{
  "$type": "site.standard.document",
  "description": "A battery SoC estimation device includes a discharge-and charge current detection means 1, a terminal-voltage detection means 2, a current-integration SoC estimation means 3, an open-circuit-voltage SoC estimation means 4, an error estimation means 6, and an SoC calculating means 7. The estimation…",
  "path": "/patents/981575",
  "publishedAt": "2013-11-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L58/12",
    "CALSONIC KANSEI CORP [JP]"
  ],
  "textContent": "A battery SoC estimation device includes a discharge-and charge current detection means 1, a terminal-voltage detection means 2, a current-integration SoC estimation means 3, an open-circuit-voltage SoC estimation means 4, an error estimation means 6, and an SoC calculating means 7. The estimation means 3estimates a current-integration-method SoC (SoC i ), calculating variance of current-integration-method SoC based on information on detection accuracy of the detection means 1. The estimation means 4 estimates an open-circuit-voltage-method SoC (SoC v ) corresponding to an open circuit voltage value estimated based on a discharge-and-charge current value and a terminal voltage value, using a battery equivalent circuit model. The estimation means 6 estimates an estimate error n i of the current-integration-method SoC based on a difference between the SoC v and the SoC i , variance of the SoC i , and variance of the SoC v . The calculating means 7 calculates SoC of a battery based on the SoC i and the n i .",
  "title": "DEVICE FOR ESTIMATING STATE OF CHARGE OF BATTERY"
}