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1. WO2020141944 - BATTERY CURRENT MEASURING DEVICE AND METHOD

Publication Number WO/2020/141944
Publication Date 09.07.2020
International Application No. PCT/KR2020/000140
International Filing Date 03.01.2020
IPC
G01R 31/3842 2019.1
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
3842combining voltage and current measurements
G01R 31/374 2019.1
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
374with means for correcting the measurement for temperature or ageing
G01R 19/25 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
25using digital measurement techniques
G01R 19/32 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
32Compensating for temperature change
CPC
G01R 19/25
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
25using digital measurement techniques
G01R 19/32
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
32Compensating for temperature change
G01R 31/374
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 [SoC]
374with means for correcting the measurement for temperature or ageing
G01R 31/3842
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 [SoC]
382Arrangements for monitoring battery or accumulator variables, e.g. SoC
3842combining voltage and current measurements
Applicants
  • 주식회사 엘지에너지솔루션 LG ENERGY SOLUTION, LTD. [KR]/[KR]
Inventors
  • 이원태 LEE, Won Tae
  • 이창복 LEE, Chang Bok
  • 황성택 HWANG, Sung Tack
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2019-000115104.01.2019KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) BATTERY CURRENT MEASURING DEVICE AND METHOD
(FR) DISPOSITIF ET PROCÉDÉ DE MESURE DE COURANT DE BATTERIE
(KO) 배터리 전류 측정 장치 및 방법
Abstract
(EN)
The present invention includes a battery current measuring device comprising: a switching element for controlling the charging/discharging of a battery; an A/D converter for converting the voltages at both ends of the switching element to digital values; a temperature compensation unit comprising a diode structure capable of compensating for resistance variation resulting from temperature variation of the switching element; and a current calculation unit for calculating a current flowing in the switching element on the basis of the digital values of the voltages, wherein the A/D converter converts the voltage values of the switching element to digital values by using a reference voltage inputted from the temperature compensation unit.
(FR)
La présente invention concerne un dispositif de mesure de courant de batterie, comprenant : un élément de commutation pour commander la charge/décharge d'une batterie ; un convertisseur A/N pour convertir les tensions aux deux extrémités de l'élément de commutation en valeurs numériques ; une unité de compensation de température comprenant une structure à diodes capable de compenser une variation de résistance résultant d'une variation de température de l'élément de commutation ; et une unité de calcul de courant pour calculer un courant circulant dans l'élément de commutation sur la base des valeurs numériques des tensions, le convertisseur A/N convertissant les valeurs de tension de l'élément de commutation en valeurs numériques en utilisant une tension de référence entrée à partir de l'unité de compensation de température.
(KO)
본 발명은 배터리의 충방전을 제어하기 위한 스위칭 소자: 상기 스위칭 소자 양단의 전압을 디지털값으로 변환하는 A/D 컨버터; 상기 스위칭 소자의 온도 변화에 따른 저항 변화를 보상할 수 있는 다이오드 구조를 포함하는 온도 보상부; 및 상기 전압의 디지털값을 기초로 상기 스위칭 소자를 흐르는 전류를 산출하는 전류 산출부를 포함하고, 상기 A/D 컨버터는 상기 온도 보상부로부터 입력된 기준 전압을 이용하여 상기 스위칭 소자의 전압값을 디지털값으로 변환하는 배터리 전류 측정 장치를 포함합니다.
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