{
  "$type": "site.standard.document",
  "description": "A battery management system according to the present disclosure classifies a plurality of battery cells into at least one group based on a State Of Charge (SOC) of each of the plurality of battery cells estimated in a previous cycle. The battery management system estimates an average polarization…",
  "path": "/patents/1414513",
  "publishedAt": "2022-11-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "A battery management system according to the present disclosure classifies a plurality of battery cells into at least one group based on a State Of Charge (SOC) of each of the plurality of battery cells estimated in a previous cycle. The battery management system estimates an average polarization voltage of a current cycle of each group based on an average SOC of the previous cycle, a first cell current and a second cell current of each group using a first Kalman filter. The first cell current denotes a cell current measured in the previous cycle, and the second cell current denotes a cell current measured in the current cycle. The battery management system estimates the SOC of the current cycle of each battery cell, based on the first cell current, the second cell current and the average polarization voltage of the current cycle of each group, using a second Kalman filter.",
  "title": "BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD"
}