Method for restoring battery data in portable appliance

• US 20040207405A1
• Filed: 08/25/2003
• Published: 10/21/2004
• Est. Priority Date: 08/24/2002
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Seung Hun
• Granted Patent: US 7,061,206 B2
• Time in Patent Office: Days
• US Class Current: 324/426
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Disclosed is a method for restoring battery data in a portable appliance. The battery data restoring method includes the steps of receiving reference battery data internally set in a battery and adapted to manage the battery, and storing the received reference battery data as backup data, comparing battery data periodically measured for the battery with the stored reference battery data, and updating the reference battery data set in the battery by the stored reference battery data when it is determined in accordance with the comparison that the measured battery data is damaged. Accordingly, it is possible to make the battery be normally used even when the reference data of the battery is damaged, thereby preventing an abnormal operation of the battery charging system.

Claims

1. A method for restoring battery data in a portable appliance, comprising the steps of:

receiving reference battery data internally set in a battery and adapted to manage the battery, and storing the received reference battery data as backup data;

comparing battery data periodically measured for the battery with the stored reference battery data; and

updating the reference battery data set in the battery by the stored reference battery data when it is determined in accordance with the comparison that the measured battery data is damaged.

2. The battery data restoring method according to claim 1, further comprising the step of:

after the update of the reference battery data, performing a calibration process for re-setting the battery reference data in accordance with a current capacity of the battery.

3. The battery data restoring method according to claim 1, wherein the reference battery data comprises temperature-based reference voltage, current and capacity data of the battery.

4. The battery data restoring method according to claim 1, wherein the measured battery data comprises at least one of temperature, voltage and current data.