Method for estimating the duration of the interruptions in...

G - Physics – 04 – F

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G04F 7/00 (2006.01) F25D 29/00 (2006.01) H05B 6/66 (2006.01) H05B 6/68 (2006.01)

Patent

CA 2346365

A method is described, for estimating the duration of the interruptions in the supply from the electric mains in an electric apparatus having an electronic control, in particular a household appliance. The described method comprises the following steps: a) measurement and storage, on the occasion of an interruption of the supply voltage of the apparatus, of the value of at least a quantity being characteristic of the operating status of the apparatus; b) measurement, on the occasion of the restoration of the supply voltage, of the current value of said characteristic quantity; c) comparison between the stored value and the current value of said characteristic quantity; d) estimation, on the basis of said comparison, of the duration of said interruption of the supply voltage.

Cette invention à une méthode permettant d'établir des valeurs estimatives de la durée d'interruptions survenues dans l'alimentation réseau d'un appareil électrique, à commande électronique, notamment d'un appareil électroménager. Cette méthode consiste, (a), à mesurer et à mémoriser, au moment de l'interruption de la tension d'alimentation de l'appareil, la valeur d'au moins une quantité caractéristique de l'état de fonctionnement de l'appareil, (b), à mesurer, au moment du rétablissement de la tension réseau, la valeur actuelle de cette quantité caractéristique, (c), à comparer la valeur mémorisée et la valeur actuelle de cette quantité caractéristique et, (d), à établir des valeurs estimatives, d'après les résultats de cette comparaison, de la durée de l'interruption de la tension d'alimentation.

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