Patent ID: 8493031
Filing Date: 2013-07-23
Classification: H02J,Y02T

Abstract:
1. An equalization device arranged to perform equalization processing of charge states of a plurality of battery cells including first and second battery cells, comprising: a detector arranged to detect the charge states of said plurality of battery cells; and an equalization processing unit arranged to change the charge state of said second battery cell of said plurality of battery cells for an equalization processing time period based on the charge states detected by said detector such that the charge state of said second battery cell is close to the charge state of said first battery cell of said plurality of battery cells, wherein said equalization processing time period is calculated or set based on a rate of change in the charge state of said first battery cell and a rate of change in the charge state of said second battery cell such that a magnitude relationship between the charge state of said first battery cell and the charge state of said second battery cell is not reversed.