METHOD, SYSTEM AND COMPUTER PROGRAM FOR CONTROLLING PROPULSION OF A DRILLING RIG AS WELL AS A DRILLING RIG

摘要

A method for controlling propulsion of a drilling rig. The drilling rig includes a right propulsion unit and a left propulsion unit and mutually independent speed control and a transmission for driving the right propulsion unit and the left propulsion unit. The transmission provides at least two gear states of a gear box. A propulsion speed is request for the right propulsion unit and for the left propulsion unit. A difference is determined between a requested propulsion speed of the right propulsion unit and the left propulsion unit. A suitable gear state is determined based on the determined difference. Also a computer program product including program code for a computer for implementing the method. A system and a drilling rig equipped with the system.

主权项

1. A method for controlling propulsion of a drilling rig, said drilling rig comprising a right propulsion unit and a left propulsion unit and mutually independent speed control and a transmission for driving said right propulsion unit and left propulsion unit, said transmission providing at least two gear states of a gearbox, the method comprising:
requesting a propulsion speed for said right propulsion unit and for said left propulsion unit, determining a difference between a requested propulsion speed of said right propulsion unit and said left propulsion unit; and determining suitable gear state on the basis of the thus determined difference.