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:
Dec. 02, 2025
Filed:
Apr. 09, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Jun-Mo Kang, Ann Arbor, MI (US);
Garrett Michael Seeman, Clawson, MI (US);
Patrick E. Frost, Berkley, MI (US);
Mohamed Kamel, Birmingham, MI (US);
Suresh Gopalakrishnan, Troy, MI (US);
Chandra S. Namuduri, Troy, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An example vehicle battery control system includes an electric motor, a vehicle battery pack configured to supply power to the electric motor, the vehicle battery pack including multiple battery modules each including multiple rechargeable battery cells, and a vehicle control module configured to measure an output current of the vehicle battery pack, estimate a state of charge of the vehicle battery pack using a coulomb counter, and for each of the multiple battery modules, measure an output voltage of the battery module, determine a state of charge shifting bias value for the battery module, estimate an individual state of charge of the battery module by applying the state of charge shifting bias value to the state of charge of the vehicle battery pack, and control at least one of a charging current and a discharging current according to the individual state of charge of the battery module.