[go: up one dir, main page]

WO2014084628A1 - Appareil de mesure de courant de batterie et procédé associé - Google Patents

Appareil de mesure de courant de batterie et procédé associé Download PDF

Info

Publication number
WO2014084628A1
WO2014084628A1 PCT/KR2013/010905 KR2013010905W WO2014084628A1 WO 2014084628 A1 WO2014084628 A1 WO 2014084628A1 KR 2013010905 W KR2013010905 W KR 2013010905W WO 2014084628 A1 WO2014084628 A1 WO 2014084628A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
switch
main
controller
current measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/010905
Other languages
English (en)
Korean (ko)
Inventor
박세호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK Innovation Co Ltd
Original Assignee
SK Innovation Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SK Innovation Co Ltd filed Critical SK Innovation Co Ltd
Publication of WO2014084628A1 publication Critical patent/WO2014084628A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC

Definitions

  • the present invention relates to a battery current measuring device and a method thereof, and in particular, configured to measure current through a resistor installed in a relay stage so as not to receive external noise interference, and to detect and correct an abnormality of an internal current measuring hall sensor. It relates to a battery current measuring device and a method thereof.
  • a typical electric vehicle generates high power by connecting a battery produced in a module unit in which a plurality of cells are connected in series / parallel.
  • the number of modules used varies depending on the amount of power required, but generally, a voltage between 250V and 350V is used.
  • Electric vehicles generate about 200-500A of current at the above-mentioned voltages to generate power for moving the vehicle during the discharge phase, and vice versa. Use a current of about 200A.
  • a shunt resistor current measurement method or ii) a current measurement method using a hall sensor is used in a general electric vehicle to measure such a high current.
  • the current measurement method using the shunt resistor has a problem that the sensor is the simplest and most accurate current sensing method or a problem related to heat generation, and it is difficult to apply to a vehicle because it is expensive and difficult to implement.
  • the current measurement method using the Hall sensor is similar to the shunt resistance current measurement method, but the circuit and measurement method to be added in addition to the sensor has the advantages of being simple to implement and easy to measure the current of the high current.
  • Current measurement method Due to the characteristics of the Hall element, it cannot be free from interference of external noise, which causes a problem of inferior accuracy.
  • Patent Document 1 Domestic Publication No. 2003-0072751
  • the present invention for solving the above problems is to provide a battery current measuring apparatus and method for measuring the current through a resistor installed in the relay stage so as not to receive external noise interference.
  • the present invention is to provide a battery current measuring device and method for detecting and correcting the abnormality of the internal Hall sensor for measuring current.
  • the main first switch installed in the high potential line between the battery pack and the load;
  • a precharge switch connected in parallel with the main first switch on a high potential line between a battery pack and a load;
  • a main second switch installed at a low potential line between the battery pack and the load;
  • a resistance for measuring current installed between the precharge switch and the load;
  • a current measuring unit measuring a voltage across both ends of the current measuring resistor and calculating a current value;
  • a controller which controls the main first switch, the main second switch, and the precharge switch, and receives a current value calculated by the current measuring unit.
  • the apparatus of the present invention further includes a precharge resistor installed in series with the current measuring resistor between the precharge switch and the load.
  • the control unit of the apparatus of the present invention may turn on the precharge switch after turning on the main second switch, turn on the main first switch after a predetermined time, turn off the precharge switch, and the current measuring unit
  • the current is calculated by measuring the voltage of the current measuring resistor at the time when the precharge switch is turned on.
  • the current measuring unit of the device of the present invention a voltage sensor for sensing a voltage across the current measuring resistor; An A / D converter for converting the voltage signal sensed by the voltage sensor into a digital signal; A communicator in communication with the control unit; And a controller for calculating a current value from the digitized voltage signal output from the A / D converter and transmitting the current value to the controller through the communicator.
  • the apparatus may further include a current converter installed between the battery pack, the main first switch, and the precharge switch to detect a current flowing in the high potential line and transmit the current to the controller.
  • controller of the apparatus of the present invention determines whether the current converter is abnormal by comparing the current value measured by the current converter with the current value measured by the current measurer.
  • the current converter of the apparatus of the present invention consists of an Open Loop Type Hall Effect Current Sensor.
  • the current conversion portion of the device of the present invention consists of a closed loop type Hall Effect Current Sensor.
  • the method of the present invention comprises the steps of (A) the control unit turns on the pre-charge switch after the main second switch on; (B) a current measuring unit measuring the voltage of the current measurement resistance at the time when the pre-charge switch is turned on, calculating the current and transmitting the current to the controller; And (C) the control unit turning on the main first switch after a predetermined time and turning off the precharge switch.
  • the method of the present invention includes the steps of (D) detecting the current flowing in the high potential line current conversion unit installed between the battery pack and the main first switch and the precharge switch to the control unit; And (E) comparing the current value measured by the current converter with the current value measured by the current measurer to determine whether the current converter is abnormal.
  • step (B) of the method of the present invention includes the steps of (B-1) the voltage sensor of the current measuring unit to measure the voltage of the resistance for measuring the current at the pre-charge switch turn-on time; (B-2) converting the voltage signal sensed by the voltage sensor into a digital signal by an A / D converter of the current measuring unit; And (B-3) the controller of the current measuring unit calculates a current value from the digitized voltage signal output from the A / D converter and transmits the current value to the controller.
  • the present invention since it is configured to measure the current through a resistor installed in the relay stage, it is possible to accurately measure the current without receiving external noise interference.
  • FIG. 1 is a block diagram of a battery current measuring device according to an embodiment of the present invention.
  • FIG. 2 is a switch waveform diagram of FIG. 1.
  • FIG. 3 is a block diagram of a battery current measuring device according to another embodiment of the present invention.
  • FIGS. 1 and 3 are detailed configuration diagram of the current measuring unit of FIGS. 1 and 3.
  • FIG. 5 is a flowchart of a method for measuring a battery current according to an embodiment of the present invention.
  • FIG. 1 is a configuration diagram of a battery current measuring device according to an embodiment of the present invention.
  • a battery current measuring apparatus includes a precharge switch 120, a precharge resistor 130, and a current measurement positioned between the battery pack 110 and a load 190.
  • the resistor 140 includes a main first switch 150, a main second switch 160, a current measuring unit 170, and a controller 180.
