IP Library Granted Patent US 9,221,348
Granted Patent B2
US 9,221,348 · App. 14/104,461 · Granted Dec 29, 2015

Method and apparatus for managing battery pack

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Quick Facts
Patent No.
US 9,221,348
App. No.
14/104,461
Granted
Dec 29, 2015
Kind
B2
Abstract

An apparatus for managing a battery pack for a vehicle includes a temperature measurement module for measuring temperature of the battery pack; a current measurement module for measuring a charge/discharge current of the battery pack when the measured temperature is not within a predetermined temperature range; a time measurement module for measuring the time while the measured charge/discharge current is over a predetermined current value; a storage module for accumulating and storing the measured time; and a control module for determining a state of the battery pack according to the accumulated and stored time and providing the state information to a user.

Claims (24)

1. A battery pack comprising an apparatus for managing the battery pack, wherein the apparatus comprises:

a temperature measurement module for measuring temperature of the battery pack;

a current measurement module for measuring a charge/discharge current of the battery pack when the measured temperature is not within a predetermined temperature range;

a time measurement module for measuring the time while the measured charge/discharge current is over a predetermined current value;

a storage module for accumulating and storing the measured time; and

a control module for determining a state of the battery pack according to the accumulated and stored time and providing the state information to a user.

2. The battery pack of claim 1 , wherein the apparatus comprises temperature measurement module measures both interior and exterior temperatures of the battery pack.

3. The battery pack of claim 2 , wherein the current measurement module measures a charge/discharge current of the battery pack when the measured interior temperature of the battery pack is over a predetermined criterion temperature and the measured exterior temperature is higher than the measured interior temperature.

4. The battery pack of claim 1 , wherein the control module endows a warning point per a predetermined accumulated time and provides state information of the battery pack in stages in accordance with the endowed warning point.

5. The battery pack of claim 4 , wherein the control module interrupts a charging/discharging path of the battery pack when the endowed warning point reaches a predetermined level.

6. The battery pack of claim 5 , wherein the control module accumulates the number of interruptions when interrupting the charging/discharging path, and stores the number of interruptions in the storage module.

7. The battery pack of claim 1 , wherein the control module provides state information of the battery pack to a user by means of a warning lamp, an alarm generator, or a display.

8. A vehicle comprising an apparatus for managing a battery pack wherein the apparatus comprises:

a temperature measurement module for measuring temperature of the battery pack;

a current measurement module for measuring a charge/discharge current of the battery pack when the measured temperature is not within a predetermined temperature range;

a time measurement module for measuring the time while the measured charge/discharge current is over a predetermined current value;

a storage module for accumulating and storing the measured time; and

a control module for determining a state of the battery pack according to the accumulated and stored time and providing the state information to a user.

9. The vehicle of claim 8 , wherein the temperature measurement module measures both interior and exterior temperatures of the battery pack.

10. The vehicle of claim 9 , wherein the current measurement module measures a charge/discharge current of the battery pack when the measured interior temperature of the battery pack is over a predetermined criterion temperature and the measured exterior temperature is higher than the measured interior temperature.

11. The vehicle of claim 8 , wherein the control module endows a warning point per a predetermined accumulated time and provides state information of the battery pack in stages in accordance with the endowed warning point.

12. The vehicle of claim 11 , wherein the control module interrupts a charging/discharging path of the battery pack when the endowed warning point reaches a predetermined level.

13. The vehicle of claim 12 , wherein the control module accumulates the number of interruptions when interrupting the charging/discharging path, and stores the number of interruptions in the storage module.

14. The vehicle of claim 8 , wherein the control module provides state information of the battery pack to a user by means of a warning lamp, an alarm generator, or a display.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2021
From: LG CHEM, LTD.
To: LG ENERGY SOLUTION, LTD.
Reel/Frame 058295/0068 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2013
From: KIM, JU-YOUNG
To: LG CHEM, LTD.
Reel/Frame 032081/0234 →