公开(公告)号：US11873081B2

公开(公告)日：2024-01-16

申请号：US17342963

申请日：2021-06-09

Applicant: Bell Textron Inc.

Inventor： Charles Eric Covington ,  Chia-Wei Su ,  Darren Gregory Lang ,  Thomas Parsons ,  Cody Earl Fegely

IPC: B64C27/12 ,  B64D31/12

CPC classification number: B64C27/12 ,  B64D31/12

Abstract: A rotorcraft has a drive system including a main rotor coupled to a main rotor gearbox to rotate the main rotor at a rotor speed, a main engine coupled to the drive system to provide a first power, a supplemental engine coupled, when a first clutch is engaged, to the drive system to provide a second power additive to the first power, and a control system operable to control the main engine and the supplemental engine to provide a total power demand, where the main engine is controlled based on variations in rotor speed and a power compensation command to produce the first power, and the supplemental engine is controlled to produce the second power in response to a supplemental power demand.