| 摘要 |
The invention relates to a method and an apparatus to control a propulsion drive. The propulsion drive comprises at least one first propeller drive, which rotates the first propeller and by which the propulsion power and/or rotating speed of the first propeller, and a second propeller drive, by which the second propeller is rotated and controlled. According to the invention the propulsion drive is controlled by a single control command, whereby it is generated from the control command a first control signal, by which the first propeller drive is controlled, and a second signal, by which the second propeller drive is controlled.
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