Patent ID: 8154252
Filing Date: 2012-04-10
Classification: G01R

Abstract:
1. A process for monitoring the status of a battery, comprising the steps of: measuring a battery current; comparing the battery current to a predetermined threshold; determining, from the battery current comparison, the battery status as one of charging, discharging and quiescent; for a battery charging status determination, computing the charging state of charge of the battery; for battery discharge status determination, comparing the discharge current to a plurality of predetermined thresholds, selecting, based upon the result of the discharge current comparison, a basis for the discharge current from one of a plurality of predetermined discharge conditions, and computing the discharging state of charge of the battery for the select discharge condition; and for quiescent status, computing the quiescent state of charge of the battery; and providing the computed state of charge of the battery in a quantitative form.