公开(公告)号：US20240137245A1

公开(公告)日：2024-04-25

申请号：US17769956

申请日：2021-08-09

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sunwoo YOON ,  Jung Su LEE

IPC: H04L12/40

CPC classification number: H04L12/40039 ,  H04L12/40032 ,  H04L12/40045 ,  H04L2012/40215

Abstract: A method for assigning communication IDs and a system for allocating communication IDs includes a plurality of slave battery management systems (BMSs) sequentially connected to a power line for supplying power, and allocating predetermined communication IDs based on a first current amount applied through the power line, at least one of the slave BMSs outputs a second current amount that is the first current amount minus a consumed current amount for driving through the power line, and the first current amount corresponds to a summation value of a consumed current amount of the slave BMS receiving the first current amount and a consumed current amount of at least one posterior slave BMS sequentially connected to the slave BMS receiving the first current amount.

公开(公告)号：US20240235886A9

公开(公告)日：2024-07-11

申请号：US17769956

申请日：2021-08-10

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sunwoo YOON ,  Jung Su LEE

IPC: H04L12/40

CPC classification number: H04L12/40039 ,  H04L12/40032 ,  H04L12/40045 ,  H04L2012/40215

Abstract: A method for assigning communication IDs and a system for allocating communication IDs includes a plurality of slave battery management systems (BMSs) sequentially connected to a power line for supplying power, and allocating predetermined communication IDs based on a first current amount applied through the power line, at least one of the slave BMSs outputs a second current amount that is the first current amount minus a consumed current amount for driving through the power line, and the first current amount corresponds to a summation value of a consumed current amount of the slave BMS receiving the first current amount and a consumed current amount of at least one posterior slave BMS sequentially connected to the slave BMS receiving the first current amount.

公开(公告)号：US20240405539A1

公开(公告)日：2024-12-05

申请号：US18691319

申请日：2022-09-27

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sunwoo YOON ,  Suyeup JEONG

IPC: H02H3/18

Abstract: A protection device of an electronic device can include a first switch having an input terminal, a first output terminal connected to a first node, and a second output terminal connected to a second node; and a second switch having an input terminal, a first output terminal connected to a third node, and a second output terminal connected to a fourth node. In a first relay, a relay switch is connected between the first node and a positive input terminal of the electronic device, and an input terminal of a first driver is connected to the first node. In a second relay, a relay switch is connected between a negative input terminal of the electronic device and the third node, and a second driver includes an input terminal connected to an output terminal of the first driver and an output terminal connected to the third node.

公开(公告)号：US20240322270A1

公开(公告)日：2024-09-26

申请号：US18563802

申请日：2022-11-07

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sunwoo YOON

IPC: H01M10/42 ,  H02J7/00

CPC classification number: H01M10/4264 ,  H02J7/0013 ,  H02J7/0047 ,  H01M2010/4271 ,  H02J2207/10

Abstract: A battery system includes a plurality of battery packs, each of the plurality of battery packs including a plurality of battery cells, a plurality of slave battery management systems (BMSs) managing the plurality of battery packs, each of the plurality of BMSs including a battery monitoring integrated circuit (BMIC), and a relay turned on when the BMIC operates, a plurality of first resistors between both ends of a power source, a plurality of second resistors, a third resistor connected between the power source and the plurality of first resistors, and a master BMS determining positions and a number of BMICs operating among the plurality of BMICs based on a sensing voltage obtained by dividing a voltage of the power source by at least one of the third resistor, the plurality of first resistors, and the plurality of second resistors.

公开(公告)号：US20240178677A1

公开(公告)日：2024-05-30

申请号：US18281922

申请日：2022-11-01

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sunwoo YOON

IPC: H02J7/00 ,  H01M10/42 ,  H02J7/34

CPC classification number: H02J7/0019 ,  H01M10/4207 ,  H02J7/00309 ,  H02J7/007182 ,  H02J7/342 ,  H02J7/345 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2200/106 ,  H02J2207/10 ,  H02J2207/20 ,  H02J2207/50

Abstract: Discussed is a battery system including: a battery pack including a plurality of battery cells; a battery monitoring integrated circuit (BMIC) configured to monitor each of a plurality of cell voltages of the plurality of battery cells; a plurality of balancing batteries each charged by a target battery cell requiring a cell balancing among the plurality of battery cells; a power conversion unit including a direct-current to direct-current (DC-DC) converter receiving voltages from the plurality of balancing batteries and configured to convert the voltages into output voltages; and a power supply unit configured to supply the output voltages to the BMIC when the output voltages have a voltage equal to or greater than a predetermined level for driving the BMIC.