{
  "$type": "site.standard.document",
  "description": "The present invention relates to a method for determining a state of charge of a battery, including: (a) acquiring a state of charge of the battery at a current sampling time point tn; (b) acquiring a voltage Vn, a temperature Tn, and a charging rate Cn of the battery at the current sampling time…",
  "path": "/patents/1402811",
  "publishedAt": "2023-07-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R19/10",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "The present invention relates to a method for determining a state of charge of a battery, including: (a) acquiring a state of charge of the battery at a current sampling time point tn; (b) acquiring a voltage Vn, a temperature Tn, and a charging rate Cn of the battery at the current sampling time point tn, and a voltage Vi of the battery at a sampling time point ti, and calculating a voltage difference Vn-Vi between the voltage Vn and the voltage Vi, where the sampling time point ti is a time point at which a state of charge of the battery is acquired within a preset time period before the sampling time point tn; (c) when the voltage difference Vn-Vi is greater than or equal to a preset voltage threshold, calculating a voltage change rate based on the voltage difference Vn-Vi and a time difference tn-ti between the sampling time point tn and the sampling time point ti; and (d) when the voltage change rate is greater than or equal to a preset voltage change rate threshold for the first time, acquiring a corrected state of charge of the battery as an actual state of charge of the battery based on correspondences between corrected states of charge, and the preset voltage change rate threshold, temperatures, and charging rates of the battery based on the temperature Tn and the charging rate Cn of the battery at the sampling time point tn.",
  "title": "METHOD FOR DETERMINING STATE OF CHARGE OF BATTERY, AND BATTERY MANAGEMENT SYSTEM AND ELECTRIC APPARATUS"
}