Abstract: A method of constructing a chart of correlations between a rapid discharge and a slow discharge in order to measure the wear of at least one electrochemical cell, including a measurement phase that includes a training sequence followed by a characterization sequence, and an aging phase. Each of the sequences includes charging-relaxing-discharging-relaxing under controlled conditions and is repeated with different conditions. The time of each discharge is measured. The aging phase includes an alternation of charges and discharges with no intermediate relaxation and is implemented before each repetition of the measurement phase, such that a real capacity is obtained for a plurality of pairs of imposed parameters.

Abstract: A method for determining an aging of a battery having a variable state of charge within a cycling window forming a portion of a nominal operating domain. The method comprises: getting a tracking of a state of charge of the battery as a function of time over an interval of time, where the tracking comprises an alternation of calls for charging and discharging within the cycling window; for a plurality of calls over the time interval, getting a value of an electric measure indicative of energy exchanged by the battery during said call and estimating a state of health of the battery during said call based on said value; and determining an aging of the battery, on the basis of the estimated states of health.

Abstract: A method for determination of a maximum real range of an electric vehicle equipped with a battery having a variable charging state within a cycling domain. The method includes getting a first and second magnitude indicative of an electric voltage at the terminals of the battery, respectively for an initial value and for a final value of the state of charge within the cycling domain. The method further includes a predetermined demand on the battery during which the charging state of the battery varies within the cycling domain from the initial value to a final value. The method further includes determining the maximum real range of the vehicle based on an estimate of a difference between the second magnitude and the first magnitude.

Abstract: A method of constructing a chart of correlations between a rapid discharge and a slow discharge in order to measure the wear of at least one electrochemical cell, including a measurement phase that includes a training sequence followed by a characterization sequence, and an aging phase. Each of the sequences includes charging-relaxing-discharging-relaxing under controlled conditions and is repeated with different conditions. The time of each discharge is measured. The aging phase includes an alternation of charges and discharges with no intermediate relaxation and is implemented before each repetition of the measurement phase, such that a real capacity is obtained for a plurality of pairs of imposed parameters.

Abstract: A method for determining an aging of a battery having a variable state of charge within a cycling window forming a portion of a nominal operating domain. The method comprises: getting a tracking of a state of charge of the battery as a function of time over an interval of time, where the tracking comprises an alternation of calls for charging and discharging within the cycling window; for a plurality of calls over the time interval, getting a value of an electric measure indicative of energy exchanged by the battery during said call and estimating a state of health of the battery during said call based on said value; and determining an aging of the battery, on the basis of the estimated states of health.