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1. (WO2017195760) BATTERY CONDITION ESTIMATION DEVICE
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Pub. No.: WO/2017/195760 International Application No.: PCT/JP2017/017486
Publication Date: 16.11.2017 International Filing Date: 09.05.2017
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: HITACHI AUTOMOTIVE SYSTEMS, LTD.[JP/JP]; 2520, Takaba, Hitachinaka-shi, Ibaraki 3128503, JP
Inventors: OHKAWA Keiichro; JP
NAKAO Ryohhei; JP
Agent: TODA Yuji; JP
Priority Data:
2016-09597712.05.2016JP
Title (EN) BATTERY CONDITION ESTIMATION DEVICE
(FR) DISPOSITIF D'ESTIMATION D'ÉTAT DE BATTERIE
(JA) 電池状態推定装置
Abstract:
(EN) Provided is a battery condition estimation device that is able to prevent deterioration in the accuracy with which the state of charge of a battery is calculated. The battery condition estimation device 110 is equipped with a SOCv calculation unit 111 which calculates SOCv using the voltage across both ends of the battery, a SOCi calculation unit 112 which calculates SOCi by integrating the current flowing to the battery, and a first and second temperature calculation unit 115, 116 to which a plurality of temperatures from different measurement sites on the battery are input and which set a first temperature T1 and a second temperature T2 that are based on the plurality of temperatures. Additionally, weighted addition of SOCv and SOCi is performed to calculate SOCw. The weighting of SOCi is changed in relation to the size of the absolute value of the difference between the first temperature T1 and the second temperature T2.
(FR) L'invention concerne un dispositif d'estimation d'état de batterie qui est apte à prévenir une détérioration de la précision avec laquelle l'état de charge d'une batterie est calculé. Le dispositif d'estimation d'état de batterie 110 est équipé d'une unité de calcul d'état de charge basé sur la tension (SOCv) 111 qui calcule le SOCv à l'aide de la tension aux deux bornes de la batterie, une unité de calcul d'état de charge basé sur le courant (SOCi) 112 qui calcule le SOCi en intégrant le courant circulant dans la batterie, et une première et une seconde unité de calcul de température 115, 116 dans lesquelles une pluralité de températures provenant de différents sites de mesure sur la batterie sont entrées et qui définissent une première température T1 et une seconde température T2 qui sont basées sur la pluralité de températures. De plus, l'addition pondérée du SOCv et du SOCi est effectuée pour calculer SOCw. La pondération du SOCi est modifiée par rapport à la taille de la valeur absolue de la différence entre la première température T1 et la seconde température T2.
(JA) 電池充電状態の演算精度の悪化を防ぐことができる電池状態推定装置の提供。電池状態推定装置110は、電池の両端電圧を用いてSOCvを算出するSOCv演算部111と、電池に流れる電流を積算してSOCiを算出するSOCi演算部112と、電池の計測位置が異なる複数の温度が入力され、前記複数の温度に基づく第1温度T1および第2温度T2を設定する第1および第2温度算出部115,116と、を備え、SOCvとSOCiとを重み付け加算してSOCwを算出する。そして、第1温度T1と第2温度T2との差の絶対値の大きさに関連づけて、SOCiの重み付けを変化させるようにした。
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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, 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)