Reciprocating actuator with closed loop servocontrol

Details Reciprocating actuator with closed loop servocontrol Reciprocating actuator with closed loop servocontrol

H - Electricity

02

P

H02P 25/02 (2006.01) H02K 33/02 (2006.01)

Patent

CA 2687069

The invention relates to a reciprocating actuator comprising at least one element moving reciprocally relative to a rack, a device for driving the moving element in a driving direction, means of returning the moving element in an opposite direction, at least one sensor for detecting the position of the moving element, and a servocontrol adapted to deliver, for each displacement cycle of the moving element in the driving direction, at least one correction signal (S5) representative of the difference between the energy imparted on the moving element during at least one preceding cycle, and the nominal energy to be imparted on this moving element to displace it exactly to its extreme set-point position, and to adjust on each cycle the control signal of the driving device according to said correction signal (S5).

L'invention concerne un actionneur alternatif comprenant au moins un équipage mobile alternativement par rapport à un bâti, un dispositif d'entraînement de l'équipage mobile dans un sens d'entraînement, des moyens de rappel de l'équipage mobile dans un sens opposé, au moins un capteur de détection de la position de l'équipage mobile, et un asservissement adapté pour délivrer pour chaque cycle de déplacement de l'équipage mobile dans le sens d'entraînement, au moins un signal de correction (S5) représentatif de la différence entre l'énergie impartie à l'équipage mobile au cours d'au moins un cycle précédant, et l'énergie nominale à impartir à cet équipage mobile pour le déplacer exactement jusqu'à sa position extrême de consigne, et pour ajuster à chaque cycle le signal de commande du dispositif d'entraînement en fonction dudit signal de correction (S5).

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