| 摘要 |
PCT No. PCT/DE95/01116 Sec. 371 Date Jun. 27, 1997 Sec. 102(e) Date Jun. 27, 1997 PCT Filed Aug. 23, 1995 PCT Pub. No. WO96/06774 PCT Pub. Date Mar. 7, 1996Ferries in particular may have identical drives at the bow and stern in order to avoid turning the ship when the direction of travel changes. Normally, when travelling, the rotation speed of the front screw is selected to be lower than the rotation speed of the rear screw. According to the invention, minimum-value regulation of the sum of the recorded real power levels of both drive systems is used for efficiency optimization. In the case of the associated arrangement, a regulator (10) is provided, with the real power levels of both drives as input variables, that rotation speed of the bow screw at which the sum of the real power levels is a minumum being determined in the regulator (10).
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