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. 30, 2025
Filed:
Oct. 31, 2023
Applicant:
Garrett Transportation I Inc., Torrance, CA (US);
Inventors:
Abhijith Vikraman Pillai Santhamma, Prague, CZ;
Hab Collector, Atlanta, GA (US);
Assignee:
Garrett Transportation I Inc., Torrance, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/00 (2006.01); G01R 31/3842 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/006 (2013.01); G01R 31/3842 (2019.01);
Abstract
Online electrochemical impedance spectroscopy (EIS) circuitry and methods. For mobile installations, such as in a hybrid or electric vehicle, battery management units or battery management systems having EIS circuits can provide additional data regarding the state, health and potential failure of batteries. New topologies for the EIS circuitry are proposed, allowing voltage controlled and current controlled EIS to be performed.