公开(公告)号：US11988143B2

公开(公告)日：2024-05-21

申请号：US17473072

申请日：2021-09-13

Applicant: ROLLS-ROYCE PLC

Inventor： Peter A Beecroft ,  Dongfeng Shi ,  Daniel Cutting ,  James A Cooke

IPC: F02C7/06 ,  F02C9/00

CPC classification number: F02C7/06 ,  F02C9/00 ,  F05D2260/80 ,  F05D2260/821

Abstract: A system and a method for determining a high oil consumption in a gas turbine engine of an aircraft are provided. The method includes determining one or more engine and aircraft conditions. The one or more engine and aircraft conditions includes at least one of an oil quantity, an oil temperature, an oil pressure, an engine speed, an aircraft altitude, and an aircraft attitude. The method further includes determining a trend in oil conditions based on at least the one or more engine and aircraft conditions. The trend in oil conditions provides at least one of a rate of consumption of oil or a time duration of remaining oil. The method further includes determining the high oil consumption based on a comparison of the trend in oil conditions with a threshold or a comparison model.

公开(公告)号：US12165530B2

公开(公告)日：2024-12-10

申请号：US17883815

申请日：2022-08-09

Applicant: ROLLS-ROYCE PLC

Inventor： Derek S Wall ,  Andrew R Mills ,  Peter A Beecroft ,  Marko Bacic ,  Romain Guicherd

IPC: G08G5/00

Abstract: A computer-implemented method of enabling optimisation of derate for a propulsion system of a vehicle, the method comprising: determining a derate for the propulsion system of the vehicle using: an algorithm; a vehicle model defining path constraints for the vehicle through space; a propulsion system model defining parameters of the propulsion system; an objective function defining one or more objectives; and controlling output of the determined derate.