{
  "$type": "site.standard.document",
  "description": "A method for estimating an operating parameter of a battery unit () in an energy storage system () of a vehicle () using a set of first estimators, each first estimator being configured to estimate a state residual size of the battery unit based on a given initial value of said operating parameter…",
  "path": "/patents/1331619",
  "publishedAt": "2022-11-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/367",
    "VOLVO TRUCK CORPORATION"
  ],
  "textContent": "A method for estimating an operating parameter of a battery unit () in an energy storage system () of a vehicle () using a set of first estimators, each first estimator being configured to estimate a state residual size of the battery unit based on a given initial value of said operating parameter and using a prediction model, the operating parameter being indicative of one of capacity and impedance of the battery unit, the method comprising:—obtaining measurement data relating to operating conditions of the energy storage system at a number of points in time t,—providing a set of initial values of said operating parameter, each initial value being associated with one of said first estimators,—using the set of first estimators, estimating () a set of state residual sizes of the battery unit at each point in time tbased on at least the measurement data and on the associated initial values,—determining a first operating parameter estimate of the battery unit based on the estimated set of state residual sizes,—estimating the operating parameter of the battery unit as a function of time based on at least said first operating parameter estimate, wherein estimating the set of state residual sizes comprises using a recursive algorithm for estimating the state residual size of each element of a set of state residuals, each estimated state residual size being determined based on the state residual size as estimated at a previous point in time tand a current magnitude of the state residual.",
  "title": "METHOD FOR ESTIMATING AN OPERATING PARAMETER OF A BATTERY UNIT"
}