{
  "$type": "site.standard.document",
  "description": "There is provided a battery pack system with estimation accuracy of a remaining capacity of a secondary batter enhanced. A current accumulation coefficient correction section 109 calculates a correction amount α with respect to a current accumulation coefficient kin accordance with a battery…",
  "path": "/patents/1083829",
  "publishedAt": "2004-09-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "PANASONIC EV ENERGY CO LTD [JP]"
  ],
  "textContent": "There is provided a battery pack system with estimation accuracy of a remaining capacity of a secondary batter enhanced. A current accumulation coefficient correction section 109 calculates a correction amount α with respect to a current accumulation coefficient kin accordance with a battery electromotive force Veq from an electromotive force calculation section 105. A remaining capacity calculation section 112 estimates a remaining capacity SOC by current accumulation, based on the current accumulation coefficient kcalculated from a correction amount α, and a charging efficiency η based on a currently estimated remaining capacity calculated by a charging efficiency calculation section 110.",
  "title": "METHOD AND DEVICE FOR ESTIMATING REMAINING CAPACITY OF SECONDARY CELL, BATTERY PACK SYSTEM, AND ELECTRIC VEHICLE"
}