Process for controlling a hybrid naval propulsion system and hybrid propulsion system
US9586665B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/903
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling the hybrid drive system of a water craft, comprising a combustion engine (1), an electric engine/generator (2), a drive train (5) having a propeller (7) and a storage battery (3), a control unit (8) and a clutch (4). In order to increase efficiency, during travel in the upper power range the electric engine (2) is additionally operated as a generator, and during travel in the middle and lower power ranges the electric engine (2) is operated with current from a storage battery (3). The drive train is designed so that the characteristic (20) thereof lies by a defined charging capacity below the point of minimum specific fuel consumption (e.g. 25), or is steeper than the characteristic (16) of a conventional construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.