The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2025
Filed:
Jul. 03, 2020
Volvo Truck Corporation, Gothenburg, SE;
Faisal Altaf, Västra Frölunda, SE;
VOLVO TRUCK CORPORATION, Gothenburg, SE;
Abstract
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.