{
  "$type": "site.standard.document",
  "description": "An object of the present invention is to provide a battery control device capable of obtaining an allowable charge/discharge current value further accurately reflecting a polarization state of a battery. A battery controller 101 includes a first allowable current value calculation unit 704, a…",
  "path": "/patents/1420245",
  "publishedAt": "2024-09-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "VEHICLE ENERGY JAPAN INC [JP]"
  ],
  "textContent": "An object of the present invention is to provide a battery control device capable of obtaining an allowable charge/discharge current value further accurately reflecting a polarization state of a battery. A battery controller 101 includes a first allowable current value calculation unit 704, a battery equivalent circuit model 702, and a correction amount calculation unit 706t. The first allowable current value calculation unit calculates a first allowable current value Imax1 which is a current limit value of a battery assuming a non-polarization state, based on an open circuit voltage OCV of the battery and upper and lower limit voltages Vmax and Vmin set in the battery. The battery equivalent circuit model 702 estimates a polarization state of the battery at the time of calculating the current limit value. The correction amount calculation unit 706t calculates an allowable current value correction value ΔI for correcting the first allowable current value Imax1 based on the estimated polarization state. The second allowable current value Imax2 which is the corrected first allowable current value is output as an allowable charge/discharge current value of the battery.",
  "title": "BATTERY CONTROL DEVICE"
}