Method and System for Monitoring Health Condition of Battery Pack

Abstract

Provided are a method and a system for monitoring the health condition of a battery pack. The method includes: obtaining data of voltage difference between the maximum and minimum voltages of the battery cells within a battery pack of an electric vehicle; determining an alert value based on the data of voltage difference, wherein the alert value is a combined value of the following factors: the slope of the mean battery cell voltage difference within a preset period of past time, the predicted mean battery cell voltage difference within a preset period of future time, and the minimum of battery cell voltage difference; generating a predictive maintenance notice for the battery pack of the electric vehicle when the alert value is larger than a threshold value.

Dependencies are inferred from the claim text.