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. 23, 2026
Filed:
Dec. 20, 2023
Robert Bosch Gmbh, Stuttgart, DE;
Lei Cheng, San Jose, CA (US);
Jonathan Braaten, Sunnyvale, CA (US);
Karim Gadelrab, Watertown, MA (US);
Weiqi Ji, Sunnyvale, CA (US);
Bjoern Stuehmeier, Santa Clara, CA (US);
Christina Johnston, Spanish Fort, AL (US);
Nathan Craig, Sunnyvale, CA (US);
Jake Christensen, Elk Grove, CA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electrochemical state of health (SoH) estimating method. The method includes receiving in-operation voltage and/or current signals from a fuel cell stack during operation of the fuel cell stack at one or more operational condition(s). The method further includes comparing an in-operation voltage-current relationship based on the in-operation voltage or current signals at the operational condition(s) with a beginning of life (BOL) voltage-current relationship at the same or substantially the same operational condition(s) to obtain a voltage-current comparison at the operational condition(s). The method also includes estimating an SoH parameter in response to the voltage-current comparison.
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