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:
May. 07, 2024
Filed:
Jan. 15, 2019
Renault S.a.s., Boulogne-Billancourt, FR;
Nissan Motor Co., Ltd., Yokohama, JP;
Bruno Delobel, Issy les Moulineaux, FR;
Benoit Arsac, Versailles, FR;
Masato Origuchi, Rambouillet, FR;
Renault s.a.s., Boulogne-Billancourt, FR;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A method for detecting a faulty cell in an electric battery pack includes the following steps: measuring the no-load voltage at the terminals of each cell of the battery pack; calculating the deviation between the no-load voltage measured at the terminals of the cell and an average known no-load voltage as a function of the number of days during which the battery pack was not used; calculating the difference between the calculated deviation and a quantity n·σ, n being an integer no lower than 1, and σ being a known standard deviation which is a function of the number of days during which the battery pack was not used; and detecting a faulty cell if the difference is greater than zero.