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:
Nov. 28, 2023
Filed:
Jul. 13, 2020
Saft, Levallois-Perret, FR;
François Teutsch, St. Médard d'Eyrans, FR;
Erwan Guillonneau, Eysines, FR;
SAFT, Perret, FR;
Abstract
The present invention concerns a method for estimating the state of charge (SoC) of an electrochemical element. The method comprises the initiation of an operation charging or discharging the electrochemical element that is traversed by a current and, while the charging or discharging operation is taking place: an operation charging or discharging a power storage element that is traversed by the same current as the electrochemical element, the power storage element having a voltage/charge level relationship that is bijective for at least two values of the voltage at the terminals of the storage element, the capacity CES of the storage element representing a portion of the total capacity of the electrochemical element; detection that the storage element is charged or discharged; calculation of a new value of the capacity CN of the electrochemical element by means of the formula CN=CN-I+CES for a charging operation and CN=CN-1−CES for a discharging operation, in which CN-1 is a previous known value of the capacity of the electrochemical element.