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.

Date of Patent:
Jul. 20, 2021

Filed:

Jul. 25, 2018
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventor:

Kerfegar K. Katrak, Fenton, MI (US);

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60L 3/00 (2019.01); H02M 3/335 (2006.01); H02M 3/156 (2006.01); H03M 1/12 (2006.01); H02M 3/157 (2006.01); B60L 58/20 (2019.01); H02H 7/12 (2006.01); B60L 3/12 (2006.01); H02M 7/483 (2007.01);
U.S. Cl.
CPC ...
B60L 3/003 (2013.01); B60L 3/0038 (2013.01); B60L 3/0084 (2013.01); B60L 3/12 (2013.01); B60L 58/20 (2019.02); H02H 7/1213 (2013.01); H02M 3/156 (2013.01); H02M 3/157 (2013.01); H02M 3/3353 (2013.01); H03M 1/12 (2013.01); B60L 2210/10 (2013.01); H02M 7/4835 (2021.05);
Abstract

A diagnostic system for a DC-DC voltage converter includes a microcontroller having a first diagnostic handler application and first and second applications. The first application sets a first non-recoverable diagnostic flag associated with the DC-DC voltage converter to a first encoded value having each nibble thereof selected from an odd Karnaugh set of binary values. The second application sets a second non-recoverable diagnostic flag to a second encoded value having each nibble thereof selected from an even Karnaugh set of binary values. The first diagnostic handler application sets a first master non-recoverable diagnostic flag to a first encoded fault value if the first non-recoverable diagnostic flag is equal to a second encoded fault value, or the second non-recoverable diagnostic flag is equal to a third encoded fault value.


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