A method for operating an anchor winch and an anchor winch for a vessel (100), comprising a winch drum (20) and an electric drive (30, 40, 41) configured to raise the anchor (11) by driving the winch drum (20) with an electric motor (30), to detect a first increase in a torque produced by the electric motor (30), which is higher than a first predetermined torque threshold, a subsequent decrease in the torque produced by the electric motor (30), which lasts for at least a predetermined time threshold and during which decrease a rate of decrease is within a predetermined range, and a subsequent second increase in the torque produced by the electric motor (30), which is higher than a second predetermined torque threshold, and, in response to detecting the second increase, determine that the anchor (30) has risen above a water surface (200) of a body of water.
METHOD FOR OPERATING ANCHOR WINCH, AND ANCHOR WINCH
VERFAHREN ZUM BETRIEB EINER ANKERWINDE UND ANKERWINDE
PROCÉDÉ POUR FAIRE FONCTIONNER UN GUINDEAU ET GUINDEAU
27.02.2019
Patent
Elektronische Ressource
Englisch