METHOD FOR ESTIMATING CHARACTERISTIC PHYSICAL QUANTITIES OF AN ELECTRIC BATTERY

A method estimates physical quantities that are characteristic of an electric battery. The method includes acquiring values of a voltage across terminals of the electric battery and values of an intensity of a current output by the electric battery, over a determined duration. The method also includes obtaining the values of the physical quantities by solving a system of linear equations modeling an electrical behavior of the electric battery, unknowns of which are mathematically linked to the physical quantities and coefficients of which are obtained beforehand, by integrating voltage functions or intensity functions over the determined duration.