE CELLULE OUVERTE, DE L'ÉTAT DE CHARGE ET DE L'ÉTAT DE SANTÉ D'UNE BATTERIE PENDANT LE FONCTIONNEMENT DE LA BATTERIE
Abstract:
(EN) A method for monitoring a battery while the battery is connected to a load (140) has been developed. The method includes measuring a first current level flowing through the battery to the load (140) and a first voltage level of the battery at a first time, generating an estimated open cell voltage (OCV) of the battery at the first time based on the first current level, the first voltage level, and a predetermined model (154) of the battery, identifying a first excitation level of the battery at the first time based on the first voltage level, the first current level and a cost optimization process, and identifying at least one of a state of charge (SoC) and state of health (SoH) of the battery using the estimated OCV only in response to the first excitation level being below a predetermined threshold.
(FR) La présente invention concerne un procédé de surveillance d'une batterie pendant que la batterie est connectée à une charge (140). Le procédé comprend la mesure d'un premier niveau de courant circulant à travers la batterie jusqu'à la charge (140) et d'un premier niveau de tension de la batterie à un premier instant, la génération d'une tension de cellule ouverte estimée (OCV) de la batterie au premier temps sur la base du premier niveau de courant, du premier niveau de tension, et d'un modèle prédéterminé (154) de la batterie, l'identification d'un premier niveau d'excitation de la batterie au premier temps sur la base du premier niveau de tension, du premier niveau de courant et d'un processus d'optimisation de coût, et l'identification d'au moins l'un parmi un état de charge (SoC) et un état de santé (SoH) de la batterie au moyen de l'OCV estimé uniquement en réponse au premier niveau d'excitation étant inférieur à un seuil prédéterminé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)