×

BATTERY STATE MEASURING METHOD AND APPARATUS, AND ELECTRONIC APPARATUS

  • US 20130085695A1
  • Filed: 09/20/2012
  • Published: 04/04/2013
  • Est. Priority Date: 09/29/2011
  • Status: Abandoned Application
First Claim
Patent Images

1. A battery state measuring method comprising:

  • detecting a battery voltage of a rechargeable battery;

    computing a battery voltage at a time when charging or discharge of the rechargeable battery stops, corresponding to a charging rate of the rechargeable battery of a unit time before, based on a first battery characteristic that determines a relationship between the charging rate and the battery voltage at the time when the charging or discharge of the rechargeable battery stops;

    computing a voltage difference between the battery voltage detected by the detecting and the battery voltage computed by the battery voltage computing;

    computing a variation per unit time of the charging rate of the rechargeable battery, corresponding to the voltage difference computed by the voltage difference computing, based on a second battery characteristic that determines a relationship of a voltage difference between the battery voltage at the time when the charging or discharge of the rechargeable battery stops and the battery voltage detected by the detecting, and a variation per unit time of the charging rate of the rechargeable battery; and

    computing a charging rate of the rechargeable battery of the unit time after, using the charging rate of the rechargeable battery of the unit time before and the variation computed by the variation computing.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×