  • the battery pack 110 includes a cell assembly in which a plurality of unit cells capable of repetitive charging and discharging are connected in series or in parallel.
  • the unit cell is a known secondary battery such as an electric double layer capacitor or a lithium ion battery including an ultracapacitor, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, and the like.
  • the precharge switch 120 is installed on the bypass line of the high potential line, and is connected in series with the precharge resistor 130 and the current measuring resistor 140.
  • main first switch 150 is installed on the high potential line Pack + connecting the positive electrode of the battery pack 110 and the load 190.
  • the main second switch 160 is installed on a low potential line Pack- which connects the negative electrode of the battery pack 110 and the load 190.
  • the precharge switch 120, the main first switch 150, and the main second switch 160 are configured as relays.
  • the present invention is not limited by the type of switch connecting the battery pack 110 and the load 190.
  • the precharge resistor 130 and the current measuring resistor 140 are connected to each other in series, and are installed on the bypass line of the high potential line.
  • the pre-charge resistor 130 and the current measuring resistor 140 are located between the pre-charge switch 120 and the load 190 so that the pre-charge switch 120 is turned on from the battery pack 110.
  • the current supplied to the load 190 is limited so as not to flow excessively.
  • the current measuring resistor 140 not only prevents the current supplied from the battery pack 110 to the load 190 from excessively flowing, but also provides a voltage difference between both ends of the current measuring unit 170. Allow the current to be measured.
  • the pre-charge resistor 130 has a current measuring resistor 140, respectively, but only the current measuring resistor 140 may be performed to perform the functions of current limiting and current measuring.
  • the current measuring unit 170 measures the voltage across the current measuring resistor 140 to measure the current flowing through the current measuring resistor 140. .
  • the controller 180 includes a precharge switch 120, a main first switch 150, and a main disposed on the transmission line of the load 190 and the battery pack 110 supplying power to the load 190. Overall operation of the second switch 160 is controlled.
  • the load 190 is a voltage conversion device for converting the discharge voltage applied from the battery pack 110 to another voltage level.
  • This load 190 includes a DC link capacitor 192, a low voltage DC-DC converter 194, and a battery 196.
  • the present invention is not limited by the type of the load 190, the load 190 should be understood to include any device or system that receives the operating power from the battery pack 110, for example the load ( 190 may be a motor that receives power from the battery pack 110 and generates power.
  • the controller 180 connects the battery pack 110 and the load 190, the main second switch 160, the precharge switch 120, and the main first switch 150 are shown in FIG. 2.
  • the low switches are turned on, and when the main first switch 150 is turned on, the precharge switch 120 is turned off after a predetermined time.
  • the pre-charge switch 120 and the main second switch 160 are turned on so that a current flows through the pre-charge resistor 130 and the current measuring resistor 140, and thus the DC link capacitor of the load 190. Charge 192.
  • the current measuring unit 170 measures the voltage at both ends of the current measuring resistor 140 at the sensing time shown in FIG. 2 to flow through the current measuring resistor 140. Measure and transmit the measured current value to the controller 180.
  • the current measuring unit 170 may not measure the current.
  • FIG. 3 is a block diagram of a battery current measuring device according to another embodiment of the present invention.
  • the battery current measuring device additionally includes a current converting unit 200 in a high potential line between the battery pack 110 and the switch stage, thereby providing a high potential in front of the switch stage. Measure the current flowing through the line.
  • the current value measured by the current converter 200 is transmitted to the controller 180 and used for management of the battery pack 110.
  • the controller 180 may determine whether the current converter 200 is abnormal by comparing the current value measured by the current measuring unit 170 with the current value measured by the current converter 200. .
  • the controller 180 determines that the current converter 200 is out of order and informs the result to the user.
  • the current converter 200 may be an open loop type hall effect current sensor or a closed loop type hall effect current sensor, and the failure determination may be a failure of the hall sensor. Judgment is made.
  • FIGS. 1 and 3 are detailed configuration diagram of the current measuring unit of FIGS. 1 and 3.
  • the current measuring unit of FIGS. 1 and 3 includes a voltage sensor 210, an A / D converter 220, a controller 230, and a communicator 240.
  • the voltage sensor 210 senses and outputs a voltage applied to both ends ND1 and ND2 of the resistor 140 for current measurement.
  • the A / D converter 220 converts the voltage signal output from the voltage sensor 210 into a digital signal and outputs the digital signal.
  • the controller 230 receives a digitized voltage signal output from the A / D converter 220, calculates a current, and transmits the current to the controller 180 through the communicator 240.
  • the communicator 240 communicates with the controller 180 using at least one of CAN, Zigbee, WIFI, Bluetooth, infrared data communication, power line communication, USB, and SERIAL.
  • the precharge switch 120 is first turned on before the main first switch 150 is turned on.
  • the voltage sensor 210 senses and outputs a voltage across both ends ND1 and ND2 of the current measuring resistor 140.
  • the A / D converter 220 converts the voltage signal output from the voltage sensor 210 into a digital signal and outputs the digital signal.
  • the controller 230 digitizes the digital signal output from the A / D converter 220. The current is calculated by receiving the received voltage signal.
  • the measured current I is expressed by Equation 1 below.
  • the controller 230 transmits the calculated current value to the controller 180 through the communicator 240.
  • FIG. 5 is a flowchart of a battery current measuring method according to an embodiment of the present invention.
  • the battery current measuring method first turns on the main second switch when the controller connects the battery pack and the load (S110) and turns on the precharge switch after a predetermined time. (S120).
  • the precharge switch and the main second switch are turned on to charge the DC link capacitor of the load while current flows through the pre-charge resistor and the current measurement resistor.
  • the voltage sensor of the current measuring unit measures and outputs the voltage at both ends of the current measuring resistor (S130).
  • the A / D converter of the current measuring unit converts the voltage signal of the voltage sensor, which is an analog signal, into a digital signal and outputs the digital signal, thereby enabling digital signal processing (S140).
  • the controller of the current measuring unit calculates the current value by the above Equation 1 and transmits the current value to the controller through the communicator (S150).
  • the controller when the controller receives the current value calculated from the controller of the current measuring unit, the controller checks whether there is an abnormality, then turns on the main first switch (S160), and turns off the precharge switch (S170).
  • a current conversion unit consisting of a Hall sensor additionally measures the current flowing in the high potential line to the control unit, the control unit to the current value and the Hall sensor measured through the current measuring unit By comparing current values measured through the configured current converter, it is possible to determine whether an abnormality of the current converter-more specifically, that the hall sensor is abnormal.
  • the controller may determine that the current conversion unit (hall sensor) is out of order when the measured values are different from each other, and inform the user of the result.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

