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:
Oct. 20, 2026
Filed:
Sep. 24, 2020
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Jan Philipp Schmidt, Holzmaden, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A method is provided for calibrating a passive balancing system in a battery system which has a plurality of lithium ion cells and a battery management system, in which cell units consisting of individual cells or parallel-connected groups of a plurality of cells are each provided with a discharge circuit having a load resistance Ri representing the calibration parameter, and the cell units are serially connected in series. The battery management system is designed to measure the voltage Uof each cell unit and to actuate the discharge circuit at a selectable time in order to discharge the cell unit in a controlled manner via the load resistance R. The method includes actuating the discharge circuit of the cell unit for a discharge time tin order to remove a charge Q, and determining t, Qand the voltage characteristic over time U(t); and determining R.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile