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1. WO2020196366 - ELECTRICAL STORAGE DEVICE, METHOD FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT, AND PROGRAM FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT

Publication Number WO/2020/196366
Publication Date 01.10.2020
International Application No. PCT/JP2020/012611
International Filing Date 23.03.2020
IPC
H01M 10/44 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01M 10/48 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
B60R 16/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
16Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
02electric
04Arrangement of batteries
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
G01R 31/382 2019.01
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
382Arrangements for monitoring battery or accumulator variables, e.g. SoC
G01R 31/385 2019.01
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
385Arrangements for measuring battery or accumulator variables
Applicants
  • 株式会社GSユアサ GS YUASA INTERNATIONAL LTD. [JP]/[JP]
Inventors
  • 今中 佑樹 IMANAKA, Yuki
Priority Data
2019-06096427.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRICAL STORAGE DEVICE, METHOD FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT, AND PROGRAM FOR ESTIMATING CAPACITY OF ELECTRICAL STORAGE ELEMENT
(FR) DISPOSITIF DE STOCKAGE ÉLECTRIQUE, ET PROCÉDÉ ET PROGRAMME D'ESTIMATION DE CAPACITÉ D'ÉLÉMENT DE STOCKAGE ÉLECTRIQUE
(JA) 蓄電装置、蓄電素子の容量推定方法、蓄電素子の容量推定プログラム
Abstract
(EN)
An electrical storage device 50 is provided with: external terminals 51, 52; an electrical storage element 60; a switch 53 positioned in a current route 55P from the electrical storage element 60 to the external terminal 51; a measuring unit 150 for measuring current and voltage of the electrical storage element 60; and a managing unit 130. The measuring unit 150 and the managing unit 130 receive electric power supply from the electrical storage element 60. A lowest operation voltage V1 of the managing unit 130 is lower than a lowest operation voltage V2 of the measuring unit 150. The managing unit 130, if the voltage of the electrical storage element 60 is lower than a threshold value voltage V0 of more than or equal to the lowest operation voltage V2 of the measuring unit 150, controls the switch 53 to cut off external discharge via the external terminal 52, and, on the basis of an elapsed time from an arbitrary time point t1 in a first period in which the voltage of the electrical storage element 60 decreases from the threshold value voltage V0 to the lowest operation voltage V2 of the measuring unit 150, estimates a capacity of the electrical storage element 60 after the arbitrary time point t1.
(FR)
La présente invention porte sur un dispositif de stockage électrique (50), qui est pourvu : de bornes externes (51, 52) ; d'un élément de stockage électrique (60) ; d'un commutateur (53) positionné dans un trajet de courant (55P) de l'élément de stockage électrique (60) à la borne externe (51) ; d'une unité de mesure (150) destinée à mesurer le courant et la tension de l'élément de stockage électrique (60) ; et d'une unité de gestion (130). L'unité de mesure (150) et l'unité de gestion (130) reçoivent une alimentation en énergie électrique provenant de l'élément de stockage électrique (60). La tension de fonctionnement la plus faible (V1) de l'unité de gestion (130) est inférieure à la tension de fonctionnement la plus faible (V2) de l'unité de mesure (150). Si la tension de l'élément de stockage électrique (60) est inférieure à une tension de valeur seuil (V0) supérieure ou égale à la tension de fonctionnement la plus faible (V2) de l'unité de mesure (150), l'unité de gestion (130) commande le commutateur de façon à interrompre une décharge externe par l'intermédiaire de la borne externe (52), et estime, en fonction d'un temps écoulé à partir d'un instant arbitraire (t1) dans une première période où la tension de l'élément de stockage électrique (60) diminue de la tension de valeur seuil (V0) à la tension de fonctionnement la plus faible (V2) de l'unité de mesure (150), la capacité de l'élément de stockage électrique (60) après l'instant (t1).
(JA)
蓄電装置50は、外部端子51、52と、蓄電素子60と、前記蓄電素子60から外部端子51への電流経路55Pに位置するスイッチ53と、前記蓄電素子60の電流及び電圧を計測する計測部150と、管理部130と、を備える。前記計測部150と前記管理部130は、前記蓄電素子60から電力の供給を受ける。前記管理部130の最低動作電圧V1は、前記計測部150の最低動作電圧V2より低い。前記管理部130は、前記蓄電素子60の電圧が前記計測部150の最低動作電圧V2以上の閾値電圧V0を下回った場合、前記スイッチ53の制御により前記外部端子52を通じた外部への放電を遮断し、前記蓄電素子60の電圧が前記閾値電圧V0から前記計測部150の最低動作電圧V2まで低下する第1期間の任意時点t1からの経過時間に基づいて、前記蓄電素子60の前記任意時点t1以降の容量を推定する。
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