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1. (WO2019043792) BATTERY SYSTEM AND VEHICLE
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Pub. No.: WO/2019/043792 International Application No.: PCT/JP2017/030979
Publication Date: 07.03.2019 International Filing Date: 29.08.2017
IPC:
G01R 31/36 (2006.01) ,H01M 10/48 (2006.01) ,H02J 7/00 (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
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7
Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Applicants:
株式会社 東芝 KABUSHIKI KAISHA TOSHIBA [JP/JP]; 東京都港区芝浦一丁目1番1号 1-1, Shibaura 1-chome, Minato-ku, Tokyo 1058001, JP
東芝インフラシステムズ株式会社 TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION [JP/JP]; 神奈川県川崎市幸区堀川町72番地34 72-34, Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 2128585, JP
Inventors:
桑野 友樹 KUWANO, Yuuki; JP
清水 陽介 SHIMIZU, Yosuke; JP
萩原 敬三 HAGIWARA, Keizo; JP
Agent:
蔵田 昌俊 KURATA, Masatoshi; JP
野河 信久 NOGAWA, Nobuhisa; JP
河野 直樹 KOHNO, Naoki; JP
Priority Data:
Title (EN) BATTERY SYSTEM AND VEHICLE
(FR) SYSTÈME DE BATTERIE ET VÉHICULE
(JA) バッテリシステムおよび車両
Abstract:
(EN) A battery system according to an embodiment is for precisely calculating the internal resistance of a secondary battery cell, and comprises a battery-internal-resistance calculation unit for: acquiring the open-circuit voltages Vocv of a plurality of secondary battery cells; while a plurality of battery modules MDL11-MDLnm are charging, acquiring the closed-circuit voltages Vccv of the plurality of secondary battery cells in a prescribed order from a plurality of battery monitoring circuits CB11-CBnm; subsequently acquiring the closed-circuit voltages of the plurality of secondary battery cells from the plurality of battery monitoring circuits CB11-CBnm in the reverse order from the prescribed order; for each of the plurality of secondary battery cells, calculating an average value for the plurality of closed-circuit voltages Vccv acquired for the secondary battery cell; and calculating the internal resistances of each of the plurality of secondary battery cells on the basis of the open-circuit voltages Vocv, charging current values for the plurality of battery modules MDL11-MDLnm acquired from a current sensor, and the average values for the closed-circuit voltages Vccv.
(FR) Un système de batterie selon un mode de réalisation de la présente invention est destiné à calculer précisément la résistance interne d’une cellule de batterie rechargeable, et comprend une unité de calcul de résistance interne de batterie pour : acquérir les tensions en circuit ouvert Vocv d’une pluralité de cellules de batterie rechargeables ; tandis qu’une pluralité de modules de batterie MDL11-MDLnm sont en charge, acquérir les tensions en circuit fermé Vccv de la pluralité de cellules de batterie rechargeables dans un ordre prescrit depuis une pluralité de circuits de surveillance de batterie CB11-CBnm ; acquérir ensuite les tensions en circuit fermé de la pluralité de cellules de batterie rechargeables depuis la pluralité de circuits de surveillance de batterie CB11-CBnm dans l’ordre inverse de l’ordre prescrit ; pour chacune de la pluralité de cellules de batterie rechargeables, calculer une valeur moyenne pour la pluralité de tensions en circuit fermé Vccv acquises pour la cellule de batterie rechargeable ; et calculer les résistances internes de chacune de la pluralité de cellules de batterie secondaires sur la base des tensions en circuit ouvert Vocv, des valeurs de courant de charge pour la pluralité de modules de batterie MDL11-MDLnm acquises depuis un capteur de courant, et les valeurs moyennes pour les tensions en circuit fermé Vccv.
(JA) 実施形態のバッテリシステムは、二次電池セルの内部抵抗を精度よく演算するものであって、複数の二次電池セルの開回路電圧Vocvを取得し、複数の電池モジュールMDL11~MDLnmの充電中に、複数の二次電池セルの閉回路電圧Vccvを所定の順に複数の電池監視回路CB11~CBnmから取得した後、複数の二次電池セルの閉回路電圧を所定の順の逆順に複数の電池監視回路CB11~CBnmから取得し、複数の二次電池セルのそれぞれについて取得した複数の閉回路電圧Vccvの平均値を演算し、開回路電圧Vocvと、電流センサから取得した複数の電池モジュールMDL11~MDLnmの充電電流の値と、閉回路電圧Vccvの平均値とを用いて、複数の二次電池セルそれぞれの内部抵抗を演算するバッテリ内部抵抗演算部を備える。
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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: Japanese (JA)
Filing Language: Japanese (JA)