La présente invention concerne un appareil de mesure de courant d'une batterie et un procédé associé, et en particulier, un appareil de mesure de courant d'une batterie qui est conçu pour mesurer le courant à travers une résistance disposée au niveau d'une borne de relais de manière à ne pas recevoir des interférences de bruit externe, et qui peut détecter et corriger l'état anormal d'un capteur à effet hall interne pour la mesure du courant, et un procédé associé. L'appareil de mesure de courant d'une batterie, selon la présente invention, comprend : un premier commutateur principal disposé sur une ligne haute tension entre un bloc de batterie et une charge ; un commutateur de précharge connecté en parallèle au premier commutateur principal sur la ligne haute tension entre le bloc de batterie et la charge ; un second commutateur principal disposé sur la ligne basse tension entre le bloc batterie et la charge ; une résistance de mesure de courant disposée entre le commutateur de précharge et la charge ; une unité de mesure de courant destinée à calculer une valeur de courant en mesurant une tension entre les deux extrémités de la résistance de mesure de courant ; et une unité de commande destinée à commander le premier commutateur principal, le second commutateur principal, et le commutateur de précharge, et à recevoir la valeur de courant calculée au moyen de l'unité de mesure de courant.
PCT/KR2013/010905 2012-11-30 2013-11-28 Appareil de mesure de courant de batterie et procédé associé Ceased WO2014084628A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120138267A KR20140070148A (ko) 2012-11-30 2012-11-30 배터리 전류 측정 장치 및 그 방법
KR10-2012-0138267 2012-11-30

