Patent · US Active

Drive cascade system for a watercraft

US9365276B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rainer Hartig · Hamburg, DE
Dierk Schröder · Ahlhorn, DE
Kay Tigges · Harsefeld, DE
Michael Wycisk · Troisdorf, DE

Key dates

Filing date	Aug 12, 2015
Grant date	Jun 14, 2016
Priority date	—
Expiry date	Aug 12, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY04S10/126
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A watercraft and controller are disclosed. An embodiment includes a controller for the water craft being configured to operate at least one drive propeller of the drive system of the watercraft below a first propeller rotational speed according to a first operating state by operating at least one drive motor, connected to the at least one drive propeller, via a first alternating voltage; and operate the at least one drive propeller above the first propeller rotational speed according to a second operating state by operating the at least one drive motor via a second alternating voltage. In a transition from the first into the second operating state or vice versa, the first internal combustion engine is operated at such a rotational speed that the at least one drive propeller is driven at the first propeller rotational speed, and the first alternating voltage is synchronized with the second alternating voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.