Patent · US Active

Drive cascade system for a watercraft

US9199711B2 · kind B2 · utility

1Cited by

4References

8Claims

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	Mar 7, 2013
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Mar 7, 2033

Classification

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

Abstract

A drive method is disclosed. An embodiment includes an operation of at least one drive propeller of the drive system below a first predefinable propeller rotational speed according to a first operating state by operating at least one drive motor, connected to the at least one drive propeller, of the drive system via a first alternating voltage. The method further includes operation of the at least one drive propeller above the first predefinable 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 operating state 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.