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:
Feb. 14, 2017

Filed:

Dec. 06, 2011
Applicants:

Peter Fredrick Nortman, Monrovia, CA (US);

Daniel A. Sufrin-disler, Duarte, CA;

Phillip John Weicker, Pasadena, CA (US);

Patrick J. Mcgulpin, Ontario, CA;

Inventors:

Peter Fredrick Nortman, Monrovia, CA (US);

Daniel A. Sufrin-Disler, Duarte, CA;

Phillip John Weicker, Pasadena, CA (US);

Patrick J. Mcgulpin, Ontario, CA;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G01R 31/36 (2006.01); H02J 9/00 (2006.01); B60L 11/18 (2006.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
G01R 31/362 (2013.01); B60L 11/1866 (2013.01); G01R 31/3606 (2013.01); G01R 31/3658 (2013.01); H01M 10/48 (2013.01); H02J 7/0014 (2013.01); H02J 7/0016 (2013.01); H02J 7/0075 (2013.01); H02J 9/002 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2240/80 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7055 (2013.01); Y02T 10/7061 (2013.01); Y02T 10/92 (2013.01);
Abstract

A system and method for measuring a voltage of electrochemical cells of a pack. The system includes circuit elements individually associated with respective electrochemical cells of the pack and having electrical characteristics that are different such that individual electrochemical cells can be distinguished from one another. The system also includes a measurement circuit configured to measure the voltage of the electrochemical cells and to identify an electrochemical cell being measured based on an electrical characteristic of a circuit element associated with the electrochemical cell. Various self-diagnostic techniques are described, as well as techniques for measuring sense resistance, reducing sense resistance, and measuring changes in voltage of a cell over time.


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