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:
Jul. 08, 2014
Filed:
Jul. 19, 2011
Ali Zenati, Bordeaux, FR;
Philippe Desprez, Bordeaux, FR;
Gerard Barrailh, Gradignan, FR;
Hubert Razik, Meyzieu, FR;
Stephane Rael, Nancy, FR;
Ali Zenati, Bordeaux, FR;
Philippe Desprez, Bordeaux, FR;
Gerard Barrailh, Gradignan, FR;
Hubert Razik, Meyzieu, FR;
Stephane Rael, Nancy, FR;
Universite dé Lorraine, Nancy Cedex, FR;
Abstract
A method for determining a parameter such as the resistance of at least one accumulator of a battery. The method includes the following steps: measuring a first voltage (U1) when the current is substantially equal to a predetermined value; conducting the plurality of voltage and current measurements (Un; In) during a current pulse; calculating a plurality of resistance values (Rn) from the first voltage and from the plurality of voltage and current measurements; determining a resistance value as the average of the calculated resistance values and an associated standard deviation; determining an absolute uncertainty on the value of the resistance as the product of the standard deviation and of a Student coefficient; if the relative uncertainty is less than or equal to a predetermined accuracy threshold, validating the resistance value (R).