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:
Jan. 07, 2025
Filed:
Jun. 12, 2019
Volvo Truck Corporation, Gothenburg, SE;
Faisal Altaf, Gothenburg, SE;
VOLVO TRUCK CORPORAITON, Gothenburg, SE;
Abstract
A method for estimating a battery state of an energy storage system of a vehicle using a dual estimator. The energy storage system comprises a battery unit, and the dual estimator comprises a first estimator configured to estimate said battery state, the first estimator having first tuning parameters, a second estimator configured to track changes around nominal values of a set of battery parameters, the second estimator having second tuning parameters. The method comprises obtaining operational data of the energy storage system, feeding the operational data to the estimators, using the first estimator, estimating the battery state, using the second estimator, estimating changes around the nominal values of the set of battery parameters, and at least one of adaptively adjusting the first and/or second tuning parameters and adaptively adjusting the nominal values of the set of battery parameters to account for slow timescale variations arising due to ageing.