Publications (1)

Publication Number Publication Date
WO2014084628A1 true WO2014084628A1 (fr) 2014-06-05

Family

ID=50828181

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/010905 Ceased WO2014084628A1 (fr) 2012-11-30 2013-11-28 Appareil de mesure de courant de batterie et procédé associé

Country Status (2)

Country Link
KR (1) KR20140070148A (fr)
WO (1) WO2014084628A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105629176A (zh) * 2015-12-30 2016-06-01 上海与德通讯技术有限公司 电池容量的测试方法、可充电电池的充电电路及电子设备
CN108248390A (zh) * 2018-01-15 2018-07-06 浙江吉利汽车研究院有限公司 一种高压电池放电电路及其控制方法
EP3410562A1 (fr) * 2017-06-01 2018-12-05 Toshiba TEC Kabushiki Kaisha Dispositif de réception de puissance sans contact et procédé de réception de puissance sans contact
CN112068020A (zh) * 2019-05-21 2020-12-11 上海海拉电子有限公司 一种用于dc-dc转换器的诊断电路、诊断方法及一种dc-dc转换器

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101711706B1 (ko) * 2014-11-20 2017-03-02 주식회사 엘지화학 공통 모드 노이즈 시뮬레이터
KR102399722B1 (ko) 2014-12-29 2022-05-19 삼성전자주식회사 전류 추정 방법 및 장치
KR102436418B1 (ko) * 2015-07-02 2022-08-25 삼성에스디아이 주식회사 배터리 팩의 전류 측정 방법
KR200491964Y1 (ko) 2015-07-20 2020-07-08 엘에스일렉트릭(주) 배터리 디스커넥트 유닛
KR102145524B1 (ko) 2016-06-22 2020-08-18 주식회사 엘지화학 전기 자동차용 구동 회로 및 그 제어 방법
KR101687384B1 (ko) 2016-06-24 2016-12-16 태성전장주식회사 전류 센서를 포함한 대전류용 피씨비 어셈블리
KR102342841B1 (ko) 2018-11-20 2021-12-22 주식회사 엘지에너지솔루션 배터리 관리 장치 및 그것을 포함하는 배터리팩과 전원 시스템
KR102768117B1 (ko) * 2019-07-12 2025-02-17 에스케이온 주식회사 전류 센서 오차 산출 장치
KR102829433B1 (ko) * 2019-11-27 2025-07-04 에스케이온 주식회사 프리차지 장치의 고장 진단 장치 및 방법
KR102876312B1 (ko) * 2020-09-16 2025-10-23 주식회사 엘지에너지솔루션 배터리 장치, 배터리 관리 시스템 및 프리차지 전류 측정 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060104689A (ko) * 2005-03-31 2006-10-09 주식회사 엘지화학 복수의 검출 저항을 이용하여 배터리 셀의 전류량을측정하는 장치 및 방법
KR20070023068A (ko) * 2005-08-23 2007-02-28 현대자동차주식회사 하이브리드 차량의 통합 제어기
US20090112496A1 (en) * 2007-10-30 2009-04-30 Sony Corporation Battery pack, method of charging secondary battery and battery charger
KR20090075910A (ko) * 2008-01-07 2009-07-13 에스케이에너지 주식회사 인터락 스위치를 이용한 프리-차지 저항 보호 회로 장치
US20100237872A1 (en) * 2008-09-01 2010-09-23 Ju-Hyun Kang Apparatus and method for sensing leakage current of battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060104689A (ko) * 2005-03-31 2006-10-09 주식회사 엘지화학 복수의 검출 저항을 이용하여 배터리 셀의 전류량을측정하는 장치 및 방법
KR20070023068A (ko) * 2005-08-23 2007-02-28 현대자동차주식회사 하이브리드 차량의 통합 제어기
US20090112496A1 (en) * 2007-10-30 2009-04-30 Sony Corporation Battery pack, method of charging secondary battery and battery charger
KR20090075910A (ko) * 2008-01-07 2009-07-13 에스케이에너지 주식회사 인터락 스위치를 이용한 프리-차지 저항 보호 회로 장치
US20100237872A1 (en) * 2008-09-01 2010-09-23 Ju-Hyun Kang Apparatus and method for sensing leakage current of battery

