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:
Sep. 01, 2026
Filed:
Jul. 26, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Jingyuan Liu, Shanghai, CN;
Qili Su, Shanghai, CN;
Dave G. Rich, Sterling Heights, MI (US);
Si Chen, Shanghai, CN;
James Morrison, Sebringville, CA;
Dewen Kong, Shanghai, CN;
Haijing Liu, Shanghai, CN;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A state of charge (SOC) balancing system includes: first and second batteries; first and second capacitors; an SOC module configured to determine first and second SOCs of the first and second batteries, respectively; and a switching module configured to selectively, when the first SOC is greater than the second SOC: (i) electrically connect the first and second capacitors in parallel; (ii) electrically connect the first battery to the first and second capacitors while the first and second capacitors are electrically connected in parallel; (iii) electrically disconnect the first battery from the first and second capacitors; (iv) electrically connect the first and second capacitors in series; (v) electrically connect the second battery to the first and second capacitors while the first and second capacitors are electrically connected in series; and (vi) electrically disconnect the second battery from the first and second capacitors.