公开(公告)号：US10378455B2

公开(公告)日：2019-08-13

申请号：US15688614

申请日：2017-08-28

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Sorin Bengea ,  Jeffrey C. Simmons

IPC: F02C9/26 ,  G05B17/02 ,  G06F9/455 ,  F23N1/00

Abstract: A system for generating a base point database for use by a full authority digital engine control (FADEC) to control a gas turbine engine includes a memory configured to store a model of the gas turbine engine. The system also includes a model generation processor coupled to the memory and designed to perform an initial simulation of the gas turbine engine using the model to determine ranges of sensitivity of desired engine parameters throughout an operating envelope, divide the operating envelope into a multiple regions based on the ranges of sensitivity of the desired engine parameters, select multiple combinations of base points within each of the multiple regions, perform an additional simulation of the gas turbine engine to determine an accuracy of interpolation between each of the multiple combinations of base points for each of the multiple regions, and select final base points from the multiple combinations of base points based on the accuracy.

公开(公告)号：US20180107176A1

公开(公告)日：2018-04-19

申请号：US15296859

申请日：2016-10-18

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： David Sembiante ,  Steven J. Sirica ,  Igor Fuksman ,  Jeffrey C. Simmons

IPC: G05B13/04 ,  F02C9/00

CPC classification number: G05B13/04 ,  F02C9/00 ,  F05D2270/44 ,  G06F17/5009 ,  G06F17/5095 ,  G06F2217/08 ,  G06F2217/16

Abstract: A system for simulating an operation of a gas turbine engine is disclosed, having a computing system and a FADEC in electronic communication therewith, the computer system simulating an engine state. In each delta time, being the FADEC sampling rate (1) the FADEC: senses the simulated engine state from the computing system; determines a difference between the sensed state and a predetermined engine state; and outputs engine control commands intended for achieving the predetermined state; and (2) the computing system: receives the FADEC output; utilizes the output in an m×m Jacobian Block, having m active balances; and performs a reduced balance simulation, wherein: fewer than m columns of the Block are analyzed, the analysis of each column defining a Rolling Jacobian Pass; output from the Rolling Jacobian Passes is integrated into the Block, to define an updated simulated engine state; and the updated state is communicated to the FADEC.