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:
Apr. 27, 2021
Filed:
Apr. 16, 2015
Renault S.a.s., Boulogne Billancourt, FR;
Maxime Montaru, Joursac, FR;
RENAULT s.a.s., Boulogne Billancourt, FR;
Abstract
A method calibrates a battery allowing calibration data linked to its state of health to be memorized. The method includes determining at least one characteristic state of the battery, between fully charged and fully discharged, by detecting a peak in variation of the derivative of its open-circuit voltage while charging or discharging the battery, or at least one characteristic state when it is fully charged or fully discharged, or defined by crossing of a voltage, or current, threshold in a constant current, or constant voltage, phase while charging or discharging the battery. The method also includes defining a reference state of the battery based on this characteristic state and measuring the open-circuit voltages of the battery in the reference state for multiple different states of health and memorizing these calibration data including at least some pairs of actual state of health/open-circuit voltage values in an electronic memory.