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:
Aug. 27, 2019
Filed:
Nov. 26, 2015
Applicant:
Renault S.a.s., Boulogne-Billancourt, FR;
Inventors:
Vincent Heiries, Saint-Jean-de-Moirans, FR;
Sylvain Leirens, Grenoble, FR;
Assignee:
Renault S.A.S., Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2019.01); G01R 31/389 (2019.01); G01R 31/367 (2019.01); B60L 58/12 (2019.01);
U.S. Cl.
CPC ...
G01R 31/3648 (2013.01); B60L 58/12 (2019.02); G01R 31/367 (2019.01); G01R 31/389 (2019.01);
Abstract
A method for estimating state-of-charge of a battery cell includes suppressing full execution of a capacitance-estimation algorithm for as long as a parameter does not exceed a certain threshold. The parameter is either a measured voltage value across the cell's terminals, the cell's estimated state-of-charge, or an amount of charge passing in or out of the cell during some interval. A battery-management system triggers full execution when the parameter falls below the threshold, or, if the parameter is the amount of charge passing, when it rises above the threshold.