Method for monitoring the output of an electromechanical...

B - Operations – Transporting – 64 – C

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B64C 13/28 (2006.01) F16H 25/20 (2006.01) H02K 7/06 (2006.01) H02K 11/00 (2006.01)

Patent

CA 2707371

The invention relates to a method for monitoring the output of an electromechanical actuator of the rotary-linear type in order to detect a gradual seizing thereof, wherein said method comprises: measuring the intensity, representative of the motor torque, of the electrical current powering an induction winding (4) of the actuator and the axial stress undergone by an actuator rod (6); calculating the ratio (axial stress undergone by an actuator rod/motor torque) representative of the global output of the actuator and of its present state; and generating an evaluation of the present condition of the actuator based on its present state and optionally on previous stored states and/or on outer parameters.

Procédé de surveillance du rendement d'un actionneur électromécanique du type rotolinéaire aux fins de détection d'un grippage graduel de celui-ci, selon lequel : on mesure l'intensité, représentative du couple moteur, du courant électrique d'alimentation d'un enroulement inducteur (4) de l' actionneur et l'effort axial subi par une tige d' actionneur (6); on calcule le rapport [effort axial subi par la tige d' actionneur / couple moteur] représentatif du rendement global de l' actionneur et de son état présent; puis on génère une évaluation de l'état de santé présent de l' actionneur basée sur son état présent et éventuellement sur des états antérieurs tenus en mémoire et/ou sur des paramètres extérieurs.

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