AN ELECTRICAL STEERING SYSTEM IN A MARINE VESSEL AND A METHOD FOR CONTROLLING SUCH A STEERING SYSTEM

A device and a method for controlling an electrical steering system in a marine vessel comprising at least one steerable propulsion unit, the electrical steering system comprising a main steering system (220; 220.1) that comprises a main electric motor (221; 221.1) and a main power source, e.g. a ma...

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Bibliographische Detailangaben
1. Verfasser: ARVIDSSON, Lennart
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A device and a method for controlling an electrical steering system in a marine vessel comprising at least one steerable propulsion unit, the electrical steering system comprising a main steering system (220; 220.1) that comprises a main electric motor (221; 221.1) and a main power source, e.g. a main battery (229; 229.1); a main steering angle sensor (226; 226.1) arranged to detect the steering angle of the propulsion unit; a main control unit (240; 240.1) arranged to steer the propulsion unit and to monitor the main steering system status; an auxiliary steering system comprising an auxiliary electric motor (231; 231.1) and an auxiliary battery (239; 239.1); and an auxiliary clutch (232; 232.1) arranged to connect a drive shaft of the auxiliary electric motor to the input shaft of the steering transmission (223; 223.1). The method involves the steps of engaging the auxiliary clutch at start-up of the propulsion unit; performing a diagnostic test of the main steering system during start-up; performing a calibration of an auxiliary steering angle sensor.