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Machine translation
1. (WO1980000506) MONITORING DEVICE OF A RUDDER CONTROL UNIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000506    International Application No.:    PCT/DE1979/000083
Publication Date: 20.03.1980 International Filing Date: 13.08.1979
IPC:
B63H 25/36 (2006.01), G05B 9/02 (2006.01), G05D 3/12 (2006.01), G08B 9/06 (2006.01)
Applicants:
Inventors:
Priority Data:
2837842 30.08.1978 DE
Title (EN) MONITORING DEVICE OF A RUDDER CONTROL UNIT
(FR) DISPOSITIF DE CONTROLE D"UNE INSTALLATION DE COMMANDE DE GOUVERNAIL
Abstract: front page image
(EN)The monitoring device of a rudder control unit comprises an element (1) providing an order value signal corresponding to the desired angular position of the rudder and devices to make the rudder rotate so as to bring it to the angular position determined by the order value signal, the effective angular position of the rudder being detected by a receptor (2) which provides a corresponding instant value signal. The device further comprises a first threshold circuit (5) to which is applied the difference between the order value signal and the instant value signal and which provides an error signal when the difference between this signals excede a predetermined value, as well as a differenciation element to which is applied the instant value signal, a second threshold circuit (9) connected to the output of the differentiation element and providing an error signal as long as the speed of variation of the instant value signal which corresponds to the rotation speed of the rudder, remains under a predetermined minimum value, and a processing circuit (14) to which are applied the output signals of both threshold circuits and which provide a control signal for an alarm device upon the occurrence of two error signals, in so far as this error signals does not indicate a state in which the rudder moves towards the direction corresponding to a decrease of the angular difference between the order value and the instant value.
(FR)Le dispositif de controle d"une installation de commande de gouvernail comprend un element (1) fournissant un signal de valeur de consigne correspondant a la position angulaire desiree du gouvernail et des dispositifs pour faire tourner le gouvernail afin de le ramener dans la position angulaire determinee par le signal de valeur de consigne, la position angulaire effective du gouvernail etant captee par un recepteur (2) qui fournit un signal de valeur instantanee correspondant. Le dispositif comprend en outre un premier circuit a seuil (5) auquel est appliquee la difference entre les signaux de valeur de consigne et de valeur instantanee et qui fournit un signal d"erreur lorsque la difference entre ces signaux depasse une valeur predeterminee, ainsi qu"un element de differentiation auquel est applique le signal de valeur instantanee, un deuxieme circuit a seuil (9) relie a la sortie de l"element de differentiation et fournissant un signal d"erreur aussi longtemps que la vitesse de variation du signal de valeur instantanee, qui correspond a la vitesse de rotation du gouvernail, reste au-dessous d"une valeur minimale predeterminee, et un circuit de traitement (14) auquel son appliques les signaux de sortie des deux circuits a seuil et qui fournit un signal de commande pour un dispositif d"alarme lors de l"apparition de deux signaux d"erreur, pour autant que ces signaux d"erreur n"indiquent pas un etat dans lequel le gouvernail se deplace dans la direction correspondant a une diminution de la difference angulaire entre la valeur de consigne et la valeur instantanee.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)