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:
Jun. 02, 2026
Filed:
Jun. 01, 2022
Robert Bosch Gmbh, Stuttgart, DE;
Joerg Schneider, Ludwigsburg, DE;
Christel Sarfert, Korntal-Muenchingen, DE;
Christoph Kroener, Freiberg am Neckar, DE;
Ganesh Susmitha, Bengaluru, IN;
Holavanahalli Shashank, Stuttgart, DE;
Johannes Swoboda, Stuttgart, DE;
Johannes Maximilian Nipper, Stuttgart, DE;
Olivier Cois, Kernen, DE;
Peter Kohn, Stuttgart, DE;
Triantafyllos Zafiridis, Heilbronn, DE;
Venkatrao Desai, Kalaburagi, IN;
Vincent Scharff, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and a sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, a maximum state of charge and a minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (ΔI), a capacity, a correction value for the minimum state of charge, and a correction value for the maximum state of charge of the electric energy store cells; the correction value for the minimum state of charge is determined by means of a minimum state of charge on the basis of a filtered minimum open-circuit voltage of the electric energy store; the correction value for the maximum state of charge is determined by means of a maximum state of charge on the basis of a filtered maximum open-circuit voltage of the electric energy store; wherein a maximum state of charge (SOC) of the electric energy store is the maximum of the maximum states of charge of all the electric energy store cells, and a minimum state of charge (SOC) of the electric energy store is the minimum of the minimum states of charge of all the electric energy store cells.