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105629176A (zh) * 2015-12-30 2016-06-01 上海与德通讯技术有限公司 电池容量的测试方法、可充电电池的充电电路及电子设备
EP3410562A1 (fr) * 2017-06-01 2018-12-05 Toshiba TEC Kabushiki Kaisha Dispositif de réception de puissance sans contact et procédé de réception de puissance sans contact
CN108988498A (zh) * 2017-06-01 2018-12-11 东芝泰格有限公司 非接触电力接收装置及非接触电力接收方法
US10848000B2 (en) 2017-06-01 2020-11-24 Toshiba Tec Kabushiki Kaisha Non-contact power receiving device and non-contact power receiving method
CN108248390A (zh) * 2018-01-15 2018-07-06 浙江吉利汽车研究院有限公司 一种高压电池放电电路及其控制方法
CN112068020A (zh) * 2019-05-21 2020-12-11 上海海拉电子有限公司 一种用于dc-dc转换器的诊断电路、诊断方法及一种dc-dc转换器

Also Published As

Publication number Publication date
KR20140070148A (ko) 2014-06-10

Similar Documents

Publication Publication Date Title
WO2014084628A1 (fr) Appareil de mesure de courant de batterie et procédé associé
WO2021049753A1 (fr) Appareil et procédé de diagnostic de batterie
WO2018124511A1 (fr) Dispositif et procédé de gestion de batterie pour étalonner l'état de charge d'une batterie
WO2020076127A1 (fr) Dispositif et procédé de gestion de batterie
WO2023008883A1 (fr) Système de gestion de batterie, bloc-batterie, véhicule électrique et procédé de gestion de batterie
WO2023287180A1 (fr) Dispositif de diagnostic de batterie, bloc-batterie, véhicule électrique et procédé de diagnostic de batterie
WO2014077522A1 (fr) Dispositif et procédé de détection de fusion de relais pour système de batterie
WO2014030839A1 (fr) Système de contrôle de relais et procédé de commande de ce dernier
WO2022265358A1 (fr) Système de gestion de batterie, bloc-batterie, véhicule électrique et procédé de gestion de batterie
WO2013147494A1 (fr) Dispositif et procédé de mesure de la résistance d'isolement d'une batterie
WO2021002658A1 (fr) Système de gestion de batterie et procédé de gestion
WO2011083993A2 (fr) Dispositif et procédé de commande de batterie
WO2011108788A1 (fr) Dispositif de diagnostic d'anomalie et procédé pour circuits d'équilibrage d'éléments
WO2018021661A1 (fr) Appareil de mesure de courant utilisant une résistance de shunt
WO2018074807A1 (fr) Procédé et système d'équilibrage d'élément de batterie efficace par commande de service
WO2022080709A1 (fr) Dispositif de diagnostic de relais, procédé de diagnostic de relais, système de batterie et véhicule électrique
WO2022025725A1 (fr) Dispositif de gestion de batterie, bloc-batterie, système de batterie et procédé de gestion de batterie
WO2022080699A1 (fr) Procédé de détection d'événement thermique de système de batterie et système de batterie l'utilisant
WO2019088746A1 (fr) Appareil et procédé d'estimation de soc de batterie
WO2021085869A1 (fr) Procédé d'estimation de l'état de charge d'une batterie et système de gestion de batterie équipé de celui-ci
WO2023063625A1 (fr) Appareil de diagnostic de batterie, bloc-batterie, véhicule électrique et procédé de diagnostic de batterie
WO2021085808A1 (fr) Appareil de mesure de température, appareil à batterie le comprenant et procédé de mesure de température
WO2023224211A1 (fr) Procédé de diagnostic de batterie, et dispositif de diagnostic de batterie et système de batterie fournissant ledit procédé
WO2020054924A1 (fr) Appareil et procédé de diagnostic d'état d'une batterie dans une unité de cellule
WO2019088404A1 (fr) Procédé d'affichage d'une quantité de charge d'une batterie, et bloc-batterie et dispositif électronique pour l'exécution de celui-ci

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13858946

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13858946

Country of ref document: EP

Kind code of ref document: A1