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1. (WO2017056732) BATTERY CONTROL DEVICE AND BATTERY SYSTEM
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Pub. No.: WO/2017/056732 International Application No.: PCT/JP2016/073216
Publication Date: 06.04.2017 International Filing Date: 08.08.2016
IPC:
H02J 7/00 (2006.01) ,G01R 31/36 (2006.01) ,H01M 10/48 (2006.01) ,B60L 3/00 (2006.01)
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
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
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
L
PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
3
Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration, power consumption
Applicants:
日立オートモティブシステムズ株式会社 HITACHI AUTOMOTIVE SYSTEMS, LTD. [JP/JP]; 茨城県ひたちなか市高場2520番地 2520, Takaba, Hitachinaka-shi, Ibaraki 3128503, JP
Inventors:
中尾 亮平 NAKAO Ryohhei; JP
大川 圭一朗 OHKAWA Keiichiro; JP
Agent:
戸田 裕二 TODA Yuji; JP
Priority Data:
2015-19251430.09.2015JP
Title (EN) BATTERY CONTROL DEVICE AND BATTERY SYSTEM
(FR) DISPOSITIF DE COMMANDE DE BATTERIE ET SYSTÈME DE BATTERIE
(JA) 電池制御装置及び電池システム
Abstract:
(EN) Conventionally, it is not possible to estimate a state of charge (SOC) with high accuracy. In the present invention, immediately prior to a second discharge, as indicated by time t5, an SOC initial value which includes post-charging residual polarization voltage is acquired and thereupon SOCi2(t) is calculated, and as shown in graph S2, calculation result SOCi2(t) is obtained from time t5. As a result, because a charge-discharge pair is realized, combination calculation according to an embodiment of the present invention becomes possible. Based on the SOC initial value which includes post-charging residual polarization voltage, an SOCi calculation value (SOCi2(t)) and SOCi1(t) are calculated in parallel, and by using a weighting factor calculated on the basis of a formula 5, two SOC are weight averaged to find SOCc(t). As a result, as shown in graph S3, calculation result SOCc(t) is obtained from time t5.
(FR) Conventionnellement, il n’est pas possible d’estimer un état de charge (SOC) avec une haute précision. Selon la présente invention, immédiatement avant une deuxième décharge, comme indiqué par l’instant (t5), une valeur initiale de polarisation qui inclut une tension résiduelle de polarisation après la charge est acquise et SOCi2(t) est calculé sur cette valeur, et comme l’indique le graphique (S2), le résultat de calcul SOCi2(t) est obtenu à partir de l’instant (t5). Par conséquent, parce que la paire charge-décharge est réalisée, le calcul de combinaison selon un mode de réalisation de la présente invention devient possible. Sur la base de la valeur initiale de SOC qui inclut la tension de polarisation résiduelle après la charge, des valeurs de calcul de SOCi (SOCi2(t)) et SOCi1(t) sont calculées en parallèle, et au moyen d’un facteur de pondération calculé sur la base d’une formule (5), la moyenne pondérée de deux SOC est calculée pour trouver SOCc(t). Par conséquent, comme l’indique le graphique (S3), le résultat de calcul SOCc(t) est obtenu à partir de l’instant (t5).
(JA) SOCを高精度に推定することができない。時刻t5で示す2回目の放電直前に、充電後の残存分極電圧を含むSOC初期値を取得すると、SOCi2(t)が演算され、グラフS2に示すように、時刻t5から演算結果のSOCi2(t) が得られる。その結果、充電/放電のペアが揃うため、本実施形態による組合せ演算が可能となる。充電後の残存分極電圧を含むSOC初期値に基づく、SOCi演算値(SOCi2(t))と、SOCi1(t)を並行して演算し、式5に基づいて算出される重み係数により、2つのSOCを重み付け平均してSOCc(t)を求める。この結果、グラフS3に示すように、時刻t5から演算結果のSOCc(t)が得られる。
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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)