Method of driving a main rotor of a rotorcraft in the context of simulating a failure of one of the engnes of the rotorcraft
US10748441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Dec 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B9/44
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of driving a main rotor of a rotorcraft in rotation while implementing an in-flight simulation mode that simulates failure of one of the engines of the rotorcraft. In simulation mode, and when a current speed of rotation (NR) of the main rotor is detected as being lower than a predetermined threshold speed of rotation (S), the simulation mode is kept active and a regulation command is generated in order to perform a controlled operation (A) of gradually increasing the power delivered by the engines by authorizing the limit imposed by a setpoint (OEI/2) for regulating operation of the engine in simulation mode to be exceeded. Said gradually increasing power is interrupted by the pilot staying under training and operating a collective pitch manoeuver of the blade of the main rotor providing a rotation of main rotor at the predetermined threshold speed in rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.