IP Library › Granted Patent US 12676494
Granted Patent B2
US 12676494 · App. 18/030,419 · Granted Jul 7, 2026

Power supply management apparatus and operating method thereof

Inventor: Ho Jin Choi (Daejeon, KR)
Assignee: LG ENERGY SOLUTION, LTD.
H02J7/80G01R31/396H01M10/425H01M2010/4271
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Quick Facts
Patent No.
US 12676494
App. No.
18/030,419
Granted
Jul 7, 2026
Kind
B2
Abstract

A power supply management apparatus according to an embodiment disclosed herein includes a determining unit determining a level of a fault when the fault occurs, a first control unit setting a control point in time for cutting off power supply to a load according to the level of the fault and generating a first control command according to the control point in time, a second control unit generating a second control command corresponding to a power supply maintaining time when the fault occurs, and a third control unit generating a third control command for controlling the power supply to the load, based on the first control command and the second control command.

Claims (34)

1 . A power supply management apparatus comprising:

a determining unit configured to determine a level of a fault in a battery module when the fault occurs;

a first control unit configured to set a control point in time for cutting off power supply to a load according to the level of the fault and generate a first control command according to the control point in time;

a second control unit configured to generate a second control command corresponding to a power supply maintaining time when the fault occurs; and

a third control unit configured to generate a third control command for controlling the power supply to the load, based on the first control command and the second control command,

wherein the determining unit is configured to output an occurrence of the fault and the level of the fault to the first control unit, and is configured to output the occurrence of the fault to the second control unit,

wherein the second control unit is configured to generate the second control command when the determining unit outputs the occurrence of the fault to the second control unit, and

wherein the power supply management apparatus is configured to control a charging and/or a discharging of the battery module based on at least one of the first control command, the second control command and the third control command.

2 . The power supply management apparatus of claim 1 , wherein the first control command has a first value before the control point in time and has a second value from the control point in time.

3 . The power supply management apparatus of claim 2 , wherein the second control command has the first value during the power supply maintaining time and has the second value after the power supply maintaining time.

4 . The power supply management apparatus of claim 3 , wherein the third control unit is further configured to generate the third control command for maintaining the power supply to the load when at least any one of the first control command and the second control command has the first value.

5 . The power supply management apparatus of claim 1 , wherein the third control unit comprises an OR logic gate or an AND logic gate.

6 . The power supply management apparatus of claim 1 , wherein the second control unit is further configured to generate the second control command by using a function inhibition manager (FIM).

7 . The power supply management apparatus of claim 1 , wherein the determining unit does not directly transmit the occurrence of the fault or the level of the fault to the third control unit.

8 . The power supply management apparatus of claim 1 , wherein a duration of time to the control point in time for cutting off power supply to the load is less than a duration of time of the power supply maintaining time.

9 . The power supply management apparatus of claim 1 , wherein a duration of time to the control point in time for cutting off power supply to the load is greater than a duration of time of the power supply maintaining time.

10 . The power supply management apparatus of claim 1 , wherein the determining unit does not output the level of the fault to the second control unit.

11 . The power supply management apparatus of claim 1 , wherein the power supply management apparatus is configured to control a relay connected to the battery module.

12 . The power supply management apparatus of claim 11 , wherein the first control command is a command including having the relay in a closed state before the control point in time and having the relay in an open state after the control point in time.

13 . The power supply management apparatus of claim 12 , wherein the second control command includes preventing the open state of the relay for a specific time.

14 . The power supply management apparatus of claim 13 , wherein the third control command includes preventing the relay from being in the open state earlier than the power supply maintaining time.

15 . An operating method of a power supply management apparatus, the operating method comprising:

determining a level of a fault in a battery module when the fault occurs;

setting a control point in time for cutting off power supply to a load according to the level of the fault;

outputting, by a determining unit, an occurrence of the fault and the level of the fault to a first control unit, and the occurrence of the fault to a second control unit;

generating, by the first control unit, a first control command according to the control point in time;

generating, by the second control unit, a second control command corresponding to a power supply maintaining time when the fault occurs;

generating a third control command for controlling the power supply to the load, based on the first control command and the second control command; and

controlling a charging and/or a discharging of the battery module based on at least one of the first control command, the second control command and the third control command.

16 . The operating method of claim 15 , wherein the first control command has a first value before the control point in time and has a second value from the control point in time.

17 . The operating method of claim 16 , wherein the second control command has the first value during the power supply maintaining time and has the second value after the power supply maintaining time.

18 . The operating method of claim 17 , wherein the generating of the third control command for controlling the power supply to the load, based on the first control command and the second control command is performed when at least any one of the first control command and the second control command has the first value.

19 . The operating method of claim 15 , wherein the generating of the third control command for controlling the power supply to the load, based on the first control command and the second control command includes using an OR logic gate or an AND logic gate.

20 . The operating method of claim 15 , wherein the generating of the second control command corresponding to the power supply maintaining time when the fault occurs is performed using a function inhibition manager (FIM).