A method of charge state estimation based on H _ infinity observer is proposed (SOC)for a series-
Connected battery pack for electric vehicles.
In this method, the average virtual community (AVC)
The model refers to the estimation of the AVC model of SOC in the system chip (SOC) when all terminal voltage difference (TVD)
The voltage value between each unit and AVC in the package is within the preset range.
The effectiveness of the proposed method is verified by experiments.